Bump version to 2.1

.gitignore

@@ -38,18 +38,3 @@ source/SoundTouchDll/Win32/
 source/SoundTouchDll/x64/
 source/SoundTouchDll/DllTest/Win32/
 source/SoundTouchDll/DllTest/x64/
-.vs
-
-# Files generated by Android Studio
-source/android-lib/.gradle
-source/android-lib/.idea
-**/*.iml
-source/android-lib/local.properties
-source/android-lib/build
-source/android-lib/.externalNativeBuild
-
-# CMake build directory
-build*
-CMakeFiles
-CMakeCache.txt
-*.cmake

CMakeLists.txt

@@ -1,191 +0,0 @@
-cmake_minimum_required(VERSION 3.5)
-project(SoundTouch VERSION 2.3.3 LANGUAGES CXX)
-set(CMAKE_CXX_STANDARD 17)
-
-include(GNUInstallDirs)
-
-set(COMPILE_OPTIONS)
-
-if(MSVC)
-  set(COMPILE_DEFINITIONS /O2 /fp:fast)
-else()
-  list(APPEND COMPILE_OPTIONS -Wall -Wextra -Wzero-as-null-pointer-constant -Wno-unknown-pragmas)
-  if(EMSCRIPTEN)
-    list(APPEND COMPILE_OPTIONS -O3)
-  else()
-    # Apply -ffast-math to allow compiler autovectorization generate effective SIMD code for arm compilation
-    list(APPEND COMPILE_OPTIONS -O3 -ffast-math)
-  endif()
-endif()
-
-#####################
-# SoundTouch library
-
-add_library(SoundTouch
-  source/SoundTouch/AAFilter.cpp
-  source/SoundTouch/BPMDetect.cpp
-  source/SoundTouch/cpu_detect_x86.cpp
-  source/SoundTouch/FIFOSampleBuffer.cpp
-  source/SoundTouch/FIRFilter.cpp
-  source/SoundTouch/InterpolateCubic.cpp
-  source/SoundTouch/InterpolateLinear.cpp
-  source/SoundTouch/InterpolateShannon.cpp
-  source/SoundTouch/mmx_optimized.cpp
-  source/SoundTouch/PeakFinder.cpp
-  source/SoundTouch/RateTransposer.cpp
-  source/SoundTouch/SoundTouch.cpp
-  source/SoundTouch/sse_optimized.cpp
-  source/SoundTouch/TDStretch.cpp
-)
-target_include_directories(SoundTouch PUBLIC
-   $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
-   $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
-)
-
-target_compile_definitions(SoundTouch PRIVATE ${COMPILE_DEFINITIONS})
-target_compile_options(SoundTouch PRIVATE ${COMPILE_OPTIONS})
-
-if(BUILD_SHARED_LIBS)
-  set_target_properties(SoundTouch PROPERTIES
-    VERSION ${CMAKE_PROJECT_VERSION}
-  )
-  if(WIN32)
-    set_target_properties(SoundTouch PROPERTIES
-      WINDOWS_EXPORT_ALL_SYMBOLS TRUE
-    )
-  else()
-    set_target_properties(SoundTouch PROPERTIES
-      SOVERSION ${PROJECT_VERSION_MAJOR}
-    )
-  endif()
-endif()
-
-option(INTEGER_SAMPLES "Use integers instead of floats for samples" OFF)
-if(INTEGER_SAMPLES)
-  target_compile_definitions(SoundTouch PRIVATE SOUNDTOUCH_INTEGER_SAMPLES)
-else()
-  target_compile_definitions(SoundTouch PRIVATE SOUNDTOUCH_FLOAT_SAMPLES)
-endif()
-
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "^(armv7.*|armv8.*|aarch64.*)$")
-  set(NEON_CPU ON)
-else()
-  set(NEON_CPU OFF)
-endif()
-
-option(NEON "Use ARM Neon SIMD instructions if in ARM CPU" ON)
-if(${NEON} AND ${NEON_CPU})
-  target_compile_definitions(SoundTouch PRIVATE SOUNDTOUCH_USE_NEON)
-  if(NOT CMAKE_SYSTEM_PROCESSOR MATCHES "^aarch64.*$")
-    target_compile_options(SoundTouch PRIVATE -mfpu=neon)
-  endif()
-endif()
-
-find_package(OpenMP)
-option(OPENMP "Use parallel multicore calculation through OpenMP" OFF)
-if(OPENMP AND OPENMP_FOUND)
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
-endif()
-
-install(
-  FILES
-    include/BPMDetect.h
-    include/FIFOSampleBuffer.h
-    include/FIFOSamplePipe.h
-    include/STTypes.h
-    include/SoundTouch.h
-    include/soundtouch_config.h
-  DESTINATION
-    "${CMAKE_INSTALL_INCLUDEDIR}/soundtouch"
-  COMPONENT SoundTouch
-)
-
-install(TARGETS SoundTouch
-  EXPORT SoundTouchTargets
-  ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-  LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-  RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
-  INCLUDES DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
-  COMPONENT SoundTouch
-)
-
-#######################
-# soundstretch utility
-
-option(SOUNDSTRETCH "Build soundstretch command line utility." ON)
-if(SOUNDSTRETCH)
-  add_executable(soundstretch
-    source/SoundStretch/main.cpp
-    source/SoundStretch/RunParameters.cpp
-    source/SoundStretch/WavFile.cpp
-  )
-  target_include_directories(soundstretch PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>)
-  target_compile_definitions(soundstretch PRIVATE ${COMPILE_DEFINITIONS})
-  target_compile_options(soundstretch PRIVATE ${COMPILE_OPTIONS})
-  target_link_libraries(soundstretch PRIVATE SoundTouch)
-  if(INTEGER_SAMPLES)
-    target_compile_definitions(soundstretch PRIVATE SOUNDTOUCH_INTEGER_SAMPLES)
-  endif()
-
-  install(TARGETS soundstretch
-    DESTINATION bin
-    COMPONENT soundstretch
-  )
-endif()
-
-########################
-# SoundTouchDll library
-
-option(SOUNDTOUCH_DLL "Build SoundTouchDLL C wrapper library" OFF)
-if(SOUNDTOUCH_DLL)
-  add_library(SoundTouchDLL SHARED
-    source/SoundTouchDLL/SoundTouchDLL.cpp
-    source/SoundTouchDLL/SoundTouchDLL.rc
-  )
-  set_target_properties(SoundTouch PROPERTIES POSITION_INDEPENDENT_CODE TRUE)
-  target_compile_options(SoundTouchDLL PRIVATE ${COMPILE_OPTIONS})
-  set_target_properties(SoundTouchDLL PROPERTIES CXX_VISIBILITY_PRESET hidden)
-  target_compile_definitions(SoundTouchDLL PRIVATE DLL_EXPORTS)
-  target_include_directories(SoundTouchDLL PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>)
-  target_link_libraries(SoundTouchDLL PRIVATE SoundTouch)
-  install(FILES source/SoundTouchDLL/SoundTouchDLL.h DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/soundtouch" COMPONENT SoundTouchDLL)
-  install(TARGETS SoundTouchDLL EXPORT SoundTouchTargets COMPONENT SoundTouchDLL)
-endif()
-
-########################
-
-# pkgconfig
-set(prefix "${CMAKE_INSTALL_PREFIX}")
-set(execprefix "\${prefix}")
-set(libdir "\${prefix}/${CMAKE_INSTALL_LIBDIR}")
-set(includedir "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}")
-set(VERSION "${CMAKE_PROJECT_VERSION}")
-configure_file(soundtouch.pc.in "${CMAKE_CURRENT_BINARY_DIR}/soundtouch.pc" @ONLY)
-install(FILES "${CMAKE_CURRENT_BINARY_DIR}/soundtouch.pc" DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig" COMPONENT SoundTouch)
-
-# CMake config
-include(CMakePackageConfigHelpers)
-set(SOUNDTOUCH_INSTALL_CMAKEDIR "${CMAKE_INSTALL_LIBDIR}/cmake/SoundTouch")
-install(
-  EXPORT SoundTouchTargets
-  FILE SoundTouchTargets.cmake
-  NAMESPACE SoundTouch::
-  DESTINATION "${SOUNDTOUCH_INSTALL_CMAKEDIR}"
-  COMPONENT SoundTouch
-)
-configure_package_config_file(SoundTouchConfig.cmake.in
-  "${CMAKE_CURRENT_BINARY_DIR}/SoundTouchConfig.cmake"
-  INSTALL_DESTINATION "${SOUNDTOUCH_INSTALL_CMAKEDIR}"
-)
-write_basic_package_version_file(
-  "${CMAKE_CURRENT_BINARY_DIR}/SoundTouchConfigVersion.cmake"
-  VERSION "${CMAKE_PROJECT_VERSION}"
-  COMPATIBILITY SameMajorVersion
-)
-install(
-  FILES
-    "${CMAKE_CURRENT_BINARY_DIR}/SoundTouchConfig.cmake"
-    "${CMAKE_CURRENT_BINARY_DIR}/SoundTouchConfigVersion.cmake"
-  DESTINATION "${SOUNDTOUCH_INSTALL_CMAKEDIR}"
-  COMPONENT SoundTouch
-)

COPYING.TXT

@@ -2,7 +2,7 @@
 		       Version 2.1, February 1999
 
  Copyright (C) 1991, 1999 Free Software Foundation, Inc.
- 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+     59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  Everyone is permitted to copy and distribute verbatim copies
  of this license document, but changing it is not allowed.
 
@@ -117,7 +117,7 @@ be combined with the library in order to run.
 
   0. This License Agreement applies to any software library or other
 program which contains a notice placed by the copyright holder or
-other authorized party saying it may be distributed under the terms of
+other authoried party saying it may be distributed under the terms of
 this Lesser General Public License (also called "this License").
 Each licensee is addressed as "you".
 

README.html

@@ -1,22 +1,20 @@
 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 <html>
-
 <head>
   <title>SoundTouch library README</title>
+  <meta http-equiv="Content-Type"
+ content="text/html; charset=windows-1252">
   <meta http-equiv="Content-Language" content="en-us">
   <meta name="author" content="Olli Parviainen">
-  <meta name="description" content="Readme file for SoundTouch audio processing library">
+  <meta name="description"
-  <style>
+ content="Readme file for SoundTouch audio processing library">
-    body {
+  <style> <!-- .normal { font-family: Arial }
-      font-family: Arial, Helvetica;
+    --></style>
-    }
-  </style>
 </head>
-
 <body class="normal">
 <hr>
-  <h1>SoundTouch audio processing library v2.3.3</h1>
+<h1>SoundTouch audio processing library v2.1</h1>
-  <p class="normal">SoundTouch library Copyright &copy; Olli Parviainen 2001-2024</p>
+<p class="normal">SoundTouch library Copyright &copy Olli Parviainen 2001-2018</p>
 <hr>
 <h2>1. Introduction </h2>
 <p>SoundTouch is an open-source audio processing library that allows
@@ -34,12 +32,11 @@
 <h3>1.1 Contact information </h3>
 <p>Author email: oparviai 'at' iki.fi </p>
 <p>SoundTouch WWW page: <a href="http://soundtouch.surina.net">http://soundtouch.surina.net</a></p>
-  <p>SoundTouch git repository: <a
+<p>SoundTouch git repository: <a href="https://gitlab.com/soundtouch/soundtouch.git">https://gitlab.com/soundtouch/soundtouch.git</a></p>
-      href="https://codeberg.org/soundtouch/soundtouch.git">https://codeberg.org/soundtouch/soundtouch.git</a></p>
 <hr>
 <h2>2. Compiling SoundTouch</h2>
 <p>Before compiling, notice that you can choose the sample data format if it's 
-    desirable to use 16bit integer sample data instead of floating point samples. See
+desirable to use floating point sample data instead of 16bit integers. See 
 section &quot;sample data format&quot; for more information.</p>
 <p>Also notice that SoundTouch can use OpenMP instructions for parallel 
 computation to accelerate the runtime processing speed in multi-core systems, 
@@ -72,17 +69,15 @@
     <li>x64 64bit: C:\Program Files (x86)\Microsoft Visual Studio 
     9.0\VC\redist\amd64\Microsoft.VC90.OPENMP\vcomp90.dll</li>
 </ul>
-  <p>In other VC++ versions the required library will be expectedly found in similar
+<p>In Visual Studio 2008, a SP1 version may be required for these libraries. In 
+other VC++ versions the required library will be expectedly found in similar 
 &quot;redist&quot; location.</p>
 <p>Notice that as minor demonstration of a &quot;dll hell&quot; phenomenon both the 32-bit 
 and 64-bit version of vcomp90.dll have the same filename but different contents, 
-    thus choose the proper version to allow the program to start.</p>
+thus choose the proper version to allow the program start.</p>
 <h3>2.2. Building in Gnu platforms</h3>
 <p>The SoundTouch library compiles in practically any platform
-    supporting GNU compiler (GCC) tools.
+supporting GNU compiler (GCC) tools. SoundTouch requires GCC version 4.3 or later.</p>
-  <h4>2.2.1 Compiling with autotools</h4>
-  <p>To install build prerequisites for 'autotools' tool chain:</p>
-  <pre>    sudo apt-get install automake autoconf libtool build-essential</pre>
 <p>To build and install the binaries, run the following commands in 
 /soundtouch directory:</p>
 <table border="0" cellpadding="0" cellspacing="4">
@@ -129,32 +124,41 @@
     </tr>
   </tbody>
 </table>
+<h4><b>2.2.1 Required GNU tools</b></h4>
+<p> <span style="font-weight: bold;">Bash shell</span>, <span
+ style="font-weight: bold;">GNU C++ compiler</span>, <span
+ style="font-weight: bold;">libtool</span>, <span
+ style="font-weight: bold;">autoconf</span> and <span
+ style="font-weight: bold;">automake</span> tools
+are required for compiling the SoundTouch library. These are usually
+included with the GNU/Linux distribution, but if not, install these
+packages first. For example, Ubuntu Linux can acquire and install
+these with the following command:</p>
+<pre><b>sudo apt-get install automake autoconf libtool build-essential</b></pre>
+<h4><b>2.2.2 Problems with GCC compiler compatibility</b></h4>
+<p>At the release time the SoundTouch package has been tested to
+compile in GNU/Linux platform. However, If you have problems getting the
+SoundTouch library compiled, try disabling optimizations that are specific for 
+x86 processors by running <b>./configure</b> script with switch
+<blockquote>
+<pre>--enable-x86-optimizations=no</pre>
+</blockquote>
 
-  <b>Compiling portable Shared Library / DLL version</b>
+Alternatively, if you don't use GNU Configure system, edit file "include/STTypes.h" 
-  <p> The GNU autotools compilation automatically builds an additional dynamic-link version
+directly and remove the following definition:<blockquote>
-    of SoundTouch library that features position-independent code and "C"-style API that is
+  <pre>#define SOUNDTOUCH_ALLOW_X86_OPTIMIZATIONS 1</pre>
-    more suitable for calling the SoundTouch routines from other programming languages.</p>
+</blockquote>
-    <p>This dynamic-link library is built under source/SoundTouchDLL directory, whose
-    subdirectories also comtain simple example apps that use the dynamic-link library.
-  </p>
 
-  <h4><b>2.2.2 Compiling with cmake</b></h4>
+<h4><b>2.2.3 Compiling Shared Library / DLL version in Cygwin</b></h4>
-  <p>'cmake' build scripts are provided as an alternative to the autotools toolchain.</p>
+    <p>
-  <p>To install cmake build prerequisites:</p>
+        The GNU compilation does not automatically create a shared-library version of 
-  <pre>    sudo apt-get install libtool build-essential cmake</pre>
+        SoundTouch (.so or .dll). If such is desired, then you can create it as follows 
-  <p>To build:</p>
+        after running the usual compilation:</p>
-  <pre>
+    <blockquote>
-    cmake .
+  <pre>g++ -shared -static -DDLL_EXPORTS -I../../include -o SoundTouch.dll \
-    make -j
+     SoundTouchDLL.cpp ../SoundTouch/.libs/libSoundTouch.a
-    make install</pre>
+sstrip SoundTouch.dll</pre>
-  <p>To list available build options:</p>
+</blockquote>
-  <pre>
-    cmake -LH</pre>
-  <p>To compile the additional portable Shared Library / DLL version with the native C-language API:</p>
-  <pre>
-    cmake . -DSOUNDTOUCH_DLL=ON
-    make -j
-    make install</pre>
 
 <h3>2.3. Building in Android</h3>
 <p>Android compilation instructions are within the 
@@ -169,26 +173,18 @@
 example application that processes WAV audio files using SoundTouch library in 
 Android devices.</p>
 
-  <h3>2.4. Building in Mac</h3>
-  <p>Install autoconf tool as instructed in <a
-      href="http://macappstore.org/autoconf/">http://macappstore.org/autoconf/</a>, or alternatively the 'cmake' toolchain.</p>
-  <p>Then, build as described above in section "Building in Gnu platforms".</p>
-
 <hr>
 <h2>3. About implementation &amp; Usage tips <h3>3.1. Supported sample data formats</h3>
 <p>The sample data format can be chosen between 16bit signed integer
-      and 32bit floating point values.</p>
+and 32bit floating point values. The default is 32bit floating point format, 
-    </p> The default sample type is 32bit floating point format,
+which will also provide slightly better sound quality over the integer format. </p>
-    which also provides better sound quality than integer format because
-    integer algorithms need to scale already intermediate calculation results to
-    avoid integer overflows. These early integer scalings can slightly degrade
-    output quality.</p>
 <p> In Windows environment, the sample data format is chosen in file
 "STTypes.h" by choosing one of the following defines:</p>
 <ul>
   <li> <span style="font-weight: bold;">#define
 SOUNDTOUCH_INTEGER_SAMPLES</span> for 16bit signed integer</li>
-      <li> <span style="font-weight: bold;">#define </span><span style="font-weight: bold;">SOUNDTOUCH_</span><span
+  <li> <span style="font-weight: bold;">#define </span><span
+ style="font-weight: bold;">SOUNDTOUCH_</span><span
  style="font-weight: bold;">FLOAT_SAMPLES</span> for 32bit floating
 point</li>
 </ul>
@@ -205,7 +201,7 @@
 separate mono channels, this isn't recommended because processing the
 channels separately would result in losing the phase coherency between
 the channels, which consequently would ruin the stereo effect.</p>
-    <p>Sample rates between 8000-48000Hz are supported.</p>
+<p>Sample rates between 8000-48000H are supported.</p>
 <h3>3.2. Processing latency</h3>
 <p>The processing and latency constraints of the SoundTouch library are:</p>
 <ul>
@@ -304,8 +300,7 @@
     <br>
 This shouldn't be that critical parameter. If you reduce the
 DEFAULT_SEQUENCE_MS setting by a large amount, you might wish to try a
-        smaller value on this.
+smaller value on this.</li>
-      </li>
 </ul>
 <p>Notice that these parameters can also be set during execution time
 with functions "<strong>TDStretch::setParameters()</strong>" and "<strong>SoundTouch::setSetting()</strong>".</p>
@@ -363,29 +358,6 @@
   </tbody>
 </table>
 <h3>3.5 Performance Optimizations </h3>
-    <p><strong>Integer vs floating point:</strong></p>
-    <p>Floating point sample type is generally recommended because it provides
-      better sound quality.</p>
-
-    <p>However, execution speed difference between integer and floating point processing
-      depends on the CPU architecture. As rule of thumb,
-    <ul>
-      <li>in 32-bit x86 floating point and integer are roughly equally fast</li>
-      <li>in 64-bit x86/x64 floating point can be significantly faster than integer
-        version, because MMX integer optimizations are not available in the x64 architecture.
-        That depends on the compiler however, so that gcc can autovectorize integer routines
-        to work equally fast as floating point, where as Visual C++ (2017) does not
-        perform equally well and produces integer code that runs some 3x slower than
-        SSE-optimized floating poing code.
-      </li>
-      <li>in ARMv7 integer routines are twice as fast as floating point. Their
-        relative difference is roughly the same both with and without NEON; NEON
-        vfpu can however bring 2.4x speed improvement.
-      </li>
-      <li>in other platforms: try out if the execution time performance makes a
-        big difference</li>
-    </ul>
-    </p>
 <p><strong>General optimizations:</strong></p>
 <p>The time-stretch routine has a 'quick' mode that substantially
 speeds up the algorithm but may slightly compromise the sound quality. 
@@ -400,15 +372,11 @@
 intrinsics, providing about a 3x processing speedup for x86 compatible 
 processors vs. non-SIMD implementation:</p>
 <ul>
-      <li> MMX optimized routines are used in 32-bit x86 build when 16bit integer
+    <li> Intel MMX optimized routines are used with x86 CPUs when 16bit integer 
     sample type is used</li>
-      <li> SSE optimized routines are used in 32- and 64-bit x86 CPUs when 32bit
+  <li> Intel SSE optimized routines are used with x86 CPUs when 32bit floating 
-        floating point sample type is used</li>
+  point sample type is used</li>
 </ul>
-    <p>The algorithms are tuned to utilize autovectorization efficiently
-      also in other CPU architectures, for example ARM cpus see approx 2.4x processing
-      speedup when NEON SIMD support is present.
-    </p>
 <h3>3.5 OpenMP parallel computation</h3>
 <p>SoundTouch 1.9 onwards support running the algorithms parallel in several CPU 
 cores. Based on benchmark the experienced multi-core processing speed-up gain 
@@ -416,8 +384,7 @@
 quad-core ARM of Raspberry Pi2). </p>
 <p>See an external blog article with more detailed discussion about the
 <a href="http://www.softwarecoven.com/parallel-computing-in-embedded-mobile-devices/">
-        SoundTouch OpenMP optimization</a>.
+SoundTouch OpenMP optimization</a>.</p>
-    </p>
 <p>The parallel computing support is implemented using OpenMP spec 3.0 
 instructions. These instructions are supported by Visual C++ 2008 and later, and 
 GCC v4.2 and later. Compilers that do not supporting OpenMP will ignore these 
@@ -441,8 +408,7 @@
     </strong>settings. Set 
     there &quot;<strong>OpenMP support</strong>&quot; to &quot;<strong>Yes</strong>&quot;. Alternatively add 
     <strong>/openmp</strong> switch to command-line 
-        parameters
+    parameters</li>
-      </li>
     <li><strong>GNU</strong>: Run the configure script with &quot;<strong>./configure 
     --enable-openmp</strong>&quot; switch, then run make as usually</li>
     <li><strong>Android</strong>: Add &quot;<strong>-fopenmp</strong>&quot; switches to compiler &amp; linker 
@@ -453,7 +419,7 @@
 <h2><a name="SoundStretch"></a>4. SoundStretch audio processing utility
 </h2>
 <p>SoundStretch audio processing utility<br>
-      Copyright (c) Olli Parviainen 2002-2024</p>
+    Copyright (c) Olli Parviainen 2002-2015</p>
 <p>SoundStretch is a simple command-line application that can change
 tempo, pitch and playback rates of WAV sound files. This program is
 intended primarily to demonstrate how the "SoundTouch" library can be
@@ -608,65 +574,6 @@
 <hr>
 <h2>5. Change History</h2>
 <h3>5.1. SoundTouch library Change History </h3>
-    <p><b>2.3.3:</b></p>
-    <ul class="current">
-        <li>Fixing compiler warnings, maintenance fixes to make/build files for various systems
-        </li>
-    </ul>
-    <p><b>2.3.2:</b></p>
-    <ul>
-        <li>Improve autotools makefiles to build the `SoundTouchDLL` dynamic-link link library with
-          C-style API. This library variation is easier to import and use from other programming
-          languages than the default C++ library.
-      </li>
-    </ul>
-    <p><b>2.3.1:</b></p>
-    <ul>
-      <li>Adjusted cmake build settings and header files that cmake installs</li>
-    </ul>
-    <p><b>2.3.0:</b></p>
-    <ul>
-      <li>Disable setting "SOUNDTOUCH_ALLOW_NONEXACT_SIMD_OPTIMIZATION" by default. The original
-        purpose of this setting was to avoid performance penalty due to unaligned SIMD memory
-        accesses in old CPUs, but that is not any more issue in concurrent CPU SIMD implementations
-        and having this setting enabled can cause slight compromise in result quality.
-      </li>
-      <li>Bugfix: soundtouch.clear() to really clear whole processing pipeline state. Earlier
-        individual variables were left uncleared, which caused slightly different result if
-        the same audio stream were processed again after calling clear().
-      </li>
-      <li>Bugfix: TDstretch to align initial offset position to be in middle of correlation search
-        window. This ensures that with zero tempo change the output will be same as input.
-      </li>
-      <li>Bugfix: Fix a bug in TDstrectch with too small initial skipFract value that occurred
-        with certain processing parameter settings: Replace assert with assignment that
-        corrects the situation.
-      </li>
-      <li>Remove OpenMP "_init_threading" workaround from Android build as it's not needed with concurrent
-        Android SDKs any more.</li>
-    </ul>
-    <p><b>2.2:</b></p>
-    <ul>
-      <li>Improved source codes so that compiler can autovectorize them more effectively.
-        This brings remarkable improvement e.g. ARM cpus equipped with NEON vfpu: Bencmarked
-        2.4x improvement in execution speed in ARMv7l vs the previous SoundTouch version
-        for both integer and floating point sample types.
-      </li>
-      <li>Bugfix: Resolved bad sound quality when using integer sample types in non-x86 CPU</li>
-      <li>Bugfix: Fixed possible reading past end of array in BPM peak detection algorithm</li>
-    </ul>
-    <p><b>2.1.2:</b></p>
-    <ul>
-      <li>Bump version to 2.1.2 also in configure.ac. The earlier release had old version info for GNU autotools.</li>
-    </ul>
-    <p><b>2.1.1:</b></p>
-    <ul>
-      <li>Bugfixes: Fixed potential buffer overwrite bugs in WavFile routines. Replaced asserts with runtime exceptions.
-      </li>
-      <li>Android: Migrated the SoundTouch Android example to new Android Studio</li>
-      <li>Automake: unset ACLOCAL in bootstrap script in case earlier build script has set it</li>
-
-    </ul>
     <p><b>2.1:</b></p>
     <ul>
       <li>Refactored C# interface example</li>
@@ -683,13 +590,11 @@
     </ul>
     <p><b>2.0:</b></p>
     <ul>
-      <li>Added functions to get initial processing latency, duration ratio between the original input and processed
+        <li>Added functions to get initial processing latency, duration ratio between the original input and processed output tracks, and clarified reporting of input/output batch sizes</li>
-        output tracks, and clarified reporting of input/output batch sizes</li>
         <li>Fixed issue that added brief sequence of silence to beginning of output audio</li>
         <li>Adjusted algorithm parameters to reduce reverberating effect at tempo slowdown</li>
         <li>Bugfix: Fixed a glitch that could cause negative array indexing in quick seek algorithm</li>
-      <li>Bugfix: flush() didn't properly flush final samples from the pipeline on 2nd time in case that soundtouch
+        <li>Bugfix: flush() didn't properly flush final samples from the pipeline on 2nd time in case that soundtouch object instance was recycled and used for processing a second audio stream.</li>
-        object instance was recycled and used for processing a second audio stream.</li>
         <li>Bugfix: Pi value had incorrect 9th/10th decimals</li>
         <li>Added C# example application that uses SoundTouch dll library for processing MP3 files</li>
     </ul>
@@ -699,10 +604,8 @@
     </ul>
     <p><b>1.9.1:</b></p>
     <ul>
-      <li>Improved SoundTouch::flush() function so that it returns precisely the desired amount of samples for exact
+        <li>Improved SoundTouch::flush() function so that it returns precisely the desired amount of samples for exact output duration control</li>
-        output duration control</li>
+        <li>Redesigned quickseek algorithm for improved sound quality when using the quickseek mode. The new quickseek algorithm can find 99% as good results as the 
-      <li>Redesigned quickseek algorithm for improved sound quality when using the quickseek mode. The new quickseek
-        algorithm can find 99% as good results as the
         default full-scan mode, while the quickseek algorithm is remarkable less 
         CPU intensive.</li>
         <li>Added adaptive integer divider scaling for improved sound quality when using integer processing algorithm
@@ -710,8 +613,7 @@
     </ul>
 <p><b>1.9:</b></p>
 <ul>
-      <li>Added support for parallel computation support via OpenMP primitives for better performance in multicore
+    <li>Added support for parallel computation support via OpenMP primitives for better performance in multicore systems. 
-        systems.
         Benchmarks show that achieved parallel processing speedup improvement 
     typically range from +30% (x86 dual-core) to +180% (ARM quad-core). The 
     OpenMP optimizations are disabled by default, see OpenMP notes above in this 
@@ -882,14 +784,11 @@
   <li> Initial release</li>
 </ul>
 <h3>5.2. SoundStretch application Change History </h3>
-    <p><b>2.3.3:</b></p>
-    <ul class="current_soundstretch">
-      <li>Added support for Asian / non-latin filenames in Windows. Gnu platform has supported them already earlier.</li>
-    </ul>
 <p><b>1.9:</b></p>
 <ul>
     <li>Added support for WAV file 'fact' information chunk.</li>
 </ul>
+
 <p><b>1.7.0:</b></p>
 <ul>
     <li>Bugfixes in Wavfile: exception string formatting, avoid getLengthMs() integer 
@@ -958,16 +857,13 @@
   <li> Jamie Bullock</li>
   <li> Chris Bryan</li>  
   <li> Jacek Caban</li>
-      <li> Marketa Calabkova</li>
   <li> Brian Cameron</li>
   <li> Jason Champion</li>
-      <li> Giuseppe Cigala</li>
   <li> David Clark</li>
   <li> Patrick Colis</li>
   <li> Miquel Colon</li>
   <li> Jim Credland</li>
   <li> Sandro Cumerlato</li>
-      <li> Gerry Fan</li>
   <li> Justin Frankel</li>
   <li> Masa H.</li>
   <li> Jason Garland</li>
@@ -986,14 +882,12 @@
   <li> Michael Pruett</li>
   <li> Rajeev Puran</li>
   <li> RJ Ryan</li>
-      <li> Serge Sans Paille</li>
   <li> John Sheehy</li>
   <li> Tim Shuttleworth</li>
   <li> Albert Sirvent</li>
   <li> Tyson Smith</li>
   <li> John Stumpo</li>
   <li> Mario di Vece</li>
-      <li> Rémi Verschelde</li>
   <li> Katja Vetter</li>
   <li> Wu Q.</li>
 </ul>
@@ -1015,6 +909,6 @@
 <p>---</p>
 <p>commercial license alternative also available, contact author for details.</p>
 <hr>
+<p><i>README.html file updated in May-2018</i></p>
 </body>
-
 </html>

