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FS#47323 - [gstreamer-vaapi] h.264 playback broken in Firefox

Attached to Project: Arch Linux
Opened by J. Andrew Lanz-O'Brien (jlanzobr) - Thursday, 10 December 2015, 14:17 GMT
Last edited by Evangelos Foutras (foutrelis) - Friday, 08 January 2016, 02:29 GMT
Task Type Bug Report
Category Packages: Extra
Status Closed
Assigned To Jan Alexander Steffens (heftig)
Architecture All
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 2
Private No


Cannot play back any h.264 encoded video content in Firefox (tested on version 42). Running KDE Plasma 5.5 on a system with an R9-280 on the open source AMD drivers. Works fine with gstreamer-vaapi 0.6.1.

Additional info:
* gstreamer-vaapi 0.7.0-1
* config and/or log files etc.

Steps to reproduce:
sudo pacman -S firefox gstreamer-vaapi
Install greasemonkey extension and Viewtube script (, go to Youtube, force it to use mp4
Does not play video
This task depends upon

Closed by  Evangelos Foutras (foutrelis)
Friday, 08 January 2016, 02:29 GMT
Reason for closing:  Fixed
Additional comments about closing:  Firefox 43 now uses FFmpeg for H264 decoding and GStreamer is only used for MP3 playback.
Comment by Dmytro Kostiuchenko (edio) - Saturday, 12 December 2015, 21:22 GMT
Same on intel drivers (xf86-video-intel)