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• ffmpeg build from source fails in docker container ?

  24 mars 2016, par John Allard

  I’m trying to make some changes to the ffmpeg source code (yes, I’m a masochist), and to start I booted an Arch Linux docker container, installed the requirements, downloaded ffmpeg source code, and tried to compile, but I’m getting some extremely odd errors.

  compile command :

  ./configure --bindidr=~/ffmpeg_build --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libx264 --enable-nonfree

  Output :

  ./configure:unset:3338: no such has table element: mktemp
  
  pr: /tmp/ffconf.uQI7CeV.c: No such file or directory.
  
  pr: /tmp/ffconf.uQI7CeV.c: No such file or directory.
  
  pr: /tmp/ffconf.uQI7CeV.c: No such file or directory.
  
  pr: /tmp/ffconf.uQI7CeV.c: No such file or directory.
  
  ... (24 times)
  
  pr: /tmp/ffconf.uQI7CeV.c: No such file or directory.
  
  pr: /tmp/ffconf.r547UgWy.m: No such file or directory.
  
  ./configure:53378: parse error near '}'
  
  ==> ERROR" A failure occured in build()
  
      Aborting...
  
  The build failed.

  This doesn’t seem to be a problem with ffmpeg, more a problem with the container. If I check find /tmp -name ffconf\* I see that the files do exist and they contain

  extern int getrusage();
  
  int main(void){ getrusage(); }

  what in the hell is going on ? hash tabled ? mktemp not working ? files not being found ?

  edit-

  here is what is on the line numbers in the files that give the errors

  3338:configure - unset -f mktemp
  
  5338:configure - check_builtin gmtime_r time.g "time_t * time; strict tm*; gmtime_r(time, tm)"

  edit2 - Here’s the dockerfile (cloned from here https://hub.docker.com/r/greyltc/archlinux/ /dockerfile/)

  # Arch Linux baseline docker container
  
  # Generated on Sat Mar 19 14:26:28 GMT 2016 using code in this GitHub repo:
  
  # https://github.com/greyltc/docker-archlinux
  
  FROM scratch
  
  MAINTAINER Grey Christoforo <grey@christoforo.net>
  
  
  
  # copy in super minimal root filesystem archive
  
  ADD archlinux.tar.xz /
  
  
  
  # perform initial container setup tasks
  
  RUN setup-arch-docker-container
  
  
  
  # this allows the system profile to be sourced at every shell
  
  ENV ENV /etc/profile

• Raspberry crosscompilation in Eclipse

  27 juin 2018, par gogoer

  I want to compile an application for Raspberry in Eclipse (in windows). I installed SysGCC, configured Eclipse for crosscompiling. And if I create something like "Hello world" - everything is ok. Eclipse creates binaries which wonderfully works on Raspberry.
  But i need use FFMPEG libraries in my application . Here the minimal code of application :

  #include <libavcodec></libavcodec>avcodec.h>
  
  #include <libavformat></libavformat>avformat.h>
  
  #include <libswscale></libswscale>swscale.h>
  
  
  
  int main(void) {
  
      av_register_all();
  
      return EXIT_SUCCESS;
  
  }

  I added libraries in project config. Project compiles good, but linker gives a lot of errors :

  C:\SysGCC\Raspberry\arm-linux-gnueabihf\sysroot\usr\local\lib\libavcodec.a(aaccoder.o): In function `quantize_and_encode_band_cost_template':
  
  /usr/src/ffmpeg/libavcodec/aacenc_quantization.h:108: undefined reference to `cbrtf'
  
  /usr/src/ffmpeg/libavcodec/aacenc_quantization.h:108: undefined reference to `cbrtf'
  
  /usr/src/ffmpeg/libavcodec/aacenc_quantization.h:108: undefined reference to `cbrtf'
  
  /usr/src/ffmpeg/libavcodec/aacenc_quantization.h:108: undefined reference to `cbrtf'
  
  C:\SysGCC\Raspberry\arm-linux-gnueabihf\sysroot\usr\local\lib\libavcodec.a(aacenc_is.o): In function `quantize_and_encode_band_cost_template':
  
  /usr/src/ffmpeg/libavcodec/aacenc_quantization.h:108: undefined reference to `cbrtf'
  
  C:\SysGCC\Raspberry\arm-linux-gnueabihf\sysroot\usr\local\lib\libavcodec.a(aacenc_is.o):/usr/src/ffmpeg/libavcodec/aacenc_quantization.h:108: more undefined references to `cbrtf' follow
  
  C:\SysGCC\Raspberry\arm-linux-gnueabihf\sysroot\usr\local\lib\libavcodec.a(adx.o): In function `ff_adx_calculate_coeffs':
  
