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• avformat/mov : base pcmC endianness on just the LSB

  4 février 2023, par Jan Ekström

  avformat/mov : base pcmC endianness on just the LSB
  As per 23003-5:2020, the rest of the bits are reserved, and thus
  
  in the future they may be utilized for something else.
  Quote :
  
  format_flags is a field of flags that modify the default PCM sample format.
  
  Undefined flags are reserved and shall be zero. The following flag is defined :
  
    0x01 indicates little-endian format. If not present, big-endian format is used.
  

  • [DH] libavformat/mov.c

• avformat/mpegts : Shuffle avio_seek

  7 mai 2020, par Michael Niedermayer

  avformat/mpegts : Shuffle avio_seek
  This avoids accessing an old, no longer valid buffer.
  
  Fixes : out of array access
  
  Fixes : crash_audio-2020
  Found-by : le wu <shoulewoba@gmail.com>
  
  Reviewed-by : Marton Balint <cus@passwd.hu>
  
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavformat/mpegts.c

• Trying to stream to multiple RTMPs with tee throws : Output file #0 does not contain any stream

  27 août 2020, par user33276346

  I'm trying to stream one file to multiple rtmps. The following command streams ok to one endpoint :

  


  ffmpeg -re -stream_loop 10 -i input.mp4 -c copy -f flv rtmps://x4t-myamsacc-usct.channel.media.azure.net:2935/live/x4t/x4t


  


  This one does not :

  


  ffmpeg -re -i input.mp4 -c copy -f tee "[f=flv]rtmps://x4t-myamsacc-usct.channel.media.azure.net:2935/live/x4t/x4t"


  


  Throws this error :

  


  Output file #0 does not contain any stream


  


  Once I can do it for one, I plan to do it for more. What could I be doing wrong ? This is the console log :

  


  ffmpeg version git-2020-08-24-3477feb Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 10.2.1 (GCC) 20200805
  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-libsrt --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-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --enable-librav1e --enable-libsvtav1 --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  libavutil      56. 58.100 / 56. 58.100
  libavcodec     58.101.100 / 58.101.100
  libavformat    58. 51.100 / 58. 51.100
  libavdevice    58. 11.101 / 58. 11.101
  libavfilter     7. 87.100 /  7. 87.100
  libswscale      5.  8.100 /  5.  8.100
  libswresample   3.  8.100 /  3.  8.100
  libpostproc    55.  8.100 / 55.  8.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isommp42
    creation_time   : 2018-07-13T08:13:55.000000Z
  Duration: 00:02:15.49, start: 0.000000, bitrate: 368 kb/s
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 239 kb/s, 30 fps, 30
tbr, 90k tbn, 60 tbc (default)
    Metadata:
      creation_time   : 2018-07-13T08:13:55.000000Z
      handler_name    : ISO Media file produced by Google Inc. Created on: 07/13/2018.
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
    Metadata:
      creation_time   : 2018-07-13T08:13:55.000000Z
      handler_name    : ISO Media file produced by Google Inc. Created on: 07/13/2018.
Output #0, tee, to '[f=flv]rtmps://x4t-myamsacc-usct.channel.media.azure.net:2935/live/x4t/x4t':
Output file #0 does not contain any stream