SoundTouchConfig.cmake.in

@@ -1,14 +0,0 @@
-@PACKAGE_INIT@
-
-include("${CMAKE_CURRENT_LIST_DIR}/SoundTouchTargets.cmake")
-
-check_required_components(SoundTouch)
-
-get_target_property(SoundTouch_LOCATION SoundTouch::SoundTouch LOCATION)
-message(STATUS "Found SoundTouch: ${SoundTouch_LOCATION}")
-
-if(@SOUNDTOUCH_DLL@)
-  check_required_components(SoundTouchDLL)
-  get_target_property(SoundTouchDLL_LOCATION SoundTouch::SoundTouchDLL LOCATION)
-  message(STATUS "Found SoundTouchDLL: ${SoundTouchDLL_LOCATION}")
-endif()

bin/run_test.cmd

@@ -1,8 +1,8 @@
-set SOUND_DIR=c:\dev\test_sounds
+set SOUND_DIR=d:\dev\test_sounds
 set OUT_DIR=.
 set TEST_NAME=semmari
 set OUT_NAME=out
-set SS=soundstretch_x64
+set SS=soundstretch
 set TEST_PARAM=-pitch=-3 -bpm
 
 call %SS% %SOUND_DIR%\%TEST_NAME%-8b1.wav %OUT_DIR%\%OUT_NAME%-8b1.wav %TEST_PARAM%

bootstrap

@@ -1,7 +1,5 @@
 #!/bin/sh
 
-unset ACLOCAL
-
 if [ "$1" = "--clean" ]
 then
 	if [ -a Makefile ]
@@ -16,6 +14,9 @@ then
 
 	rm -rf configure libtool aclocal.m4 `find . -name Makefile.in` autom4te*.cache config/config.guess config/config.h.in config/config.sub config/depcomp config/install-sh config/ltmain.sh config/missing config/mkinstalldirs config/stamp-h config/stamp-h.in
 
+	#gettextie files
+	#rm -f ABOUT-NLS config/config.rpath config/m4/codeset.m4 config/m4/gettext.m4 config/m4/glibc21.m4 config/m4/iconv.m4 config/m4/intdiv0.m4 config/m4/inttypes-pri.m4 config/m4/inttypes.m4 config/m4/inttypes_h.m4 config/m4/isc-posix.m4 config/m4/lcmessage.m4 config/m4/lib-ld.m4 config/m4/lib-link.m4 config/m4/lib-prefix.m4 config/m4/progtest.m4 config/m4/stdint_h.m4 config/m4/uintmax_t.m4 config/m4/ulonglong.m4 po/Makefile.in.in po/Rules-quot po/boldquot.sed po/en@boldquot.header po/en@quot.header po/insert-header.sin po/quot.sed po/remove-potcdate.sin 
+
 else
 	export AUTOMAKE="automake --add-missing --foreign --copy"
 	autoreconf -fisv && rm -f `find . -name "*~"` && rm -f ChangeLog

configure.ac

@@ -15,25 +15,22 @@ dnl this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 dnl Place - Suite 330, Boston, MA  02111-1307, USA
 # Process this file with autoconf to produce a configure script.
 
-AC_INIT([SoundTouch],[2.3.2],[http://www.surina.net/soundtouch])
+AC_INIT([SoundTouch], [2.0.0], [http://www.surina.net/soundtouch])
 dnl Default to libSoundTouch.so.$LIB_SONAME.0.0
 LIB_SONAME=1
 AC_SUBST(LIB_SONAME)
 
 AC_CONFIG_AUX_DIR(config)
 AC_CONFIG_MACRO_DIR([config/m4])
-AC_CONFIG_HEADERS([config.h include/soundtouch_config.h])
+AM_CONFIG_HEADER([config.h include/soundtouch_config.h])
 AM_INIT_AUTOMAKE
 AM_SILENT_RULES([yes])
 #AC_DISABLE_SHARED	dnl This makes libtool only build static libs 
 AC_DISABLE_STATIC	dnl This makes libtool only build shared libs
-#AC_USE_SYSTEM_EXTENSIONS 		dnl enable posix extensions in glibc
+#AC_GNU_SOURCE 		dnl enable posix extensions in glibc
 
 AC_LANG(C++)
 
-# Compiler flags. Apply -ffast-math to allow compiler autovectorization generate effective SIMD code for arm compilation
-CXXFLAGS="${CXXFLAGS} -O3 -ffast-math -Wall -Wextra -Wzero-as-null-pointer-constant -Wno-unknown-pragmas"
-
 # Set AR_FLAGS to avoid build warning "ar: `u' modifier ignored since `D' is the default (see `U')"
 AR_FLAGS='cr'
 
@@ -50,7 +47,7 @@ AC_PROG_INSTALL
 #AC_PROG_LN_S
 AC_PROG_MAKE_SET
 
-LT_INIT dnl turn on using libtool
+AM_PROG_LIBTOOL dnl turn on using libtool
 
 
 
@@ -58,11 +55,10 @@ LT_INIT dnl turn on using libtool
 dnl ############################################################################
 dnl # Checks for header files                                                  #
 dnl ############################################################################
-
+AC_HEADER_STDC
 #AC_HEADER_SYS_WAIT
 #	add any others you want to check for here
 AC_CHECK_HEADERS([cpuid.h])
-AC_CHECK_HEADERS([arm_neon.h])
 
 if test "x$ac_cv_header_cpuid_h" = "xno"; then
 	AC_MSG_WARN([The cpuid.h file was not found therefore the x86 optimizations will be disabled.])
@@ -81,34 +77,31 @@ AC_C_INLINE
 
 
 AC_ARG_ENABLE(integer-samples,
-              [AS_HELP_STRING([--enable-integer-samples],[use integer samples instead of floats [default=no]])],,
+              [AC_HELP_STRING([--enable-integer-samples],
+                              [use integer samples instead of floats
+[default=no]])],,
               [enable_integer_samples=no])
 
 
 AC_ARG_ENABLE(openmp,
-              [AS_HELP_STRING([--enable-openmp],[use parallel multicore calculation through OpenMP [default=no]])],,
+              [AC_HELP_STRING([--enable-openmp],
+                              [use parallel multicore calculation through OpenMP [default=no]])],,
               [enable_openmp=no])
 
 # Let the user enable/disable the x86 optimizations.
 # Useful when compiling on non-x86 architectures.
 AC_ARG_ENABLE([x86-optimizations],
               [AS_HELP_STRING([--enable-x86-optimizations],
-                              [use MMX or SSE optimization [default=yes]])],[enable_x86_optimizations="${enableval}"],
+                              [use MMX or SSE optimization
+[default=yes]])],[enable_x86_optimizations="${enableval}"],
               [enable_x86_optimizations=yes])
 
-# Let the user enable/disable the x86 optimizations.
-# Useful when compiling on non-x86 architectures.
-AC_ARG_ENABLE([neon-optimizations],
-              [AS_HELP_STRING([--enable-neon-optimizations],
-                              [use ARM NEON optimization [default=yes]])],[enable_neon_optimizations="${enableval}"],
-              [enable_neon_optimizations=yes])
-
-
 # Tell the Makefile.am if the user wants to disable optimizations.
 # Makefile.am will enable them by default if support is available.
 # Note: We check if optimizations are supported a few lines down.
 AM_CONDITIONAL([X86_OPTIMIZATIONS], [test "x$enable_x86_optimizations" = "xyes"])
 
+
 if test "x$enable_integer_samples" = "xyes"; then
         echo "****** Integer sample type enabled ******"
         AC_DEFINE(SOUNDTOUCH_INTEGER_SAMPLES,1,[Use Integer as Sample type])
@@ -116,7 +109,7 @@ else
         echo "****** Float sample type enabled ******"
         AC_DEFINE(SOUNDTOUCH_FLOAT_SAMPLES,1,[Use Float as Sample type])
 fi
-AM_CONDITIONAL([SOUNDTOUCH_FLOAT_SAMPLES], [test "x$enable_integer_samples" != "xyes"])
+
 
 if test "x$enable_openmp" = "xyes"; then
         echo "****** openmp optimizations enabled ******"
@@ -202,52 +195,6 @@ else
         CPPFLAGS="-DSOUNDTOUCH_DISABLE_X86_OPTIMIZATIONS $CPPFLAGS"
 fi
 
-
-if test "x$enable_neon_optimizations" = "xyes" -a "x$ac_cv_header_arm_neon_h" = "xyes"; then
-
-	# Check for ARM NEON support
-	original_saved_CXXFLAGS=$CXXFLAGS
-	have_neon=no
-	CXXFLAGS="-mfpu=neon -march=native $CXXFLAGS"
-
-	# Check if can compile neon code using intrinsics, require GCC >= 4.3 for autovectorization.
-	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
-	#if defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 3))
-	#error "Need GCC >= 4.3 for neon autovectorization"
-	#endif
-	#include <arm_neon.h>
-	int main () {
-		int32x4_t t = {1};
-		return vaddq_s32(t,t)[0] == 2;
-	}]])],[have_neon=yes])
-	CXXFLAGS=$original_saved_CXXFLAGS
-	if test "x$have_neon" = "xyes" ; then
-		echo "****** NEON support enabled ******"
-		CPPFLAGS="-mfpu=neon -march=native -mtune=native $CPPFLAGS"
-		AC_DEFINE(SOUNDTOUCH_USE_NEON,1,[Use ARM NEON extension])
-	fi
-fi
-
-
-AC_CANONICAL_HOST
-HOST_OS=""
-AS_CASE([$host_cpu],
-        [x86_64],
-        [
-            x86_64=true
-            x86=true
-        ],
-        [i?86],
-        [
-            x86=true
-        ])
-
-AM_CONDITIONAL([X86], [test "$x86" = true])
-AM_CONDITIONAL([X86_64], [test "$x86_64" = true])
-
-AC_SUBST([HOST_OS])
-
-
 # Set AM_CXXFLAGS
 AC_SUBST([AM_CXXFLAGS], [$AM_CXXFLAGS])
 
@@ -270,6 +217,8 @@ AM_CONDITIONAL([HAVE_SSE], [test "x$have_sse_intrinsics" = "xyes"])
 dnl ############################################################################
 dnl # Checks for library functions/classes                                     #
 dnl ############################################################################
+AC_FUNC_MALLOC
+AC_TYPE_SIGNAL
 
 dnl make -lm get added to the LIBS
 AC_CHECK_LIB(m, sqrt,,AC_MSG_ERROR([compatible libc math library not found])) 
@@ -302,12 +251,11 @@ AC_CONFIG_FILES([
 	source/Makefile
 		source/SoundTouch/Makefile
 		source/SoundStretch/Makefile
-        source/SoundTouchDLL/Makefile
 	include/Makefile
 ])
 
-AC_CONFIG_FILES([soundtouch.pc
+AC_OUTPUT(
-])
+	soundtouch.pc
-AC_OUTPUT
+)
 
 dnl use 'echo' to put stuff here if you want a message to the builder

include/BPMDetect.h

@@ -196,7 +196,7 @@ namespace soundtouch
         /// - "values" receive array of beat detection strengths
         /// - max_num indicates max.size of "pos" and "values" array.  
         ///
-        /// You can query a suitable array sized by calling this with nullptr in "pos" & "values".
+        /// You can query a suitable array sized by calling this with NULL in "pos" & "values".
         ///
         /// \return number of beats in the arrays.
         int getBeats(float *pos, float *strength, int max_num);

include/FIFOSampleBuffer.h

@@ -91,7 +91,7 @@ public:
                      );
 
     /// destructor
-    ~FIFOSampleBuffer() override;
+    ~FIFOSampleBuffer();
 
     /// Returns a pointer to the beginning of the output samples. 
     /// This function is provided for accessing the output samples directly. 
@@ -100,7 +100,7 @@ public:
     /// When using this function to output samples, also remember to 'remove' the
     /// output samples from the buffer by calling the 
     /// 'receiveSamples(numSamples)' function
-    virtual SAMPLETYPE *ptrBegin() override;
+    virtual SAMPLETYPE *ptrBegin();
 
     /// Returns a pointer to the end of the used part of the sample buffer (i.e. 
     /// where the new samples are to be inserted). This function may be used for 
@@ -121,7 +121,7 @@ public:
     /// the sample buffer.
     virtual void putSamples(const SAMPLETYPE *samples,  ///< Pointer to samples.
                             uint numSamples                         ///< Number of samples to insert.
-                            ) override;
+                            );
 
     /// Adjusts the book-keeping to increase number of samples in the buffer without 
     /// copying any actual samples.
@@ -139,7 +139,7 @@ public:
     /// \return Number of samples returned.
     virtual uint receiveSamples(SAMPLETYPE *output, ///< Buffer where to copy output samples.
                                 uint maxSamples                 ///< How many samples to receive at max.
-                                ) override;
+                                );
 
     /// Adjusts book-keeping so that given number of samples are removed from beginning of the 
     /// sample buffer without copying them anywhere. 
@@ -147,10 +147,10 @@ public:
     /// Used to reduce the number of samples in the buffer when accessing the sample buffer directly
     /// with 'ptrBegin' function.
     virtual uint receiveSamples(uint maxSamples   ///< Remove this many samples from the beginning of pipe.
-                                ) override;
+                                );
 
     /// Returns number of samples currently available.
-    virtual uint numSamples() const override;
+    virtual uint numSamples() const;
 
     /// Sets number of channels, 1 = mono, 2 = stereo.
     void setChannels(int numChannels);
@@ -162,17 +162,14 @@ public:
     }
 
     /// Returns nonzero if there aren't any samples available for outputting.
-    virtual int isEmpty() const override;
+    virtual int isEmpty() const;
 
     /// Clears all the samples.
-    virtual void clear() override;
+    virtual void clear();
 
     /// allow trimming (downwards) amount of samples in pipeline.
     /// Returns adjusted amount of samples
-    uint adjustAmountOfSamples(uint numSamples) override;
+    uint adjustAmountOfSamples(uint numSamples);
-
-    /// Add silence to end of buffer
-    void addSilent(uint nSamples);
 };
 
 }

include/FIFOSamplePipe.h

@@ -88,11 +88,11 @@ public:
     void moveSamples(FIFOSamplePipe &other  ///< Other pipe instance where from the receive the data.
          )
     {
-        const uint oNumSamples = other.numSamples();
+        int oNumSamples = other.numSamples();
 
         putSamples(other.ptrBegin(), oNumSamples);
         other.receiveSamples(oNumSamples);
-    }
+    };
 
     /// Output samples from beginning of the sample buffer. Copies requested samples to 
     /// output buffer and removes them from the sample buffer. If there are less than 
@@ -144,8 +144,8 @@ protected:
     /// Sets output pipe.
     void setOutPipe(FIFOSamplePipe *pOutput)
     {
-        assert(output == nullptr);
+        assert(output == NULL);
-        assert(pOutput != nullptr);
+        assert(pOutput != NULL);
         output = pOutput;
     }
 
@@ -153,7 +153,7 @@ protected:
     /// 'setOutPipe' function.
     FIFOProcessor()
     {
-        output = nullptr;
+        output = NULL;
     }
 
     /// Constructor. Configures output pipe.
@@ -164,7 +164,7 @@ protected:
     }
 
     /// Destructor.
-    virtual ~FIFOProcessor() override
+    virtual ~FIFOProcessor()
     {
     }
 
@@ -175,7 +175,7 @@ protected:
     /// When using this function to output samples, also remember to 'remove' the
     /// output samples from the buffer by calling the 
     /// 'receiveSamples(numSamples)' function
-    virtual SAMPLETYPE *ptrBegin() override
+    virtual SAMPLETYPE *ptrBegin()
     {
         return output->ptrBegin();
     }
@@ -189,7 +189,7 @@ public:
     /// \return Number of samples returned.
     virtual uint receiveSamples(SAMPLETYPE *outBuffer, ///< Buffer where to copy output samples.
                                 uint maxSamples                    ///< How many samples to receive at max.
-                                ) override
+                                )
     {
         return output->receiveSamples(outBuffer, maxSamples);
     }
@@ -200,26 +200,26 @@ public:
     /// Used to reduce the number of samples in the buffer when accessing the sample buffer directly
     /// with 'ptrBegin' function.
     virtual uint receiveSamples(uint maxSamples   ///< Remove this many samples from the beginning of pipe.
-                                ) override
+                                )
     {
         return output->receiveSamples(maxSamples);
     }
 
     /// Returns number of samples currently available.
-    virtual uint numSamples() const override
+    virtual uint numSamples() const
     {
         return output->numSamples();
     }
 
     /// Returns nonzero if there aren't any samples available for outputting.
-    virtual int isEmpty() const override
+    virtual int isEmpty() const
     {
         return output->isEmpty();
     }
 
     /// allow trimming (downwards) amount of samples in pipeline.
     /// Returns adjusted amount of samples
-    virtual uint adjustAmountOfSamples(uint numSamples) override
+    virtual uint adjustAmountOfSamples(uint numSamples)
     {
         return output->adjustAmountOfSamples(numSamples);
     }

include/STTypes.h

@@ -56,9 +56,8 @@ typedef unsigned long   ulong;
 
 namespace soundtouch
 {
-    /// Max allowed number of channels. This is not a hard limit but to have some
+    /// Max allowed number of channels
-    /// maximum value for argument sanity checks -- can be increased if necessary
+    #define SOUNDTOUCH_MAX_CHANNELS     16
-    #define SOUNDTOUCH_MAX_CHANNELS     32
 
     /// Activate these undef's to overrule the possible sampletype 
     /// setting inherited from some other header file:
@@ -122,10 +121,10 @@ namespace soundtouch
 