  /usr/src/ffmpeg/libavcodec/adx.c:30: undefined reference to `cos'
  
  /usr/src/ffmpeg/libavcodec/adx.c:34: undefined reference to `lrintf'
  
  /usr/src/ffmpeg/libavcodec/adx.c:35: undefined reference to `lrintf'
  
  /usr/src/ffmpeg/libavcodec/adx.c:30: undefined reference to `cos'
  
  /usr/src/ffmpeg/libavcodec/adx.c:34: undefined reference to `lrintf'
  
  /usr/src/ffmpeg/libavcodec/adx.c:35: undefined reference to `lrintf'
  
  collect2.exe: error: ld returned 1 exit status
  
  make: *** [ffmpeg] Error 1
  
  
  
  02:21:24 Build Finished (took 8s.394ms)

  SOLVED :

  i used next command :

  arm-linux-gnueabihf-gcc -L"C:\SysGCC\Raspberry\arm-linux-gnueabihf\sysroot\usr\local\lib" -L"C:\SysGCC\Raspberry\arm-linux-gnueabihf\lib" -o "ffmpeg"  ./src/ffmpeg.o   -lc -lm -lpthread -lavformat -lavcodec -lswscale -lavutil -lavfilter -lavdevice -lswresample -lpostproc -ldl -lx264 -lgcc -lz

  where -lc -lm -lpthread -lavformat -lavcodec -lswscale -lavutil -lavfilter -lavdevice -lswresample -lpostproc -ldl -lx264 -lgcc -lz are libraries linker needs (maybe not all of them).
  please note that order is important.

• Error in ffmpeg conversion

  9 avril 2015, par Adam Mo.

  I have a VPS 1G RAM with CentOS 6 i386 minimal installed and installed ffmpeg by ffmpeginstaller.com to setup clipbucket 2.7 in the VPS.
  when I test the ffmpeg by this command :

  wget "http://mirrorblender.top-ix.org/peach/bigbuckbunny_movies/big_buck_bunny_720p_surround.avi"
  
  ffmpeg -i big_buck_bunny_720p_surround.avi -vcodec libx264 big_buck_bunny_720p_surround-H264.avi

  by following this tutorial I get error
  the output :

  ffmpeg version N-71343-g32e06c4-syslint Copyright (c) 2000-2015 the FFmpeg     developers
  
    built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-11)
  
    configuration: --prefix=/usr/local/cpffmpeg --enable-shared --enable-nonfree --enable-gpl --enable-pthreads --enable-libopencore-amrnb --enable-decoder=liba52 --enable-libopencore-amrwb --enable-libfaac --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --extra-cflags=-    I/usr/local/cpffmpeg/include/ --extra-ldflags=-L/usr/local/cpffmpeg/lib --enable-    version3 --extra-version=syslint
  
    libavutil      54. 22.101 / 54. 22.101
  
    libavcodec     56. 34.100 / 56. 34.100
  
    libavformat    56. 30.100 / 56. 30.100
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 13.101 /  5. 13.101
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Input #0, avi, from 'big_buck_bunny_720p_surround.avi':
  
    Metadata:
  
      encoder         : AVI-Mux GUI 1.17.7, Aug  8 2006  20:59:17
  
      JUNK            :
  
    Duration: 00:09:56.46, start: 0.000000, bitrate: 4456 kb/s
  
      Stream #0:0: Video: mpeg4 (Simple Profile) (FMP4 / 0x34504D46), yuv420p,     1280x720 [SAR 1:1 DAR 16:9], 4001 kb/s, 24 fps, 24 tbr, 24 tbn, 24 tbc
  
      Stream #0:1: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, 5.1(side), fltp, 448 kb/s
  
      Metadata:
  
        title           : BBB-Master
  
  [libx264 @ 0x9360de0] using SAR=1/1
  
  [libx264 @ 0x9360de0] using cpu capabilities: none!
  
  x264 [error]: malloc of size 5258784 failed
  
  Output #0, avi, to 'big_buck_bunny_720p_surround-H264.avi':
  
    Metadata:
  
      encoder         : AVI-Mux GUI 1.17.7, Aug  8 2006  20:59:17
  
      JUNK            :
  
      Stream #0:0: Video: h264, none, q=2-31, 128 kb/s, SAR 1:1 DAR 0:0, 24 fps
  
      Metadata:
  
        encoder         : Lavc56.34.100 libx264
  
      Stream #0:1: Audio: mp3, 0 channels, 128 kb/s
  
      Metadata:
  
        title           : BBB-Master
  
        encoder         : Lavc56.34.100 libmp3lame
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (libx264))
  
    Stream #0:1 -> #0:1 (ac3 (native) -> mp3 (libmp3lame))
  
  Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

  I don’t know what the problem, can any one help me ?