LAV CUVID Decoder - High Quality Hardware decoding for NVIDIA

[nevcairiel]

Originally Posted by xv

I do not have CoreAVC, but DGDecNV and it works perfectly there. I also remuxed the file, problem is still the same.
By the way, the file the problem occurs is not recorded from DVB, but encoded by a DSLR and is in MOV container, I remuxed to MKV, same problem. File is 1080p25 (1088 coded). Plays fine with ffdshow.

Can you upload a short sample that shows the problem? Maybe cutting it to 1080 solves it already, but i dont think i have a video with those problems

Originally Posted by xv

Another question: MPEG-2, MPEG-4 ASP and H.264 work for me, but it refuses to accept WMV3 (from wmv/asf file), which is the same as VC-1? Or are there some differences and CUDA cannot decode it?

I suppose i can try feeding it directly into the decoder and claiming its VC1, and see what happens..

[CruNcher]

Nev might be interesting http://forum.doom9.org/showpost.php?...postcount=6181 especially the 12 second pattern before drops start (buffer difference ?) for some Decoder including yours

[xv]

Originally Posted by nevcairiel

Can you upload a short sample that shows the problem? Maybe cutting it to 1080 solves it already, but i dont think i have a video with those problems

Here it is:
http://www.megaupload.com/?d=F7S8JZO1
Thanks

[neoufo51]

For some reason, no matter what, this decoder will only work when I play H264 files. It doesn't work at all with any XVID files. I've disabled the MPC-HC decoder but it then just uses the Microsoft mpeg4 DMO.

EDIT: Whoops, my main card only supports featureset B. My mistake.

[SamuriHL]

That's because it only decodes h.264/vc-1/mpeg2 afaik.

[BatKnight]

Originally Posted by SamuriHL

That's because it only decodes h.264/vc-1/mpeg2 afaik.

Nope, LAV CUVID decodes H264, VC-1, MPEG2 and MPEG4-ASP (DivX/Xvid) as long as you own a nVIDIA card that supports the VDPAU Feature Set C.
Cards supporting only Feature Set B or A can't decode MPEG4-ASP (DivX/Xvid)

You may check http://en.wikipedia.org/wiki/Nvidia_..._.28HD.29_GPUs for a complete list of availability.

Nuno

[SamuriHL]

Originally Posted by BatKnight

Nope, LAV CUVID decodes H264, VC-1, MPEG2 and MPEG4-ASP (DivX/Xvid) as long as you own a nVIDIA card that supports the VDPAU Feature Set C.
Cards supporting only Feature Set B or A can't decode MPEG4-ASP (DivX/Xvid)

You may check http://en.wikipedia.org/wiki/Nvidia_..._.28HD.29_GPUs for a complete list of availability.

Nuno

Ah, neat. I didn't know it did mpeg4-asp. Well, obviously if your card supports it. Mine would. Sweet!

[neoufo51]

Originally Posted by BatKnight

Nope, LAV CUVID decodes H264, VC-1, MPEG2 and MPEG4-ASP (DivX/Xvid) as long as you own a nVIDIA card that supports the VDPAU Feature Set C.
Cards supporting only Feature Set B or A can't decode MPEG4-ASP (DivX/Xvid)

You may check http://en.wikipedia.org/wiki/Nvidia_..._.28HD.29_GPUs for a complete list of availability.

Nuno

Crap, that's exactly the problem. I thought my card supported C but I doubled checked and its B. I'll buy new hardware in the near future anyway. Thanks for your help.

[JarrettH]

Doesn't seem to be loading for me.

Using MPC and EVR-CP I blocked Microsoft DTV-DVD Decoder, made LAVCUDSFDFGFDS decoder preferred, DVD still loads with MPEG-2 Video Decoder (low merit)

[ranpha]

Originally Posted by JarrettH

Doesn't seem to be loading for me.

