[MPlayer-users] VDPAU decoding in MPlayer broken by recent FFmpeg changes

Ilja Sekler ilja_sekler_ at gmx.de
Mon Sep 16 10:22:06 CEST 2013


Am 15.09.2013 14:08, schrieb Reimar Döffinger:

> On 12.09.2013, at 22:39, Reimar Döffinger <Reimar.Doeffinger at gmx.de>
> wrote:
>
>> On Thu, Sep 12, 2013 at 06:33:30PM +0000, Carl Eugen Hoyos wrote:
>>
>>> Reimar Döffinger <Reimar.Doeffinger <at> gmx.de> writes:
>>>
>>>> What are your reasons to want the old code back?
>>>
>>> It was tested extensively (to an amount which we cannot reach
>>> now) and I don't remember open bug reports.
>>
>> Though it did have bugs, for example an aspect change would
>> incorrectly discard previous reference frames due to reinitializing
>> VDPAU. But that is not relevant long-term, if we are the only user
>> of that code with nobody maintaining it it's just not a viable
>> long-term solution. We've seen that well enough with the slice
>> rendering. And any HEVC hardware acceleration (which is certainly
>> going to be more important than MPEG-4 due to the decode effort it
>> requires) is likely to use hwaccel. So _only_ supporting the old
>> API is very much not a valid long-term strategy IMHO. Now nothing
>> against supporting both, but a) someone needs to implement it b) we
>> still need testing and bug reports to know what issues we have
>
> Both are now supported, append "old" to the codec name to use the old
> code.

This is awesome, thank you very much.

> So I'd still appreciate help getting the new code to work properly.
> This means in particular proper bug reports for MPEG-1/2, H.264, VC-1
> and WMV3 issues specific to the new code [...].

r36445 + r36446 have introduced a crash with "-vc ffmpeg12vdpau". "-vc 
ffmpeg12vdpauold" works fine. gdb output attached.

Thanks,

-- 
Regards

Ilja

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