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@@ -0,0 +1,85 @@
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HOW TO ACTIVATE LIBSAMPLERATE
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(a.k.a SRC/Secret Rabbit Code)
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AS PJMEDIA'S SAMPLE RATE CONVERSION BACKEND
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by
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Benny Prijono
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PJSIP
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Background
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----------
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Secret Rabbit Code (aka libsamplerate) is a sample rate conversion
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library, available from http://www.mega-nerd.com/SRC/index.html.
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It is licensed under dual license, GPL and proprietary.
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Supported Platforms
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-------------------
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libsamplerate is available for Win32 with Visual Studio and the
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Makefile based targets (such as Linux, MacOS X, *nix, etc.).
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It's not supported for WinCE/Windows Mobile and Symbian since it is
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a floating point based implementation.
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Installation
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------------
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- Download libsamplerate from http://www.mega-nerd.com/SRC/index.html
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- Untar libsamplerate-0.1.2.tar.gz into third_party directory
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cd third_party
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tar xzf libsamplerate-0.1.2.tar.gz
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- Rename libsamplerate-0.1.2 directory name to libsamplerate
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On Windows:
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ren libsamplerate-0.1.2 libsamplerate
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On Linux/Unix/MacOS X:
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mv libsamplerate-0.1.2 libsamplerate
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Visual Studio Build
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-------------------
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For Visual Studio projects, only static linkage is supported
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by PJMEDIA build system. If dynamic linking is desired, edit
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pjmedia/src/pjmedia/resample_libresample.c to prevent it from
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linking with the static library, and configure your project
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to link with libsamplerate DLL library.
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To build libresample static library with Visual Studio:
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- Open third_party/build/samplerate/libsamplerate_static.dsp
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- Build the project for both Debug and Release build
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libresample dynamic library can be produced by following the
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instructions in libresample source directory.
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Makefile build
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--------------
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- Build and install libsamplerate (configure && make && make install).
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Please follow the instructions in libsamplerate documentation.
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- Re-run PJSIP's "configure" script with this option:
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./configure --enable-libsamplerate
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this will detect the presence of libsamplerate library and add it
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to the input library list.
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Enabling libsamplerate for PJMEDIA's resample
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---------------------------------------------
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For both Visual Studio and Makefile based build system, add this in
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config_site.h:
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#define PJMEDIA_RESAMPLE_IMP PJMEDIA_RESAMPLE_LIBSAMPLERATE
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Limitations
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-----------