     #endif
 
-    // If defined, allows the SIMD-optimized routines to skip unevenly aligned
+    // If defined, allows the SIMD-optimized routines to take minor shortcuts 
-    // memory offsets that can cause performance penalty in some SIMD implementations.
+    // for improved performance. Undefine to require faithfully similar SIMD 
-    // Causes slight compromise in sound quality.
+    // calculations as in normal C implementation.
-    // #define SOUNDTOUCH_ALLOW_NONEXACT_SIMD_OPTIMIZATION    1
+    #define SOUNDTOUCH_ALLOW_NONEXACT_SIMD_OPTIMIZATION    1
 
 
     #ifdef SOUNDTOUCH_INTEGER_SAMPLES
@@ -150,9 +149,8 @@ namespace soundtouch
 
         // floating point samples
         typedef float  SAMPLETYPE;
-        // data type for sample accumulation: Use float also here to enable
+        // data type for sample accumulation: Use double to utilize full precision.
-        // efficient autovectorization
+        typedef double LONG_SAMPLETYPE;
-        typedef float LONG_SAMPLETYPE;
 
         #ifdef SOUNDTOUCH_ALLOW_X86_OPTIMIZATIONS
             // Allow SSE optimizations
@@ -161,13 +159,7 @@ namespace soundtouch
 
     #endif  // SOUNDTOUCH_INTEGER_SAMPLES
 
-    #if ((SOUNDTOUCH_ALLOW_SSE) || (__SSE__) || (SOUNDTOUCH_USE_NEON))
+};
-        #if SOUNDTOUCH_ALLOW_NONEXACT_SIMD_OPTIMIZATION
-            #define ST_SIMD_AVOID_UNALIGNED
-        #endif
-    #endif
-
-}
 
 // define ST_NO_EXCEPTION_HANDLING switch to disable throwing std exceptions:
 // #define ST_NO_EXCEPTION_HANDLING    1

include/SoundTouch.h

@@ -72,10 +72,10 @@ namespace soundtouch
 {
 
 /// Soundtouch library version string
-#define SOUNDTOUCH_VERSION          "2.3.3"
+#define SOUNDTOUCH_VERSION          "2.1"
 
 /// SoundTouch library version id
-#define SOUNDTOUCH_VERSION_ID       (20303)
+#define SOUNDTOUCH_VERSION_ID       (20100)
 
 //
 // Available setting IDs for the 'setSetting' & 'get_setting' functions:
@@ -209,7 +209,7 @@ protected :
 
 public:
     SoundTouch();
-    virtual ~SoundTouch() override;
+    virtual ~SoundTouch();
 
     /// Get SoundTouch library version string
     static const char *getVersionString();
@@ -287,7 +287,7 @@ public:
             uint numSamples                         ///< Number of samples in buffer. Notice
                                                     ///< that in case of stereo-sound a single sample
                                                     ///< contains data for both channels.
-            ) override;
+            );
 
     /// Output samples from beginning of the sample buffer. Copies requested samples to 
     /// output buffer and removes them from the sample buffer. If there are less than 
@@ -296,7 +296,7 @@ public:
     /// \return Number of samples returned.
     virtual uint receiveSamples(SAMPLETYPE *output, ///< Buffer where to copy output samples.
         uint maxSamples                 ///< How many samples to receive at max.
-        ) override;
+        );
 
     /// Adjusts book-keeping so that given number of samples are removed from beginning of the 
     /// sample buffer without copying them anywhere. 
@@ -304,11 +304,11 @@ public:
     /// Used to reduce the number of samples in the buffer when accessing the sample buffer directly
     /// with 'ptrBegin' function.
     virtual uint receiveSamples(uint maxSamples   ///< Remove this many samples from the beginning of pipe.
-        ) override;
+        );
 
     /// Clears all the samples in the object's output and internal processing
     /// buffers.
-    virtual void clear() override;
+    virtual void clear();
 
     /// Changes a setting controlling the processing system behaviour. See the
     /// 'SETTING_...' defines for available setting ID's.

include/soundtouch_config.h

@@ -1,3 +0,0 @@
-// autotools configuration step replaces this file with a configured version.
-// this empty file stub is provided to avoid error about missing include file
-// when not using autotools build

include/soundtouch_config.h.in

@@ -3,6 +3,3 @@
 
 /* Use Integer as Sample type */
 #undef SOUNDTOUCH_INTEGER_SAMPLES
-
-/* Use ARM NEON extension */
-#undef SOUNDTOUCH_USE_NEON

make-win.bat

@@ -31,9 +31,8 @@ echo ***************************************************************************
 echo **
 echo ** ERROR: Visual Studio path not set.
 echo **
-echo ** Open "tools"->"Developer Command Line" from Visual Studio IDE, or
+echo ** Run "vsvars32.bat" or "vcvars32.bat" from Visual Studio installation dir,
-echo ** run "vcvars32.bat" from Visual Studio installation dir, e.g.
+echo ** e.g. "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin",
-echo ** "C:\Program Files (x86)\Microsoft Visual Studio xxx\VC\bin",
 echo ** then try again.
 echo **
 echo ****************************************************************************

readme.md

@@ -1,7 +1,5 @@
 # SoundTouch library
 
-## About
-
 SoundTouch is an open-source audio processing library that allows changing the sound tempo, pitch and playback rate parameters independently from each other:
 * Change **tempo** while maintaining the original pitch
 * Change **pitch** while maintaining the original tempo
@@ -9,9 +7,7 @@ SoundTouch is an open-source audio processing library that allows changing the s
 same time
 * Change any combination of tempo/pitch/rate
 
-Visit [SoundTouch website](https://www.surina.net/soundtouch) and see the [README file](https://www.surina.net/soundtouch/readme.html) for more information and audio examples.
+Visit [SoundTouch website](https://www.surina.net/soundtouch) and see the [README file](README.html) for more information and audio examples.
-
-### The latest stable release is 2.3.3
 
