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• lavfi/af_adeclick : fix double free after ff_filter_frame fail

  19 août 2019, par Jun Zhao

  lavfi/af_adeclick : fix double free after ff_filter_frame fail
  ff_filter_frame fail will free the frame, so we just returen after this
  
  function fail.
  Reviewed-by : Paul B Mahol <onemda@gmail.com>
  
  Signed-off-by : Jun Zhao <barryjzhao@tencent.com>
  

  • [DH] libavfilter/af_adeclick.c

• ffmpeg video editor library is free to use in android ?

  7 juillet 2015, par Rank Mayur

  I am developing video editor app. and i go through ffmpeg library and it’s demo. It is really nice to use. but my question is it free to use ? and if not then is there any other way for video editor like crop video, replace audio, etc.

• Building A livestreaming server like youtube from scratch

  9 décembre 2022, par Dipo Ahmed

  I am trying to build a live streaming server like youtube where I can watch the video live or if I want to I can play the video from any duration I want.

  


  What I have tried so far.
I have built a node js WebSocket server where I push the video blob that I receive from the browser via MediaRecorder API every 2 seconds. This blob is then getting converted to hls by a ffmpeg process which generates 2 seconds *.ts files and a .m3u8 file which I am playing with video.js in browser.

  


  This is my ffmpeg command

  


   spawn('ffmpeg', [
        '-i', '-',
        // '-re',
        '-fflags', '+igndts',

        '-vcodec', 'h264',
        '-acodec', 'aac',

        '-preset', 'slow',
        '-crf', '22',
        // You can also use QP value to adjust output stream quality, e.g.: 
        // '-qp', '0',
        // You can also specify output target bitrate directly, e.g.:
        '-b:v', '1500K',
        '-b:a', '128K', // Audio bitrate

        '-f', 'hls',
        '-hls_time', '1',
        // '-hls_playlist_type', 'vod',
        '-hls_list_size', '2',
        '-hls_flags', 'independent_segments',
        '-hls_segment_type', 'mpegts',
        '-hls_segment_filename', `${path}/stream%02d.ts`, `${path}/stream.m3u8`,
    ]);


  


  The problem is that the video js player duration is not updating like in youtube where the video duration increases every second.

  


  Any direction will be appreciated. Please tell me if my approach is wrong and what needs to be learned for me to build this system.