1239219 - webm/vp9 libvpx decoding error in 45.

Status: RESOLVED WONTFIX

(Core :: Audio/Video: Playback, defect, P3)

Description

[Jean-Yves Avenard [:jya]]

This can't be reproduced on 44 nor 46, but on 45.

http://media.steampowered.com/apps/csgo/blog/images/shadow_case/push_knives_loop_de_dust2.webm

Give a decoding error and playback abort...

Comment 1

[Jean-Yves Avenard [:jya]]

Ralph, probably linked to a libvpx change in 45.

Comment 2

[Ralph Giles (:rillian)]

Fails to play on an m-c build for me:

[vp9 @ 0x7ff82386c800] Reference segmap (temp=0,update=0) enabled on size-change!
[vp9 @ 0x7ff82386d000] Not all references are available
[Child 11520] WARNING: FFmpeg video decoder error.: file /home/giles/mozilla/firefox/dom/media/platforms/ffmpeg/FFmpegH264Decoder.cpp, line 241
[Child 11520] WARNING: Setting start time on reader failed: file /home/giles/mozilla/firefox/dom/media/MediaDecoderStateMachine.cpp, line 1916
[Child 11520] WARNING: Decoder=7ff835656600 Decode error, changed state to ERROR: file /home/giles/mozilla/firefox/dom/media/MediaDecoderStateMachine.cpp, line 1880

Is this the in-tree ffvpx? ffmpeg git master can play the stream. vpxdec from libvpx master, v1.5.0 and v1.4.0 can play the stream.

Doesn't mean it's not also broken with our in-tree libvpx, of course.

Comment 3

[Jean-Yves Avenard [:jya]]

Sorry. The issue is with libvpx in 45. 
On Linux we use ffvp9 if found. So you first have to disable ffmpeg if you want to use libvpx by clearing media.ffmpeg.enable

The fix to allow playback with ffmpeg is on inbound.

Comment 4

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

Mass change P2 -> P3

Comment 5

[Karl Tomlinson (:karlt)]

We won't backport to 45.