 ## Example
 
@@ -21,7 +17,7 @@ Use SoundStretch example app for modifying wav audio files, for example as follo
 soundstretch my_original_file.wav output_file.wav -tempo=+15 -pitch=-3
 ```
 
-See the [README file](http://soundtouch.surina.net/README.html) for more usage examples and instructions how to build SoundTouch + SoundStretch.
+See the [README file](README.html) for more usage examples and instructions how to build SoundTouch + SoundStretch.
 
 Ready [SoundStretch application executables](https://www.surina.net/soundtouch/download.html) are available for download for Windows and Mac OS.
 
@@ -37,18 +33,6 @@ SoundTouch is written in C++ and compiles in virtually any platform:
 
 The source code package includes dynamic library import modules for C#, Java and Pascal/Delphi languages.
 
-## Tarballs
-
-Source code release tarballs:
-* https://www.surina.net/soundtouch/soundtouch-2.3.3.tar.gz
-* https://www.surina.net/soundtouch/soundtouch-2.3.2.tar.gz
-* https://www.surina.net/soundtouch/soundtouch-2.3.1.tar.gz
-* https://www.surina.net/soundtouch/soundtouch-2.3.0.tar.gz
-* https://www.surina.net/soundtouch/soundtouch-2.2.0.tar.gz
-* https://www.surina.net/soundtouch/soundtouch-2.1.2.tar.gz
-* https://www.surina.net/soundtouch/soundtouch-2.1.1.tar.gz
-* https://www.surina.net/soundtouch/soundtouch-2.0.0.tar.gz
-
 ## License
 
 SoundTouch is released under LGPL v2.1:

source/Android-lib/README-SoundTouch-Android.html

@@ -103,7 +103,6 @@ in the <strong>soundtouch-jni.cpp </strong>source code file for more details.</p
 	the Java interface class that loasd & accesses the JNI routines in the natively compiled library.
 	The example Android application uses this class as interface for processing audio files 
 	with SoundTouch.</li>
-        <li><b>Android-lib/build.gradle</b>: Top level build script file for Android Studio 3.1.4+</li>
     </ul>
 <p>
         Feel free to examine and extend the provided cpp/java source code example file pair to 

source/Android-lib/build.gradle

@@ -1,55 +0,0 @@
-// Top-level build file where you can add configuration options common to all sub-projects/modules.
-buildscript {
-    repositories {
-        jcenter()
-        google()
-    }
-    dependencies {
-        classpath 'com.android.tools.build:gradle:3.1.4'
-    }
-}
-
-allprojects {
-    repositories {
-        jcenter()
-        google()
-    }
-}
-
-apply plugin: 'com.android.application'
-
-android {
-    compileSdkVersion 28
-
-    defaultConfig {
-        applicationId "net.surina.soundtouchexample"
-        minSdkVersion 14
-        targetSdkVersion 21
-
-        externalNativeBuild.ndkBuild {
-            arguments "NDK_APPLICATION=jni/Application.mk",
-                    "APP_ALLOW_MISSING_DEPS:=true"
-        }
-    }
-
-    sourceSets {
-        main {
-            manifest.srcFile "./AndroidManifest.xml"
-            java.srcDirs = ["./src"]
-            res.srcDirs = ["res"]
-        }
-    }
-
-    externalNativeBuild {
-        ndkBuild {
-            path 'jni/Android.mk'
-        }
-    }
-
-
-    buildTypes {
-        release {
-            minifyEnabled false
-        }
-    }
-}

source/Android-lib/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +0,0 @@
-#Sat Jan 13 09:12:34 PST 2018
-distributionBase=GRADLE_USER_HOME
-distributionPath=wrapper/dists
-zipStoreBase=GRADLE_USER_HOME
-zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.4.1-all.zip

source/Android-lib/gradlew

@@ -1,172 +0,0 @@
-#!/usr/bin/env sh
-
-##############################################################################
-##
-##  Gradle start up script for UN*X
-##
-##############################################################################
-
-# Attempt to set APP_HOME
-# Resolve links: $0 may be a link
-PRG="$0"
-# Need this for relative symlinks.
-while [ -h "$PRG" ] ; do
-    ls=`ls -ld "$PRG"`
-    link=`expr "$ls" : '.*-> \(.*\)$'`
-    if expr "$link" : '/.*' > /dev/null; then
-        PRG="$link"
-    else
-        PRG=`dirname "$PRG"`"/$link"
-    fi
-done
-SAVED="`pwd`"
-cd "`dirname \"$PRG\"`/" >/dev/null
-APP_HOME="`pwd -P`"
-cd "$SAVED" >/dev/null
-
-APP_NAME="Gradle"
-APP_BASE_NAME=`basename "$0"`
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS=""
-
-# Use the maximum available, or set MAX_FD != -1 to use that value.
-MAX_FD="maximum"
-
-warn () {
-    echo "$*"
-}
-
-die () {
-    echo
-    echo "$*"
-    echo
-    exit 1
-}
-
-# OS specific support (must be 'true' or 'false').
-cygwin=false
-msys=false
-darwin=false
-nonstop=false
-case "`uname`" in
-  CYGWIN* )
-    cygwin=true
-    ;;
-  Darwin* )
-    darwin=true
-    ;;
-  MINGW* )
-    msys=true
-    ;;
-  NONSTOP* )
-    nonstop=true
-    ;;
-esac
-
-CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
-
-# Determine the Java command to use to start the JVM.
-if [ -n "$JAVA_HOME" ] ; then
-    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
-        # IBM's JDK on AIX uses strange locations for the executables
-        JAVACMD="$JAVA_HOME/jre/sh/java"
-    else
-        JAVACMD="$JAVA_HOME/bin/java"
-    fi
-    if [ ! -x "$JAVACMD" ] ; then
-        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
-
-Please set the JAVA_HOME variable in your environment to match the
-location of your Java installation."
-    fi
-else
-    JAVACMD="java"
-    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-
-Please set the JAVA_HOME variable in your environment to match the
-location of your Java installation."
-fi
-
-# Increase the maximum file descriptors if we can.
-if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
-    MAX_FD_LIMIT=`ulimit -H -n`
-    if [ $? -eq 0 ] ; then
-        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
-            MAX_FD="$MAX_FD_LIMIT"
-        fi
-        ulimit -n $MAX_FD
-        if [ $? -ne 0 ] ; then
-            warn "Could not set maximum file descriptor limit: $MAX_FD"
-        fi
-    else
-        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
-    fi
-fi
-
-# For Darwin, add options to specify how the application appears in the dock
-if $darwin; then
-    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
-fi
-
-# For Cygwin, switch paths to Windows format before running java
-if $cygwin ; then
-    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
-    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
-    JAVACMD=`cygpath --unix "$JAVACMD"`
-
-    # We build the pattern for arguments to be converted via cygpath
-    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
-    SEP=""
-    for dir in $ROOTDIRSRAW ; do
-        ROOTDIRS="$ROOTDIRS$SEP$dir"
-        SEP="|"
-    done
-    OURCYGPATTERN="(^($ROOTDIRS))"
-    # Add a user-defined pattern to the cygpath arguments
-    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
-        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
-    fi
-    # Now convert the arguments - kludge to limit ourselves to /bin/sh
-    i=0
-    for arg in "$@" ; do
-        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
-        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
-
-        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
-            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
-        else
-            eval `echo args$i`="\"$arg\""
-        fi
-        i=$((i+1))
-    done
-    case $i in
-        (0) set -- ;;
-        (1) set -- "$args0" ;;
-        (2) set -- "$args0" "$args1" ;;
-        (3) set -- "$args0" "$args1" "$args2" ;;
-        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
-        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
-        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
-        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
-        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
-        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
-    esac
-fi
-
-# Escape application args
-save () {
-    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
-    echo " "
-}
-APP_ARGS=$(save "$@")
-
-# Collect all arguments for the java command, following the shell quoting and substitution rules
-eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
-
-# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
-if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
-  cd "$(dirname "$0")"
-fi
-
-exec "$JAVACMD" "$@"

source/Android-lib/gradlew.bat

@@ -1,84 +0,0 @@
-@if "%DEBUG%" == "" @echo off
-@rem ##########################################################################
-@rem
-@rem  Gradle startup script for Windows
-@rem
-@rem ##########################################################################
-
-@rem Set local scope for the variables with windows NT shell
-if "%OS%"=="Windows_NT" setlocal
-
-set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
-set APP_BASE_NAME=%~n0
-set APP_HOME=%DIRNAME%
-
-@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
-
-@rem Find java.exe
-if defined JAVA_HOME goto findJavaFromJavaHome
-
-set JAVA_EXE=java.exe
-%JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto init
-
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:findJavaFromJavaHome
-set JAVA_HOME=%JAVA_HOME:"=%
-set JAVA_EXE=%JAVA_HOME%/bin/java.exe
-
-if exist "%JAVA_EXE%" goto init
-
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:init
-@rem Get command-line arguments, handling Windows variants
-
-if not "%OS%" == "Windows_NT" goto win9xME_args
-
-:win9xME_args
-@rem Slurp the command line arguments.
-set CMD_LINE_ARGS=
-set _SKIP=2
-
-:win9xME_args_slurp
-if "x%~1" == "x" goto execute
-
-set CMD_LINE_ARGS=%*
-
-:execute
-@rem Setup the command line
-
-set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
-
-@rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
-
-:end
-@rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
-
-:fail
-rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
-rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
-
-:mainEnd
-if "%OS%"=="Windows_NT" endlocal
-
-:omega

source/Android-lib/jni/Android.mk

@@ -1,8 +1,22 @@
+# Copyright (C) 2010 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
 LOCAL_PATH := $(call my-dir)
 
 include $(CLEAR_VARS)
 
-LOCAL_C_INCLUDES += $(LOCAL_PATH)/../../../include $(LOCAL_PATH)/../../SoundStretch
 # *** Remember: Change -O0 into -O2 in add-applications.mk ***
 
 LOCAL_MODULE    := soundtouch
@@ -24,7 +38,7 @@ LOCAL_LDLIBS    += -llog
 
 # Custom Flags: 
 # -fvisibility=hidden : don't export all symbols
-LOCAL_CFLAGS += -fvisibility=hidden -fdata-sections -ffunction-sections -ffast-math
+LOCAL_CFLAGS += -fvisibility=hidden -I ../../../include -fdata-sections -ffunction-sections
 
 # OpenMP mode : enable these flags to enable using OpenMP for parallel computation 
 #LOCAL_CFLAGS += -fopenmp

source/Android-lib/jni/Application.mk

@@ -4,6 +4,6 @@
 
 APP_ABI := all #armeabi-v7a armeabi
 APP_OPTIM := release
-APP_STL := c++_static
+APP_STL := stlport_static
 APP_CPPFLAGS := -fexceptions # -D SOUNDTOUCH_DISABLE_X86_OPTIMIZATIONS
 

source/Android-lib/jni/soundtouch-jni.cpp

@@ -41,12 +41,12 @@ static void _setErrmsg(const char *msg)
 	_errMsg = msg;
 }
 
-#if 0   // apparently following workaround not needed any more with concurrent Android SDKs
+
 #ifdef _OPENMP
 
 #include <pthread.h>
 extern pthread_key_t gomp_tls_key;
-static void * _p_gomp_tls = nullptr;
+static void * _p_gomp_tls = NULL;
 
 /// Function to initialize threading for OpenMP.
 ///
@@ -54,7 +54,7 @@ static void * _p_gomp_tls = nullptr;
 /// called from the Android App main thread because in the main thread the gomp_tls storage is
 /// properly set, however, Android does not properly initialize gomp_tls storage for other threads.
 /// Thus if OpenMP routines are invoked from some other thread than the main thread,
-/// the OpenMP routine will crash the application due to nullptr access on uninitialized storage.
+/// the OpenMP routine will crash the application due to NULL pointer access on uninitialized storage.
 ///
 /// This workaround stores the gomp_tls storage from main thread, and copies to other threads.
 /// In order this to work, the Application main thread needws to call at least "getVersionString"
@@ -63,7 +63,7 @@ static int _init_threading(bool warn)
 {
 	void *ptr = pthread_getspecific(gomp_tls_key);
 	LOGV("JNI thread-specific TLS storage %ld", (long)ptr);
-	if (ptr == nullptr)
+	if (ptr == NULL)
 	{
 		LOGV("JNI set missing TLS storage to %ld", (long)_p_gomp_tls);
 		pthread_setspecific(gomp_tls_key, _p_gomp_tls);
@@ -74,7 +74,7 @@ static int _init_threading(bool warn)
 		_p_gomp_tls = ptr;
 	}
 	// Where critical, show warning if storage still not properly initialized
-	if ((warn) && (_p_gomp_tls == nullptr))
+	if ((warn) && (_p_gomp_tls == NULL))
 	{
 		_setErrmsg("Error - OpenMP threading not properly initialized: Call SoundTouch.getVersionString() from the App main thread!");
 		return -1;
@@ -90,7 +90,6 @@ static int _init_threading(bool warn)
 }
 #endif
 
-#endif
 
 // Processes the sound file
 static void _processFile(SoundTouch *pSoundTouch, const char *inFileName, const char *outFileName)
@@ -163,9 +162,8 @@ extern "C" DLL_PUBLIC jstring Java_net_surina_soundtouch_SoundTouch_getVersionSt
     // Call example SoundTouch routine
     verStr = SoundTouch::getVersionString();
 
-    // gomp_tls storage bug workaround - see comments in _init_threading() function!
+    /// gomp_tls storage bug workaround - see comments in _init_threading() function!
-    // update: apparently this is not needed any more with concurrent Android SDKs
+    _init_threading(false);
-    // _init_threading(false);
 
     int threads = 0;
 	#pragma omp parallel
@@ -234,8 +232,7 @@ extern "C" DLL_PUBLIC int Java_net_surina_soundtouch_SoundTouch_processFile(JNIE
 	LOGV("JNI process file %s", inputFile);
 
     /// gomp_tls storage bug workaround - see comments in _init_threading() function!
-    // update: apparently this is not needed any more with concurrent Android SDKs
+    if (_init_threading(true)) return -1;
-    // if (_init_threading(true)) return -1;
 
 	try
 	{

source/Makefile.am

@@ -17,9 +17,8 @@
 
 include $(top_srcdir)/config/am_include.mk
 
-if SOUNDTOUCH_FLOAT_SAMPLES
-    # build SoundTouchDLL only if float samples used
-    SUBDIRS=SoundTouch SoundStretch SoundTouchDLL
-else
 SUBDIRS=SoundTouch SoundStretch
-endif
+
+# set to something if you want other stuff to be included in the distribution tarball
+#EXTRA_DIST=
+

source/SoundStretch/Makefile.am

@@ -40,11 +40,11 @@ soundstretch_SOURCES=main.cpp RunParameters.cpp WavFile.cpp
 soundstretch_LDADD=../SoundTouch/libSoundTouch.la -lm
 
 ## linker flags. 
-# Linker flag -s disabled to prevent stripping symbols by default
+# OP 2011-7-17 Linker flag -s disabled to prevent stripping symbols by default
 #soundstretch_LDFLAGS=-s
 
 ## additional compiler flags
-soundstretch_CXXFLAGS=$(AM_CXXFLAGS)
+soundstretch_CXXFLAGS=-O3 $(AM_CXXFLAGS)
 
 #clean-local: 
 #	-rm -f additional-files-to-remove-on-make-clean

source/SoundStretch/RunParameters.cpp

@@ -30,15 +30,12 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 #include <string>
-#include <cstdlib>
+#include <stdlib.h>
 
 #include "RunParameters.h"
 
 using namespace std;
 
-namespace soundstretch
-{
-
 // Program usage instructions 
 
 static const char licenseText[] = 
@@ -97,8 +94,9 @@ static int _toLowerCase(int c)
     return c;
 }
 
+
 // Constructor
-RunParameters::RunParameters(int nParams, const CHARTYPE* paramStr[])
+RunParameters::RunParameters(const int nParams, const char * const paramStr[])
 {
     int i;
     int nFirstParam;
@@ -114,17 +112,28 @@ RunParameters::RunParameters(int nParams, const CHARTYPE* paramStr[])
         }
         string msg = whatText;
         msg += usage;
-        throw(msg);
+        ST_THROW_RT_ERROR(msg.c_str());
     }
 
+    inFileName = NULL;
+    outFileName = NULL;
+    tempoDelta = 0;
+    pitchDelta = 0;
+    rateDelta = 0;
+    quick = 0;
+    noAntiAlias = 0;
+    goalBPM = 0;
+    speech = false;
+    detectBPM = false;
+
     // Get input & output file names
-    inFileName = paramStr[1];
+    inFileName = (char*)paramStr[1];
-    outFileName = paramStr[2];
+    outFileName = (char*)paramStr[2];
 
     if (outFileName[0] == '-')
     {
-        // outputfile name was omitted but other parameter switches given instead
+        // no outputfile name was given but parameters
-        outFileName = STRING_CONST("");
+        outFileName = NULL;
         nFirstParam = 2;
     }
     else
@@ -173,33 +182,25 @@ void RunParameters::checkLimits()
     }
 }
 
-// Convert STRING to std::string. Actually needed only if STRING is std::wstring, but conversion penalty is negligible
-std::string convertString(const STRING& str)
-{
-    std::string res;
-    for (auto c : str)
-    {
-        res += (char)c;
-    }
-    return res;
-}
 
 // Unknown switch parameter -- throws an exception with an error message
-void RunParameters::throwIllegalParamExp(const STRING &str) const
+void RunParameters::throwIllegalParamExp(const string &str) const
 {
     string msg = "ERROR : Illegal parameter \"";
-    msg += convertString(str);
+    msg += str;
     msg += "\".\n\n";
     msg += usage;
-    ST_THROW_RT_ERROR(msg);
+    ST_THROW_RT_ERROR(msg.c_str());
 }
 
+
 void RunParameters::throwLicense() const
 {
     ST_THROW_RT_ERROR(licenseText);
 }
 
-double RunParameters::parseSwitchValue(const STRING& str) const
+
+float RunParameters::parseSwitchValue(const string &str) const
 {
     int pos;
 
@@ -211,14 +212,14 @@ double RunParameters::parseSwitchValue(const STRING& str) const
     }
 
     // Read numerical parameter value after '='
-    return stof(str.substr(pos + 1).c_str());
+    return (float)atof(str.substr(pos + 1).c_str());
 }
 
 
 // Interprets a single switch parameter string of format "-switch=xx"
 // Valid switches are "-tempo=xx", "-pitch=xx" and "-rate=xx". Stores
 // switch values into 'params' structure.
-void RunParameters::parseSwitchParam(const STRING& str)
+void RunParameters::parseSwitchParam(const string &str)
 {
     int upS;
 
@@ -288,5 +289,3 @@ void RunParameters::parseSwitchParam(const STRING& str)
             throwIllegalParamExp(str);
     }
 }
-
-}

source/SoundStretch/RunParameters.h

@@ -32,39 +32,34 @@
 #ifndef RUNPARAMETERS_H
 #define RUNPARAMETERS_H
 
-#include <string>
 #include "STTypes.h"
-#include "SS_CharTypes.h"
+#include <string>
-#include "WavFile.h"
 
-namespace soundstretch
+using namespace std;
-{
 
 /// Parses command line parameters into program parameters
 class RunParameters
 {
 private:
-    void throwIllegalParamExp(const STRING& str) const;
+    void throwIllegalParamExp(const string &str) const;
     void throwLicense() const;
-    void parseSwitchParam(const STRING& str);
+    void parseSwitchParam(const string &str);
     void checkLimits();
-    double parseSwitchValue(const STRING& tr) const;
+    float parseSwitchValue(const string &str) const;
 
 public:
-    STRING inFileName;
+    char  *inFileName;
-    STRING outFileName;
+    char  *outFileName;
-    double tempoDelta{ 0 };
+    float tempoDelta;
-    double pitchDelta{ 0 };
+    float pitchDelta;
-    double rateDelta{ 0 };
+    float rateDelta;
-    int   quick{ 0 };
+    int   quick;
-    int   noAntiAlias{ 0 };
+    int   noAntiAlias;
-    double goalBPM{ 0 };
+    float goalBPM;
-    bool  detectBPM{ false };
+    bool  detectBPM;
-    bool  speech{ false };
+    bool  speech;
 
-    RunParameters(int nParams, const CHARTYPE* paramStr[]);
+    RunParameters(const int nParams, const char * const paramStr[]);
 };
 
-}
-
 #endif

source/SoundStretch/SS_CharTypes.h

@@ -1,52 +0,0 @@
-////////////////////////////////////////////////////////////////////////////////
-///
-/// Char type for SoundStretch
-///
-/// Author        : Copyright (c) Olli Parviainen
-/// Author e-mail : oparviai 'at' iki.fi
-/// SoundTouch WWW: http://www.surina.net/soundtouch
-///
-////////////////////////////////////////////////////////////////////////////////
-//
-// License :
-//
-//  SoundTouch audio processing library
-//  Copyright (c) Olli Parviainen
-//
-//  This library is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License, or (at your option) any later version.
-//
-//  This library is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
-//
-//  You should have received a copy of the GNU Lesser General Public
-//  License along with this library; if not, write to the Free Software
-//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-//
-////////////////////////////////////////////////////////////////////////////////
-
-#ifndef SS_CHARTYPE_H
-#define SS_CHARTYPE_H
-
-#include <string>
-
-namespace soundstretch
-{
-#if _WIN32
-    // wide-char types for supporting non-latin file paths in Windows
-    using CHARTYPE = wchar_t;
-    using STRING = std::wstring;
-    #define STRING_CONST(x) (L"" x)
-#else
-    // gnu platform can natively support UTF-8 paths using "char*" set
-    using CHARTYPE = char;
-    using STRING = std::string;
-    #define STRING_CONST(x) (x)
-#endif
-}
-
-#endif //SS_CHARTYPE_H

source/SoundStretch/WavFile.cpp

@@ -42,23 +42,14 @@
 #include <string>
 #include <sstream>
 #include <cstring>
-#include <cassert>
+#include <assert.h>
-#include <climits>
+#include <limits.h>
 
 #include "WavFile.h"
 #include "STTypes.h"
 
 using namespace std;
 
-namespace soundstretch
-{
-
-#if _WIN32
-#define FOPEN(name, mode) _wfopen(name, STRING_CONST(mode))
-#else
-#define FOPEN(name, mode) fopen(name, mode)
-#endif
-
 static const char riffStr[] = "RIFF";
 static const char waveStr[] = "WAVE";
 static const char fmtStr[]  = "fmt ";
@@ -132,7 +123,7 @@ static inline short _swap16(short& wData)
     }
 
     // dummy helper-function
-static inline void _swap16Buffer(short*, int)
+    static inline void _swap16Buffer(short *pData, int numBytes)
     {
         // do nothing
     }
@@ -147,7 +138,7 @@ static inline void _swap16Buffer(short*, int)
 
 WavFileBase::WavFileBase()
 {
-    convBuff = nullptr;
+    convBuff = NULL;
     convBuffSize = 0;
 }
 
@@ -178,13 +169,17 @@ void* WavFileBase::getConvBuffer(int sizeBytes)
 // Class WavInFile
 //
 
-WavInFile::WavInFile(const STRING& fileName)
+WavInFile::WavInFile(const char *fileName)
 {
     // Try to open the file for reading
-    fptr = FOPEN(fileName.c_str(), "rb");
+    fptr = fopen(fileName, "rb");
-    if (fptr == nullptr)
+    if (fptr == NULL) 
     {
-        ST_THROW_RT_ERROR("Error : Unable to open file for reading.");
+        // didn't succeed
+        string msg = "Error : Unable to open file \"";
+        msg += fileName;
+        msg += "\" for reading.";
+        ST_THROW_RT_ERROR(msg.c_str());
     }
 
     init();
@@ -197,7 +192,9 @@ WavInFile::WavInFile(FILE* file)
     fptr = file;
     if (!file) 
     {
-        ST_THROW_RT_ERROR("Error : Unable to access input stream for reading");
+        // didn't succeed
+        string msg = "Error : Unable to access input stream for reading";
+        ST_THROW_RT_ERROR(msg.c_str());
     }
 
     init();
@@ -216,6 +213,7 @@ void WavInFile::init()
     hdrsOk = readWavHeaders();
     if (hdrsOk != 0) 
     {
+        // Something didn't match in the wav file headers 
         ST_THROW_RT_ERROR("Input file is corrupt or not a WAV file");
     }
 
@@ -225,6 +223,7 @@ void WavInFile::init()
         (header.format.byte_per_sample < 1) || (header.format.byte_per_sample > 320) ||
         (header.format.bits_per_sample < 8) || (header.format.bits_per_sample > 32))
     {
+        // Something didn't match in the wav file headers 
         ST_THROW_RT_ERROR("Error: Illegal wav file header format parameters.");
     }
 
@@ -235,7 +234,7 @@ void WavInFile::init()
 WavInFile::~WavInFile()
 {
     if (fptr) fclose(fptr);
-    fptr = nullptr;
+    fptr = NULL;
 }
 
 
@@ -451,7 +450,7 @@ int WavInFile::read(float* buffer, int maxElems)
 int WavInFile::eof() const
 {
     // return true if all data has been read or file eof has reached
-    return ((uint)dataRead == header.data.data_len || feof(fptr));
+    return (dataRead == header.data.data_len || feof(fptr));
 }
 
 
@@ -704,13 +703,17 @@ uint WavInFile::getElapsedMS() const
 // Class WavOutFile
 //
 
-WavOutFile::WavOutFile(const STRING& fileName, int sampleRate, int bits, int channels)
+WavOutFile::WavOutFile(const char *fileName, int sampleRate, int bits, int channels)
 {
     bytesWritten = 0;
-    fptr = FOPEN(fileName.c_str(), "wb");
+    fptr = fopen(fileName, "wb");
-    if (fptr == nullptr)
+    if (fptr == NULL) 
     {
-        ST_THROW_RT_ERROR("Error : Unable to open file for writing.");
+        string msg = "Error : Unable to open file \"";
+        msg += fileName;
+        msg += "\" for writing.";
+        //pmsg = msg.c_str;
+        ST_THROW_RT_ERROR(msg.c_str());
     }
 
     fillInHeader(sampleRate, bits, channels);
@@ -722,9 +725,10 @@ WavOutFile::WavOutFile(FILE* file, int sampleRate, int bits, int channels)
 {
     bytesWritten = 0;
     fptr = file;
-    if (fptr == nullptr)
+    if (fptr == NULL) 
     {
-        ST_THROW_RT_ERROR("Error : Unable to access output file stream.");
+        string msg = "Error : Unable to access output file stream.";
+        ST_THROW_RT_ERROR(msg.c_str());
     }
 
     fillInHeader(sampleRate, bits, channels);
@@ -736,7 +740,7 @@ WavOutFile::~WavOutFile()
 {
     finishHeader();
     if (fptr) fclose(fptr);
-    fptr = nullptr;
+    fptr = NULL;
 }
 
 
@@ -871,7 +875,7 @@ void WavOutFile::write(const short* buffer, int numElems)
 
             // use temp buffer to swap byte order if necessary
             short *pTemp = (short *)getConvBuffer(numElems * sizeof(short));
-        memcpy(pTemp, buffer, (size_t)numElems * 2L);
