[FFmpeg-devel] [PATCH] pthread: Fix ff_thread_get_formatissues when called outside frame decode.

Rainer Hochecker fernetmenta at online.de
Mon Mar 9 07:38:18 CET 2015

Reimar Döffinger <Reimar.Doeffinger <at> gmx.de> writes:

> Any reason to believe this patch causes it?
> Because I can't see how it would.
> Maybe it's just a bug with DXVA and multithreading in the HEVC code?
> Can you provide some more information like a stacktrace, possibly using a
tool like DrMemory?

I don't think the patch itself is the root cause of the issue, it just
triggers it. get_format is called 4 times, something seems to get corrupted
in opening our hw decoder.
Do you have an explanation why it works with thread_safe_callbacks set to 1?

I am wondering if hevc misses the multithreading fix done for other codecs:

What do you think?

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