[MPlayer-users] Framedrop problem with VDPAU DI

[Dom H]

Several things don't make sense though. Firstly, it does it on SD
content. Secondly, it starts dropping frames permanently (and rapidly)
at a set point in the video (when a particular BBC demo reel starts
up, the audio also changes rate/channels, audio buffer is increased)
If I seek back to a second after the frame dropping is triggered (and
where it was still dropping frames like mad) it plays the same section
perfectly.

Thridly, if I change the audio track with '#' fron eng(0) to NAR(1)
then the point that triggers the framedropping doesn't happen (but
does much later in the recording at a different point) Why would the
audio track have such an impact?

Odd.

On 27 October 2011 20:39, Tom Evans <tevans.uk at googlemail.com> wrote:
> On Thu, Oct 27, 2011 at 8:09 PM, Dom H <speedsix.lists at googlemail.com> wrote:
>> Can anyone advise on this issue, my media pc is currently a very
>> expensive paperweight at the moment.
>>
>> Thanks
>
> So I think the issue _is_ performance. Deinterlacing takes a lot of
> grunt work, and your card can barely keep up. BBC HD is MBAFF H264 at
> 1440x1080 at 60Hz, and your card as benchmarked can do 1920x1080 @ 64
> frames/sec.
> Add in deinterlacing and I could easily see it getting into a state
> where it can't keep up and everything snowballs from there. Seeking
> resets the situation, so it works again for a little while before
> getting wedged again.
>
> I've got a much more powerful card, GT 520 (vdpau feature set D,
> fanless, replaced my 8400gs), and I'm watching a F1 BBC HD recording
> with deint=3 to see if I can see anything similar - nothing yet, I'll
> watch to the end of the GP (I think Hamilton wins!).
>
> Cheers
>
> Tom
>
> Here are my benchmark results for comparison:
>
> qvdpautest 0.5.1
> Unknown CPU
> (its a "CPU: Pentium(R) Dual-Core CPU E6300  @ 2.80GHz", I guess
> qvdpautest only knows about linux)
> NVIDIA GPU GeForce GT 520 (GF119) at PCI:2:0:0 (GPU-0)
>
> VDPAU API version : 1
> VDPAU implementation : NVIDIA VDPAU Driver Shared Library  275.09.07
> Wed Jun  8 14:32:34 PDT 2011
>
> SURFACE GET BITS: 1013.09 M/s
> SURFACE PUT BITS: 1144.6 M/s
>
> MPEG DECODING (1920x1080): 171 frames/s
> MPEG DECODING (1280x720): 418 frames/s
> H264 DECODING (1920x1080): 128 frames/s
> H264 DECODING (1280x720): 267 frames/s
> VC1 DECODING (1440x1080): 83 frames/s
> MPEG4 DECODING (1920x1080): 131 frames/s
>
> MIXER WEAVE (1920x1080): 231 frames/s
> MIXER BOB (1920x1080): 339 fields/s
> MIXER TEMPORAL (1920x1080): 128 fields/s
> MIXER TEMPORAL + IVTC (1920x1080): 95 fields/s
> MIXER TEMPORAL + SKIP_CHROMA (1920x1080): 165 fields/s
> MIXER TEMPORAL_SPATIAL (1920x1080): 67 fields/s
> MIXER TEMPORAL_SPATIAL + IVTC (1920x1080): 54 fields/s
> MIXER TEMPORAL_SPATIAL + SKIP_CHROMA (1920x1080): 75 fields/s
> MIXER TEMPORAL_SPATIAL (720x576 video to 1920x1080 display): 203 fields/s
> MIXER TEMPORAL_SPATIAL + HQSCALING (720x576 video to 1920x1080
> display): 134 fields/s
>
> MULTITHREADED MPEG DECODING (1920x1080): 185 frames/s
> MULTITHREADED MIXER TEMPORAL (1920x1080): 95 fields/s
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