+            memcpy(pTemp, buffer, numElems * 2);
             _swap16Buffer(pTemp, numElems);
 
             res = (int)fwrite(pTemp, 2, numElems, fptr);
@@ -920,7 +924,7 @@ void WavOutFile::write(const float* buffer, int numElems)
 
     bytesPerSample = header.format.bits_per_sample / 8;
     numBytes = numElems * bytesPerSample;
-    void* temp = getConvBuffer(numBytes + 7);   // round bit up to avoid buffer overrun with 24bit-value assignment
+    short *temp = (short*)getConvBuffer(numBytes);
 
     switch (bytesPerSample)
     {
@@ -980,5 +984,3 @@ void WavOutFile::write(const float* buffer, int numElems)
     }
     bytesWritten += numBytes;
 }
-
-}

source/SoundStretch/WavFile.h

@@ -40,12 +40,7 @@
 #ifndef WAVFILE_H
 #define WAVFILE_H
 
-#include <cstdio>
+#include <stdio.h>
-#include <string>
-#include "SS_CharTypes.h"
-
-namespace soundstretch
-{
 
 #ifndef uint
 typedef unsigned int uint;
@@ -123,6 +118,9 @@ private:
     /// File pointer.
     FILE *fptr;
 
+    /// Position within the audio stream
+    long position;
+
     /// Counter of how many bytes of sample data have been read from the file.
     long dataRead;
 
@@ -150,7 +148,7 @@ private:
 public:
     /// Constructor: Opens the given WAV file. If the file can't be opened,
     /// throws 'runtime_error' exception.
-    WavInFile(const STRING& filename);
+    WavInFile(const char *filename);
 
     WavInFile(FILE *file);
 
@@ -246,7 +244,7 @@ private:
 public:
     /// Constructor: Creates a new WAV file. Throws a 'runtime_error' exception 
     /// if file creation fails.
-    WavOutFile(const STRING& fileName,  ///< Filename
+    WavOutFile(const char *fileName,    ///< Filename
                int sampleRate,          ///< Sample rate (e.g. 44100 etc)
                int bits,                ///< Bits per sample (8 or 16 bits)
                int channels             ///< Number of channels (1=mono, 2=stereo)
@@ -276,6 +274,4 @@ public:
                );
 };
 
- }
-
 #endif

source/SoundStretch/main.cpp

@@ -29,12 +29,10 @@
 //
 ////////////////////////////////////////////////////////////////////////////////
 
-#include <iostream>
-#include <memory>
 #include <stdexcept>
-#include <string>
+#include <stdio.h>
-#include <cstdio>
+#include <string.h>
-#include <ctime>
+#include <time.h>
 #include "RunParameters.h"
 #include "WavFile.h"
 #include "SoundTouch.h"
@@ -43,9 +41,6 @@
 using namespace soundtouch;
 using namespace std;
 
-namespace soundstretch
-{
-
 // Processing chunk size (size chosen to be divisible by 2, 4, 6, 8, 10, 12, 14, 16 channels ...)
 #define BUFF_SIZE           6720
 
@@ -73,67 +68,76 @@ static const char _helloText[] =
     "more information.\n"
     "\n";
 
-static void openFiles(unique_ptr<WavInFile>& inFile, unique_ptr<WavOutFile>& outFile, const RunParameters& params)
+static void openFiles(WavInFile **inFile, WavOutFile **outFile, const RunParameters *params)
 {
-    if (params.inFileName == STRING_CONST("stdin"))
+    int bits, samplerate, channels;
+
+    if (strcmp(params->inFileName, "stdin") == 0)
     {
         // used 'stdin' as input file
         SET_STREAM_TO_BIN_MODE(stdin);
-        inFile = make_unique<WavInFile>(stdin);
+        *inFile = new WavInFile(stdin);
     }
     else
     {
         // open input file...
-        inFile = make_unique<WavInFile>(params.inFileName.c_str());
+        *inFile = new WavInFile(params->inFileName);
     }
 
     // ... open output file with same sound parameters
-    const int bits = (int)inFile->getNumBits();
+    bits = (int)(*inFile)->getNumBits();
-    const int samplerate = (int)inFile->getSampleRate();
+    samplerate = (int)(*inFile)->getSampleRate();
-    const int channels = (int)inFile->getNumChannels();
+    channels = (int)(*inFile)->getNumChannels();
 
-    if (!params.outFileName.empty())
+    if (params->outFileName)
     {
-        if (params.outFileName == STRING_CONST("stdout"))
+        if (strcmp(params->outFileName, "stdout") == 0)
         {
             SET_STREAM_TO_BIN_MODE(stdout);
-            outFile = make_unique<WavOutFile>(stdout, samplerate, bits, channels);
+            *outFile = new WavOutFile(stdout, samplerate, bits, channels);
         }
         else
         {
-            outFile = make_unique<WavOutFile>(params.outFileName.c_str(), samplerate, bits, channels);
+            *outFile = new WavOutFile(params->outFileName, samplerate, bits, channels);
         }
     }
+    else
+    {
+        *outFile = NULL;
+    }
 }
 
 
 // Sets the 'SoundTouch' object up according to input file sound format & 
 // command line parameters
-static void setup(SoundTouch& soundTouch, const WavInFile& inFile, const RunParameters& params)
+static void setup(SoundTouch *pSoundTouch, const WavInFile *inFile, const RunParameters *params)
 {
-    const int sampleRate = (int)inFile.getSampleRate();
+    int sampleRate;
-    const int channels = (int)inFile.getNumChannels();
+    int channels;
-    soundTouch.setSampleRate(sampleRate);
-    soundTouch.setChannels(channels);
 
-    soundTouch.setTempoChange(params.tempoDelta);
+    sampleRate = (int)inFile->getSampleRate();
-    soundTouch.setPitchSemiTones(params.pitchDelta);
+    channels = (int)inFile->getNumChannels();
-    soundTouch.setRateChange(params.rateDelta);
+    pSoundTouch->setSampleRate(sampleRate);
+    pSoundTouch->setChannels(channels);
 
-    soundTouch.setSetting(SETTING_USE_QUICKSEEK, params.quick);
+    pSoundTouch->setTempoChange(params->tempoDelta);
-    soundTouch.setSetting(SETTING_USE_AA_FILTER, !(params.noAntiAlias));
+    pSoundTouch->setPitchSemiTones(params->pitchDelta);
+    pSoundTouch->setRateChange(params->rateDelta);
 
-    if (params.speech)
+    pSoundTouch->setSetting(SETTING_USE_QUICKSEEK, params->quick);
+    pSoundTouch->setSetting(SETTING_USE_AA_FILTER, !(params->noAntiAlias));
+
+    if (params->speech)
     {
         // use settings for speech processing
-        soundTouch.setSetting(SETTING_SEQUENCE_MS, 40);
+        pSoundTouch->setSetting(SETTING_SEQUENCE_MS, 40);
-        soundTouch.setSetting(SETTING_SEEKWINDOW_MS, 15);
+        pSoundTouch->setSetting(SETTING_SEEKWINDOW_MS, 15);
-        soundTouch.setSetting(SETTING_OVERLAP_MS, 8);
+        pSoundTouch->setSetting(SETTING_OVERLAP_MS, 8);
         fprintf(stderr, "Tune processing parameters for speech processing.\n");
     }
 
     // print processing information
-    if (!params.outFileName.empty())
+    if (params->outFileName)
     {
 #ifdef SOUNDTOUCH_INTEGER_SAMPLES
         fprintf(stderr, "Uses 16bit integer sample type in processing.\n\n");
@@ -145,9 +149,9 @@ static void setup(SoundTouch& soundTouch, const WavInFile& inFile, const RunPara
 #endif
         // print processing information only if outFileName given i.e. some processing will happen
         fprintf(stderr, "Processing the file with the following changes:\n");
-        fprintf(stderr, "  tempo change = %+lg %%\n", params.tempoDelta);
+        fprintf(stderr, "  tempo change = %+g %%\n", params->tempoDelta);
-        fprintf(stderr, "  pitch change = %+lg semitones\n", params.pitchDelta);
+        fprintf(stderr, "  pitch change = %+g semitones\n", params->pitchDelta);
-        fprintf(stderr, "  rate change  = %+lg %%\n\n", params.rateDelta);
+        fprintf(stderr, "  rate change  = %+g %%\n\n", params->rateDelta);
         fprintf(stderr, "Working...");
     }
     else
@@ -161,24 +165,30 @@ static void setup(SoundTouch& soundTouch, const WavInFile& inFile, const RunPara
 
 
 // Processes the sound
-static void process(SoundTouch& soundTouch, WavInFile& inFile, WavOutFile& outFile)
+static void process(SoundTouch *pSoundTouch, WavInFile *inFile, WavOutFile *outFile)
 {
-    SAMPLETYPE sampleBuffer[BUFF_SIZE];
     int nSamples;
+    int nChannels;
+    int buffSizeSamples;
+    SAMPLETYPE sampleBuffer[BUFF_SIZE];
 
-    const int nChannels = (int)inFile.getNumChannels();
+    if ((inFile == NULL) || (outFile == NULL)) return;  // nothing to do.
+
+    nChannels = (int)inFile->getNumChannels();
     assert(nChannels > 0);
-    const int buffSizeSamples = BUFF_SIZE / nChannels;
+    buffSizeSamples = BUFF_SIZE / nChannels;
 
     // Process samples read from the input file
-    while (inFile.eof() == 0)
+    while (inFile->eof() == 0)
     {
+        int num;
+
         // Read a chunk of samples from the input file
-        const int num = inFile.read(sampleBuffer, BUFF_SIZE);
+        num = inFile->read(sampleBuffer, BUFF_SIZE);
-        int nSamples = num / (int)inFile.getNumChannels();
+        nSamples = num / (int)inFile->getNumChannels();
 
         // Feed the samples into SoundTouch processor
-        soundTouch.putSamples(sampleBuffer, nSamples);
+        pSoundTouch->putSamples(sampleBuffer, nSamples);
 
         // Read ready samples from SoundTouch processor & write them output file.
         // NOTES:
@@ -190,57 +200,61 @@ static void process(SoundTouch& soundTouch, WavInFile& inFile, WavOutFile& outFi
         //   outputs samples.
         do 
         {
-            nSamples = soundTouch.receiveSamples(sampleBuffer, buffSizeSamples);
+            nSamples = pSoundTouch->receiveSamples(sampleBuffer, buffSizeSamples);
-            outFile.write(sampleBuffer, nSamples * nChannels);
+            outFile->write(sampleBuffer, nSamples * nChannels);
         } while (nSamples != 0);
     }
 
     // Now the input file is processed, yet 'flush' few last samples that are
     // hiding in the SoundTouch's internal processing pipeline.
-    soundTouch.flush();
+    pSoundTouch->flush();
     do 
     {
-        nSamples = soundTouch.receiveSamples(sampleBuffer, buffSizeSamples);
+        nSamples = pSoundTouch->receiveSamples(sampleBuffer, buffSizeSamples);
-        outFile.write(sampleBuffer, nSamples * nChannels);
+        outFile->write(sampleBuffer, nSamples * nChannels);
     } while (nSamples != 0);
 }
 
 
 // Detect BPM rate of inFile and adjust tempo setting accordingly if necessary
-static void detectBPM(WavInFile& inFile, RunParameters& params)
+static void detectBPM(WavInFile *inFile, RunParameters *params)
 {
-    BPMDetect bpm(inFile.getNumChannels(), inFile.getSampleRate());
+    float bpmValue;
+    int nChannels;
+    BPMDetect bpm(inFile->getNumChannels(), inFile->getSampleRate());
     SAMPLETYPE sampleBuffer[BUFF_SIZE];
 
     // detect bpm rate
     fprintf(stderr, "Detecting BPM rate...");
     fflush(stderr);
 
-    const int nChannels = (int)inFile.getNumChannels();
+    nChannels = (int)inFile->getNumChannels();
-    int readSize = BUFF_SIZE - BUFF_SIZE % nChannels;   // round read size down to multiple of num.channels
+    assert(BUFF_SIZE % nChannels == 0);
 
     // Process the 'inFile' in small blocks, repeat until whole file has 
     // been processed
-    while (inFile.eof() == 0)
+    while (inFile->eof() == 0)
     {
+        int num, samples;
+
         // Read sample data from input file
-        const int num = inFile.read(sampleBuffer, readSize);
+        num = inFile->read(sampleBuffer, BUFF_SIZE);
 
         // Enter the new samples to the bpm analyzer class
-        const int samples = num / nChannels;
+        samples = num / nChannels;
         bpm.inputSamples(sampleBuffer, samples);
     }
 
     // Now the whole song data has been analyzed. Read the resulting bpm.
-    const float bpmValue = bpm.getBpm();
+    bpmValue = bpm.getBpm();
     fprintf(stderr, "Done!\n");
 
     // rewind the file after bpm detection
-    inFile.rewind();
+    inFile->rewind();
 
     if (bpmValue > 0)
     {
-        fprintf(stderr, "Detected BPM rate %.1lf\n\n", bpmValue);
+        fprintf(stderr, "Detected BPM rate %.1f\n\n", bpmValue);
     }
     else
     {
@@ -248,74 +262,61 @@ static void detectBPM(WavInFile& inFile, RunParameters& params)
         return;
     }
 
-    if (params.goalBPM > 0)
+    if (params->goalBPM > 0)
     {
         // adjust tempo to given bpm
-        params.tempoDelta = (params.goalBPM / bpmValue - 1.0f) * 100.0f;
+        params->tempoDelta = (params->goalBPM / bpmValue - 1.0f) * 100.0f;
-        fprintf(stderr, "The file will be converted to %.1lf BPM\n\n", params.goalBPM);
+        fprintf(stderr, "The file will be converted to %.1f BPM\n\n", params->goalBPM);
     }
 }
 
-void printHelloText()
-{
-    SoundTouch soundTouch;
-    fprintf(stderr, _helloText, soundTouch.getVersionString());
-}
 
-void ss_main(RunParameters& params)
+int main(const int nParams, const char * const paramStr[])
 {
-    unique_ptr<WavInFile> inFile;
+    WavInFile *inFile;
-    unique_ptr<WavOutFile> outFile;
+    WavOutFile *outFile;
+    RunParameters *params;
     SoundTouch soundTouch;
 
+    fprintf(stderr, _helloText, SoundTouch::getVersionString());
+
+    try 
+    {
+        // Parse command line parameters
+        params = new RunParameters(nParams, paramStr);
+
         // Open input & output files
-    openFiles(inFile, outFile, params);
+        openFiles(&inFile, &outFile, params);
 
-    if (params.detectBPM == true)
+        if (params->detectBPM == true)
         {
             // detect sound BPM (and adjust processing parameters
             //  accordingly if necessary)
-        detectBPM(*inFile, params);
+            detectBPM(inFile, params);
         }
 
         // Setup the 'SoundTouch' object for processing the sound
-    setup(soundTouch, *inFile, params);
+        setup(&soundTouch, inFile, params);
 
         // clock_t cs = clock();    // for benchmarking processing duration
         // Process the sound
-    if (inFile && outFile)
+        process(&soundTouch, inFile, outFile);
-    {
-        process(soundTouch, *inFile, *outFile);
-    }
         // clock_t ce = clock();    // for benchmarking processing duration
         // printf("duration: %lf\n", (double)(ce-cs)/CLOCKS_PER_SEC);
 
+        // Close WAV file handles & dispose of the objects
+        delete inFile;
+        delete outFile;
+        delete params;
+
         fprintf(stderr, "Done!\n");
     } 
-
-}
-
-#if _WIN32
-int wmain(int argc, const wchar_t* args[])
-#else
-int main(int argc, const char* args[])
-#endif
-{
-    try
-    {
-        soundstretch::printHelloText();
-        soundstretch::RunParameters params(argc, args);
-        soundstretch::ss_main(params);
-    }
     catch (const runtime_error &e) 
     {
+        // An exception occurred during processing, display an error message
         fprintf(stderr, "%s\n", e.what());
         return -1;
     }
-    catch (const string& e)
+
-    {
-        fprintf(stderr, "%s\n", e.c_str());
-        return -1;
-    }
     return 0;
 }

source/SoundStretch/soundstretch.vcxproj

@@ -21,32 +21,32 @@
   <PropertyGroup Label="Globals">
     <ProjectGuid>{5AACDFFA-D491-44B8-A332-DA7ACCAAF2AF}</ProjectGuid>
     <RootNamespace>soundstretch</RootNamespace>
-    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
     <UseOfMfc>false</UseOfMfc>
-    <CharacterSet>Unicode</CharacterSet>
+    <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
     <UseOfMfc>false</UseOfMfc>
-    <CharacterSet>Unicode</CharacterSet>
+    <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
     <UseOfMfc>false</UseOfMfc>
-    <CharacterSet>Unicode</CharacterSet>
+    <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
     <UseOfMfc>false</UseOfMfc>
-    <CharacterSet>Unicode</CharacterSet>
+    <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
@@ -114,10 +114,9 @@
       <BrowseInformation>true</BrowseInformation>
       <WarningLevel>Level3</WarningLevel>
       <SuppressStartupBanner>true</SuppressStartupBanner>
-      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
       <CompileAs>Default</CompileAs>
       <EnableEnhancedInstructionSet>StreamingSIMDExtensions2</EnableEnhancedInstructionSet>
-      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <ResourceCompile>
       <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
@@ -134,7 +133,10 @@
       <GenerateMapFile>true</GenerateMapFile>
       <MapFileName>$(OutDir)$(TargetName).map</MapFileName>
       <SubSystem>Console</SubSystem>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
       <DataExecutionPrevention />
+      <TargetMachine>MachineX86</TargetMachine>
+      <ImageHasSafeExceptionHandlers>false</ImageHasSafeExceptionHandlers>
     </Link>
     <PostBuildEvent>
       <Command>if not exist ..\..\bin mkdir ..\..\bin
@@ -165,7 +167,6 @@ copy $(OutDir)$(TargetName)$(TargetExt) ..\..\bin\</Command>
       <DebugInformationFormat />
       <CompileAs>Default</CompileAs>
       <EnableEnhancedInstructionSet>StreamingSIMDExtensions2</EnableEnhancedInstructionSet>
-      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <ResourceCompile>
       <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
@@ -180,7 +181,9 @@ copy $(OutDir)$(TargetName)$(TargetExt) ..\..\bin\</Command>
       <GenerateMapFile>true</GenerateMapFile>
       <MapFileName>$(OutDir)$(TargetName).map</MapFileName>
       <SubSystem>Console</SubSystem>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
       <DataExecutionPrevention />
+      <TargetMachine>MachineX86</TargetMachine>
     </Link>
     <PostBuildEvent>
       <Command>if not exist ..\..\bin mkdir ..\..\bin
@@ -212,7 +215,6 @@ copy $(OutDir)$(TargetName)$(TargetExt) ..\..\bin\</Command>
       <CompileAs>Default</CompileAs>
       <EnableEnhancedInstructionSet>
       </EnableEnhancedInstructionSet>
-      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <ResourceCompile>
       <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
@@ -229,7 +231,9 @@ copy $(OutDir)$(TargetName)$(TargetExt) ..\..\bin\</Command>
       <GenerateMapFile>true</GenerateMapFile>
       <MapFileName>$(OutDir)$(TargetName).map</MapFileName>
       <SubSystem>Console</SubSystem>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
       <DataExecutionPrevention />
+      <TargetMachine>MachineX64</TargetMachine>
     </Link>
     <PostBuildEvent>
       <Command>if not exist ..\..\bin mkdir ..\..\bin
@@ -262,7 +266,6 @@ copy $(OutDir)$(TargetName)$(TargetExt) ..\..\bin\</Command>
       <CompileAs>Default</CompileAs>
       <EnableEnhancedInstructionSet>
       </EnableEnhancedInstructionSet>
-      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <ResourceCompile>
       <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
@@ -277,7 +280,9 @@ copy $(OutDir)$(TargetName)$(TargetExt) ..\..\bin\</Command>
       <GenerateMapFile>true</GenerateMapFile>
       <MapFileName>$(OutDir)$(TargetName).map</MapFileName>
       <SubSystem>Console</SubSystem>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
       <DataExecutionPrevention />
+      <TargetMachine>MachineX64</TargetMachine>
     </Link>
     <PostBuildEvent>
       <Command>if not exist ..\..\bin mkdir ..\..\bin
@@ -318,7 +323,6 @@ copy $(OutDir)$(TargetName)$(TargetExt) ..\..\bin\</Command>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="RunParameters.h" />
-    <ClInclude Include="SS_CharTypes.h" />
     <ClInclude Include="WavFile.h" />
   </ItemGroup>
   <ItemGroup>

source/SoundTouch/AAFilter.cpp

@@ -54,7 +54,7 @@ using namespace soundtouch;
     static void _DEBUG_SAVE_AAFIR_COEFFS(SAMPLETYPE *coeffs, int len)
     {
         FILE *fptr = fopen("aa_filter_coeffs.txt", "wt");
-        if (fptr == nullptr) return;
+        if (fptr == NULL) return;
 
         for (int i = 0; i < len; i ++)
         {

source/SoundTouch/BPMDetect.cpp

@@ -186,10 +186,8 @@ BPMDetect::BPMDetect(int numChannels, int aSampleRate) :
 
     // choose decimation factor so that result is approx. 1000 Hz
     decimateBy = sampleRate / TARGET_SRATE;
-    if ((decimateBy <= 0) || (decimateBy * DECIMATED_BLOCK_SIZE < INPUT_BLOCK_SIZE))
+    assert(decimateBy > 0);
-    {
+    assert(INPUT_BLOCK_SIZE < decimateBy * DECIMATED_BLOCK_SIZE);
-        ST_THROW_RT_ERROR("Too small samplerate");
-    }
 
     // Calculate window length & starting item according to desired min & max bpms
     windowLen = (60 * sampleRate) / (decimateBy * MIN_BPM);
@@ -301,7 +299,7 @@ void BPMDetect::updateXCorr(int process_samples)
     pBuffer = buffer->ptrBegin();
 
     // calculate decay factor for xcorr filtering
-    float xcorr_decay = (float)pow(0.5, process_samples / (XCORR_DECAY_TIME_CONSTANT * TARGET_SRATE));
+    float xcorr_decay = (float)pow(0.5, 1.0 / (XCORR_DECAY_TIME_CONSTANT * TARGET_SRATE / process_samples));
 
     // prescale pbuffer
     float tmp[XCORR_UPDATE_SEQUENCE];
@@ -313,7 +311,7 @@ void BPMDetect::updateXCorr(int process_samples)
     #pragma omp parallel for
     for (offs = windowStart; offs < windowLen; offs ++) 
     {
-        float sum;
+        double sum;
         int i;
 
         sum = 0;
@@ -341,6 +339,7 @@ void BPMDetect::updateBeatPos(int process_samples)
     //    static double thr = 0.0003;
     double posScale = (double)this->decimateBy / (double)this->sampleRate;
     int resetDur = (int)(0.12 / posScale + 0.5);
+    double corrScale = 1.0 / (double)(windowLen - windowStart);
 
     // prescale pbuffer
     float tmp[XCORR_UPDATE_SEQUENCE / 2];
@@ -352,7 +351,7 @@ void BPMDetect::updateBeatPos(int process_samples)
     #pragma omp parallel for
     for (int offs = windowStart; offs < windowLen; offs++)
     {
-        float sum = 0;
+        double sum = 0;
         for (int i = 0; i < process_samples; i++)
         {
             sum += tmp[i] * pBuffer[offs + i];
@@ -376,6 +375,8 @@ void BPMDetect::updateBeatPos(int process_samples)
     // detect beats
     for (int i = 0; i < skipstep; i++)
     {
+        LONG_SAMPLETYPE max = 0;
+
         float sum = beatcorr_ringbuff[beatcorr_ringbuffpos];
         sum -= beat_lpf.update(sum);
 
@@ -554,13 +555,13 @@ float BPMDetect::getBpm()
 /// - "values" receive array of beat detection strengths
 /// - max_num indicates max.size of "pos" and "values" array.  
 ///
-/// You can query a suitable array sized by calling this with nullptr in "pos" & "values".
+/// You can query a suitable array sized by calling this with NULL in "pos" & "values".
 ///
 /// \return number of beats in the arrays.
 int BPMDetect::getBeats(float *pos, float *values, int max_num)
 {
-    int num = (int)beats.size();
+    int num = beats.size();
-    if ((!pos) || (!values)) return num;    // pos or values nullptr, return just size
+    if ((!pos) || (!values)) return num;    // pos or values NULL, return just size
 
     for (int i = 0; (i < num) && (i < max_num); i++)
     {

source/SoundTouch/FIFOSampleBuffer.cpp

@@ -50,8 +50,8 @@ FIFOSampleBuffer::FIFOSampleBuffer(int numChannels)
 {
     assert(numChannels > 0);
     sizeInBytes = 0; // reasonable initial value
-    buffer = nullptr;
+    buffer = NULL;
-    bufferUnaligned = nullptr;
+    bufferUnaligned = NULL;
     samplesInBuffer = 0;
     bufferPos = 0;
     channels = (uint)numChannels;
@@ -63,8 +63,8 @@ FIFOSampleBuffer::FIFOSampleBuffer(int numChannels)
 FIFOSampleBuffer::~FIFOSampleBuffer()
 {
     delete[] bufferUnaligned;
-    bufferUnaligned = nullptr;
+    bufferUnaligned = NULL;
-    buffer = nullptr;
+    buffer = NULL;
 }
 
 
@@ -166,7 +166,7 @@ void FIFOSampleBuffer::ensureCapacity(uint capacityRequirement)
         sizeInBytes = (capacityRequirement * channels * sizeof(SAMPLETYPE) + 4095) & (uint)-4096;
         assert(sizeInBytes % 2 == 0);
         tempUnaligned = new SAMPLETYPE[sizeInBytes / sizeof(SAMPLETYPE) + 16 / sizeof(SAMPLETYPE)];
-        if (tempUnaligned == nullptr)
+        if (tempUnaligned == NULL)
         {
             ST_THROW_RT_ERROR("Couldn't allocate memory!\n");
         }
@@ -265,11 +265,3 @@ uint FIFOSampleBuffer::adjustAmountOfSamples(uint numSamples)
     }
     return samplesInBuffer;
 }
-
-
-/// Add silence to end of buffer
-void FIFOSampleBuffer::addSilent(uint nSamples)
-{
-    memset(ptrEnd(nSamples), 0, sizeof(SAMPLETYPE) * nSamples * channels);
-    samplesInBuffer += nSamples;
-}

source/SoundTouch/FIRFilter.cpp

@@ -56,17 +56,16 @@ using namespace soundtouch;
 FIRFilter::FIRFilter()
 {
     resultDivFactor = 0;
+    resultDivider = 0;
     length = 0;
     lengthDiv8 = 0;
-    filterCoeffs = nullptr;
+    filterCoeffs = NULL;
-    filterCoeffsStereo = nullptr;
 }
 
 
 FIRFilter::~FIRFilter()
 {
     delete[] filterCoeffs;
-    delete[] filterCoeffsStereo;
 }
 
 
@@ -74,27 +73,40 @@ FIRFilter::~FIRFilter()
 uint FIRFilter::evaluateFilterStereo(SAMPLETYPE *dest, const SAMPLETYPE *src, uint numSamples) const
 {
     int j, end;
-    // hint compiler autovectorization that loop length is divisible by 8
+#ifdef SOUNDTOUCH_FLOAT_SAMPLES
-    uint ilength = length & -8;
+    // when using floating point samples, use a scaler instead of a divider
+    // because division is much slower operation than multiplying.
+    double dScaler = 1.0 / (double)resultDivider;
+#endif
 
-    assert((length != 0) && (length == ilength) && (src != nullptr) && (dest != nullptr) && (filterCoeffs != nullptr));
+    assert(length != 0);
-    assert(numSamples > ilength);
+    assert(src != NULL);
+    assert(dest != NULL);
+    assert(filterCoeffs != NULL);
 
-    end = 2 * (numSamples - ilength);
+    end = 2 * (numSamples - length);
 
     #pragma omp parallel for
     for (j = 0; j < end; j += 2) 
     {
         const SAMPLETYPE *ptr;
         LONG_SAMPLETYPE suml, sumr;
+        uint i;
 
         suml = sumr = 0;
         ptr = src + j;
 
-        for (uint i = 0; i < ilength; i ++)
+        for (i = 0; i < length; i += 4) 
         {
-            suml += ptr[2 * i] * filterCoeffsStereo[2 * i];
+            // loop is unrolled by factor of 4 here for efficiency
-            sumr += ptr[2 * i + 1] * filterCoeffsStereo[2 * i + 1];
+            suml += ptr[2 * i + 0] * filterCoeffs[i + 0] +