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Sample rate 22050 Hz is only supported with 20ms ptime, and sample rate 11025 Hz is only supported with 40ms ptime. This is the limitation of PJMEDIA rather than libsamplerate.
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@@ -0,0 +1,138 @@
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!IF "$(OS)" == "Windows_NT"
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NULL=
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!ELSE
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NULL=nul
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!ENDIF
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CPP=cl.exe
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RSC=rc.exe
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F90=df.exe
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BSC32=bscmake.exe
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BSC32_SBRS= \
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LIB32=link.exe -lib
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OUTDIR_REL=.\output\libsamplerate-i386-win32-vc-release
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INTDIR_REL=.\output\libsamplerate-i386-win32-vc-release
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OUTDIR_DEB=.\output\libsamplerate-i386-win32-vc-debug
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INTDIR_DEB=.\output\libsamplerate-i386-win32-vc-debug
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LIB_REL=..\..\lib\libsamplerate-i386-win32-vc-release.lib
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LIB_DEB=..\..\lib\libsamplerate-i386-win32-vc-debug.lib
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ALL : $(LIB_REL) $(LIB_DEB)
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CLEAN :
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-@erase "$(INTDIR_REL)\*.obj"
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-@erase "$(INTDIR_REL)\*.pch"
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-@erase "$(INTDIR_REL)\*.pdb"
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-@erase "$(INTDIR_REL)\*.idb"
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@rmdir $(INTDIR_REL)
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-@erase "$(INTDIR_DEB)\*.obj"
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-@erase "$(INTDIR_DEB)\*.pch"
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-@erase "$(INTDIR_DEB)\*.pdb"
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-@erase "$(INTDIR_DEB)\*.idb"
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@rmdir $(INTDIR_DEB)
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-@erase $(LIB_REL)
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-@erase $(LIB_DEB)
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"$(OUTDIR_REL)" :
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if not exist "$(OUTDIR_REL)/$(NULL)" mkdir "$(OUTDIR_REL)"
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CPP_PROJ_REL=/nologo /MD /W3 /GX /O2 /I "../win32" /I "../../libsamplerate/src" /D "WIN32" /D "NDEBUG" /D "_MBCS" /D "_LIB" /Fp"$(INTDIR_REL)\libsamplerate_static.pch" /YX /Fo"$(INTDIR_REL)\\" /Fd"$(INTDIR_REL)\\" /FD /c
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LIB32_FLAGS_REL=/nologo /out:$(LIB_REL)
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LIB32_OBJS_REL= \
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"$(INTDIR_REL)\samplerate.obj" \
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"$(INTDIR_REL)\src_linear.obj" \
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"$(INTDIR_REL)\src_sinc.obj" \
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"$(INTDIR_REL)\src_zoh.obj"
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$(LIB_REL) : "$(OUTDIR_REL)" $(DEF_FILE) $(LIB32_OBJS_REL)
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$(LIB32) @<<
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$(LIB32_FLAGS_REL) $(DEF_FLAGS) $(LIB32_OBJS_REL)
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<<
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"$(OUTDIR_DEB)" :
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if not exist "$(OUTDIR_DEB)/$(NULL)" mkdir "$(OUTDIR_DEB)"
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CPP_PROJ_DEB=/nologo /MTd /W3 /Gm /GX /ZI /Od /I "../win32" /I "../../libsamplerate/src" /D "WIN32" /D "_DEBUG" /D "_MBCS" /D "_LIB" /Fp"$(INTDIR_DEB)\libsamplerate_static.pch" /YX /Fo"$(INTDIR_DEB)\\" /Fd"$(INTDIR_DEB)\\" /FD /GZ /c
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LIB32_FLAGS_DEB=/nologo /out:$(LIB_DEB)
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LIB32_OBJS_DEB= \
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"$(INTDIR_DEB)\samplerate.obj" \
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"$(INTDIR_DEB)\src_linear.obj" \
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"$(INTDIR_DEB)\src_sinc.obj" \
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"$(INTDIR_DEB)\src_zoh.obj"
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$(LIB_DEB) : "$(OUTDIR_DEB)" $(DEF_FILE) $(LIB32_OBJS_DEB)
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$(LIB32) @<<
