[libav-bugs] [Bug 341] Output WebM file is corrupted.

bugzilla at libav.org bugzilla at libav.org
Wed Feb 19 17:51:25 CET 2014


https://bugzilla.libav.org/show_bug.cgi?id=341

Marek Straka <marek at straka.info> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
                 CC|                            |marek at straka.info
         Resolution|NEEDSBACKPORTING            |
     Ever Confirmed|0                           |1

--- Comment #11 from Marek Straka <marek at straka.info> 2014-02-19 17:51:24 CET ---

I have found that problem in libav version 9.11 in debian:
http://packages.qa.debian.org/liba/libav.html

Was that still not backported to 9 branch?
---
Rendering webm produce somehow corrupted video files, that are not playable in
Firefox. Even not in Firefox v.27 under Windows. You can reproduce it always
for example with
avconv -i video.mp4 -vcodec libvpx -b 700k -r 25 -acodec libvorbis -ab 128k
/tmp/video.webm
and then open video.webm in Firefox. It can not be recognized even as video
file. It is marked as audio file. If you try press a few times on the progress
bar somewhere inside of this stream it starts to play.

I have tried some webm video that I have rendered some months ago, all were
o.k. Also rendered webm videos with Mediacoder http://www.mediacoderhq.com/ are
o.k.

Standalone players has no problems to play such videos.

Should I provide sample video?

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