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  • doc/platform : drop reference to ffmpeg.zeranoe.com

    28 mars 2023, par Stefano Sabatini
    doc/platform : drop reference to ffmpeg.zeranoe.com

    It was closed in September 2020.
    

    Fix issue :
    
http://trac.ffmpeg.org/ticket/9734
    • [DH] doc/platform.texi

  • How can I extract bonus images from a tv show DVD using ffmpeg ?

    5 avril 2020, par Hatem

    I'm using MakeMKVcon to automate episodes extraction. It do the job, expect the metadata. I have to rename files manually. But the problem here is that I want to extract some bonus pictures slideshow from the ISO but no software can detect it. I can only display those images using VLC (using the ISO file).

    



    Do you have any idea how to do that ?

    



    Here's the ffmpeg -i output :

    



    $ ffmpeg -i /path/to/iso/file.ISO
ffmpeg version git-2020-03-24-7239254 Copyright (c) 2000-2020 the FFmpeg developers
  built with Apple clang version 11.0.0 (clang-1100.0.33.16)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD-7239254_1 --enable-shared --cc=clang --host-cflags=-fno-stack-check --host-ldflags= --enable-gpl --enable-libaom --enable-libmp3lame --enable-libopus --enable-libsnappy --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --disable-libjack --disable-indev=jack --enable-opencl --enable-videotoolbox --disable-htmlpages --enable-libfdk-aac --enable-nonfree
  libavutil      56. 42.101 / 56. 42.101
  libavcodec     58. 76.100 / 58. 76.100
  libavformat    58. 42.100 / 58. 42.100
  libavdevice    58.  9.103 / 58.  9.103
  libavfilter     7. 77.100 /  7. 77.100
  libswscale      5.  6.101 /  5.  6.101
  libswresample   3.  6.100 /  3.  6.100
  libpostproc    55.  6.100 / 55.  6.100
[mpeg @ 0x7f8111808200] Packet corrupt (stream = 4, dts = 2097152).
[mpeg @ 0x7f8111808200] stream 4 : no TS found at start of file, duration not set
[mpeg @ 0x7f8111808200] Could not find codec parameters for stream 4 (Audio: mp2, 0 channels): unspecified frame size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, mpeg, from '/path/to/iso/file.ISO':
  Duration: 00:24:21.47, start: 0.280000, bitrate: 40817 kb/s
    Stream #0:0[0x1bf]: Data: dvd_nav_packet
    Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, bt470bg, progressive), 720x576 [SAR 16:15 DAR 4:3], 25 fps, 25 tbr, 90k tbn, 50 tbc
    Side data:
      cpb: bitrate max/min/avg: 8000000/0/0 buffer size: 1835008 vbv_delay: N/A
    Stream #0:2[0x20]: Subtitle: dvd_subtitle
    Stream #0:3[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
    Stream #0:4[0x1d7]: Audio: mp2, 0 channels
At least one output file must be specified 


    


  • Compiled FFmpeg not accepting -c:v and -c:a

    13 mars 2020, par King Horse

    I compiled FFmpeg with libsrt, with the online compile guide. https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu & how to compile ffmpeg with enabling libsrt

    It seems to compile correctly.

    ffmpeg version N-96575-g843c24a Copyright (c) 2000-2020 the FFmpeg developers
    
built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
    
configuration: --prefix=/home/ubuntu/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/ubuntu/ffmpeg_build/include --extra-ldflags=-L/home/ubuntu/ffmpeg_build/lib --extra-libs='-lpthread -lm' --bindir=/home/ubuntu/bin --enable-gpl --enable-libaom --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libsrt --enable-nonfree
    
libavutil      56. 38.100 / 56. 38.100
    
libavcodec     58. 67.100 / 58. 67.100
    
libavformat    58. 37.100 / 58. 37.100
    
libavdevice    58.  9.103 / 58.  9.103
    
libavfilter     7. 72.100 /  7. 72.100
    
libswscale      5.  6.100 /  5.  6.100
    
libswresample   3.  6.100 /  3.  6.100
    
libpostproc    55.  6.100 / 55.  6.100

    But when running this command to convert a incoming SRT stream to HLS, it doesn’t know the -c:a command. When switching the order, it runs that it doesn’t know about the -c:v command.

    ffmpeg -re -i srt://0.0.0.0:25000?pkt_size=1316&mode=listener -c:a copy -c:v copy -strict -f hls -hls_time 4 -hls_playlist_type event stream.m3u8
    ~$ ffmpeg -re -i srt://0.0.0.0:25000?pkt_size=1316&mode=listener -c:a copy -c:v copy -strict -f hls -hls_time 4 -hls_playlist_type event stream.m3u8
    
[2] 9930
    
ffmpeg version N-96575-g843c24a Copyright (c) 2000-2020 the FFmpeg developers
    
  built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
    
  configuration: --prefix=/home/ubuntu/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/ubuntu/ffmpeg_build/include --extra-ldflags=-L/home/ubuntu/ffmpeg_build/lib --extra-libs='-lpthread -lm' --bindir=/home/ubuntu/bin --enable-gpl --enable-libaom --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libsrt --enable-nonfree
    
  libavutil      56. 38.100 / 56. 38.100
    
  libavcodec     58. 67.100 / 58. 67.100
    
  libavformat    58. 37.100 / 58. 37.100
    
  libavdevice    58.  9.103 / 58.  9.103
    
  libavfilter     7. 72.100 /  7. 72.100
    
  libswscale      5.  6.100 /  5.  6.100
    
  libswresample   3.  6.100 /  3.  6.100
    
  libpostproc    55.  6.100 / 55.  6.100
    
-c:a: command not found
    

    
[2]+  Stopped                 ffmpeg -re -i srt://0.0.0.0:25000?pkt_size=1316

    I have searched the issue, but I could not find anything similar.
    Does someone know what I have missed in the setup ?

    Everything is manually compiled through the guide, this was the final command I run to compile FFmpeg :

    cd ~/ffmpeg_sources && \
    
wget -O ffmpeg-snapshot.tar.bz2 https://ffmpeg.org/releases/ffmpeg-snapshot.tar.bz2 && \
    
tar xjvf ffmpeg-snapshot.tar.bz2 && \
    
cd ffmpeg && \
    
PATH="$HOME/bin:$PATH" PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure \
    
  --prefix="$HOME/ffmpeg_build" \
    
  --pkg-config-flags="--static" \
    
  --extra-cflags="-I$HOME/ffmpeg_build/include" \
    
  --extra-ldflags="-L$HOME/ffmpeg_build/lib" \
    
  --extra-libs="-lpthread -lm" \
    
  --bindir="$HOME/bin" \
    
  --enable-gpl \
    
  --enable-libaom \
    
  --enable-libass \
    
  --enable-libfdk-aac \
    
  --enable-libfreetype \
    
  --enable-libmp3lame \
    
  --enable-libopus \
    
  --enable-libvorbis \
    
  --enable-libvpx \
    
  --enable-libx264 \
    
  --enable-libx265 \
    
  --enable-libsrt \
    
  --enable-nonfree && \
    
PATH="$HOME/bin:$PATH" make && \
    
make install && \
    
hash -r

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