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• Where to store the .mpd file on django to play on a dash player ?

  3 janvier 2019, par enigmaVada

  I am trying to build a video player on django. I am using MPEG-DASH for adaptive streaming of the video file. I have chosen a sample video in the beginning. Then, using ffmpeg commands, I have encoded the video into 240p, 360p, 480p and 720p videos. Also have encoded audio separately.

  Then, using mp4box, I have generated the .mpd file. I have read that mpd files cannot be run from the local file system and need to be hosted on a server. I have a dash player setup as follows :

    
  
      
  
      
  
      <code class="echappe-js">&lt;script src=&quot;https://cdn.dashjs.org/latest/dash.all.min.js&quot;&gt;&lt;/script&gt;
  
         
     
  

  The url in the src field is a random manifest file that i used to test the player out. It works fine.

  Then, on my django project, I have created a media folder which stores the media files uploaded via a form(root included in settings.py).
  My question is where do i store the video, audio and .mpd file so that i can play them using the html code which resides in the templates folder. I have tried using the media url of .mpd file in the source but I am unable to play the video.

  Here is the generated mpd file for reference :

  <?xml version="1.0"?>
  
  
  
  <mpd xmlns="urn:mpeg:dash:schema:mpd:2011" minbuffertime="PT1.500S" type="static" mediapresentationduration="PT0H1M9.869S" maxsegmentduration="PT0H0M9.985S" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011,http://dashif.org/guidelines/dash264">
  
   <programinformation moreinformationurl="http://gpac.io">
  
    
  
   </programinformation>
  
  
  
   <period duration="PT0H1M9.869S">
  
    <adaptationset segmentalignment="true" lang="und" subsegmentalignment="true" subsegmentstartswithsap="1">
  
     <representation mimetype="audio/mp4" codecs="mp4a.40.2" audiosamplingrate="44100" startwithsap="1" bandwidth="130920">
  
      <audiochannelconfiguration schemeiduri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"></audiochannelconfiguration>
  
      <baseurl>sample_audio_dashinit.mp4</baseurl>
  
      <segmentbase indexrangeexact="true" indexrange="902-1017">
  
        <initialization range="0-901"></initialization>
  
      </segmentbase>
  
     </representation>
  
    </adaptationset>
  
    <adaptationset segmentalignment="true" group="1" maxwidth="426" maxheight="240" maxframerate="30" par="426:240" lang="und" subsegmentalignment="true" subsegmentstartswithsap="1">
  
     <representation mimetype="video/mp4" codecs="avc1.640015" width="426" height="240" framerate="30" sar="1:1" startwithsap="1" bandwidth="590708">
  
      <baseurl>sample_video_240_dashinit.mp4</baseurl>
  
      <segmentbase indexrangeexact="true" indexrange="914-1053">
  
        <initialization range="0-913"></initialization>
  
      </segmentbase>
  
     </representation>
  
    </adaptationset>
  
    <adaptationset segmentalignment="true" group="1" maxwidth="640" maxheight="480" maxframerate="30" par="4:3" lang="und" subsegmentalignment="true" subsegmentstartswithsap="1">
  
     <representation mimetype="video/mp4" codecs="avc1.64001E" width="480" height="360" framerate="30" sar="1:1" startwithsap="1" bandwidth="883873">
  
      <baseurl>sample_video_360_dashinit.mp4</baseurl>
  
      <segmentbase indexrangeexact="true" indexrange="914-1053">
  
        <initialization range="0-913"></initialization>
  
      </segmentbase>
  
     </representation>
  
     <representation mimetype="video/mp4" codecs="avc1.64001E" width="640" height="480" framerate="30" sar="1:1" startwithsap="1" bandwidth="1188712">
  
      <baseurl>sample_video_480_dashinit.mp4</baseurl>
  
      <segmentbase indexrangeexact="true" indexrange="913-1052">
  
        <initialization range="0-912"></initialization>
  
      </segmentbase>
  
     </representation>
  
    </adaptationset>
  
    <adaptationset segmentalignment="true" group="1" maxwidth="1280" maxheight="720" maxframerate="30" par="16:9" lang="und" subsegmentalignment="true" subsegmentstartswithsap="1">
  
     <representation mimetype="video/mp4" codecs="avc1.64001F" width="1280" height="720" framerate="30" sar="1:1" startwithsap="1" bandwidth="2365717">
  
      <baseurl>sample_video_720_dashinit.mp4</baseurl>
  
      <segmentbase indexrangeexact="true" indexrange="914-1053">
  
        <initialization range="0-913"></initialization>
  
      </segmentbase>
  
     </representation>
  
    </adaptationset>
  
   </period>
  
  </mpd>

• ffmpeg : add option stats_period

  21 décembre 2020, par Gyan Doshi

  ffmpeg : add option stats_period
  At present, progress stats are updated at a hardcoded interval of
  
  half a second. For long processes, this can lead to bloated
  
  logs and progress reports.
  Users can now set a custom period using option -stats_period
  
  Default is kept at 0.5 seconds.
  

  • [DH] doc/ffmpeg.texi
  • [DH] fftools/ffmpeg.c
  • [DH] fftools/ffmpeg.h
  • [DH] fftools/ffmpeg_opt.c

• How to cut the videos per every 2MB using FFMpeg

  5 mai 2017, par Krish

  Hi i have 20MB size video,I need to split this video as each part should be 2MB,
  For this i google it and found FFMpeg library for splitting videos.

  But this library splitting the videos based on time-limit suppose (00:00:02 to 00:00:06 seconds,Between this time period video splitted)

  My requirement is, I want to cut the video per every 2MB that’s what my exact requirement not based on time limit.

  I searched for this lot in google but i did not get solution can some one help me please.

  FFMpeg Command i used for splitting :-

  String cmd[] = new String[]{"-i", inputFileUrl, "-ss", "00:00:02", "-c", "copy", "-t", "00:00:06",
  
                  outputFileUrl};
  
          executeBinaryCommand(fFmpeg, cmd);
  
  
  
   public void executeBinaryCommand(FFmpeg ffmpeg, String[] command) {
  
  
  
          try {
  
  
  
              if (ffmpeg != null) {
  
  
  
                  ffmpeg.execute(command,
  
                          new ExecuteBinaryResponseHandler() {
  
  
  
                              @Override
  
                              public void onFailure(String response) {
  
                                  System.out.println("failure====>" + response.toString());
  
                              }
  
  
  
                              @Override
  
                              public void onSuccess(String response) {
  
                                  System.out.println("resposense====>" + response.toString());
  
                              }
  
  
  
                              @Override
  
                              public void onProgress(String response) {
  
                                  System.out.println("on progress");
  
                              }
  
  
  
                              @Override
  
                              public void onStart() {
  
                                  System.out.println("start");
  
                              }
  
  
  
                              @Override
  
                              public void onFinish() {
  
                                  System.out.println("Finish");
  
                              }
  
                          });
  
              }
  
          } catch (FFmpegCommandAlreadyRunningException exception) {
  
              exception.printStackTrace();
  
          }
  
      }