Recherche avancée

Sur d’autres sites (9271)

• movenc : Allow writing a DASH sidx atom at the start of files

  21 octobre 2014, par Martin Storsjö

  movenc : Allow writing a DASH sidx atom at the start of files
  This is mapped to the faststart flag (which in this case
  
  perhaps should be called "shift and write index at the
  
  start of the file"), which for fragmented files will
  
  write a sidx index at the start.
  When segmenting DASH into files, there’s usually one sidx
  
  at the start of each segment (although it’s not clear to me
  
  whether that actually is necessary). When storing all of it
  
  in one file, the MPD doesn’t necessarily need to describe
  
  the individual segments, but the offsets of the fragments can be
  
  fetched from one large sidx atom at the start of the file. This
  
  allows creating files for the DASH ISO BMFF on-demand profile.
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DBH] libavformat/movenc.c
  • [DBH] libavformat/movenc.h

• Fix writing first audio Cues in dash mode.

  9 octobre 2014, par Frank Galligan

  Fix writing first audio Cues in dash mode.
  In dahsmode Matroska is not writing the first Cluster for every
  
  audio stream in the Cues element.
  Signed-off-by : Frank Galligan <frankgalligan@gmail.com>
  
  Reviewed-by : Vignesh Venkatasubramanian <vigneshv@google.com>
  
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavformat/matroskaenc.c

• FFMPEG Mpeg-DASH what attributes options and flags do we need to make H264 playable .mpd universally playable

  22 mars 2021, par Jintor

  I want to encode from any source to a universally playable .mpd with h264 codec.

  


  Here my command

  


  /usr/bin/ffmpeg -re -i 1.webm -c:v libx264 -preset ultrafast 
-tune zerolatency -c:a aac -ac 2 -strict -2 -crf 18 -profile:v baseline 
-maxrate 1000k -pix_fmt yuv420p -flags -global_header -streaming 1 
-use_template 1 -use_timeline 0 -seg_duration 2 -remove_at_exit 1 
-f dash index.mpd


  


  but with dash.js the log says

  


  dash.js videoCodec (video/mp4;codecs="avc1") is not supported.


  


  **EXTRA NOTE : When using -c:v libx264 and output in HLS .m3u8 —> it's working in all browsers

  


  HTML with dash.js

  


  <code class="echappe-js">&lt;script src=&quot;http://cdn.dashjs.org/latest/dash.all.min.js&quot;&gt;&lt;/script&gt;&#xA;    
  &#xA;    &lt;script&gt;&amp;#xA;    (function(){&amp;#xA;        var url = &quot;https://www.---domain--path-to.mpd&quot;;&amp;#xA;        var player = dashjs.MediaPlayer().create();&amp;#xA;        player.initialize(document.querySelector(&quot;#videoPlayer&quot;), url, true);&amp;#xA;player.updateSettings({&amp;#xA;            streaming: {&amp;#xA;                 lowLatencyEnabled: true, &amp;#xA;                 liveDelay: 4,&amp;#xA;                 liveCatchup: {&amp;#xA;                    minDrift: 0.02,&amp;#xA;                    maxDrift: 0,&amp;#xA;                    playbackRate: 0.5,&amp;#xA;                    latencyThreshold: 60    &amp;#xA;                  }&amp;#xA;            }&amp;#xA;        });&amp;#xA;    })();     &amp;#xA;    video = document.getElementById(&quot;videoPlayer&quot;);&amp;#xA;    video.addEventListener(&quot;loadedmetadata&quot;, function(){ video.muted = true; video.play(); }, false);&amp;#xA;    &lt;/script&gt;&#xA;
  

  


  I do have "-c:v libx264" but why dash.js sees avc1... I know that h264 have avc1, but how to fix this. Is it fixing the ffmpeg command or changing the player.initialize in the javascript