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• compiling ffmpeg libs with libvpx enabled on windows

  12 juin 2021, par Satishsuman

  Need some regarding compiling ffmpeg with libvpx enabled on windows. Here is the steps i followed and error i got

  



  

  1. installed msys2 on windows and installed required packages(git,pkg-config,gcc compiler etc)

  


  2. cloned libvpx from "https://github.com/webmproject/libvpx.git" and created a vs15 solution(command : ./configure —disable-vp8 —disable-vp9-encoder —target=x86_64-win64-vs15)

  


  3. open vpx.sln and compiled vpxmd.lib sucessfully(created a vpx.pc file and kept include and libs at proper place)

  


  4. cloned ffmpeg from https://github.com/FFmpeg/FFmpeg.git and from msys2 i tried building it(command : ./configure —enable-asm —enable-yasm —arch=x86_64 —target-os=win64 —disable-encoders —disable-muxers —enable-libvpx —disable-doc —disable-ffplay —disable-ffprobe —disable-ffmpeg —enable-shared —disable-static —disable-bzlib —disable-libopenjpeg —disable-iconv —disable-zlib —prefix=/d/Stadia/FFmpeg —toolchain=msvc —disable-debug)

  


  



  ffmpeg libs a building fine but it doesn't include libvpx.
config.log is below :

  



  


  ./ffconf.NEscC1Fm/test.c(4) : warning C4311 : 'type cast' : pointer
 truncation from 'vpx_codec_iface_t *(__cdecl *)(void)' to 'long'

  
 


  ./compat/windows/mslink /usr/local/lib -nologo -I/usr/local/include
 -libpath :/usr/local/lib -out :./ffconf.NEscC1Fm/test.exe ./ffconf.NEscC1Fm/test.o vpx.lib

  
 


  LINK : warning LNK4044 : unrecognized option
 '/IC :/msys64/usr/local/include' ; ignored lib.obj(vp8_vp8_dx_iface.obj)
 : MSIL .netmodule or module compiled with /GL found ; restarting link
 with /LTCG ; add /LTCG to the link command line to improve linker
 performance

  
 


  LINK : warning LNK4044 : unrecognized option
 '/IC :/msys64/usr/local/include' ; ignored

  
 


  LINK : warning LNK4098 : defaultlib 'MSVCRT' conflicts with use of
 other libs ; use /NODEFAULTLIB:library lib.obj(vpx_mem_vpx_mem.obj) : 
 error LNK2001 : unresolved external symbol __imp_malloc
 lib.obj(vp8_decoder_threading.obj) : error LNK2001 : unresolved
 external symbol __imp__beginthreadex
 lib.obj(vp8_decoder_decodeframe.obj) : error LNK2001 : unresolved
 external symbol __imp_fopen ./ffconf.NEscC1Fm/test.exe : fatal error
 LNK1120 : 3 unresolved externals

  
 


  my msys2 is installed at C :/msys2/ and /home/ correspond to
 C/msys2/home if i use —extra-ldflags="-L/home/usr/local/lib" , linker
 treates it as /LC :/msys2/usr/local/lib and hence fails.

  


  



  A step by step guide would be very much appreciated here

  


• Compile ffmpeg with x264 shows : ERROR : libx264 not found

  6 mai 2019, par NKam

  Trying to install ffmpeg from source with libx264 package. When I compile ffmpeg can’t find x264 because it is not installed.
  I followed ffmpeg installation guide.

  I tried to install and compile ffmpeg locally and found out in folder ffmpeg_build/include I don’t have x264 files installed.

