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Old 08-26-12, 06:54 PM   #1
giaur
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Join Date: Jan 2012
Posts: 8
Default GT220-poor vdpau 1080i deinterleacing performance after upgrade 304.32->304.37

Hello,

Nvidia GT220, Debian Sid x64, kernel 3.5.2, X.Org X Server 1.12.3.902 (1.12.4 RC 2).

I have problems with 1080i dvb-t video decoding using vdpau. After upgrading drivers form 304.32 (beta) to 304.37 (stable) it's impossible to play 1080i smoothly.

I use xbmc with vdpau enabled and:
- deinterleace: auto
- sharpen filter: 1 (maximum)

I've also tried some other deinterleace methods, but still video don't play smoothly on 1080i (576i plays fine). There are no problems while playing 1080p videos (no deinterleacing needed) - so I suspect some problems with deinterleacing. Also, resulting picture quality seems to be worse on 304.37. After downgrading to earlier 304.32 driver (Beta) 1080i plays ok again.

This is my xorg.conf:

Code:
Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
EndSection

Section "Files"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/input/mice"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "Unknown"
    HorizSync       28.0 - 33.0
    VertRefresh     43.0 - 72.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    Option "RegistryDwords" "PowerMizerEnable=0x1; PerfLevelSrc=0x3322; PowerMizerDefaultAC=0x1"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection
Do you have any idea why latest stable driver works worse than previous beta in my case?
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Old 08-27-12, 03:41 AM   #2
xorbe
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Join Date: Jun 2005
Posts: 388
Default Re: GT220-poor vdpau 1080i deinterleacing performance after upgrade 304.32->304.37

Possibly because card is stuck in low performance mode:
http://www.nvnews.net/vbulletin/show...37&postcount=3
ie, don't use that driver, it's buggy. Beta vs stable, it seems to matter little I've noticed. They change way too much from the last beta to the stable release. (I call it "Mandriva syndrome".)
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Old 08-27-12, 01:59 PM   #3
crisalide
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Join Date: Dec 2008
Posts: 173
Default Re: GT220-poor vdpau 1080i deinterleacing performance after upgrade 304.32->304.37

No problem here.
Run qvdpautest and compare with these results:
Code:
qvdpautest 0.5.1
Intel(R) Core(TM)2 CPU         E8500  @ 3.16GHz
NVIDIA GPU GeForce GT 220 (GT216) at PCI:1:0:0 (GPU-0)

VDPAU API version : 1
VDPAU implementation : NVIDIA VDPAU Driver Shared Library  304.37  Wed Aug  8 20:15:45 PDT 2012

SURFACE GET BITS: 1340.77 M/s
SURFACE PUT BITS: 1480.78 M/s

MPEG DECODING (1920x1080): 72 frames/s
MPEG DECODING (1280x720): 143 frames/s
H264 DECODING (1920x1080): 81 frames/s
H264 DECODING (1280x720): 122 frames/s
VC1 DECODING (1440x1080): 83 frames/s
MPEG4 DECODING (1920x1080): 72 frames/s

MIXER WEAVE (1920x1080): 1036 frames/s
MIXER BOB (1920x1080): 1787 fields/s
MIXER TEMPORAL (1920x1080): 473 fields/s
MIXER TEMPORAL + IVTC (1920x1080): 309 fields/s
MIXER TEMPORAL + SKIP_CHROMA (1920x1080): 629 fields/s
MIXER TEMPORAL_SPATIAL (1920x1080): 175 fields/s
MIXER TEMPORAL_SPATIAL + IVTC (1920x1080): 144 fields/s
MIXER TEMPORAL_SPATIAL + SKIP_CHROMA (1920x1080): 193 fields/s
MIXER TEMPORAL_SPATIAL (720x576 video to 1920x1080 display): 617 fields/s
MIXER TEMPORAL_SPATIAL + HQSCALING (720x576 video to 1920x1080 display): 292 fields/s

MULTITHREADED MPEG DECODING (1920x1080): 72 frames/s
MULTITHREADED MIXER TEMPORAL (1920x1080): 363 fields/s
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Old 08-27-12, 04:09 PM   #4
giaur
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Join Date: Jan 2012
Posts: 8
Default Re: GT220-poor vdpau 1080i deinterleacing performance after upgrade 304.32->304.37

Hmm unabe to compile this with recent qt creator and qt 4.8.2. Is there any binaries available, maybe - .deb for ubuntu/debian? There are some changes in Qt - usleep is no longer available (QThread::usleep is protected), so code should be fixed.

I have sources downloaded from here: http://hftom.free.fr/qvdpautest-0.5.1.tar.gz
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