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

[Ilja Sekler]

Am 11.08.2013 13:38, schrieb Reimar Döffinger:

> On Sat, Aug 10, 2013 at 03:42:38PM +0200, Ilja Sekler wrote:
>
>> With ffodivxvdpau though, I get quite
>> frequently (but not every frame) a line like
>>
>> [mpeg4 @ 0x7f1f55f31d00]marker does not match f_code
>>
>> from libavcodec/mpeg4videodec.c:376 printed in the console when
>> playing most of my few DivX and Xvid encoded videos, which doesn't
>> happen with MPlayer from 2013-08-06 12:00 and -vo ffodivxvdpau and
>> also doesn't happen with the current patched MPlayer/FFmpeg and the
>> software decoder. I can suppress this only with -msglevel
>> decvideo=0.
>
> This sounds like a bug, though I don't understand why it didn't happen
> before. At least not fully.
> Could you try below change?
> --- a/libavcodec/ituh263dec.c
> +++ b/libavcodec/ituh263dec.c
> @@ -234,6 +234,8 @@ int ff_h263_resync(MpegEncContext *s){
>           skip_bits1(&s->gb);
>           align_get_bits(&s->gb);
>       }
> +    if (get_bits_left(&s->gb) < 16)
> +        return -1;
>
>       if(show_bits(&s->gb, 16)==0){
>           pos= get_bits_count(&s->gb);

Yes, this patch works, no more "marker does not match f_code" spam in 
the console numerous times per second, thank you. Verified by a 
comparison with a MPlayer build without it.

Thanks,

-- 
Regards

Ilja