[FFmpeg-devel] [PATCH][RFC] avcodec: disallow hwaccel with frame threads

Andreas Cadhalpun andreas.cadhalpun at googlemail.com
Wed Jan 20 00:01:13 CET 2016

Hi Ronald,

On 19.01.2016 21:53, Ronald S. Bultje wrote:
> Crashes are never good and should be fixed immediately.
> What exact issue is left after the crash is fixed, and why?

The issue is that VLC from git master doesn't compile with FFmpeg from git master,
unless all hardware acceleration of VLC is disabled.

The reason is that VLC apparently uses hwaccel with frame threading, and FFmpeg
now errors out in this combination. Thus VLC added a configure check preventing
the use of VLC's hardware acceleration with FFmpeg versions that don't allow
the combination with frame threading.
Changing VLC to not use frame threading for hwaccel seems like a lot of work, so
it probably won't get done anytime soon.

Best regards,

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