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• avcodec/cbs_h2645 : use the fixed() macro for forbidden_zero_bit

  17 avril 2019, par James Almer

  avcodec/cbs_h2645 : use the fixed() macro for forbidden_zero_bit
  This follows the spec definition, and removes a field from the relevant
  
  structs.
  Reviewed-by : Mark Thompson <sw@jkqxz.net>
  
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] libavcodec/cbs_h264.h
  • [DH] libavcodec/cbs_h264_syntax_template.c
  • [DH] libavcodec/cbs_h265.h
  • [DH] libavcodec/cbs_h265_syntax_template.c

• Why the result of FFmpeg capture process has no audio to create a webm file ?

  23 mars 2019, par RAM

  The result of my bellow FFmpeg command has no audio (is silent) :

  ffmpeg -f gdigrab -framerate 30 -i desktop -video_size 720x480 -c:v libvpx-vp9 -c:a libopus -b:v 1M -b:a 128K -auto-alt-ref 0 -crf 10 -preset ultrafast output.webm

  But this one has audio :

  ffmpeg -f gdigrab -i desktop -f dshow -i audio="Microphone (4- High Definition Audio Device)" output.mkv

  • How should I capture as webm file by using libopus or libvorbis ?
  • What is the problem in my first command ?

  ---

  My FFmpeg version :

  ffmpeg version N-93439-gb073fb9eea Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 8.2.1 (GCC) 20190212
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg 
  
                   --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab 
  
                   --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
  
    libavutil      56. 26.100 / 56. 26.100
  
    libavcodec     58. 47.105 / 58. 47.105
  
    libavformat    58. 26.101 / 58. 26.101
  
    libavdevice    58.  7.100 / 58.  7.100
  
    libavfilter     7. 48.100 /  7. 48.100
  
    libswscale      5.  4.100 /  5.  4.100
  
    libswresample   3.  4.100 /  3.  4.100
  
    libpostproc    55.  4.100 / 55.  4.100

• options_table : Remove a now unnecessary include of config.h

  3 novembre 2016, par Martin Storsjö

  options_table : Remove a now unnecessary include of config.h
  The include of config.h was added in 2012 in 1d9c2dc8, due to
  
  the use of CONFIG_SNOW_ENCODER ifdefs within options_table.h.
  
  When the snow codec was dropped later (in a0c5917f8 in 2013),
  
  this include no longer served any purpose.
  options_table.h is included in builds for the host as well, when
  
  building documentation. config.h should not be included in code
  
  that is built for the host, since it can contain workarounds
  
  for the target compiler/environment, like adding a missing define
  
  of restrict, defining getenv(x) to NULL for environments that lack
  
  getenv.
  The seemingly innocent include reordering in 2025d37871 broke
  
  builds that have getenv(x) defined to NULL in config.h (Windows CE
  
  and Windows Phone/RT), since libavcodec/options_table.h include
  
  config.h, while libavformat/options_table.h end up bringing in
  
  more system headers, and those system headers can contain a proper
  
  definition of getenv, which clash with the getenv define in config.h.
  
  This was avoided earlier as long as libavformat/options_table.h (or
  
  avformat.h) was included before libavcodec/options_table.h.
  This fixes builds for Windows Phone/RT and CE.
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DBH] libavcodec/options_table.h