931031 - webm videos converted using Miro don't play right

Status: RESOLVED DUPLICATE of bug 868797

(Core :: Audio/Video, defect)

Description

[Jim Mathies [:jimm]]

Here's an example video - I've been using webm videos to record issues in metrofx:

https://bugzilla.mozilla.org/attachment.cgi?id=822344

This video was recorded as an mp4, then converted using the Miro Video Converter to webm SD. 

Chrome plays this video correctly.

Comment 1

[(mostly gone) XtC4UaLL [:xtc4uall]]

Confirmed with Mozilla/5.0 (Windows NT 6.1; WOW64; rv:30.0) Gecko/20100101 Firefox/30.0 ID:20140213030201 CSet: a62bde1d6efe

Complete name                            : WP_20131025_09_21_21_Pro.webmhd.webm
Format                                   : WebM
Format version                           : Version 2
File size                                : 2.13 MiB
Duration                                 : 9s 233ms
Overall bit rate mode                    : Variable
Overall bit rate                         : 1 937 Kbps
Writing application                      : Lavf54.3.100
Writing library                          : Lavf54.3.100

Video
ID                                       : 1
Format                                   : VP8
Codec ID                                 : V_VP8
Duration                                 : 9s 233ms
Bit rate                                 : 1 740 Kbps
Width                                    : 1 080 pixels
Height                                   : 606 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 30.000 fps
Compression mode                         : Lossy
Bits/(Pixel*Frame)                       : 0.089
Stream size                              : 1.91 MiB (90%)
Default                                  : Yes
Forced                                   : No

Audio
ID                                       : 2
Format                                   : Vorbis
Format settings, Floor                   : 1
Codec ID                                 : A_VORBIS
Duration                                 : 9s 232ms
Bit rate mode                            : Variable
Bit rate                                 : 112 Kbps
Channel(s)                               : 2 channels
Sampling rate                            : 44.1 KHz
Compression mode                         : Lossy
Delay relative to video                  : 1mn 5s
Stream size                              : 126 KiB (6%)
Writing library                          : libVorbis (Schaufenugget) (20101101 (Schaufenugget))
Default                                  : Yes
Forced                                   : No
Writing application                      : Lavc54.15.100

Comment 2

[Matthew Gregan [:kinetik]]

mkvinfo -v
[...]
|+ Cluster
| + Cluster timecode: 0.000s
| + SimpleBlock (key, track number 2, 1 frame(s), timecode 18446744027.136s = -00:00:00.003)
|  + Frame with size 55