  To compile libx264 I used :

  cd /ffmpeg_sources &&

  git -C x264 pull 2> /dev/null || git clone —depth 1 https://code.videolan.org/videolan/x264.git &&

  cd x264 &&

  PATH="$HOME/bin :$PATH"

  PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure —prefix="$HOME/ffmpeg_build" —bindir="$HOME/bin" —enable-static —enable-pic &&

  PATH="$HOME/bin :$PATH" make &&

  make install

  I changed url to https://code.videolan.org/videolan/x264.git, because this url https://git.videolan.org/git/x264 from guide not working

  Here how config.log’s last lines look like

  test_cflags -Wmaybe-uninitialized
  
  test_cc -Wmaybe-uninitialized
  
  BEGIN /tmp/ffconf.1LD1vklR/test.c
  
      1   int x;
  
  END /tmp/ffconf.1LD1vklR/test.c
  
  gcc -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -DPIC -I/home/nurs/ffmpeg_build/include -std=c11 -fomit-frame-pointer -fPIC -pthread -I/home/nurs/ffmpeg_build/include -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/fribidi -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/opus -I/usr/include/opus -I/usr/include/alsa -g -Wdeclaration-after-statement -Wall -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wwrite-strings -Wtype-limits -Wundef -Wmissing-prototypes -Wno-pointer-to-int-cast -Wstrict-prototypes -Wempty-body -Wno-parentheses -Wno-switch -Wno-format-zero-length -Wno-pointer-sign -Wno-unused-const-variable -Wno-char-subscripts -O3 -fno-math-errno -fno-signed-zeros -fno-tree-vectorize -Werror=format-security -Werror=implicit-function-declaration -Werror=missing-prototypes -Werror=return-type -Werror=vla -Wformat -fdiagnostics-color=auto -Wmaybe-uninitialized -c -o /tmp/ffconf.1LD1vklR/test.o /tmp/ffconf.1LD1vklR/test.c

  I want to know what I missed. I want ffmpeg to find x264, if it is not installed how can I find way to install.

• Compile ffmpeg with x264 shows : ERROR : libx264 not found

  6 mai 2019, par NKam

  Trying to install ffmpeg from source with libx264 package. When I compile ffmpeg can’t find x264 because it is not installed.
  I followed ffmpeg installation guide.

  I tried to install and compile ffmpeg locally and found out in folder ffmpeg_build/include I don’t have x264 files installed.

  To compile libx264 I used :

  cd /ffmpeg_sources &&

  git -C x264 pull 2> /dev/null || git clone —depth 1 https://code.videolan.org/videolan/x264.git &&

  cd x264 &&

  PATH="$HOME/bin :$PATH"

  PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure —prefix="$HOME/ffmpeg_build" —bindir="$HOME/bin" —enable-static —enable-pic &&

  PATH="$HOME/bin :$PATH" make &&

  make install

  I changed url to https://code.videolan.org/videolan/x264.git, because this url https://git.videolan.org/git/x264 from guide not working

  Here how config.log’s last lines look like

  test_cflags -Wmaybe-uninitialized
  
  test_cc -Wmaybe-uninitialized
  
  BEGIN /tmp/ffconf.1LD1vklR/test.c
  
      1   int x;
  
  END /tmp/ffconf.1LD1vklR/test.c
  
  gcc -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -DPIC -I/home/nurs/ffmpeg_build/include -std=c11 -fomit-frame-pointer -fPIC -pthread -I/home/nurs/ffmpeg_build/include -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/fribidi -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/opus -I/usr/include/opus -I/usr/include/alsa -g -Wdeclaration-after-statement -Wall -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wwrite-strings -Wtype-limits -Wundef -Wmissing-prototypes -Wno-pointer-to-int-cast -Wstrict-prototypes -Wempty-body -Wno-parentheses -Wno-switch -Wno-format-zero-length -Wno-pointer-sign -Wno-unused-const-variable -Wno-char-subscripts -O3 -fno-math-errno -fno-signed-zeros -fno-tree-vectorize -Werror=format-security -Werror=implicit-function-declaration -Werror=missing-prototypes -Werror=return-type -Werror=vla -Wformat -fdiagnostics-color=auto -Wmaybe-uninitialized -c -o /tmp/ffconf.1LD1vklR/test.o /tmp/ffconf.1LD1vklR/test.c

  I want to know what I missed. I want ffmpeg to find x264, if it is not installed how can I find way to install.