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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/DASH : duration or timestamp out of range for mov/mp4 format [closed]

  7 juin, par mike

  I'm trying to convert a aac stream to dash. The issue is that I get a lot of errors as below(though it seems to segment it into multiple files but I get errors on the player too). The question is why do I get these errors and how can I fix it ? If I simply convert "copy" it into to a single mp4 file it works without error.

  



      ffmpeg -i  "a.mkv" -y -map  0:1 -c:0 copy -min_seg_duration 1000000 
-use_timeline 1 -use_template 1 -init_seg_name init.mp4s 
-media_seg_name  "\$Number\$.mp4s" -adaptation_sets "id=1,streams=0"
-remove_at_exit 0  -f dash -dash 1 
"out/stream.mpd" -loglevel error 


  



  Output

  



  [mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 40475608 is out of range for mov/mp4 format
[mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 40764376 is out of range for mov/mp4 format
[mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 40860664 is out of range for mov/mp4 format
[mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 41149432 is out of range for mov/mp4 format
[mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 41390056 is out of range for mov/mp4 format
[mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 41823208 is out of range for mov/mp4 format


  



  Copy to a single MP4 works just fine
 ffmpeg -i "a.mkv" -y -map 0:1 -c:0 copy -f mp4 -dash 1 "out/out.mp4" -loglevel error

  



  Probe

  



  ffprobe a.mkv
ffprobe version 3.4 Copyright (c) 2007-2017 the FFmpeg developers
  built with Apple LLVM version 9.0.0 (clang-900.0.37)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/3.4 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
Input #0, matroska,webm, from 'a.mkv':
  Metadata:
    encoder         : libebml v1.3.1 + libmatroska v1.4.2
    creation_time   : 2017-03-11T02:56:50.000000Z
  Duration: 02:12:52.39, start: 0.000000, bitrate: 740 kb/s
    Chapter #0:0: start 0.000000, end 520.270000
    Metadata:
      title           : 00:00:00.000
    Chapter #0:1: start 520.270000, end 1135.718000
    Metadata:
      title           : 00:08:40.270
    Chapter #0:2: start 1135.718000, end 1703.660000
    Metadata:
      title           : 00:18:55.718
    Chapter #0:3: start 1703.660000, end 2314.187000
    Metadata:
      title           : 00:28:23.660
    Chapter #0:4: start 2314.187000, end 2888.594000
    Metadata:
      title           : 00:38:34.187
    Chapter #0:5: start 2888.594000, end 3499.246000
    Metadata:
      title           : 00:48:08.594
    Chapter #0:6: start 3499.246000, end 4154.692000
    Metadata:
      title           : 00:58:19.246
    Chapter #0:7: start 4154.692000, end 4646.392000
    Metadata:
      title           : 01:09:14.692
    Chapter #0:8: start 4646.392000, end 5373.660000
    Metadata:
      title           : 01:17:26.392
    Chapter #0:9: start 5373.660000, end 5882.085000
    Metadata:
      title           : 01:29:33.660
    Chapter #0:10: start 5882.085000, end 6627.871000
    Metadata:
      title           : 01:38:02.085
    Chapter #0:11: start 6627.871000, end 7144.471000
    Metadata:
      title           : 01:50:27.871
    Chapter #0:12: start 7144.471000, end 7451.944000
    Metadata:
      title           : 01:59:04.471
    Chapter #0:13: start 7451.944000, end 7972.394000
    Metadata:
      title           : 02:04:11.944
    Stream #0:0(eng): Video: h264 (High), yuv420p(tv, bt709/unknown/unknown, progressive), 720x300 [SAR 1:1 DAR 12:5], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
    Metadata:
      title           : X264
      BPS             : 623765
      BPS-eng         : 623765
      DURATION        : 02:12:52.311000000
      DURATION-eng    : 02:12:52.311000000
      NUMBER_OF_FRAMES: 191144
      NUMBER_OF_FRAMES-eng: 191144
      NUMBER_OF_BYTES : 621606403
      NUMBER_OF_BYTES-eng: 621606403
      _STATISTICS_WRITING_APP: mkvmerge v8.3.0 ('Over the Horizon') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v8.3.0 ('Over the Horizon') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2017-03-11 02:56:50
      _STATISTICS_WRITING_DATE_UTC-eng: 2017-03-11 02:56:50
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:1(eng): Audio: aac (LC), 48000 Hz, stereo, fltp (default)
    Metadata:
      BPS             : 114797
      BPS-eng         : 114797
      DURATION        : 02:12:52.394000000
      DURATION-eng    : 02:12:52.394000000
      NUMBER_OF_FRAMES: 373706
      NUMBER_OF_FRAMES-eng: 373706
      NUMBER_OF_BYTES : 114401387
      NUMBER_OF_BYTES-eng: 114401387
      _STATISTICS_WRITING_APP: mkvmerge v8.3.0 ('Over the Horizon') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v8.3.0 ('Over the Horizon') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2017-03-11 02:56:50
      _STATISTICS_WRITING_DATE_UTC-eng: 2017-03-11 02:56:50
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES