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$(LIB32_FLAGS_DEB) $(DEF_FLAGS) $(LIB32_OBJS_DEB)
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<<
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..\..\libsamplerate\src\samplerate.c : \
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"..\..\libsamplerate\src\common.h"\
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"..\..\libsamplerate\src\config.h"\
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"..\..\libsamplerate\src\float_cast.h"\
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"..\..\libsamplerate\src\samplerate.h"\
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..\..\libsamplerate\src\src_linear.c : \
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"..\..\libsamplerate\src\common.h"\
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"..\..\libsamplerate\src\config.h"\
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"..\..\libsamplerate\src\float_cast.h"\
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"..\..\libsamplerate\src\samplerate.h"\
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..\..\libsamplerate\src\src_sinc.c : \
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"..\..\libsamplerate\src\common.h"\
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"..\..\libsamplerate\src\config.h"\
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"..\..\libsamplerate\src\fastest_coeffs.h"\
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"..\..\libsamplerate\src\float_cast.h"\
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"..\..\libsamplerate\src\high_qual_coeffs.h"\
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"..\..\libsamplerate\src\mid_qual_coeffs.h"\
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"..\..\libsamplerate\src\samplerate.h"\
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..\..\libsamplerate\src\src_zoh.c : \
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"..\..\libsamplerate\src\common.h"\
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"..\..\libsamplerate\src\config.h"\
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"..\..\libsamplerate\src\float_cast.h"\
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"..\..\libsamplerate\src\samplerate.h"\
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SOURCE=..\..\libsamplerate\src\samplerate.c
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"$(INTDIR_DEB)\samplerate.obj" : $(SOURCE) "$(INTDIR_DEB)"
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$(CPP) $(CPP_PROJ_DEB) $(SOURCE)
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"$(INTDIR_REL)\samplerate.obj" : $(SOURCE) "$(INTDIR_REL)"
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$(CPP) $(CPP_PROJ_REL) $(SOURCE)
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SOURCE=..\..\libsamplerate\src\src_linear.c
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"$(INTDIR_DEB)\src_linear.obj" : $(SOURCE) "$(INTDIR_DEB)"
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$(CPP) $(CPP_PROJ_DEB) $(SOURCE)
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"$(INTDIR_REL)\src_linear.obj" : $(SOURCE) "$(INTDIR_REL)"
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$(CPP) $(CPP_PROJ_REL) $(SOURCE)
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SOURCE=..\..\libsamplerate\src\src_sinc.c
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"$(INTDIR_DEB)\src_sinc.obj" : $(SOURCE) "$(INTDIR_DEB)"
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$(CPP) $(CPP_PROJ_DEB) $(SOURCE)
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"$(INTDIR_REL)\src_sinc.obj" : $(SOURCE) "$(INTDIR_REL)"
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$(CPP) $(CPP_PROJ_REL) $(SOURCE)
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SOURCE=..\..\libsamplerate\src\src_zoh.c
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"$(INTDIR_DEB)\src_zoh.obj" : $(SOURCE) "$(INTDIR_DEB)"
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$(CPP) $(CPP_PROJ_DEB) $(SOURCE)
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"$(INTDIR_REL)\src_zoh.obj" : $(SOURCE) "$(INTDIR_REL)"
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$(CPP) $(CPP_PROJ_REL) $(SOURCE)
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@@ -0,0 +1,114 @@
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# Microsoft Developer Studio Project File - Name="libsamplerate_static" - Package Owner=<4>
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# Microsoft Developer Studio Generated Build File, Format Version 6.00
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# ** DO NOT EDIT **
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# TARGTYPE "Win32 (x86) Static Library" 0x0104
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CFG=libsamplerate_static - Win32 Debug
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!MESSAGE This is not a valid makefile. To build this project using NMAKE,
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!MESSAGE use the Export Makefile command and run
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!MESSAGE
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!MESSAGE NMAKE /f "libsamplerate_static.mak".