+                    ptr[2 * i + 2] * filterCoeffs[i + 1] +
+                    ptr[2 * i + 4] * filterCoeffs[i + 2] +
+                    ptr[2 * i + 6] * filterCoeffs[i + 3];
+            sumr += ptr[2 * i + 1] * filterCoeffs[i + 0] +
+                    ptr[2 * i + 3] * filterCoeffs[i + 1] +
+                    ptr[2 * i + 5] * filterCoeffs[i + 2] +
+                    ptr[2 * i + 7] * filterCoeffs[i + 3];
         }
 
 #ifdef SOUNDTOUCH_INTEGER_SAMPLES
@@ -104,11 +116,14 @@ uint FIRFilter::evaluateFilterStereo(SAMPLETYPE *dest, const SAMPLETYPE *src, ui
         suml = (suml < -32768) ? -32768 : (suml > 32767) ? 32767 : suml;
         // saturate to 16 bit integer limits
         sumr = (sumr < -32768) ? -32768 : (sumr > 32767) ? 32767 : sumr;
+#else
+        suml *= dScaler;
+        sumr *= dScaler;
 #endif // SOUNDTOUCH_INTEGER_SAMPLES
         dest[j] = (SAMPLETYPE)suml;
         dest[j + 1] = (SAMPLETYPE)sumr;
     }
-    return numSamples - ilength;
+    return numSamples - length;
 }
 
 
@@ -116,29 +131,37 @@ uint FIRFilter::evaluateFilterStereo(SAMPLETYPE *dest, const SAMPLETYPE *src, ui
 uint FIRFilter::evaluateFilterMono(SAMPLETYPE *dest, const SAMPLETYPE *src, uint numSamples) const
 {
     int j, end;
+#ifdef SOUNDTOUCH_FLOAT_SAMPLES
+    // when using floating point samples, use a scaler instead of a divider
+    // because division is much slower operation than multiplying.
+    double dScaler = 1.0 / (double)resultDivider;
+#endif
 
-    // hint compiler autovectorization that loop length is divisible by 8
+    assert(length != 0);
-    int ilength = length & -8;
 
-    assert(ilength != 0);
+    end = numSamples - length;
-
-    end = numSamples - ilength;
     #pragma omp parallel for
     for (j = 0; j < end; j ++) 
     {
         const SAMPLETYPE *pSrc = src + j;
         LONG_SAMPLETYPE sum;
-        int i;
+        uint i;
 
         sum = 0;
-        for (i = 0; i < ilength; i ++)
+        for (i = 0; i < length; i += 4) 
         {
-            sum += pSrc[i] * filterCoeffs[i];
+            // loop is unrolled by factor of 4 here for efficiency
+            sum += pSrc[i + 0] * filterCoeffs[i + 0] + 
+                   pSrc[i + 1] * filterCoeffs[i + 1] + 
+                   pSrc[i + 2] * filterCoeffs[i + 2] + 
+                   pSrc[i + 3] * filterCoeffs[i + 3];
         }
 #ifdef SOUNDTOUCH_INTEGER_SAMPLES
         sum >>= resultDivFactor;
         // saturate to 16 bit integer limits
         sum = (sum < -32768) ? -32768 : (sum > 32767) ? 32767 : sum;
+#else
+        sum *= dScaler;
 #endif // SOUNDTOUCH_INTEGER_SAMPLES
         dest[j] = (SAMPLETYPE)sum;
     }
@@ -150,24 +173,26 @@ uint FIRFilter::evaluateFilterMulti(SAMPLETYPE *dest, const SAMPLETYPE *src, uin
 {
     int j, end;
 
+#ifdef SOUNDTOUCH_FLOAT_SAMPLES
+    // when using floating point samples, use a scaler instead of a divider
+    // because division is much slower operation than multiplying.
+    double dScaler = 1.0 / (double)resultDivider;
+#endif
+
     assert(length != 0);
-    assert(src != nullptr);
+    assert(src != NULL);
-    assert(dest != nullptr);
+    assert(dest != NULL);
-    assert(filterCoeffs != nullptr);
+    assert(filterCoeffs != NULL);
-    assert(numChannels <= SOUNDTOUCH_MAX_CHANNELS);
+    assert(numChannels < 16);
 
-    // hint compiler autovectorization that loop length is divisible by 8
+    end = numChannels * (numSamples - length);
-    int ilength = length & -8;
-
-    end = numChannels * (numSamples - ilength);
 
     #pragma omp parallel for
     for (j = 0; j < end; j += numChannels)
     {
         const SAMPLETYPE *ptr;
         LONG_SAMPLETYPE sums[16];
-        uint c;
+        uint c, i;
-        int i;
 
         for (c = 0; c < numChannels; c ++)
         {
@@ -176,7 +201,7 @@ uint FIRFilter::evaluateFilterMulti(SAMPLETYPE *dest, const SAMPLETYPE *src, uin
 
         ptr = src + j;
 
-        for (i = 0; i < ilength; i ++)
+        for (i = 0; i < length; i ++)
         {
             SAMPLETYPE coef=filterCoeffs[i];
             for (c = 0; c < numChannels; c ++)
@@ -190,11 +215,13 @@ uint FIRFilter::evaluateFilterMulti(SAMPLETYPE *dest, const SAMPLETYPE *src, uin
         {
 #ifdef SOUNDTOUCH_INTEGER_SAMPLES
             sums[c] >>= resultDivFactor;
+#else
+            sums[c] *= dScaler;
 #endif // SOUNDTOUCH_INTEGER_SAMPLES
             dest[j+c] = (SAMPLETYPE)sums[c];
         }
     }
-    return numSamples - ilength;
+    return numSamples - length;
 }
 
 
@@ -211,27 +238,11 @@ void FIRFilter::setCoefficients(const SAMPLETYPE *coeffs, uint newLength, uint u
     assert(length == newLength);
 
     resultDivFactor = uResultDivFactor;
+    resultDivider = (SAMPLETYPE)::pow(2.0, (int)resultDivFactor);
 
     delete[] filterCoeffs;
     filterCoeffs = new SAMPLETYPE[length];
-    delete[] filterCoeffsStereo;
+    memcpy(filterCoeffs, coeffs, length * sizeof(SAMPLETYPE));
-    filterCoeffsStereo = new SAMPLETYPE[length*2];
-
-#ifdef SOUNDTOUCH_FLOAT_SAMPLES
-    // scale coefficients already here if using floating samples
-    const double scale = ::pow(0.5, (int)resultDivFactor);;
-#else
-    const short scale = 1;
-#endif
-
-    for (uint i = 0; i < length; i ++)
-    {
-        filterCoeffs[i] = (SAMPLETYPE)(coeffs[i] * scale);
-        // create also stereo set of filter coefficients: this allows compiler
-        // to autovectorize filter evaluation much more efficiently
-        filterCoeffsStereo[2 * i] = (SAMPLETYPE)(coeffs[i] * scale);
-        filterCoeffsStereo[2 * i + 1] = (SAMPLETYPE)(coeffs[i] * scale);
-    }
 }
 
 
@@ -272,7 +283,7 @@ uint FIRFilter::evaluate(SAMPLETYPE *dest, const SAMPLETYPE *src, uint numSample
 
 // Operator 'new' is overloaded so that it automatically creates a suitable instance 
 // depending on if we've a MMX-capable CPU available or not.
-void * FIRFilter::operator new(size_t)
+void * FIRFilter::operator new(size_t s)
 {
     // Notice! don't use "new FIRFilter" directly, use "newInstance" to create a new instance instead!
     ST_THROW_RT_ERROR("Error in FIRFilter::new: Don't use 'new FIRFilter', use 'newInstance' member instead!");
@@ -285,7 +296,6 @@ FIRFilter * FIRFilter::newInstance()
     uint uExtensions;
 
     uExtensions = detectCPUextensions();
-    (void)uExtensions;
 
     // Check if MMX/SSE instruction set extensions supported by CPU
 

source/SoundTouch/FIRFilter.h

@@ -52,9 +52,11 @@ protected:
     // Result divider factor in 2^k format
     uint resultDivFactor;
 
+    // Result divider value.
+    SAMPLETYPE resultDivider;
+
     // Memory for filter coefficients
     SAMPLETYPE *filterCoeffs;
-    SAMPLETYPE *filterCoeffsStereo;
 
     virtual uint evaluateFilterStereo(SAMPLETYPE *dest, 
                                       const SAMPLETYPE *src, 
@@ -103,12 +105,12 @@ public:
         short *filterCoeffsUnalign;
         short *filterCoeffsAlign;
 
-        virtual uint evaluateFilterStereo(short *dest, const short *src, uint numSamples) const override;
+        virtual uint evaluateFilterStereo(short *dest, const short *src, uint numSamples) const;
     public:
         FIRFilterMMX();
         ~FIRFilterMMX();
 
-        virtual void setCoefficients(const short *coeffs, uint newLength, uint uResultDivFactor) override;
+        virtual void setCoefficients(const short *coeffs, uint newLength, uint uResultDivFactor);
     };
 
 #endif // SOUNDTOUCH_ALLOW_MMX
@@ -122,12 +124,12 @@ public:
         float *filterCoeffsUnalign;
         float *filterCoeffsAlign;
 
-        virtual uint evaluateFilterStereo(float *dest, const float *src, uint numSamples) const override;
+        virtual uint evaluateFilterStereo(float *dest, const float *src, uint numSamples) const;
     public:
         FIRFilterSSE();
         ~FIRFilterSSE();
 
-        virtual void setCoefficients(const float *coeffs, uint newLength, uint uResultDivFactor) override;
+        virtual void setCoefficients(const float *coeffs, uint newLength, uint uResultDivFactor);
     };
 
 #endif // SOUNDTOUCH_ALLOW_SSE

source/SoundTouch/InterpolateCubic.h

@@ -41,27 +41,21 @@ namespace soundtouch
 class InterpolateCubic : public TransposerBase
 {
 protected:
+    virtual void resetRegisters();
     virtual int transposeMono(SAMPLETYPE *dest, 
                         const SAMPLETYPE *src, 
-                        int &srcSamples) override;
+                        int &srcSamples);
     virtual int transposeStereo(SAMPLETYPE *dest, 
                         const SAMPLETYPE *src, 
-                        int &srcSamples) override;
+                        int &srcSamples);
     virtual int transposeMulti(SAMPLETYPE *dest, 
                         const SAMPLETYPE *src, 
-                        int &srcSamples) override;
+                        int &srcSamples);
 
     double fract;
 
 public:
     InterpolateCubic();
-
-    virtual void resetRegisters() override;
-
-    virtual int getLatency() const override
-    {
-        return 1;
-    }
 };
 
 }

source/SoundTouch/InterpolateLinear.cpp

@@ -142,7 +142,7 @@ int InterpolateLinearInteger::transposeMulti(SAMPLETYPE *dest, const SAMPLETYPE
         LONG_SAMPLETYPE temp, vol1;
     
         assert(iFract < SCALE);
-        vol1 = (LONG_SAMPLETYPE)(SCALE - iFract);
+        vol1 = (SCALE - iFract);
         for (int c = 0; c < numChannels; c ++)
         {
             temp = vol1 * src[c] + iFract * src[c + numChannels];

source/SoundTouch/InterpolateLinear.h

@@ -45,26 +45,21 @@ protected:
     int iFract;
     int iRate;
 
+    virtual void resetRegisters();
+
     virtual int transposeMono(SAMPLETYPE *dest, 
                        const SAMPLETYPE *src, 
-                       int &srcSamples) override;
+                       int &srcSamples);
     virtual int transposeStereo(SAMPLETYPE *dest, 
                          const SAMPLETYPE *src, 
-                         int &srcSamples) override;
+                         int &srcSamples);
-    virtual int transposeMulti(SAMPLETYPE *dest, const SAMPLETYPE *src, int &srcSamples) override;
+    virtual int transposeMulti(SAMPLETYPE *dest, const SAMPLETYPE *src, int &srcSamples);
 public:
     InterpolateLinearInteger();
 
     /// Sets new target rate. Normal rate = 1.0, smaller values represent slower 
     /// rate, larger faster rates.
-    virtual void setRate(double newRate) override;
+    virtual void setRate(double newRate);
-
-    virtual void resetRegisters() override;
-
-    virtual int getLatency() const override
-    {
-        return 0;
-    }
 };
 
 
@@ -74,6 +69,8 @@ class InterpolateLinearFloat : public TransposerBase
 protected:
     double fract;
 
+    virtual void resetRegisters();
+
     virtual int transposeMono(SAMPLETYPE *dest, 
                        const SAMPLETYPE *src, 
                        int &srcSamples);
@@ -84,13 +81,6 @@ protected:
 
 public:
     InterpolateLinearFloat();
-
-    virtual void resetRegisters();
-
-    int getLatency() const
-    {
-        return 0;
-    }
 };
 
 }

source/SoundTouch/InterpolateShannon.cpp

@@ -171,9 +171,9 @@ int InterpolateShannon::transposeStereo(SAMPLETYPE *pdest,
 
 /// Transpose stereo audio. Returns number of produced output samples, and 
 /// updates "srcSamples" to amount of consumed source samples
-int InterpolateShannon::transposeMulti(SAMPLETYPE *,
+int InterpolateShannon::transposeMulti(SAMPLETYPE *pdest, 
-                    const SAMPLETYPE *,
+                    const SAMPLETYPE *psrc, 
-                    int &)
+                    int &srcSamples)
 {
     // not implemented
     assert(false);

source/SoundTouch/InterpolateShannon.h

@@ -46,27 +46,21 @@ namespace soundtouch
 class InterpolateShannon : public TransposerBase
 {
 protected:
+    void resetRegisters();
     int transposeMono(SAMPLETYPE *dest, 
                         const SAMPLETYPE *src, 
-                        int &srcSamples) override;
+                        int &srcSamples);
     int transposeStereo(SAMPLETYPE *dest, 
                         const SAMPLETYPE *src, 
-                        int &srcSamples) override;
+                        int &srcSamples);
     int transposeMulti(SAMPLETYPE *dest, 
                         const SAMPLETYPE *src, 
-                        int &srcSamples) override;
+                        int &srcSamples);
 
     double fract;
 
 public:
     InterpolateShannon();
-
-    void resetRegisters() override;
-
-    virtual int getLatency() const override
-    {
-        return 3;
-    }
 };
 
 }

source/SoundTouch/Makefile.am

@@ -33,7 +33,7 @@ libSoundTouch_la_SOURCES=AAFilter.cpp FIRFilter.cpp FIFOSampleBuffer.cpp    \
     InterpolateShannon.cpp
 
 # Compiler flags
-#AM_CXXFLAGS+=
+AM_CXXFLAGS+=-O3
 
 # Compile the files that need MMX and SSE individually.
 libSoundTouch_la_LIBADD=libSoundTouchMMX.la libSoundTouchSSE.la

source/SoundTouch/PeakFinder.cpp

@@ -57,7 +57,7 @@ int PeakFinder::findTop(const float *data, int peakpos) const
 
     refvalue = data[peakpos];
 
-    // seek within ±10 points
+    // seek within <EFBFBD>10 points
     start = peakpos - 10;
     if (start < minPos) start = minPos;
     end = peakpos + 10;
@@ -142,7 +142,7 @@ int PeakFinder::findCrossingLevel(const float *data, float level, int peakpos, i
     peaklevel = data[peakpos];
     assert(peaklevel >= level);
     pos = peakpos;
-    while ((pos >= minPos) && (pos + direction < maxPos))
+    while ((pos >= minPos) && (pos < maxPos))
     {
         if (data[pos + direction] < level) return pos;   // crossing found
         pos += direction;
@@ -256,7 +256,7 @@ double PeakFinder::detectPeak(const float *data, int aminPos, int amaxPos)
 
         // accept harmonic peak if 
         // (a) it is found
-        // (b) is within ±4% of the expected harmonic interval
+        // (b) is within <EFBFBD>4% of the expected harmonic interval
         // (c) has at least half x-corr value of the max. peak
 
         double diff = harmonic * peaktmp / highPeak;

source/SoundTouch/RateTransposer.cpp

@@ -61,7 +61,6 @@ RateTransposer::RateTransposer() : FIFOProcessor(&outputBuffer)
     // Instantiates the anti-alias filter
     pAAFilter = new AAFilter(64);
     pTransposer = TransposerBase::newInstance();
-    clear();
 }
 
 
@@ -78,7 +77,6 @@ void RateTransposer::enableAAFilter(bool newMode)
 #ifndef SOUNDTOUCH_PREVENT_CLICK_AT_RATE_CROSSOVER
     // Disable Anti-alias filter if desirable to avoid click at rate change zero value crossover
     bUseAAFilter = newMode;
-    clear();
 #endif
 }
 
@@ -131,6 +129,8 @@ void RateTransposer::putSamples(const SAMPLETYPE *samples, uint nSamples)
 // the 'set_returnBuffer_size' function.
 void RateTransposer::processSamples(const SAMPLETYPE *src, uint nSamples)
 {
+    uint count;
+
     if (nSamples == 0) return;
 
     // Store samples to input buffer
@@ -140,7 +140,7 @@ void RateTransposer::processSamples(const SAMPLETYPE *src, uint nSamples)
     // the filter
     if (bUseAAFilter == false) 
     {
-        (void)pTransposer->transpose(outputBuffer, inputBuffer);
+        count = pTransposer->transpose(outputBuffer, inputBuffer);
         return;
     }
 
@@ -192,11 +192,6 @@ void RateTransposer::clear()
     outputBuffer.clear();
     midBuffer.clear();
     inputBuffer.clear();
-    pTransposer->resetRegisters();
-
-    // prefill buffer to avoid losing first samples at beginning of stream
-    int prefill = getLatency();
-    inputBuffer.addSilent(prefill);
 }
 
 
@@ -214,8 +209,7 @@ int RateTransposer::isEmpty() const
 /// Return approximate initial input-output latency
 int RateTransposer::getLatency() const
 {
-    return pTransposer->getLatency() +
+    return (bUseAAFilter) ? pAAFilter->getLength() : 0;
-        ((bUseAAFilter) ? (pAAFilter->getLength() / 2) : 0);
 }
 
 
@@ -307,7 +301,7 @@ TransposerBase *TransposerBase::newInstance()
 
         default:
             assert(false);
-            return nullptr;
+            return NULL;
     }
 #endif
 }

source/SoundTouch/RateTransposer.h

@@ -59,6 +59,8 @@ public:
     };
 
 protected:
+    virtual void resetRegisters() = 0;
+
     virtual int transposeMono(SAMPLETYPE *dest, 
                         const SAMPLETYPE *src, 
                         int &srcSamples)  = 0;
@@ -81,9 +83,6 @@ public:
     virtual int transpose(FIFOSampleBuffer &dest, FIFOSampleBuffer &src);
     virtual void setRate(double newRate);
     virtual void setChannels(int channels);
-    virtual int getLatency() const = 0;
-
-    virtual void resetRegisters() = 0;
 
     // static factory function
     static TransposerBase *newInstance();
@@ -124,7 +123,7 @@ protected:
 
 public:
     RateTransposer();
-    virtual ~RateTransposer() override;
+    virtual ~RateTransposer();
 
     /// Returns the output buffer object
     FIFOSamplePipe *getOutput() { return &outputBuffer; };
@@ -147,13 +146,13 @@ public:
 
     /// Adds 'numSamples' pcs of samples from the 'samples' memory position into
     /// the input of the object.
-    void putSamples(const SAMPLETYPE *samples, uint numSamples) override;
+    void putSamples(const SAMPLETYPE *samples, uint numSamples);
 
     /// Clears all the samples in the object
-    void clear() override;
+    void clear();
 
     /// Returns nonzero if there aren't any samples available for outputting.
-    int isEmpty() const override;
+    int isEmpty() const;
 
     /// Return approximate initial input-output latency
     int getLatency() const;

source/SoundTouch/SoundTouch.cpp

@@ -413,15 +413,15 @@ int SoundTouch::getSetting(int settingId) const
             return (uint)pTDStretch->isQuickSeekEnabled();
 
         case SETTING_SEQUENCE_MS:
-            pTDStretch->getParameters(nullptr, &temp, nullptr, nullptr);
+            pTDStretch->getParameters(NULL, &temp, NULL, NULL);
             return temp;
 
         case SETTING_SEEKWINDOW_MS:
-            pTDStretch->getParameters(nullptr, nullptr, &temp, nullptr);
+            pTDStretch->getParameters(NULL, NULL, &temp, NULL);
             return temp;
 
         case SETTING_OVERLAP_MS:
-            pTDStretch->getParameters(nullptr, nullptr, nullptr, &temp);
+            pTDStretch->getParameters(NULL, NULL, NULL, &temp);
             return temp;
 
         case SETTING_NOMINAL_INPUT_SEQUENCE :

source/SoundTouch/SoundTouch.vcxproj

@@ -20,32 +20,32 @@
   </ItemGroup>
   <PropertyGroup Label="Globals">
     <ProjectGuid>{68A5DD20-7057-448B-8FE0-B6AC8D205509}</ProjectGuid>
-    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>StaticLibrary</ConfigurationType>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
     <UseOfMfc>false</UseOfMfc>
-    <CharacterSet>Unicode</CharacterSet>
+    <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>StaticLibrary</ConfigurationType>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
     <UseOfMfc>false</UseOfMfc>
-    <CharacterSet>Unicode</CharacterSet>
+    <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>StaticLibrary</ConfigurationType>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
     <UseOfMfc>false</UseOfMfc>
-    <CharacterSet>Unicode</CharacterSet>
+    <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>StaticLibrary</ConfigurationType>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
     <UseOfMfc>false</UseOfMfc>
-    <CharacterSet>Unicode</CharacterSet>
+    <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
@@ -112,7 +112,6 @@
       <EnableEnhancedInstructionSet>StreamingSIMDExtensions2</EnableEnhancedInstructionSet>
       <XMLDocumentationFileName>$(IntDir)</XMLDocumentationFileName>
       <BrowseInformationFile>$(IntDir)</BrowseInformationFile>
-      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <ResourceCompile>
       <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
@@ -154,7 +153,6 @@ copy $(OutDir)$(TargetName)$(TargetExt) ..\..\lib</Command>
       </EnableEnhancedInstructionSet>
       <XMLDocumentationFileName>$(IntDir)</XMLDocumentationFileName>
       <BrowseInformationFile>$(IntDir)</BrowseInformationFile>
-      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <ResourceCompile>
       <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
@@ -185,12 +183,11 @@ copy $(OutDir)$(TargetName)$(TargetExt) ..\..\lib</Command>
       <BrowseInformation>true</BrowseInformation>
       <WarningLevel>Level3</WarningLevel>
       <SuppressStartupBanner>true</SuppressStartupBanner>
-      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
       <CompileAs>Default</CompileAs>
       <EnableEnhancedInstructionSet>StreamingSIMDExtensions2</EnableEnhancedInstructionSet>
       <XMLDocumentationFileName>$(IntDir)</XMLDocumentationFileName>
       <BrowseInformationFile>$(IntDir)</BrowseInformationFile>
-      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <ResourceCompile>
       <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
@@ -230,7 +227,6 @@ copy $(OutDir)$(TargetName)$(TargetExt) ..\..\lib</Command>
       </EnableEnhancedInstructionSet>
       <XMLDocumentationFileName>$(IntDir)</XMLDocumentationFileName>
       <BrowseInformationFile>$(IntDir)</BrowseInformationFile>
-      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <ResourceCompile>
       <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>

source/SoundTouch/TDStretch.cpp

@@ -1,4 +1,4 @@
-///////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
 /// 
 /// Sampled sound tempo changer/time stretch algorithm. Changes the sound tempo 
 /// while maintaining the original pitch by using a time domain WSOLA-like 
@@ -54,6 +54,26 @@ using namespace soundtouch;
 
 #define max(x, y) (((x) > (y)) ? (x) : (y))
 
+
+/*****************************************************************************
+ *
+ * Constant definitions
+ *
+ *****************************************************************************/
+
+// Table for the hierarchical mixing position seeking algorithm
+const short _scanOffsets[5][24]={
+    { 124,  186,  248,  310,  372,  434,  496,  558,  620,  682,  744, 806,
+      868,  930,  992, 1054, 1116, 1178, 1240, 1302, 1364, 1426, 1488,   0},
+    {-100,  -75,  -50,  -25,   25,   50,   75,  100,    0,    0,    0,   0,
+        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,   0},
+    { -20,  -15,  -10,   -5,    5,   10,   15,   20,    0,    0,    0,   0,
+        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,   0},
+    {  -4,   -3,   -2,   -1,    1,    2,    3,    4,    0,    0,    0,   0,
+        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,   0},
+    { 121,  114,   97,  114,   98,  105,  108,   32,  104,   99,  117,  111,
+      116,  100,  110,  117,  111,  115,    0,    0,    0,    0,    0,   0}};
+
 /*****************************************************************************
  *
  * Implementation of the class 'TDStretch'
@@ -66,13 +86,18 @@ TDStretch::TDStretch() : FIFOProcessor(&outputBuffer)
     bQuickSeek = false;
     channels = 2;
 
-    pMidBuffer = nullptr;
+    pMidBuffer = NULL;
-    pMidBufferUnaligned = nullptr;
+    pMidBufferUnaligned = NULL;
     overlapLength = 0;
 
     bAutoSeqSetting = true;
     bAutoSeekSetting = true;
 
+    maxnorm = 0;
+    maxnormf = 1e8;
+
+    skipFract = 0;
+
     tempo = 1.0f;
     setParameters(44100, DEFAULT_SEQUENCE_MS, DEFAULT_SEEKWINDOW_MS, DEFAULT_OVERLAP_MS);
     setTempo(1.0f);
@@ -143,7 +168,7 @@ void TDStretch::setParameters(int aSampleRate, int aSequenceMS,
 
 
 /// Get routine control parameters, see setParameters() function.
-/// Any of the parameters to this function can be nullptr, in such case corresponding parameter
+/// Any of the parameters to this function can be NULL, in such case corresponding parameter
 /// value isn't returned.
 void TDStretch::getParameters(int *pSampleRate, int *pSequenceMs, int *pSeekWindowMs, int *pOverlapMs) const
 {
@@ -199,9 +224,6 @@ void TDStretch::clearInput()
     inputBuffer.clear();
     clearMidBuffer();
     isBeginning = true;
-    maxnorm = 0;
-    maxnormf = 1e8;
-    skipFract = 0;
 }
 
 
@@ -293,10 +315,9 @@ int TDStretch::seekBestOverlapPositionFull(const SAMPLETYPE *refPos)
     {
         double corr;
         // Calculates correlation value for the mixing position corresponding to 'i'
-#if defined(_OPENMP) || defined(ST_SIMD_AVOID_UNALIGNED)
+#ifdef _OPENMP
         // in parallel OpenMP mode, can't use norm accumulator version as parallel executor won't
         // iterate the loop in sequential order
-        // in SIMD mode, avoid accumulator version to allow avoiding unaligned positions
         corr = calcCrossCorr(refPos + channels * i, pMidBuffer, norm);
 #else
         // In non-parallel version call "calcCrossCorrAccumulate" that is otherwise same
@@ -654,10 +675,11 @@ void TDStretch::processSamples()
             // Adjust processing offset at beginning of track by not perform initial overlapping
             // and compensating that in the 'input buffer skip' calculation
             isBeginning = false;
-            int skip = (int)(tempo * overlapLength + 0.5 * seekLength + 0.5);
+            int skip = (int)(tempo * overlapLength + 0.5);
 
-            #ifdef ST_SIMD_AVOID_UNALIGNED
+            #ifdef SOUNDTOUCH_ALLOW_NONEXACT_SIMD_OPTIMIZATION
-            // in SIMD mode, round the skip amount to value corresponding to aligned memory address
+                #ifdef SOUNDTOUCH_ALLOW_SSE
+                // if SSE mode, round the skip amount to value corresponding to aligned memory address
                 if (channels == 1)
                 {
                     skip &= -4;
@@ -667,11 +689,9 @@ void TDStretch::processSamples()
                     skip &= -2;
                 }
                 #endif
+            #endif
             skipFract -= skip;
-            if (skipFract <= -nominalSkip)