  



  Shaka debug

  



  Assertion failed: This should be an update of the last segment in a period
shaka.media.SegmentIndex.merge @ segment_index.js:153
shaka.dash.SegmentTemplate.createStream @ segment_template.js:82
shaka.dash.DashParser.parseRepresentation_ @ dash_parser.js:1080
shaka.dash.DashParser.parseAdaptationSet_ @ dash_parser.js:978
shaka.dash.DashParser.parsePeriod_ @ dash_parser.js:722
shaka.dash.DashParser.parsePeriods_ @ dash_parser.js:626
shaka.dash.DashParser.processManifest_ @ dash_parser.js:520
(anonymous) @ dash_parser.js:431
Promise resolved (async)
shaka.dash.DashParser.parseManifest_ @ dash_parser.js:430
(anonymous) @ dash_parser.js:397
Promise resolved (async)
shaka.dash.DashParser.requestManifest_ @ dash_parser.js:390
shaka.dash.DashParser.onUpdate_ @ dash_parser.js:1161
setTimeout (async)
shaka.dash.DashParser.setUpdateTimer_ @ dash_parser.js:1209
(anonymous) @ dash_parser.js:331
Promise resolved (async)
shaka.dash.DashParser.start @ dash_parser.js:329
(anonymous) @ player.js:555
Promise resolved (async)
shaka.util.CancelableChain.then @ cancelable_chain.js:72
shaka.Player.load @ player.js:499
initPlayer @ ?x=149&y=88&q=http%3A%2F%2Flocalhost%3A8080%2Fmeta%2F%3FbucketID%3D%2FVolumes%2FTV%2FFa%26channelID%3D%2FVolumes%2FTV%26containerID%3D%2FUsers%2F%2Fbrev%%2FL1ZvbHVtZXMvVFYvRmFudGFzdGljLkJlYXN0cy5hbmQuV2hlcmUudG8uRmluZC5UaGVtLjIwMTYuQkRSaXAueDI2NC1TUEFSS1MvYS5ta3Y%2F97M4TS6IqnQ.mpd:392
463segment_index.js:145 Refusing to rewrite original references on update!
shaka.media.SegmentIndex.merge @ segment_index.js:145
shaka.dash.SegmentTemplate.createStream @ segment_template.js:82
shaka.dash.DashParser.parseRepresentation_ @ dash_parser.js:1080
shaka.dash.DashParser.parseAdaptationSet_ @ dash_parser.js:978
shaka.dash.DashParser.parsePeriod_ @ dash_parser.js:722
shaka.dash.DashParser.parsePeriods_ @ dash_parser.js:626
shaka.dash.DashParser.processManifest_ @ dash_parser.js:520
(anonymous) @ dash_parser.js:431
Promise resolved (async)
shaka.dash.DashParser.parseManifest_ @ dash_parser.js:430
(anonymous) @ dash_parser.js:397
Promise resolved (async)
shaka.dash.DashParser.requestManifest_ @ dash_parser.js:390
shaka.dash.DashParser.onUpdate_ @ dash_parser.js:1161
setTimeout (async)
shaka.dash.DashParser.setUpdateTimer_ @ dash_parser.js:1209
(anonymous) @ dash_parser.js:331
Promise resolved (async)
shaka.dash.DashParser.start @ dash_parser.js:329
(anonymous) @ player.js:555
Promise resolved (async)
shaka.util.CancelableChain.then @ cancelable_chain.js:72
shaka.Player.load @ player.js:499
initPlayer @ ?x=149&y=88&q=http%3A%2F%2Flocalhost%3A8080%2Fmeta%2F%3FbucketID%3D%2FVolumes%2FTV%2FFa%26channelID%3D%2FVolumes%2FTV%26containerID%3D%2FUsers%2F%2Fbrev%%2FL1ZvbHVtZXMvVFYvRmFudGFzdGljLkJlYXN0cy5hbmQuV2hlcmUudG8uRmluZC5UaGVtLjIwMTYuQkRSaXAueDI2NC1TUEFSS1MvYS5ta3Y%2F97M4TS6IqnQ.mpd:392


