Recherche avancée

Sur d’autres sites (11380)

• FFMPEG Video not working on Social Media Platforms (Flutter-FFMPEG)

  29 avril 2022, par Raj Dhakad

  I am using Flutter-FFMPEG a Flutter library based on Mobile FFMPEG. I am creating a video from a list of .bmp images. The video works plays normally in devices media player on android or desktop.

  


  But when I tried to share that video on social media like say Instagram it says file format not supported.

  


  It didn't use to work on WhatsApp but after some googling, I made some changes and it works on WhatsApp and Youtube now but not on Instagram, Linkedin, etc.

  


  void _runFFmpeg() async {
    print('Run FFMPEG');
   
    var dir = await getApplicationDocumentsDirectory();
    var output = await getExternalStorageDirectory();
    String videoSize = '$ImageWidth:$ImageSize';
    print("${ImageWidth}x$ImageSize");
    var arguments = [
      "-y", // replace output file if it already exists
      "-i", "${output.path}/frame_%d.bmp",
       
      "-s", '${ImageWidth}x$ImageSize',
      "-framerate", "30", // framrate
      
      "-c:v", "libvpx",
      
      '-ab', '128k',
      '-ar', '44100',
      '-strict', 'experimental',
     
      "-vcodec", "libx264",

      "-pixel_format", "yuv420p",

      "-preset", "ultrafast",

      "-tune", "animation",

      "${output.path}/test.mp4"
    ];
   
    await _flutterFFmpeg.executeWithArguments(arguments).then((rc) {
      print('Process done with $rc');
      
    });


  


  


  


  • The plugin I am using (Flutter-FFMPEG) didn't support libx264

    


  


  • I tried using '-profile:v' to baseline but that gives an error, saying Error setting profile to baseline.

    


  


  • Also, I tried to first make a .webm file and then convert that to mp4. I was also able to use '-profile:v' when converting .webm to mp4 and gave no error but the output video didn't work on Social Media platforms.

    


  


  


  


• ffmpeg HLS timing broken because of broken .ts file

  4 août 2019, par Tammys Head

  So I’ve got .m3u8 file which looks like this :

  #EXTM3U
  
  #EXT-X-TARGETDURATION:10
  
  #EXT-X-ALLOW-CACHE:YES
  
  #EXT-X-PLAYLIST-TYPE:VOD
  
  #EXT-X-VERSION:3
  
  #EXT-X-MEDIA-SEQUENCE:1
  
  #EXTINF:6.006,
  
  seg-1-v1-a1.ts
  
  #EXTINF:4.004,
  
  seg-2-v1-a1.ts
  
  #EXTINF:10.010,
  
  eg-3-v1-a1.ts
  
  #EXTINF:10.010,
  
  seg-4-v1-a1.ts
  
  #EXTINF:10.010,
  
  seg-5-v1-a1.ts
  
  #EXT-X-ENDLIST

  and I’ve got all the segment files in one folder.
  The problem is that "seg-4-v1-a1.ts" is broken (only 5 MB where it should be 10MB) and when I try to transform them to an mp4 with the command ffmpeg -i "M3U8URLS.mux" -c copy output.mp4, I get a bad sync of the audio and the video.

  The output of ffmpeg is

  [hls,applehttp @ 000002e276a868a0] Opening 'crypto:seg-1-v1-a1.ts' for reading
  
  [hls,applehttp @ 000002e276a868a0] Opening 'crypto:seg-2-v1-a1.ts' for reading
  
  [hls,applehttp @ 000002e276a868a0] Opening 'crypto:seg-3-v1-a1.ts' for reading
  
  [hls,applehttp @ 000002e276a868a0] Opening 'crypto:seg-4-v1-a1.ts' for reading
  
  [mpegts @ 00000204393ed020] PES packet size mismatch
  
  [hls,applehttp @ 000002e276a868a0] Opening 'crypto:seg-5-v1-a1.ts' for reading
  
  frame=35130 fps=1927 q=-1.0 Lsize= 1017088kB time=00:00:40.12 bitrate=5667.5kbits/s speed=80.6x

  How can I tell ffmpeg that it should stay synced based on the #EXTINF info ?

• FFMPEG Android, android/arm : No such file or directory while compiling the ffmpeg for android with ndk10

  10 juin 2016, par Prabhat

  I am compiling the ffmpeg library i am facing some issues while compiling this.

  I follow the steps of compilation form here.But i am failed to compile. The issues are as below.

  WARNING: /home/prabhat/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86/bin/arm-linux-androideabi-pkg-config not found, library detection may fail.
  
      libavcodec/bsf_list.c is unchanged
  
      libavformat/protocol_list.c is unchanged
  
      common.mak:26: *** unterminated call to function `foreach': missing `)'.  Stop.
  
      common.mak:26: *** unterminated call to function `foreach': missing `)'.  Stop.
  
      common.mak:26: *** unterminated call to function `foreach': missing `)'.  Stop.
  
      sumit@sumit-H81M-S:~/android-ndk-r10e/sources/ffmpeg$