[FFmpeg-devel] Fwd: [PATCH] avcodec: allow hardware decoding with multithread for FFmpeg

Stève Lhomme robux4 at videolabs.io
Wed Jul 27 21:29:18 EEST 2016

On Wed, Jul 27, 2016 at 7:58 PM, Hendrik Leppkes <h.leppkes at gmail.com> wrote:
> On Wed, Jul 27, 2016 at 6:43 PM, Stève Lhomme <robux4 at videolabs.io> wrote:
>> Hello fellow FFmpegers,
>> Is there still an issue with hardware decoding when combined with
>> multithread ? It seems to work fine on our Windows build. Although we
>> have a mutex in place in the D3D11 variant of the code that may help.
>> It mostly protects the video context...
>> If necessary we can have the same trick for DXVA2 if there are still
>> known issues.
> ffmpeg.c just produces corrupt decoding when you try to use that, so
> use at your own peril.
> Not to mention that it doesn't offer any performance benefits.


> - Hendrik
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