  


• ffmpeg DASH - Include the stream's width and height (WxH) in the outputted filenames

  20 juillet 2022, par Jarad

  Given this :

  


  ffmpeg -i test.mp4 -c:a aac -c:v libx264 ^
-map v:0 -s:0 960x540 -b:v:0 800k ^
-map v:0 -s:1 320x170 -b:v:0 300k ^
-map 0:a ^
-f dash dash/master.mpd


  


  Produces this :

  


  chunk-stream0-00001.m4s
chunk-stream0-00002.m4s
...
chunk-stream0-00044.m4s
chunk-stream0-00045.m4s
chunk-stream1-00001.m4s
chunk-stream1-00002.m4s
...
chunk-stream1-00044.m4s
chunk-stream1-00045.m4s
chunk-stream2-00001.m4s
chunk-stream2-00002.m4s
...
chunk-stream2-00074.m4s
chunk-stream2-00075.m4s
init-stream0.m4s
init-stream1.m4s
init-stream2.m4s
master.mpd


  


  Inspection shows : ffprobe master.mpd

  


  Input #0, dash, from 'master.mpd':
  Duration: 00:06:11.00, start: -0.021333, bitrate: 0 kb/s
  Program 0
  Stream #0:0: Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 960x540 [SAR 1:1 DAR 16:9], 152 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
    Metadata:
      variant_bitrate : 300000
      id              : 0
  Stream #0:1: Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 320x170 [SAR 17:18 DAR 16:9], 21 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
    Metadata:
      variant_bitrate : 28227
      id              : 1
  Stream #0:2(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 110 kb/s (default)
    Metadata:
      variant_bitrate : 128000
      id              : 2


  


  I want output instead like this :

  


  chunk-stream0-960x540-00001.m4s
chunk-stream0-960x540-00002.m4s
...
chunk-stream0-960x540-00044.m4s
chunk-stream0-960x540-00045.m4s
chunk-stream1-320x170-00001.m4s
chunk-stream1-320x170-00002.m4s
...
chunk-stream1-320x170-00044.m4s
chunk-stream1-320x170-00045.m4s
chunk-stream2-???????-00001.m4s
chunk-stream2-???????-00002.m4s
...
chunk-stream2-???????-00074.m4s
chunk-stream2-???????-00075.m4s
init-stream0-960x540.m4s
init-stream1-320x170.m4s
init-stream2-???????.m4s
master.mpd


  


  where ??????? could be just audio or 48000hz or whatever.

  


  The Question

  


  Is there a way to include the stream's width and height (its size) in the outputted filenames from the command-line interface ? If no, how could it be accomplished using a shell script for example.