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• Reading file stream from Google Cloud Storage to ffmpeg (using fluent-ffmpeg)

  27 juillet 2018, par ekuusi

  I’m trying to run ffmpeg on a NodeJS backend with fluent-ffmpeg, reading input files from Google Cloud Storage. Everything works fine if I download the file first :

  const file = storage
  
      .bucket('example_bucket')
  
      .file('examplefile.mp4');
  
  
  
  file.download({destination: 'test.mp4'}, (err) => {
  
  
  
      let command = ffmpeg()
  
      .input('test.mp4')
  
      .duration(10)
  
      .format('mp4');
  
  
  
      command.save('test_out.mp4');
  
  
  
  });
  
  
  
  res.json([{
  
      message: 'Command sent!'
  
  }]);

  But if I try to use a readable stream as the input, it fails :

  const file = storage
  
      .bucket('example_bucket')
  
      .file('examplefile.mp4');
  
  
  
  
  
  var filestream = file.createReadStream()
  
  
  
  let command = ffmpeg()
  
      .input(filestream)
  
      .duration(10)
  
      .format('mp4');
  
  
  
  
  
  command.save('test_out.mp4');
  
  });
  
  
  
  res.json([{
  
      message: 'Command sent!'
  
  }]);

  Here is the full output of ffmpeg when trying to do the conversion. It seems to read the details of the file fine but for some reason it fails, saying "Cannot process video : ffmpeg exited with code 1 : pipe:0 : Invalid data found when processing input"

  Spawned Ffmpeg with command: ffmpeg -i pipe:0 -y -t 10 -f mp4 test_out.mp4
  
  Stderr output: ffmpeg version 4.0.1 Copyright (c) 2000-2018 the FFmpeg developers
  
  Stderr output:   built with Apple LLVM version 9.1.0 (clang-902.0.39.2)
  
  Stderr output:   configuration: --prefix=/opt/local --enable-swscale --enable-avfilter --enable-avresample --enable-libmp3lame --enable-libvorbis --enable-libopus --enable-librsvg --enable-libtheora --enable-libopenjpeg --enable-libmodplug --enable-libvpx --enable-libsoxr --enable-libspeex --enable-libass --enable-libbluray --enable-lzma --enable-gnutls --enable-fontconfig --enable-libfreetype --enable-libfribidi --disable-libjack --disable-libopencore-amrnb --disable-libopencore-amrwb --disable-libxcb --disable-libxcb-shm --disable-libxcb-xfixes --disable-indev=jack --enable-opencl --disable-outdev=xv --enable-audiotoolbox --enable-videotoolbox --enable-sdl2 --mandir=/opt/local/share/man --enable-shared --enable-pthreads --cc=/usr/bin/clang --arch=x86_64 --enable-x86asm --enable-libx265 --enable-gpl --enable-postproc --enable-libx264 --enable-libxvid
  
  Stderr output:   libavutil      56. 14.100 / 56. 14.100
  
  Stderr output:   libavcodec     58. 18.100 / 58. 18.100
  
  Stderr output:   libavformat    58. 12.100 / 58. 12.100
  
  Stderr output:   libavdevice    58.  3.100 / 58.  3.100
  
  Stderr output:   libavfilter     7. 16.100 /  7. 16.100
  
  Stderr output:   libavresample   4.  0.  0 /  4.  0.  0
  
  Stderr output:   libswscale      5.  1.100 /  5.  1.100
  
  Stderr output:   libswresample   3.  1.100 /  3.  1.100
  
  Stderr output:   libpostproc    55.  1.100 / 55.  1.100
  
  Stderr output: [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fb6db80a200] stream 2, offset 0x30: partial file
  
  Stderr output: [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fb6db80a200] Could not find codec parameters for stream 0 (Video: h264 (avc1 / 0x31637661), none, 1920x1080, 4647 kb/s): unspecified pixel format
  
  Stderr output: Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
  Stderr output: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'pipe:0':
  
  Stderr output:   Metadata:
  
  Stderr output:     major_brand     : isom
  
  Stderr output:     minor_version   : 512
  
  Stderr output:     compatible_brands: isomiso2avc1mp41
  
  Stderr output:     encoder         : Lavf58.12.100
  
  Stderr output:     location-eng    : +60.2121+024.8754/
  
  Stderr output:     location        : +60.2121+024.8754/
  
  Stderr output:   Duration: 00:02:23.13, bitrate: N/A
  
  Stderr output:     Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), none, 1920x1080, 4647 kb/s, SAR 1:1 DAR 16:9, 59.94 fps, 59.94 tbr, 60k tbn, 120k tbc (default)
  
  Stderr output:     Metadata:
  
  Stderr output:       handler_name    : VideoHandler
  
  Stderr output:     Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
  
  Stderr output:     Metadata:
  
  Stderr output:       handler_name    : SoundHandler
  
  Stderr output:     Stream #0:2(eng): Data: none (tmcd / 0x64636D74)
  
  Stderr output:     Metadata:
  
  Stderr output:       handler_name    : TimeCodeHandler
  
  Stderr output: Stream mapping:
  
  Input is aac (mp4a / 0x6134706D) audio with h264 (avc1 / 0x31637661) video
  
  Stderr output:   Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
  Stderr output:   Stream #0:1 -> #0:1 (aac (native) -> aac (native))
  
  Stderr output: [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fb6db80a200] stream 0, offset 0x34: partial file
  
  Stderr output: pipe:0: Invalid data found when processing input
  
  Stderr output: Cannot determine format of input stream 0:0 after EOF
  
  Stderr output: Error marking filters as finished
  
  Stderr output: Conversion failed!
  
  Stderr output: 
  
  Cannot process video: ffmpeg exited with code 1: pipe:0: Invalid data found when processing input
  
  Cannot determine format of input stream 0:0 after EOF
  
  Error marking filters as finished
  
  Conversion failed!

• Is there a way to download FB video like the way youtube-dl does using ffmpeg [duplicate]

  20 avril 2018, par Wayne

  This question already has an answer here :

  • How can I download a video from Facebook using GraphAPI ?
    
    4 answers
    

  I have a simple vba UI that downloads youtube video using youtube-dl in ffmpeg.

  Is there a similar way to be able to download fb public video using ffmpeg ?

  One user request for this feature and I need a direction to start with.

  Google doesn’t seem to have relevant reference or perhaps I am using wrong keyword.

  Any directional information would be highly appreciated.

  Thanks

• Recording transport stream to file in ffmpeg

  9 juillet 2020, par Neil Bernard

  I'm streaming a dvb-t mux and I want to dump it to file using ffmpeg on another PC.

  


  Here is the command :

  


  ffmpeg -i rtp ://192.168.1.93:20000 -acodec copy -vcodec copy d34_tw.ts

  


  For some reason though its only saving 1 video and 1 audio random pid ? not the whole TS ?

  


  Thoughts ?

  


  Neil