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!MESSAGE
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!MESSAGE You can specify a configuration when running NMAKE
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!MESSAGE by defining the macro CFG on the command line. For example:
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!MESSAGE
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!MESSAGE NMAKE /f "libsamplerate_static.mak" CFG="libsamplerate_static - Win32 Debug"
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!MESSAGE
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!MESSAGE Possible choices for configuration are:
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!MESSAGE
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!MESSAGE "libsamplerate_static - Win32 Release" (based on "Win32 (x86) Static Library")
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!MESSAGE "libsamplerate_static - Win32 Debug" (based on "Win32 (x86) Static Library")
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!MESSAGE
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# Begin Project
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# PROP AllowPerConfigDependencies 0
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# PROP Scc_ProjName ""
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# PROP Scc_LocalPath ""
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CPP=cl.exe
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RSC=rc.exe
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!IF "$(CFG)" == "libsamplerate_static - Win32 Release"
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# PROP BASE Use_MFC 0
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# PROP BASE Use_Debug_Libraries 0
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# PROP BASE Output_Dir "output/libsamplerate-i386-win32-vc-release"
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# PROP BASE Intermediate_Dir "output/libsamplerate-i386-win32-vc-release"
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# PROP BASE Target_Dir ""
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# PROP Use_MFC 0
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# PROP Use_Debug_Libraries 0
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# PROP Output_Dir "output/libsamplerate-i386-win32-vc-release"
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# PROP Intermediate_Dir "output/libsamplerate-i386-win32-vc-release"
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# PROP Target_Dir ""
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F90=df.exe
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# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_MBCS" /D "_LIB" /YX /FD /c
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# ADD CPP /nologo /MD /W3 /GX /O2 /I "./win32" /I "../../libsamplerate/src" /D "WIN32" /D "NDEBUG" /D "_MBCS" /D "_LIB" /YX /FD /c
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# ADD BASE RSC /l 0x409 /d "NDEBUG"
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# ADD RSC /l 0x409 /d "NDEBUG"
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BSC32=bscmake.exe
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# ADD BASE BSC32 /nologo
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# ADD BSC32 /nologo
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LIB32=link.exe -lib
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# ADD BASE LIB32 /nologo
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# ADD LIB32 /nologo /out:"..\..\lib\libsamplerate-i386-win32-vc-release.lib"
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!ELSEIF "$(CFG)" == "libsamplerate_static - Win32 Debug"
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# PROP BASE Use_MFC 0
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# PROP BASE Use_Debug_Libraries 1
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# PROP BASE Output_Dir "output/libsamplerate-i386-win32-vc-debug"
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# PROP BASE Intermediate_Dir "output/libsamplerate-i386-win32-vc-debug"
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# PROP BASE Target_Dir ""
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# PROP Use_MFC 0
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# PROP Use_Debug_Libraries 1
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# PROP Output_Dir "output/libsamplerate-i386-win32-vc-debug"
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# PROP Intermediate_Dir "output/libsamplerate-i386-win32-vc-debug"
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# PROP Target_Dir ""
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F90=df.exe
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# ADD BASE CPP /nologo /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_MBCS" /D "_LIB" /YX /FD /GZ /c
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# ADD CPP /nologo /MTd /W3 /Gm /GX /ZI /Od /I "./win32" /I "../../libsamplerate/src" /D "WIN32" /D "_DEBUG" /D "_MBCS" /D "_LIB" /YX /FD /GZ /c
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# ADD BASE RSC /l 0x409 /d "_DEBUG"
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# ADD RSC /l 0x409 /d "_DEBUG"
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BSC32=bscmake.exe
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# ADD BASE BSC32 /nologo
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# ADD BSC32 /nologo
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LIB32=link.exe -lib
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# ADD BASE LIB32 /nologo
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# ADD LIB32 /nologo /out:"..\..\lib\libsamplerate-i386-win32-vc-debug.lib"
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!ENDIF
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# Begin Target
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# Name "libsamplerate_static - Win32 Release"
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# Name "libsamplerate_static - Win32 Debug"
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# Begin Group "Source Files"
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# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
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# Begin Source File
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SOURCE=..\..\libsamplerate\src\samplerate.c
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# End Source File
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# Begin Source File
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SOURCE=..\..\libsamplerate\src\src_linear.c
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# End Source File
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# Begin Source File
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SOURCE=..\..\libsamplerate\src\src_sinc.c
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# End Source File
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# Begin Source File
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SOURCE=..\..\libsamplerate\src\src_zoh.c
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# End Source File
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||||
# End Group
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||||
# Begin Group "Header Files"
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||||
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# PROP Default_Filter "h;hpp;hxx;hm;inl"
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||||
# Begin Source File
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||||
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||||
SOURCE=..\..\libsamplerate\src\samplerate.h
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# End Source File
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||||
# End Group
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||||
# End Target
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||||
# End Project
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Reference in new issue
Block a user