1369304 - Failed to play a webm video in nymag.com

Status: RESOLVED DUPLICATE of bug 868797

(Core :: Audio/Video: Playback, defect, P1)

Description

[Alfredo Yang (:alfredo)]

https://github.com/webcompat/web-bugs/issues/7112

Comment 1

[Alfredo Yang (:alfredo)]

Return error at:

   frame #0: 0x0000000105d0c49c XUL`mozilla::WebMDemuxer::DemuxPacket(this=0x000000012a844800, aType=kAudioTrack, aPacket=0x00007000116f10c8) at WebMDemuxer.cpp:915
   912 	    nestegg_read_reset(Context(aType));
   913 	    return NS_ERROR_DOM_MEDIA_END_OF_STREAM;
   914 	  } else if (r < 0) {
-> 915 	    return NS_ERROR_DOM_MEDIA_DEMUXER_ERR;
   916 	  }
   917
   918 	  unsigned int track = 0;

Comment 2

[Alfredo Yang (:alfredo)]

It failed at nestegg:

* thread #101, name = 'MediaPD~oder #2', stop reason = step over
    frame #0: 0x0000000107496473 XUL`ne_read_block(ctx=0x000000012d440380, block_id=163, block_size=5, data=0x00007000116f1040) at nestegg.c:1554
   1551
   1552	  abs_timecode = timecode + cluster_tc;
   1553	  if (abs_timecode < 0)
-> 1554	    return -1;
   1555
   1556	  pkt = ne_alloc(sizeof(*pkt));
   1557	  if (!pkt)

http://searchfox.org/mozilla-central/rev/1a0d9545b9805f50a70de703a3c04fc0d22e3839/media/libnestegg/src/nestegg.c#1554

I need to check spec for this part. It may take a while since I'm not familiar with webm.

Comment 3

[Jean-Yves Avenard [:jya]]

The spec indicates that timestamp should always be positive. The first sample has a negative timestamp