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• MediaElementJS Player + Reload HLS stream - Any Solution ?

  31 décembre 2018, par DiX

  How do I stop showing the Network Error message and just autoreload the player when the player lose the connections with the stream ?

  I am using an HLS stream for this player : MediaElementJS

  I found this solution in a blog but for me it is not the best option and can be difficult to set up a private proxy 24hs.
  This can be solved externally by running an in-app proxy. I have the player in a wrapper that also starts up an HTTPListener. Then instead of giving the MediaElement http://server.com/file.m3u8, I rewrite this URL to http://localhost:58392/http/80/server.com/file.m3u8. FFmpeg hits the proxy with requests and the proxy parses the URL from the request, gets the content and returns it to ffmpeg.

  This is my player configuration in js :

      <code class="echappe-js">&lt;script&gt;<br />
  
          $(&quot;video&quot;).mediaelementplayer({<br />
  
              features: [&quot;playpause&quot;, &quot;volume&quot;, &quot;progress&quot;, &quot;airplay&quot;, &quot;chromecast&quot;, &quot;fullscreen&quot;],<br />
  
              forceLive: true<br />
  
          });<br />
  
          playerObject = document.getElementById(&quot;player&quot;);<br />
  
      &lt;/script&gt;
  
  

• FFmpeg remove 2 sec from middle of video and concat the parts. Single line solution

  15 janvier 2019, par Aaron Broderick

  I have a video file that is 22 seconds long.
  I want to remove the segment from 10 seconds to 12 seconds.
  Then return a concatenated video file of seconds 1-10 and 12-22.

  I want to do this in a single FFmpeg command.

  This is the easy way

  Source
  https://www.labnol.org/internet/useful-ffmpeg-commands/28490/

  ffmpeg -i input.mp4 -ss 00:00:00.0 -codec copy -t 10 output_1.mp4

  and

  ffmpeg -i input.mp4 -ss 00:00:12.0 -codec copy -t 10 output_2.mp4

  then create an input file with all the source file names and run

  ffmpeg -f concat -i file-list.txt -c copy output.mp4

  But I’m looking for a one line solution

  Any help would be appreciated.

• ffmpeg encoding a video with time_base Not equal to framerate does not work in HML5 video players

  1er juillet 2019, par Gilgamesh22

  I have a time_base of 90000 with a frame rate of 30. I can generate a h264 video and have it work in VLC but this video does not work in the browser player. If I change the time_base to 30 It works fine.

  Note : I am changing the frame->pts appropriately to match the time_base.
  Note : Video does not have audio stream

  //header.h
  
  AVCodecContext *cctx;
  
  AVStream* stream;

  Here is the non working example code

  //source.cpp
  
  stream->time_base = { 1, 90000 };
  
  stream->r_frame_rate = { fps, 1 };
  
  stream->avg_frame_rate = { fps, 1 };
  
  
  
  cctx->codec_id = codecId;
  
  cctx->time_base = { 1 ,  90000 };
  
  cctx->framerate = { fps, 1 };
  
  
  
  // ...... 
  
  // add frame code later on timestamp are in millisecond
  
  frame->pts = (timestamp - startTimeStamp)* 90;

  Here is the working example code

  //source.cpp
  
  stream->time_base = { 1, fps};
  
  stream->r_frame_rate = { fps, 1 };
  
  stream->avg_frame_rate = { fps, 1 };
  
  
  
  cctx->codec_id = codecId;
  
  cctx->time_base = { 1 ,  fps};
  
  cctx->framerate = { fps, 1 };
  
  
  
  // ...... 
  
  //  add frame code timestamp are in millisecond
  
  frame->pts = (timestamp - startTimeStamp)/(1000/fps);

  Any ideas on why the second example works and the first does not in the HTML5 video player.