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• 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 need help forming a tee muxer to send in 2 social network simultaneously

  4 avril 2021, par Jintor

  I want to stream to youtube and twitter in 1 ffmpeg process

  


  i red this https://trac.ffmpeg.org/wiki/Creating%20multiple%20outputs

  


  I do this command

  


  /usr/bin/ffmpeg -re -i input.mp4 -deinterlace -c:v libx264 -pix_fmt yuv420p 
-preset veryfast -tune zerolatency -profile:v main -c:a aac -b:a 128k -ac 2 
-crf 19 -r 30 -g 60 -b:v 1369k -minrate 1369k -maxrate 1369k -bufsize 2738k 
-ar 44100 
-filter_complex "[0:v]split=2[s0]; [s0]scale=-2:1080[v0]" 
-map "[v0]" -map 0:a 
-f tee " [select='v:0,a':f=flv]rtmp://a.rtmp.youtube.com/live2/key | [select='v:0,a':f=flv]rtmps://va.pscp.tv:443/x/key "


  


  and I get in command line this

  


  [libx264 @ 0x55f7b71aae40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 AVX512
[libx264 @ 0x55f7b71aae40] profile Main, level 4.0, 4:2:0, 8-bit
[libx264 @ 0x55f7b71a8f40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 AVX512
[libx264 @ 0x55f7b71a8f40] profile Main, level 4.0, 4:2:0, 8-bit
[tee @ 0x55f7b71a6480] No option found near "0,a:f=flv]rtmp://a.rtmp.youtube.com/live2/r9yy-wtdf-rmkp-22qa-c9sb"
[tee @ 0x55f7b71a6480] Slave muxer #0 failed: Invalid argument, continuing with 1/2 slaves.
[tee @ 0x55f7b71a6480] No option found near "0,a:f=flv]rtmps://va.pscp.tv:443/x/v52px1yfiwuh"
[tee @ 0x55f7b71a6480] All tee outputs failed.
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
Error initializing output stream 0:1 -- 
[aac @ 0x55f7b722fd80] Qavg: 298.166
[aac @ 0x55f7b722fd80] 2 frames left in the queue on closing
Conversion failed!


  


  What is wrong with my command ?

  


• Anomalie #3082 (Nouveau) : Plugin Comments : Double définition de #forum

  1er novembre 2013, par jeanmarie grall

  il semble qu’avec la dist (3.0.11) et le plugin Comments (3.2.7), il y ait une double définition de l’ID forum dans les articles :
  une 1ère fois dans la dist > article.html (L55) puis dans le plugin > comments\inclure\forum.html (L3)
  La ligne en question :
  Du coup, ça provoque une erreur de validation HTML...

  Proposition de b_b : "Je pense qu’il serait "logique" de déplacer l’ancre en question dans inclure/forum de la dist pour fixer le bp. "