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h264 playback with hardware acceleration in FF 30.0 breaks after first play

Firefox Résolution de problèmes
meeotch a répondu
meeotch
meeotch

Playing an h264 encoded (in mp4 container) file directly in the browser on FF 30.0 with hardware acceleration turned on produces the following behavior for me on Windows 7:

1st play - fine

reload page - video will not play

play any *other* h264/mp4 video (or the same video in a second tab) - video will not play

close tab, clear cache, open new tab with video - video plays again, but no further video or reload will work until procedure is repeated.

turn off hardware acceleration, restart Firefox - everything behaves as it should. (Though cpu usage is now through the roof, of course.)

I've tried this with all addons disabled, in safe mode, and with a totally blank profile - same behavior. Here's a test video: http://www.quirksmode.org/html5/videos/big_buck_bunny.mp4

Playing an h264 encoded (in mp4 container) file directly in the browser on FF 30.0 with hardware acceleration turned on produces the following behavior for me on Windows 7: 1st play - fine reload page - video will not play play any *other* h264/mp4 video (or the same video in a second tab) - video will not play close tab, clear cache, open new tab with video - video plays again, but no further video or reload will work until procedure is repeated. turn off hardware acceleration, restart Firefox - everything behaves as it should. (Though cpu usage is now through the roof, of course.) I've tried this with all addons disabled, in safe mode, and with a totally blank profile - same behavior. Here's a test video: http://www.quirksmode.org/html5/videos/big_buck_bunny.mp4

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meeotch
meeotch Auteur de la question

I should probably mention that my graphics hardware is ATI FireGL 7500 (mobile), and that I have the latest drivers available from my laptop manufacturer. Also, hardware accel in Chrome seems to work fine with the same files.