+            assert(nominalSkip >= -skipFract);
-            {
-                skipFract = -nominalSkip;
-            }
         }
 
         // ... then copy sequence samples from 'inputBuffer' to output:
@@ -740,7 +760,7 @@ void TDStretch::acceptNewOverlapLength(int newOverlapLength)
 
 // Operator 'new' is overloaded so that it automatically creates a suitable instance 
 // depending on if we've a MMX/SSE/etc-capable CPU available or not.
-void * TDStretch::operator new(size_t)
+void * TDStretch::operator new(size_t s)
 {
     // Notice! don't use "new TDStretch" directly, use "newInstance" to create a new instance instead!
     ST_THROW_RT_ERROR("Error in TDStretch::new: Don't use 'new TDStretch' directly, use 'newInstance' member instead!");
@@ -753,7 +773,6 @@ TDStretch * TDStretch::newInstance()
     uint uExtensions;
 
     uExtensions = detectCPUextensions();
-    (void)uExtensions;
 
     // Check if MMX/SSE instruction set extensions supported by CPU
 
@@ -811,19 +830,21 @@ void TDStretch::overlapStereo(short *poutput, const short *input) const
 
 // Overlaps samples in 'midBuffer' with the samples in 'input'. The 'Multi'
 // version of the routine.
-void TDStretch::overlapMulti(short *poutput, const short *input) const
+void TDStretch::overlapMulti(SAMPLETYPE *poutput, const SAMPLETYPE *input) const
 {
-    short m1;
+    SAMPLETYPE m1=(SAMPLETYPE)0;
+    SAMPLETYPE m2;
     int i=0;
 
-    for (m1 = 0; m1 < overlapLength; m1 ++)
+    for (m2 = (SAMPLETYPE)overlapLength; m2; m2 --)
     {
-        short m2 = (short)(overlapLength - m1);
         for (int c = 0; c < channels; c ++)
         {
             poutput[i] = (input[i] * m1 + pMidBuffer[i] * m2)  / overlapLength;
             i++;
         }
+
+        m1++;
     }
 }
 
@@ -868,23 +889,20 @@ double TDStretch::calcCrossCorr(const short *mixingPos, const short *compare, do
     unsigned long lnorm;
     int i;
 
-    #ifdef ST_SIMD_AVOID_UNALIGNED
-        // in SIMD mode skip 'mixingPos' positions that aren't aligned to 16-byte boundary
-        if (((ulongptr)mixingPos) & 15) return -1e50;
-    #endif
-
-    // hint compiler autovectorization that loop length is divisible by 8
-    int ilength = (channels * overlapLength) & -8;
-
     corr = lnorm = 0;
-    // Same routine for stereo and mono
+    // Same routine for stereo and mono. For stereo, unroll loop for better
-    for (i = 0; i < ilength; i += 2)
+    // efficiency and gives slightly better resolution against rounding. 
+    // For mono it same routine, just  unrolls loop by factor of 4
+    for (i = 0; i < channels * overlapLength; i += 4) 
     {
         corr += (mixingPos[i] * compare[i] + 
-                 mixingPos[i + 1] * compare[i + 1]) >> overlapDividerBitsNorm;
+                 mixingPos[i + 1] * compare[i + 1]) >> overlapDividerBitsNorm;  // notice: do intermediate division here to avoid integer overflow
+        corr += (mixingPos[i + 2] * compare[i + 2] + 
+                mixingPos[i + 3] * compare[i + 3]) >> overlapDividerBitsNorm;
         lnorm += (mixingPos[i] * mixingPos[i] + 
-                  mixingPos[i + 1] * mixingPos[i + 1]) >> overlapDividerBitsNorm;
+                mixingPos[i + 1] * mixingPos[i + 1]) >> overlapDividerBitsNorm; // notice: do intermediate division here to avoid integer overflow
-        // do intermediate scalings to avoid integer overflow
+        lnorm += (mixingPos[i + 2] * mixingPos[i + 2] + 
+                mixingPos[i + 3] * mixingPos[i + 3]) >> overlapDividerBitsNorm;
     }
 
     if (lnorm > maxnorm)
@@ -907,12 +925,9 @@ double TDStretch::calcCrossCorr(const short *mixingPos, const short *compare, do
 double TDStretch::calcCrossCorrAccumulate(const short *mixingPos, const short *compare, double &norm)
 {
     long corr;
-    long lnorm;
+    unsigned long lnorm;
     int i;
 
-    // hint compiler autovectorization that loop length is divisible by 8
-    int ilength = (channels * overlapLength) & -8;
-
     // cancel first normalizer tap from previous round
     lnorm = 0;
     for (i = 1; i <= channels; i ++)
@@ -921,11 +936,15 @@ double TDStretch::calcCrossCorrAccumulate(const short *mixingPos, const short *c
     }
 
     corr = 0;
-    // Same routine for stereo and mono.
+    // Same routine for stereo and mono. For stereo, unroll loop for better
-    for (i = 0; i < ilength; i += 2)
+    // efficiency and gives slightly better resolution against rounding. 
+    // For mono it same routine, just  unrolls loop by factor of 4
+    for (i = 0; i < channels * overlapLength; i += 4) 
     {
         corr += (mixingPos[i] * compare[i] + 
-                 mixingPos[i + 1] * compare[i + 1]) >> overlapDividerBitsNorm;
+                 mixingPos[i + 1] * compare[i + 1]) >> overlapDividerBitsNorm;  // notice: do intermediate division here to avoid integer overflow
+        corr += (mixingPos[i + 2] * compare[i + 2] + 
+                 mixingPos[i + 3] * compare[i + 3]) >> overlapDividerBitsNorm;
     }
 
     // update normalizer with last samples of this round
@@ -1026,24 +1045,27 @@ void TDStretch::calculateOverlapLength(int overlapInMsec)
 /// Calculate cross-correlation
 double TDStretch::calcCrossCorr(const float *mixingPos, const float *compare, double &anorm)
 {
-    float corr;
+    double corr;
-    float norm;
+    double norm;
     int i;
 
-    #ifdef ST_SIMD_AVOID_UNALIGNED
-        // in SIMD mode skip 'mixingPos' positions that aren't aligned to 16-byte boundary
-        if (((ulongptr)mixingPos) & 15) return -1e50;
-    #endif
-
-    // hint compiler autovectorization that loop length is divisible by 8
-    int ilength = (channels * overlapLength) & -8;
-
     corr = norm = 0;
-    // Same routine for stereo and mono
+    // Same routine for stereo and mono. For Stereo, unroll by factor of 2.
-    for (i = 0; i < ilength; i ++)
+    // For mono it's same routine yet unrollsd by factor of 4.
+    for (i = 0; i < channels * overlapLength; i += 4) 
     {
-        corr += mixingPos[i] * compare[i];
+        corr += mixingPos[i] * compare[i] +
-        norm += mixingPos[i] * mixingPos[i];
+                mixingPos[i + 1] * compare[i + 1];
+
+        norm += mixingPos[i] * mixingPos[i] + 
+                mixingPos[i + 1] * mixingPos[i + 1];
+
+        // unroll the loop for better CPU efficiency:
+        corr += mixingPos[i + 2] * compare[i + 2] +
+                mixingPos[i + 3] * compare[i + 3];
+
+        norm += mixingPos[i + 2] * mixingPos[i + 2] +
+                mixingPos[i + 3] * mixingPos[i + 3];
     }
 
     anorm = norm;
@@ -1054,7 +1076,7 @@ double TDStretch::calcCrossCorr(const float *mixingPos, const float *compare, do
 /// Update cross-correlation by accumulating "norm" coefficient by previously calculated value
 double TDStretch::calcCrossCorrAccumulate(const float *mixingPos, const float *compare, double &norm)
 {
-    float corr;
+    double corr;
     int i;
 
     corr = 0;
@@ -1065,13 +1087,14 @@ double TDStretch::calcCrossCorrAccumulate(const float *mixingPos, const float *c
         norm -= mixingPos[-i] * mixingPos[-i];
     }
 
-    // hint compiler autovectorization that loop length is divisible by 8
+    // Same routine for stereo and mono. For Stereo, unroll by factor of 2.
-    int ilength = (channels * overlapLength) & -8;
+    // For mono it's same routine yet unrollsd by factor of 4.
-
+    for (i = 0; i < channels * overlapLength; i += 4) 
-    // Same routine for stereo and mono
-    for (i = 0; i < ilength; i ++)
     {
-        corr += mixingPos[i] * compare[i];
+        corr += mixingPos[i] * compare[i] +
+                mixingPos[i + 1] * compare[i + 1] +
+                mixingPos[i + 2] * compare[i + 2] +
+                mixingPos[i + 3] * compare[i + 3];
     }
 
     // update normalizer with last samples of this round

source/SoundTouch/TDStretch.h

@@ -165,7 +165,7 @@ protected:
     
 public:
     TDStretch();
-    virtual ~TDStretch() override;
+    virtual ~TDStretch();
 
     /// Operator 'new' is overloaded so that it automatically creates a suitable instance 
     /// depending on if we've a MMX/SSE/etc-capable CPU available or not.
@@ -187,7 +187,7 @@ public:
     void setTempo(double newTempo);
 
     /// Returns nonzero if there aren't any samples available for outputting.
-    virtual void clear() override;
+    virtual void clear();
 
     /// Clears the input buffer
     void clearInput();
@@ -217,7 +217,7 @@ public:
                        );
 
     /// Get routine control parameters, see setParameters() function.
-    /// Any of the parameters to this function can be nullptr, in such case corresponding parameter
+    /// Any of the parameters to this function can be NULL, in such case corresponding parameter
     /// value isn't returned.
     void getParameters(int *pSampleRate, int *pSequenceMs, int *pSeekWindowMs, int *pOverlapMs) const;
 
@@ -227,7 +227,7 @@ public:
             const SAMPLETYPE *samples,  ///< Input sample data
             uint numSamples                         ///< Number of samples in 'samples' so that one sample
                                                     ///< contains both channels if stereo
-            ) override;
+            );
 
     /// return nominal input sample requirement for triggering a processing batch
     int getInputSampleReq() const
@@ -256,10 +256,10 @@ public:
     class TDStretchMMX : public TDStretch
     {
     protected:
-        double calcCrossCorr(const short *mixingPos, const short *compare, double &norm) override;
+        double calcCrossCorr(const short *mixingPos, const short *compare, double &norm);
-        double calcCrossCorrAccumulate(const short *mixingPos, const short *compare, double &norm) override;
+        double calcCrossCorrAccumulate(const short *mixingPos, const short *compare, double &norm);
-        virtual void overlapStereo(short *output, const short *input) const override;
+        virtual void overlapStereo(short *output, const short *input) const;
-        virtual void clearCrossCorrState() override;
+        virtual void clearCrossCorrState();
     };
 #endif /// SOUNDTOUCH_ALLOW_MMX
 
@@ -269,8 +269,8 @@ public:
     class TDStretchSSE : public TDStretch
     {
     protected:
-        double calcCrossCorr(const float *mixingPos, const float *compare, double &norm) override;
+        double calcCrossCorr(const float *mixingPos, const float *compare, double &norm);
-        double calcCrossCorrAccumulate(const float *mixingPos, const float *compare, double &norm) override;
+        double calcCrossCorrAccumulate(const float *mixingPos, const float *compare, double &norm);
     };
 
 #endif /// SOUNDTOUCH_ALLOW_SSE

source/SoundTouch/mmx_optimized.cpp

@@ -294,8 +294,8 @@ void TDStretchMMX::overlapStereo(short *output, const short *input) const
 
 FIRFilterMMX::FIRFilterMMX() : FIRFilter()
 {
-    filterCoeffsAlign = nullptr;
+    filterCoeffsAlign = NULL;
-    filterCoeffsUnalign = nullptr;
+    filterCoeffsUnalign = NULL;
 }
 
 

source/SoundTouch/sse_optimized.cpp

@@ -80,7 +80,7 @@ double TDStretchSSE::calcCrossCorr(const float *pV1, const float *pV2, double &a
     // Compile-time define SOUNDTOUCH_ALLOW_NONEXACT_SIMD_OPTIMIZATION is provided
     // for choosing if this little cheating is allowed.
 
-#ifdef ST_SIMD_AVOID_UNALIGNED
+#ifdef SOUNDTOUCH_ALLOW_NONEXACT_SIMD_OPTIMIZATION
     // Little cheating allowed, return valid correlation only for 
     // aligned locations, meaning every second round for stereo sound.
 
@@ -195,22 +195,25 @@ double TDStretchSSE::calcCrossCorrAccumulate(const float *pV1, const float *pV2,
 
 FIRFilterSSE::FIRFilterSSE() : FIRFilter()
 {
-    filterCoeffsAlign = nullptr;
+    filterCoeffsAlign = NULL;
-    filterCoeffsUnalign = nullptr;
+    filterCoeffsUnalign = NULL;
 }
 
 
 FIRFilterSSE::~FIRFilterSSE()
 {
     delete[] filterCoeffsUnalign;
-    filterCoeffsAlign = nullptr;
+    filterCoeffsAlign = NULL;
-    filterCoeffsUnalign = nullptr;
+    filterCoeffsUnalign = NULL;
 }
 
 
 // (overloaded) Calculates filter coefficients for SSE routine
 void FIRFilterSSE::setCoefficients(const float *coeffs, uint newLength, uint uResultDivFactor)
 {
+    uint i;
+    float fDivider;
+
     FIRFilter::setCoefficients(coeffs, newLength, uResultDivFactor);
 
     // Scale the filter coefficients so that it won't be necessary to scale the filtering result
@@ -220,13 +223,13 @@ void FIRFilterSSE::setCoefficients(const float *coeffs, uint newLength, uint uRe
     filterCoeffsUnalign = new float[2 * newLength + 4];
     filterCoeffsAlign = (float *)SOUNDTOUCH_ALIGN_POINTER_16(filterCoeffsUnalign);
 
-    const float scale = ::pow(0.5, (int)resultDivFactor);
+    fDivider = (float)resultDivider;
 
-    // rearrange the filter coefficients for sse routines
+    // rearrange the filter coefficients for mmx routines 
-    for (auto i = 0U; i < newLength; i ++)
+    for (i = 0; i < newLength; i ++)
     {
         filterCoeffsAlign[2 * i + 0] =
-        filterCoeffsAlign[2 * i + 1] = coeffs[i] * scale;
+        filterCoeffsAlign[2 * i + 1] = coeffs[i + 0] / fDivider;
     }
 }
 
@@ -242,10 +245,10 @@ uint FIRFilterSSE::evaluateFilterStereo(float *dest, const float *source, uint n
 
     if (count < 2) return 0;
 
-    assert(source != nullptr);
+    assert(source != NULL);
-    assert(dest != nullptr);
+    assert(dest != NULL);
     assert((length % 8) == 0);
-    assert(filterCoeffsAlign != nullptr);
+    assert(filterCoeffsAlign != NULL);
     assert(((ulongptr)filterCoeffsAlign) % 16 == 0);
 
     // filter is evaluated for two stereo samples with each iteration, thus use of 'j += 2'

source/SoundTouchDLL/DllTest/DllTest.cpp

@@ -16,10 +16,9 @@
 #include "../../SoundStretch/WavFile.h"
 
 using namespace std;
-using namespace soundstretch;
 
 // DllTest main
-int wmain(int argc, const wchar_t *argv[])
+int main(int argc, char *argv[])
 {
     // Check program arguments
     if (argc < 4)
@@ -28,22 +27,22 @@ int wmain(int argc, const wchar_t *argv[])
         return -1;
     }
 
-    wstring inFileName = argv[1];
+    const char *inFileName = argv[1];
-    wstring outFileName = argv[2];
+    const char *outFileName = argv[2];
-    wstring str_sampleType = argv[3];
+    string str_sampleType = argv[3];
 
     bool floatSample;
-    if (str_sampleType == L"float")
+    if (str_sampleType.compare("float") == 0)
     {
         floatSample = true;
     }
-    else if (str_sampleType == L"short")
+    else if (str_sampleType.compare("short") == 0)
     {
         floatSample = false;
     }
     else
     { 
-        cerr << "Missing or invalid sampletype. Expected either short or float" << endl;
+        cerr << "Missing or invalid sampletype '" << str_sampleType << "'. Expected either short or float" << endl;
         return -1;
     }
 

source/SoundTouchDLL/DllTest/DllTest.vcxproj

@@ -22,32 +22,32 @@
     <ProjectGuid>{E3C0726F-28F4-4F0B-8183-B87CA60C063C}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>DllTest</RootNamespace>
-    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>

source/SoundTouchDLL/LazarusTest/README.txt

@@ -1,10 +0,0 @@
-This is Lazarus Pascal example that loads the SoundTouch dynamic-load library
-and queries the library version as a simple example how to load SoundTouch from
-Pascal / Lazarus.
-
-Set the SoundTouch dynamic library file name in the 'InitDLL' procedure of
-file 'SoundTouchDLL.pas' depending on if you're building for Windows or Linux.
-
-The example expects the the 'libSoundTouchDll.so' (linux) or 'SoundTouch.dll' (Windows)
-library binary files is found within this project directory, either via soft-link
-(in Linux) or as a copied file.

source/SoundTouchDLL/LazarusTest/libSoundTouchDll.so

@@ -1 +0,0 @@
-../.libs/libSoundTouchDll.so

source/SoundTouchDLL/LazarusTest/main.lfm

@@ -1,36 +0,0 @@
-object Form1: TForm1
-  Left = 2237
-  Height = 128
-  Top = 242
-  Width = 381
-  Caption = 'SoundTouch test'
-  ClientHeight = 128
-  ClientWidth = 381
-  LCLVersion = '2.2.0.4'
-  object Load: TButton
-    Left = 19
-    Height = 50
-    Top = 16
-    Width = 144
-    Caption = 'Load SoundTouch'
-    OnClick = LoadClick
-    TabOrder = 0
-  end
-  object EditVersion: TEdit
-    Left = 184
-    Height = 34
-    Top = 80
-    Width = 184
-    TabOrder = 1
-    Text = 'n/a'
-    TextHint = 'click to populate'
-  end
-  object Label1: TLabel
-    Left = 19
-    Height = 17
-    Top = 90
-    Width = 156
-    Caption = 'Soundtouch lib version:'
-    WordWrap = True
-  end
-end

source/SoundTouchDLL/LazarusTest/main.pas

@@ -1,49 +0,0 @@
-unit main;
-
-{$mode objfpc}{$H+}
-
-interface
-
-uses
-  Classes, SysUtils, Forms, Controls, Graphics, Dialogs, StdCtrls, SoundTouchDLL;
-
-
-type
-
-  { TForm1 }
-
-  TForm1 = class(TForm)
-    EditVersion: TEdit;
-    Label1: TLabel;
-    Load: TButton;
-
-    procedure LoadClick(Sender: TObject);
-  private
-
-  public
-
-  end;
-
-var
-  Form1: TForm1;
-
-implementation
-
-{$R *.lfm}
-
-{ TForm1 }
-
-procedure TForm1.LoadClick(Sender: TObject);
-var
-  version:string;
-begin
-  if IsSoundTouchLoaded() then
-    version := SoundTouchGetVersionString()
-  else
-    version := '<library loading failed>';
-
-  EditVersion.Text:= version;
-end;
-
-end.
-

source/SoundTouchDLL/LazarusTest/soundtouchtest.lpi

@@ -1,78 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<CONFIG>
-  <ProjectOptions>
-    <Version Value="12"/>
-    <General>
-      <SessionStorage Value="InProjectDir"/>
-      <Title Value="soundtouchtest"/>
-      <Scaled Value="True"/>
-      <ResourceType Value="res"/>
-      <UseXPManifest Value="True"/>
-      <XPManifest>
-        <DpiAware Value="True"/>
-      </XPManifest>
-      <Icon Value="0"/>
-    </General>
-    <BuildModes>
-      <Item Name="Default" Default="True"/>
-    </BuildModes>
-    <PublishOptions>
-      <Version Value="2"/>
-      <UseFileFilters Value="True"/>
-    </PublishOptions>
-    <RunParams>
-      <FormatVersion Value="2"/>
-    </RunParams>
-    <RequiredPackages>
-      <Item>
-        <PackageName Value="LCL"/>
-      </Item>
-    </RequiredPackages>
-    <Units>
-      <Unit>
-        <Filename Value="soundtouchtest.lpr"/>
-        <IsPartOfProject Value="True"/>
-      </Unit>
-      <Unit>
-        <Filename Value="main.pas"/>
-        <IsPartOfProject Value="True"/>
-        <ComponentName Value="Form1"/>
-        <HasResources Value="True"/>
-        <ResourceBaseClass Value="Form"/>
-      </Unit>
-    </Units>
-  </ProjectOptions>
-  <CompilerOptions>
-    <Version Value="11"/>
-    <Target>
-      <Filename Value="soundtouchtest"/>
-    </Target>
-    <SearchPaths>
-      <IncludeFiles Value="$(ProjOutDir)"/>
-      <UnitOutputDirectory Value="lib/$(TargetCPU)-$(TargetOS)"/>
-    </SearchPaths>
-    <Linking>
-      <Debugging>
-        <DebugInfoType Value="dsDwarf3"/>
-      </Debugging>
-      <Options>
-        <Win32>
-          <GraphicApplication Value="True"/>
-        </Win32>
-      </Options>
-    </Linking>
-  </CompilerOptions>
-  <Debugging>
-    <Exceptions>
-      <Item>
-        <Name Value="EAbort"/>
-      </Item>
-      <Item>
-        <Name Value="ECodetoolError"/>
-      </Item>
-      <Item>
-        <Name Value="EFOpenError"/>
-      </Item>
-    </Exceptions>
-  </Debugging>
-</CONFIG>

source/SoundTouchDLL/LazarusTest/soundtouchtest.lpr

@@ -1,25 +0,0 @@
-program soundtouchtest;
-
-{$mode objfpc}{$H+}
-
-uses
-  {$IFDEF UNIX}
-  cthreads,
-  {$ENDIF}
-  {$IFDEF HASAMIGA}
-  athreads,
-  {$ENDIF}
-  Interfaces, // this includes the LCL widgetset
-  Forms, main
-  { you can add units after this };
-
-{$R *.res}
-
-begin
-  RequireDerivedFormResource:=True;
-  Application.Scaled:=True;
-  Application.Initialize;
-  Application.CreateForm(TForm1, Form1);
-  Application.Run;
-end.
-

source/SoundTouchDLL/LazarusTest/soundtouchtest.lps

@@ -1,186 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<CONFIG>
-  <ProjectSession>
-    <Version Value="12"/>
-    <BuildModes Active="Default"/>
-    <Units>
-      <Unit>
-        <Filename Value="soundtouchtest.lpr"/>
-        <IsPartOfProject Value="True"/>
-        <EditorIndex Value="-1"/>
-        <WindowIndex Value="-1"/>
-        <TopLine Value="-1"/>
-        <CursorPos X="-1" Y="-1"/>
-        <UsageCount Value="21"/>
-      </Unit>
-      <Unit>
-        <Filename Value="main.pas"/>
-        <IsPartOfProject Value="True"/>
-        <ComponentName Value="Form1"/>
-        <HasResources Value="True"/>
-        <ResourceBaseClass Value="Form"/>
-        <IsVisibleTab Value="True"/>
-        <CursorPos X="26" Y="43"/>
-        <UsageCount Value="21"/>
-        <Loaded Value="True"/>
-        <LoadedDesigner Value="True"/>
-      </Unit>
-      <Unit>
-        <Filename Value="../SoundTouchDLL.pas"/>
-        <EditorIndex Value="-1"/>
-        <TopLine Value="37"/>
-        <CursorPos X="19"/>
-        <UsageCount Value="10"/>
-      </Unit>
-      <Unit>
-        <Filename Value="/usr/lib/lazarus/2.2.0/lcl/interfaces/gtk2/gtk2proc.inc"/>
-        <EditorIndex Value="-1"/>
-        <TopLine Value="7149"/>
-        <CursorPos X="3" Y="7184"/>
-        <UsageCount Value="10"/>
-      </Unit>
-      <Unit>
-        <Filename Value="/usr/lib/lazarus/2.2.0/components/freetype/easylazfreetype.pas"/>
-        <UnitName Value="EasyLazFreeType"/>
-        <EditorIndex Value="-1"/>
-        <TopLine Value="539"/>
-        <CursorPos X="16" Y="574"/>
-        <UsageCount Value="10"/>
-      </Unit>
-      <Unit>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <EditorIndex Value="1"/>
-        <TopLine Value="326"/>
-        <CursorPos X="127" Y="379"/>
-        <UsageCount Value="10"/>
-        <Loaded Value="True"/>
-      </Unit>
-    </Units>
-    <JumpHistory HistoryIndex="29">
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="439" TopLine="403"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="427" Column="37" TopLine="403"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="439" TopLine="403"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="427" Column="32" TopLine="403"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="444" Column="48" TopLine="403"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="439" TopLine="403"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="416" Column="116" TopLine="403"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="439" TopLine="403"/>
-      </Position>
-      <Position>
-        <Filename Value="main.pas"/>
-        <Caret Line="45" Column="40"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="243" Column="38" TopLine="197"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="487" Column="38" TopLine="429"/>
-      </Position>
-      <Position>
-        <Filename Value="main.pas"/>
-        <Caret Line="42" Column="8"/>
-      </Position>
-      <Position>
-        <Filename Value="main.pas"/>
-        <Caret Line="41" Column="44"/>
-      </Position>
-      <Position>
-        <Filename Value="main.pas"/>
-        <Caret Line="44" Column="6"/>
-      </Position>
-      <Position>
-        <Filename Value="main.pas"/>
-        <Caret Line="43" Column="39"/>
-      </Position>
-      <Position>
-        <Filename Value="main.pas"/>
-        <Caret Line="44" Column="7"/>
-      </Position>
-      <Position>
-        <Filename Value="main.pas"/>
-        <Caret Line="38" Column="7"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="467" TopLine="423"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="212" Column="32" TopLine="78"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="361" Column="37" TopLine="308"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="466" Column="37" TopLine="413"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="467" Column="37" TopLine="413"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="466" Column="13" TopLine="413"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="361" Column="13" TopLine="326"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="110" Column="3" TopLine="74"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="180" Column="37" TopLine="145"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="179" Column="55" TopLine="145"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="146" Column="3" TopLine="145"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="149" TopLine="111"/>
-      </Position>
-      <Position>
-        <Filename Value="SoundTouchDLL.pas"/>
-        <Caret Line="151" Column="31" TopLine="116"/>
-      </Position>
-    </JumpHistory>
-    <RunParams>
-      <FormatVersion Value="2"/>
-      <Modes ActiveMode=""/>
-    </RunParams>
-  </ProjectSession>
-</CONFIG>

source/SoundTouchDLL/Makefile.am

@@ -1,47 +0,0 @@
-## Process this file with automake to create Makefile.in
-##
-## This file is part of SoundTouch, an audio processing library for pitch/time adjustments
-##
-## SoundTouch is free software; you can redistribute it and/or modify it under the
-## terms of the GNU General Public License as published by the Free Software
-## Foundation; either version 2 of the License, or (at your option) any later
-## version.
-##
-## SoundTouch is distributed in the hope that it will be useful, but WITHOUT ANY
-## WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-## A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-##
-## You should have received a copy of the GNU General Public License along with
-## this program; if not, write to the Free Software Foundation, Inc., 59 Temple
-## Place - Suite 330, Boston, MA  02111-1307, USA
-
-include $(top_srcdir)/config/am_include.mk
-
-noinst_HEADERS=../SoundTouch/AAFilter.h ../SoundTouch/cpu_detect.h ../SoundTouch/cpu_detect_x86.cpp ../SoundTouch/FIRFilter.h \
