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Old 11-28-10, 07:11 AM   #1
lgolebio
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Posts: 15
Default Slow vpdau with 8600M GT

Hi

Dell xps M1530
Geforce 8600M GT
Kernel: 2.6.36.1
system: Archlinux
Nvidia driver: 260.19.21-2
Xorg: 1.9.2-2

I don't know why but after some nvidia driver update there are problems with slow video decoding using VDPAU. The power mizer is set to max performance, but still the video is not smooth as it suppose to be, it hangs, stops for seconds. I am sure that this is related to the nvidia driver because vdpau worked for me great before.

Quote:
qvdpautest 0.5.1
Intel(R) Core(TM)2 Duo CPU T5750 @ 2.00GHz
NVIDIA GPU GeForce 8600M GT (G84) at PCI:1:0:0 (GPU-0)

VDPAU API version : 1
VDPAU implementation : NVIDIA VDPAU Driver Shared Library 260.19.21 Thu Nov 4 20:56:20 PDT 2010

SURFACE GET BITS: 189.389 M/s
SURFACE PUT BITS: 159.905 M/s

MPEG DECODING (1920x1080): 64 frames/s
MPEG DECODING (1280x720): 142 frames/s
H264 DECODING (1920x1080): 42 frames/s
H264 DECODING (1280x720): 91 frames/s
VC1 DECODING (1440x1080): 89 frames/s

MIXER WEAVE (1920x1080): 749 frames/s
MIXER BOB (1920x1080): 1014 fields/s
MIXER TEMPORAL (1920x1080): 265 fields/s
MIXER TEMPORAL + IVTC (1920x1080): 159 fields/s
MIXER TEMPORAL + SKIP_CHROMA (1920x1080): 357 fields/s
MIXER TEMPORAL_SPATIAL (1920x1080): 78 fields/s
MIXER TEMPORAL_SPATIAL + IVTC (1920x1080): 63 fields/s
MIXER TEMPORAL_SPATIAL + SKIP_CHROMA (1920x1080): 87 fields/s
MIXER TEMPORAL_SPATIAL (720x576 video to 1920x1080 display): 290 fields/s

MULTITHREADED MPEG DECODING (1920x1080): 66 frames/s
MULTITHREADED MIXER TEMPORAL (1920x1080): 244 fields/s
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Old 11-28-10, 07:52 AM   #2
cehoyos
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Default Re: Slow vpdau with 8600M GT

Quote:
Originally Posted by lgolebio View Post
Code:
H264 DECODING (1920x1080): 42 frames/s
This is the expected value, afair.

Carl Eugen
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Old 11-28-10, 08:51 AM   #3
lgolebio
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Default Re: Slow vpdau with 8600M GT

Well, maybe, but all movies that doesn't play smooth, were playing ok before update.
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Old 11-28-10, 12:03 PM   #4
weltall
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Default Re: Slow vpdau with 8600M GT

interesting your vdpautest looks right because mine doesn't at all (i've 15fps) but i've noticed small gaps like described above even on the 720p video which are still above the 30fps needed to playback them.
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Old 11-28-10, 01:55 PM   #5
stecklum
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Default Re: Slow vpdau with 8600M GT

Well, it seems the 260.19.xx series lags behind the previous drivers in particular what concerns decoding speed.

qvdpautest 0.5.1
Intel(R) Core(TM)2 Duo CPU T9300 @ 2.50GHz
NVIDIA GPU GeForce 8400M GS (G86M) at PCI:1:0:0 (GPU-0)

VDPAU API version : 1
VDPAU implementation : NVIDIA VDPAU Driver Shared Library 260.19.21 Thu Nov 4 21:46:12 PDT 2010
SURFACE GET BITS: 694.095 M/s
SURFACE PUT BITS: 854.917 M/s
MPEG DECODING (1920x1080): 38 frames/s
MPEG DECODING (1280x720): 84 frames/s
H264Decoder: FATAL: Can't create required surfaces!!
Can't initialize H264 decoder!
H264 DECODING (1280x720): 35 frames/s
VC1 DECODING (1440x1080): 48 frames/s
Profile unsupported.
MIXER WEAVE (1920x1080): 282 frames/s
MIXER BOB (1920x1080): 385 fields/s
MIXER TEMPORAL (1920x1080): 101 fields/s
MIXER TEMPORAL + IVTC (1920x1080): 57 fields/s
MIXER TEMPORAL + SKIP_CHROMA (1920x1080): 130 fields/s
MIXER TEMPORAL_SPATIAL (1920x1080): 32 fields/s
MIXER TEMPORAL_SPATIAL + IVTC (1920x1080): 25 fields/s
MIXER TEMPORAL_SPATIAL + SKIP_CHROMA (1920x1080): 36 fields/s
MIXER TEMPORAL_SPATIAL (720x576 video to 1920x1080 display): 127 fields/s

qvdpautest 0.5.1
Intel(R) Core(TM)2 Duo CPU T9300 @ 2.50GHz
NVIDIA GPU GeForce 8400M GS (G86M) at PCI:1:0:0 (GPU-0)
VDPAU API version : 1
VDPAU implementation : NVIDIA VDPAU Driver Shared Library 256.53 Fri Aug 27 20:54:24 PDT 2010
SURFACE GET BITS: 751.805 M/s
SURFACE PUT BITS: 871.177 M/s
MPEG DECODING (1920x1080): 64 frames/s
MPEG DECODING (1280x720): 135 frames/s
H264Decoder: FATAL: Can't create required surfaces!!
Can't initialize H264 decoder!
H264 DECODING (1280x720): 86 frames/s
VC1 DECODING (1440x1080): 108 frames/s
Profile unsupported.
MIXER WEAVE (1920x1080): 308 frames/s
MIXER BOB (1920x1080): 432 fields/s
MIXER TEMPORAL (1920x1080): 107 fields/s
MIXER TEMPORAL + IVTC (1920x1080): 66 fields/s
MIXER TEMPORAL + SKIP_CHROMA (1920x1080): 146 fields/s
MIXER TEMPORAL_SPATIAL (1920x1080): 34 fields/s
MIXER TEMPORAL_SPATIAL + IVTC (1920x1080): 26 fields/s
MIXER TEMPORAL_SPATIAL + SKIP_CHROMA (1920x1080): 38 fields/s
MIXER TEMPORAL_SPATIAL (720x576 video to 1920x1080 display): 126 fields/s
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Old 11-29-10, 11:04 AM   #6
Stephen Warren
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Default Re: Slow vpdau with 8600M GT

lgolebio, are you using VDPAU for decoding, or just for display? I notice that your put/get-bits values are pretty slow compared to other people. However, as cehoyos pointed out, your decoding speed values look like they should be fine.
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Old 11-30-10, 10:58 AM   #7
lgolebio
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Default Re: Slow vpdau with 8600M GT

@stephen, can you explain ? I don't know what you mean. I'm using mplayer with smplayer gui (vdpau selected in settings). And also if I run mplayer from command, with all parameters.

For example
Code:
mplayer -vo vdpau -vc ffh264vdpau movie.file
Yes, I noticed that my BITS are much slower than others, what could it be ?
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Old 11-30-10, 01:27 PM   #8
stecklum
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Default Re: Slow vpdau with 8600M GT

@Stephen, can you comment on the difference of the decoding speed I mentioned before?
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Old 12-03-10, 11:31 AM   #9
Stephen Warren
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Default Re: Slow vpdau with 8600M GT

We do have a bug filed for this issue, although we haven't yet managed to reproduce it. We'll let you know more when we have.
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