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• lavf/dashenc : Write media trailers when DASH trailer is written.

  29 novembre 2018, par Andrey Semashev

  lavf/dashenc : Write media trailers when DASH trailer is written.
  This commit ensures that all (potentially, long) filesystem activity is
  
  performed when the user calls av_write_trailer on the DASH libavformat
  
  context, not when freeing the context. Also, this defers media segment
  
  deletion until after the media trailers are written.
  

  • [DH] libavformat/dashenc.c

• ffmpeg or MP4box how to convert video to universal playable Mpeg-DASH or HLS

  17 mars 2021, par Jintor

  What is the "good" way to encode (from any format like webm, rtmp) to UNIVERSALLY PLAYABLE hls or dash format ???

  


  I see tons of talks about HLS and MPEG-DASH with video tag that looks like this

  


  <video width="90%" height="669" controls="controls"> <source src="index.m3u8" type="application/x-mpegURL"> </source></video>&#xA;

  


  but what is the good command in FFMPEG ?

  


  when I do this

  


  ffmpeg -i file.webm  -acodec aac -vcodec libx264 -movflags faststart -s 640x360 -start_number 0 -hls_time 10 -hls_list_size 0 -f hls index.m3u8


  


  it's playable ONLY in chrome :(

  


  but I need it to be playable in safari, firefox, opera, etc

  


  I recenlty viewed talks about MP4box, what would be the best line to be able to convert any source to a universal playable stream ?

  


• Is there any way to resume live h264 playback (client rejoin) using the h.264 codec ?

  22 février 2021, par Ice

  Currently, I'm having a bit of an issue with the MediaSource API for resuming live h264 playback.
My server-side code will keep the first packet from FFmpeg, then dispatch it to clients. However, this works well but raises an issue.

  


  When I restart the stream and it dispatches to the client(s), it goes as expected and this is the result I expect when a client disconnects then has to reconnect to the stream, is the aforementioned result

  


  However, if I were to rejoin the stream, I get this as the result

  


  Also, FFMpeg data is being sent to the client in the picture above, it's just not rendering it for some reason.

  


  Here's my function for playing audio/video frames that I get from the server.

  


  private _playFrame(type: 0 | 1) {
    const src = type === 0 ? this.audioSource : this.videoSource;
    if (!src || src.updating) return;
    const queue = type === 0 ? this.audioFrameQueue : this.videoFrameQueue;
    src.appendBuffer(queue.shift());
    if (this.video.src && this.video.paused) this.video.play().then(() => null);
}