-    ../SoundTouch/RateTransposer.h ../SoundTouch/TDStretch.h ../SoundTouch/PeakFinder.h ../SoundTouch/InterpolateCubic.h \
-    ../SoundTouch/InterpolateLinear.h ../SoundTouch/InterpolateShannon.h
-
-include_HEADERS=SoundTouchDLL.h
-
-lib_LTLIBRARIES=libSoundTouchDll.la
-#
-libSoundTouchDll_la_SOURCES=../SoundTouch/AAFilter.cpp ../SoundTouch/FIRFilter.cpp \
-    ../SoundTouch/FIFOSampleBuffer.cpp ../SoundTouch/RateTransposer.cpp ../SoundTouch/SoundTouch.cpp \
-    ../SoundTouch/TDStretch.cpp ../SoundTouch/sse_optimized.cpp ../SoundTouch/cpu_detect_x86.cpp \
-    ../SoundTouch/BPMDetect.cpp ../SoundTouch/PeakFinder.cpp ../SoundTouch/InterpolateLinear.cpp \
-    ../SoundTouch/InterpolateCubic.cpp ../SoundTouch/InterpolateShannon.cpp SoundTouchDLL.cpp
-
-# Compiler flags
-
-# Modify the default 0.0.0 to LIB_SONAME.0.0
-AM_LDFLAGS=$(LDFLAGS) -version-info @LIB_SONAME@
-
-if X86
-CXXFLAGS1=-mstackrealign -msse
-endif
-
-if X86_64
-CXXFLAGS2=-fPIC
-endif
-
-AM_CXXFLAGS=$(CXXFLAGS) $(CXXFLAGS1) $(CXXFLAGS2) -shared -DDLL_EXPORTS -fvisibility=hidden

source/SoundTouchDLL/SoundTouchDLL.cpp

@@ -90,10 +90,10 @@ SOUNDTOUCHDLL_API HANDLE __cdecl soundtouch_createInstance()
     {
         tmp->dwMagic = STMAGIC;
         tmp->pst = new SoundTouch();
-        if (tmp->pst == nullptr)
+        if (tmp->pst == NULL)
         {
             delete tmp;
-            tmp = nullptr;
+            tmp = NULL;
         }
     }
     return (HANDLE)tmp;
@@ -107,7 +107,7 @@ SOUNDTOUCHDLL_API void __cdecl soundtouch_destroyInstance(HANDLE h)
 
     sth->dwMagic = 0;
     if (sth->pst) delete sth->pst;
-    sth->pst = nullptr;
+    sth->pst = NULL;
     delete sth;
 }
 
@@ -207,38 +207,22 @@ SOUNDTOUCHDLL_API void __cdecl soundtouch_setPitchSemiTones(HANDLE h, float newP
 
 
 /// Sets the number of channels, 1 = mono, 2 = stereo
-SOUNDTOUCHDLL_API int __cdecl soundtouch_setChannels(HANDLE h, uint numChannels)
+SOUNDTOUCHDLL_API void __cdecl soundtouch_setChannels(HANDLE h, uint numChannels)
 {
     STHANDLE *sth = (STHANDLE*)h;
-    if (sth->dwMagic != STMAGIC) return 0;
+    if (sth->dwMagic != STMAGIC) return;
 
-    try
-    {
     sth->pst->setChannels(numChannels);
 }
-    catch (const std::exception&)
-    {
-        return 0;
-    }
-    return 1;
-}
 
 /// Sets sample rate.
-SOUNDTOUCHDLL_API int __cdecl soundtouch_setSampleRate(HANDLE h, uint srate)
+SOUNDTOUCHDLL_API void __cdecl soundtouch_setSampleRate(HANDLE h, uint srate)
 {
     STHANDLE *sth = (STHANDLE*)h;
-    if (sth->dwMagic != STMAGIC) return 0;
+    if (sth->dwMagic != STMAGIC) return;
 
-    try
-    {
     sth->pst->setSampleRate(srate);
 }
-    catch (const std::exception&)
-    {
-        return 0;
-    }
-    return 1;
-}
 
 /// Flushes the last samples from the processing pipeline to the output.
 /// Clears also the internal processing buffers.
@@ -247,26 +231,18 @@ SOUNDTOUCHDLL_API int __cdecl soundtouch_setSampleRate(HANDLE h, uint srate)
 /// stream. This function may introduce additional blank samples in the end
 /// of the sound stream, and thus it's not recommended to call this function
 /// in the middle of a sound stream.
-SOUNDTOUCHDLL_API int __cdecl soundtouch_flush(HANDLE h)
+SOUNDTOUCHDLL_API void __cdecl soundtouch_flush(HANDLE h)
 {
     STHANDLE *sth = (STHANDLE*)h;
-    if (sth->dwMagic != STMAGIC) return 0;
+    if (sth->dwMagic != STMAGIC) return;
 
-    try
-    {
     sth->pst->flush();
 }
-    catch (const std::exception&)
-    {
-        return 0;
-    }
-    return 1;
-}
 
 /// Adds 'numSamples' pcs of samples from the 'samples' memory position into
 /// the input of the object. Notice that sample rate _has_to_ be set before
 /// calling this function, otherwise throws a runtime_error exception.
-SOUNDTOUCHDLL_API int __cdecl soundtouch_putSamples(HANDLE h,
+SOUNDTOUCHDLL_API void __cdecl soundtouch_putSamples(HANDLE h, 
         const SAMPLETYPE *samples,      ///< Pointer to sample buffer.
         unsigned int numSamples         ///< Number of samples in buffer. Notice
                                         ///< that in case of stereo-sound a single sample
@@ -274,18 +250,10 @@ SOUNDTOUCHDLL_API int __cdecl soundtouch_putSamples(HANDLE h,
         )
 {
     STHANDLE *sth = (STHANDLE*)h;
-    if (sth->dwMagic != STMAGIC) return 0;
+    if (sth->dwMagic != STMAGIC) return;
 
-    try
-    {
     sth->pst->putSamples(samples, numSamples);
 }
-    catch (const std::exception&)
-    {
-        return 0;
-    }
-    return 1;
-}
 
 /// int16 version of soundtouch_putSamples(): This accept int16 (short) sample data
 /// and internally converts it to float format before processing
@@ -373,9 +341,11 @@ SOUNDTOUCHDLL_API uint __cdecl soundtouch_numUnprocessedSamples(HANDLE h)
 }
 
 
-/// Receive ready samples from the processing pipeline.
+/// Adjusts book-keeping so that given number of samples are removed from beginning of the 
+/// sample buffer without copying them anywhere. 
 ///
-/// if called with outBuffer=nullptr, just reduces amount of ready samples within the pipeline.
+/// Used to reduce the number of samples in the buffer when accessing the sample buffer directly
+/// with 'ptrBegin' function.
 SOUNDTOUCHDLL_API uint __cdecl soundtouch_receiveSamples(HANDLE h, 
         SAMPLETYPE *outBuffer,      ///< Buffer where to copy output samples.
         unsigned int maxSamples     ///< How many samples to receive at max.
@@ -406,7 +376,7 @@ SOUNDTOUCHDLL_API uint __cdecl soundtouch_receiveSamples_i16(HANDLE h,
     if (sth->dwMagic != STMAGIC) return 0;
     uint outTotal = 0;
 
-    if (outBuffer == nullptr)
+    if (outBuffer == NULL)
     {
         // only reduce sample count, not receive samples
         return sth->pst->receiveSamples(maxSamples);
@@ -474,18 +444,11 @@ SOUNDTOUCHDLL_API HANDLE __cdecl bpm_createInstance(int numChannels, int sampleR
     if (tmp)
     {
         tmp->dwMagic = BPMMAGIC;
-        try
-        {
         tmp->pbpm = new BPMDetect(numChannels, sampleRate);
-        }
+        if (tmp->pbpm == NULL)
-        catch (const std::exception&)
-        {
-            tmp->pbpm = nullptr;
-        }
-        if (tmp->pbpm == nullptr)
         {
             delete tmp;
-            tmp = nullptr;
+            tmp = NULL;
         }
     }
     return (HANDLE)tmp;
@@ -499,7 +462,7 @@ SOUNDTOUCHDLL_API void __cdecl bpm_destroyInstance(HANDLE h)
 
     sth->dwMagic = 0;
     if (sth->pbpm) delete sth->pbpm;
-    sth->pbpm = nullptr;
+    sth->pbpm = NULL;
     delete sth;
 }
 
@@ -562,21 +525,3 @@ SOUNDTOUCHDLL_API float __cdecl bpm_getBpm(HANDLE h)
 
     return bpmh->pbpm->getBpm();
 }
-
-
-/// Get beat position arrays. Note: The array includes also really low beat detection values
-/// in absence of clear strong beats. Consumer may wish to filter low values away.
-/// - "pos" receive array of beat positions
-/// - "values" receive array of beat detection strengths
-/// - max_num indicates max.size of "pos" and "values" array.
-///
-/// You can query a suitable array sized by calling this with nullptr in "pos" & "values".
-///
-/// \return number of beats in the arrays.
-SOUNDTOUCHDLL_API int __cdecl bpm_getBeats(HANDLE h, float* pos, float* strength, int count)
-{
-	BPMHANDLE *bpmh = (BPMHANDLE *)h;
-	if (bpmh->dwMagic != BPMMAGIC) return 0;
-
-	return bpmh->pbpm->getBeats(pos, strength, count);
-}

source/SoundTouchDLL/SoundTouchDLL.h

@@ -48,12 +48,12 @@
 #else
     // GNU version
 
-    #if defined(DLL_EXPORTS) || defined(SoundTouchDLL_EXPORTS)
+    #ifdef DLL_EXPORTS
         // GCC declaration for exporting functions
         #define SOUNDTOUCHDLL_API extern "C" __attribute__((__visibility__("default")))
     #else
-        // import function
+        // GCC doesn't require DLL imports
-        #define SOUNDTOUCHDLL_API extern "C"
+        #define SOUNDTOUCHDLL_API
     #endif
 
     // Linux-replacements for Windows declarations:
@@ -112,10 +112,10 @@ SOUNDTOUCHDLL_API void __cdecl soundtouch_setPitchSemiTones(HANDLE h, float newP
 
 
 /// Sets the number of channels, 1 = mono, 2 = stereo, n = multichannel
-SOUNDTOUCHDLL_API int __cdecl soundtouch_setChannels(HANDLE h, unsigned int numChannels);
+SOUNDTOUCHDLL_API void __cdecl soundtouch_setChannels(HANDLE h, unsigned int numChannels);
 
 /// Sets sample rate.
-SOUNDTOUCHDLL_API int __cdecl soundtouch_setSampleRate(HANDLE h, unsigned int srate);
+SOUNDTOUCHDLL_API void __cdecl soundtouch_setSampleRate(HANDLE h, unsigned int srate);
 
 /// Flushes the last samples from the processing pipeline to the output.
 /// Clears also the internal processing buffers.
@@ -124,12 +124,12 @@ SOUNDTOUCHDLL_API int __cdecl soundtouch_setSampleRate(HANDLE h, unsigned int sr
 /// stream. This function may introduce additional blank samples in the end
 /// of the sound stream, and thus it's not recommended to call this function
 /// in the middle of a sound stream.
-SOUNDTOUCHDLL_API int __cdecl soundtouch_flush(HANDLE h);
+SOUNDTOUCHDLL_API void __cdecl soundtouch_flush(HANDLE h);
 
 /// Adds 'numSamples' pcs of samples from the 'samples' memory position into
 /// the input of the object. Notice that sample rate _has_to_ be set before
 /// calling this function, otherwise throws a runtime_error exception.
-SOUNDTOUCHDLL_API int __cdecl soundtouch_putSamples(HANDLE h,
+SOUNDTOUCHDLL_API void __cdecl soundtouch_putSamples(HANDLE h, 
         const float *samples,       ///< Pointer to sample buffer.
         unsigned int numSamples     ///< Number of sample frames in buffer. Notice
                                     ///< that in case of multi-channel sound a single 
@@ -225,16 +225,5 @@ SOUNDTOUCHDLL_API void __cdecl bpm_putSamples_i16(HANDLE h,
 /// \return Beats-per-minute rate, or zero if detection failed.
 SOUNDTOUCHDLL_API float __cdecl bpm_getBpm(HANDLE h);
 
-/// Get beat position arrays. Note: The array includes also really low beat detection values
-/// in absence of clear strong beats. Consumer may wish to filter low values away.
-/// - "pos" receive array of beat positions
-/// - "values" receive array of beat detection strengths
-/// - max_num indicates max.size of "pos" and "values" array.
-///
-/// You can query a suitable array sized by calling this with nullptr in "pos" & "values".
-///
-/// \return number of beats in the arrays.
-SOUNDTOUCHDLL_API int __cdecl bpm_getBeats(HANDLE h, float *pos, float *strength, int count);
-
 #endif  // _SoundTouchDLL_h_
 

source/SoundTouchDLL/SoundTouchDLL.pas

@@ -2,8 +2,11 @@ unit SoundTouchDLL;
 
 //////////////////////////////////////////////////////////////////////////////
 //
-// SoundTouch.dll / libSoundTouchDll.so wrapper for accessing SoundTouch
+// SoundTouch.dll wrapper for accessing SoundTouch routines from Delphi/Pascal
-// routines from Delphi/Pascal/Lazarus
+//
+//  Module Author : Christian Budde
+//
+//  2014-01-12 fixes by Sandro Cumerlato <sandro.cumerlato 'at' gmail.com>
 //
 ////////////////////////////////////////////////////////////////////////////////
 //
@@ -30,8 +33,8 @@ unit SoundTouchDLL;
 
 interface
 
-//uses
+uses
-  //Windows;
+  Windows;
 
 type
   TSoundTouchHandle = THandle;
@@ -104,13 +107,6 @@ type
                                                              //< contains data for both channels.
                                     ); cdecl;
 
-  TSoundTouchPutSamplesI16 = procedure (Handle: TSoundTouchHandle;
-                                     const Samples: Pint16; //< Pointer to sample buffer.
-                                     NumSamples: Cardinal    //< Number of samples in buffer. Notice
-                                                             //< that in case of stereo-sound a single sample
-                                                             //< contains data for both channels.
-                                    ); cdecl;
-
   // Clears all the samples in the object's output and internal processing
   // buffers.
   TSoundTouchClear = procedure (Handle: TSoundTouchHandle); cdecl;
@@ -135,20 +131,16 @@ type
   // Returns number of samples currently unprocessed.
   TSoundTouchNumUnprocessedSamples = function (Handle: TSoundTouchHandle): Cardinal; cdecl;
 
-  /// Receive ready samples from the processing pipeline.
+  // Adjusts book-keeping so that given number of samples are removed from beginning of the
-  ///
+  // sample buffer without copying them anywhere.
-  /// if called with outBuffer=nullptr, just reduces amount of ready samples within the pipeline.
+  //
+  // Used to reduce the number of samples in the buffer when accessing the sample buffer directly
+  // with 'ptrBegin' function.
   TSoundTouchReceiveSamples = function (Handle: TSoundTouchHandle;
                                      OutBuffer: PSingle;           //< Buffer where to copy output samples.
                                      MaxSamples: Integer      //< How many samples to receive at max.
                                     ): Cardinal; cdecl;
 
-  /// int16 version of soundtouch_receiveSamples(): This converts internal float samples
-  /// into int16 (short) return data type
-  TSoundTouchReceiveSamplesI16 = function (Handle: TSoundTouchHandle;
-                                     OutBuffer: int16;        //< Buffer where to copy output samples.
-                                     MaxSamples: Integer      //< How many samples to receive at max.
-                                    ): Cardinal; cdecl;
   // Returns number of samples currently available.
   TSoundTouchNumSamples = function (Handle: TSoundTouchHandle): Cardinal; cdecl;
 
@@ -178,7 +170,6 @@ var
   SoundTouchGetSetting            : TSoundTouchGetSetting;
   SoundTouchNumUnprocessedSamples : TSoundTouchNumUnprocessedSamples;
   SoundTouchReceiveSamples        : TSoundTouchReceiveSamples;
-  SoundTouchReceiveSamplesI16     : TSoundTouchReceiveSamplesI16;
   SoundTouchNumSamples            : TSoundTouchNumSamples;
   SoundTouchIsEmpty               : TSoundTouchIsEmpty;
 
@@ -241,9 +232,6 @@ type
     property IsEmpty: Integer read GetIsEmpty;
   end;
 
-  // list of exported functions and procedures
-function IsSoundTouchLoaded: Boolean;
-
 implementation
 
 { TSoundTouch }
@@ -428,23 +416,19 @@ begin
 end;
 
 var
-  SoundTouchLibHandle: THandle;
+  SoundTouchLibHandle: HINST;
-  SoundTouchDLLFile: AnsiString = 'libSoundTouchDll.so';
+  SoundTouchDLLFile: PAnsiChar = 'SoundTouch.dll';
-  //SoundTouchDLLFile: AnsiString = 'SoundTouch.dll';
 
   // bpm detect functions. untested -- if these don't work then remove:
-  bpm_createInstance: function(chan: int32; sampleRate : int32): THandle; cdecl;
+  bpm_createInstance: function(chan: CInt32; sampleRate : CInt32): THandle; cdecl;
   bpm_destroyInstance: procedure(h: THandle); cdecl;
-  bpm_getBpm: function(h: THandle): Single; cdecl;
+  bpm_getBpm: function(h: THandle): cfloat; cdecl;
-  bpm_putSamples: procedure(h: THandle; const samples: PSingle; numSamples: cardinal); cdecl;
+  bpm_putSamples: procedure(h: THandle; const samples: pcfloat;
+  numSamples: cardinal); cdecl;
 
 procedure InitDLL;
 begin
-{$ifdef mswindows}  // Windows
+  SoundTouchLibHandle := LoadLibrary(SoundTouchDLLFile);
-  SoundTouchLibHandle := LoadLibrary('.\SoundTouchDll.dll');
-{$else}  // Unix
-  SoundTouchLibHandle := LoadLibrary('./libSoundTouchDll.so');
-{$endif}
   if SoundTouchLibHandle <> 0 then
   try
     Pointer(SoundTouchCreateInstance)        := GetProcAddress(SoundTouchLibHandle, 'soundtouch_createInstance');
@@ -489,12 +473,6 @@ begin
   if SoundTouchLibHandle <> 0 then FreeLibrary(SoundTouchLibHandle);
 end;
 
-// returns 'true' if SoundTouch dynamic library has been successfully loaded, otherwise 'false'
-function IsSoundTouchLoaded: Boolean;
-begin;
-  result := SoundTouchLibHandle <> 0
-end;
-
 initialization
   InitDLL;
 

source/SoundTouchDLL/SoundTouchDLL.rc

@@ -51,8 +51,8 @@ END
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 2,3,2,0
+ FILEVERSION 2,1,0,0
- PRODUCTVERSION 2,3,2,0
+ PRODUCTVERSION 2,1,0,0
  FILEFLAGSMASK 0x17L
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -69,12 +69,12 @@ BEGIN
         BEGIN
             VALUE "Comments", "SoundTouch Library licensed for 3rd party applications subject to LGPL license v2.1. Visit http://www.surina.net/soundtouch for more information about the SoundTouch library."
             VALUE "FileDescription", "SoundTouch Dynamic Link Library"
-            VALUE "FileVersion", "2.3.3.0"
+            VALUE "FileVersion", "2.1.0.0"
             VALUE "InternalName", "SoundTouch"
-            VALUE "LegalCopyright", "Copyright (C) Olli Parviainen 2024"
+            VALUE "LegalCopyright", "Copyright (C) Olli Parviainen 2018"
             VALUE "OriginalFilename", "SoundTouch.dll"
             VALUE "ProductName", " SoundTouch Dynamic Link Library"
-            VALUE "ProductVersion", "2.3.3.0"
+            VALUE "ProductVersion", "2.1.0.0"
         END
     END
     BLOCK "VarFileInfo"

source/SoundTouchDLL/SoundTouchDLL.vcxproj

@@ -21,28 +21,28 @@
   <PropertyGroup Label="Globals">
     <ProjectGuid>{164DE61D-6391-4265-8273-30740117D356}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
-    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
-    <CharacterSet>Unicode</CharacterSet>
+    <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
-    <CharacterSet>Unicode</CharacterSet>
+    <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
-    <CharacterSet>Unicode</CharacterSet>
+    <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
-    <CharacterSet>Unicode</CharacterSet>
+    <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
@@ -95,8 +95,7 @@
       <Optimization>Disabled</Optimization>
       <AdditionalIncludeDirectories>..\..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;_CRT_SECURE_NO_WARNINGS;DLL_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <MinimalRebuild>
+      <MinimalRebuild>true</MinimalRebuild>
-      </MinimalRebuild>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
       <PrecompiledHeader />
@@ -107,7 +106,6 @@
       <ObjectFileName>$(OutDir)</ObjectFileName>
       <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
       <EnableEnhancedInstructionSet>StreamingSIMDExtensions2</EnableEnhancedInstructionSet>
-      <FloatingPointModel>Fast</FloatingPointModel>
     </ClCompile>
     <Link>
       <OutputFile>$(OutDir)$(TargetName)$(TargetExt)</OutputFile>
@@ -136,8 +134,7 @@ copy $(OutDir)$(TargetName).lib ..\..\lib
       <Optimization>Disabled</Optimization>
       <AdditionalIncludeDirectories>..\..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;_CRT_SECURE_NO_WARNINGS;DLL_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <MinimalRebuild>
+      <MinimalRebuild>true</MinimalRebuild>
-      </MinimalRebuild>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
       <PrecompiledHeader />
@@ -147,7 +144,6 @@ copy $(OutDir)$(TargetName).lib ..\..\lib
       <AssemblerListingLocation>$(OutDir)</AssemblerListingLocation>
       <ObjectFileName>$(OutDir)</ObjectFileName>
       <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
-      <FloatingPointModel>Fast</FloatingPointModel>
     </ClCompile>
     <Link>
       <OutputFile>$(OutDir)$(TargetName)$(TargetExt)</OutputFile>
@@ -186,8 +182,6 @@ copy $(OutDir)$(TargetName).lib ..\..\lib
       <ObjectFileName>$(OutDir)</ObjectFileName>
       <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
       <EnableEnhancedInstructionSet>StreamingSIMDExtensions2</EnableEnhancedInstructionSet>
-      <MinimalRebuild />
-      <FloatingPointModel>Fast</FloatingPointModel>
     </ClCompile>
     <Link>
       <OutputFile>$(OutDir)$(TargetName)$(TargetExt)</OutputFile>
@@ -229,8 +223,6 @@ copy $(OutDir)$(TargetName).lib ..\..\lib
       <AssemblerListingLocation>$(OutDir)</AssemblerListingLocation>
       <ObjectFileName>$(OutDir)</ObjectFileName>
       <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>
-      <MinimalRebuild />
-      <FloatingPointModel>Fast</FloatingPointModel>
     </ClCompile>
     <Link>
       <OutputFile>$(OutDir)$(TargetName)$(TargetExt)</OutputFile>

source/SoundTouchDLL/make-gnu-dll.sh

@@ -1,8 +1,5 @@
 #!/bin/bash
 #
-# This script is deprecated. Don't use this, the makefile can now compile
-# the dynamic-link library 'libSoundTouchDLL.so' automatically.
-#
 # This script compiles SoundTouch dynamic-link library for GNU environment 
 # with wrapper functions that are easier to import to Java / Mono / etc
 #
@@ -19,11 +16,7 @@ if [[ $arch == *"86"* ]]; then
     fi
 fi
 
-echo "*************************************************************************"
-echo "NOTE: Rather use the makefile that can now build the dynamic-link library"
-echo "*************************************************************************"
-echo ""
 echo "Building SoundTouchDLL for $arch with flags:$flags"
 
-g++ -O3 -ffast-math -shared $flags -DDLL_EXPORTS -fvisibility=hidden -I../../include \
+g++ -O3 -shared $flags -DDLL_EXPORTS -fvisibility=hidden -I../../include \
     -I../SoundTouch -o SoundTouchDll.so SoundTouchDLL.cpp ../SoundTouch/*.cpp

source/csharp-example/App.config

@@ -1,6 +1,6 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8" ?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1"/>
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
     </startup>
 </configuration>

source/csharp-example/Properties/AssemblyInfo.cs

@@ -12,7 +12,7 @@ using System.Windows;
 [assembly: AssemblyConfiguration("")]
 [assembly: AssemblyCompany("")]
 [assembly: AssemblyProduct("csharp-example")]
-[assembly: AssemblyCopyright("Copyright © Olli Parviainen")]
+[assembly: AssemblyCopyright("Copyright Olli Parviainen ©  2017")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
 

source/csharp-example/Properties/Resources.Designer.cs

@@ -8,8 +8,8 @@
 // </auto-generated>
 //------------------------------------------------------------------------------
 
-namespace csharp_example.Properties {
+namespace csharp_example.Properties
-    using System;
+{
 
 
     /// <summary>
@@ -19,26 +19,31 @@ namespace csharp_example.Properties {
     // class via a tool like ResGen or Visual Studio.
     // To add or remove a member, edit your .ResX file then rerun ResGen
     // with the /str option, or rebuild your VS project.
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "16.0.0.0")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    internal class Resources {
+    internal class Resources
+    {
 
         private static global::System.Resources.ResourceManager resourceMan;
 
         private static global::System.Globalization.CultureInfo resourceCulture;
 
         [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
-        internal Resources() {
+        internal Resources()
+        {
         }
 
         /// <summary>
         ///   Returns the cached ResourceManager instance used by this class.
         /// </summary>
         [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
-        internal static global::System.Resources.ResourceManager ResourceManager {
+        internal static global::System.Resources.ResourceManager ResourceManager
-            get {
+        {
-                if (object.ReferenceEquals(resourceMan, null)) {
+            get
+            {
+                if ((resourceMan == null))
+                {
                     global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("csharp_example.Properties.Resources", typeof(Resources).Assembly);
                     resourceMan = temp;
                 }
@@ -51,11 +56,14 @@ namespace csharp_example.Properties {
         ///   resource lookups using this strongly typed resource class.
         /// </summary>
         [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
-        internal static global::System.Globalization.CultureInfo Culture {
+        internal static global::System.Globalization.CultureInfo Culture
-            get {
+        {
+            get
+            {
                 return resourceCulture;
             }
-            set {
+            set
+            {
                 resourceCulture = value;
             }
         }

source/csharp-example/Properties/Settings.Designer.cs

@@ -8,17 +8,21 @@
 // </auto-generated>
 //------------------------------------------------------------------------------
 
-namespace csharp_example.Properties {
+namespace csharp_example.Properties
+{
 
 
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "16.10.0.0")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "11.0.0.0")]
-    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase {
+    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase
+    {
 
         private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
 
-        public static Settings Default {
+        public static Settings Default
-            get {
+        {
+            get
+            {
                 return defaultInstance;
             }
         }

source/csharp-example/csharp-example.csproj

@@ -9,15 +9,14 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>csharp_example</RootNamespace>
     <AssemblyName>csharp-example</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <ProjectTypeGuids>{60dc8134-eba5-43b8-bcc9-bb4bc16c2548};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
     <WarningLevel>4</WarningLevel>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
-    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
-    <PlatformTarget>x64</PlatformTarget>
+    <PlatformTarget>AnyCPU</PlatformTarget>
     <DebugSymbols>true</DebugSymbols>
     <DebugType>full</DebugType>
     <Optimize>false</Optimize>
@@ -25,7 +24,6 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
-    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>