Using MPC and EVR-CP I blocked Microsoft DTV-DVD Decoder, made LAVCUDSFDFGFDS decoder preferred, DVD still loads with MPEG-2 Video Decoder (low merit)

Yeah, it seems that using the 'Open DVD' function, and LAV CUVID isn't used (it uses the Cyberlink decoder in my case - and surprisingly, there are no Macrovision error with madVR). Only if I open the .vob file directly, LAV CUVID decoder will be used.

[JarrettH]

I am also wondering what this does that the Microsoft DTV-DVD one does not. The Microsoft one looks pretty great to be honest.

[thuan]

@nevcairiel:
Since the time nvidia released driver newer than 258.96, DXVA and CUDA acceleration has been very choppy for me (home config), the worst is with 1080p video, with your decoder it plays like slideshow (1 frame per 4 or 5 seconds), with CoreAVC CUDA or MPC DXVA I still have it at certain positions in a video and after seek. It is really annoying that I'm thinking of changing hardware. So can you compile this decoder with an older version of CUDA SDK so I can use it with the older driver? It will be very appreciated. Also what is the current state of playback on your newer nvidia (GTS 450 I presume), is it butter smooth for any video resolution/bitrate?

Thanks.

[nevcairiel]

Playback is perfect for me, on both my GTS 450 and my GTX 570, using either the 267.24 or 266.58 driver.

[bjd]

Yeah, it seems that using the 'Open DVD' function, and LAV CUVID isn't used (it uses the Cyberlink decoder in my case - and surprisingly, there are no Macrovision error with madVR). Only if I open the .vob file directly, LAV CUVID decoder will be used.

MediaType issue:

OpenDVD will produce MEDIATYPE_ENCRYPTEDPACK (not supported)
Open VOB will produce MEDIATYPE_VIDEO

[thuan]

@nevcairiel: Then I do hope I see you compile a version of your filter that support older graphic driver before I lost my patience and jump the gun . Don't really wanna change GFX card now as I'm going oversea sometime this year but this issue has been going for a while already and it seems to affect other with nvidia gtx 260/280 and older cards (saw a few on guru3d forum).

[CruNcher]

Originally Posted by thuan

@nevcairiel:
Since the time nvidia released driver newer than 258.96, DXVA and CUDA acceleration has been very choppy for me (home config), the worst is with 1080p video, with your decoder it plays like slideshow (1 frame per 4 or 5 seconds), with CoreAVC CUDA or MPC DXVA I still have it at certain positions in a video and after seek. It is really annoying that I'm thinking of changing hardware. So can you compile this decoder with an older version of CUDA SDK so I can use it with the older driver? It will be very appreciated. Also what is the current state of playback on your newer nvidia (GTS 450 I presume), is it butter smooth for any video resolution/bitrate?

Thanks.

Hmm could you post Cuda-Z memory bandwith results ?

Low Power Profile



High Power Profile



Also what for a renderer are you using ?

Also be carefull the DSP is only optimized upto H.264 1080p 60 fps if you try to playback something @ higher framerates you would need the VPx core that supports MVC

[jj666]

Thuan,

I'm using the 9800 GX2 with 267.60 driver (and previously 267.24), according to Wikipedia, should be exactly the same processing unit as the 9800 GT. No problems here...

GeForce 9600 GSO, 9800 GT, 9800 GTX, 9800 GTX+, 9800 GX2 	G92 	VP2 	A 	March 2008

Cheers,

-jj-

[thuan]

@jj666: Your OS is? I will search for and try 267.60

@CruNcher: Here's the screenshot in High Power mode

My GPU is factory overclocked to 740MHz core and 1850 shader though. Driver is 266.58 ATM of testing.

madVR or EVR-CP, same problem.
And no, I was trying to play simple 1080p 24fps file.

[CruNcher]

Hmm quite low (what for System Memory you use ? Frequency,timings ?)
are these also result in playback issues (maybe even frame drops use the Youtube Info display, right click )
http://www.youtube.com/watch_popup?v...LXjA&vq=hd1080
http://www.youtube.com/watch_popup?v...Z73A&vq=hd1080

don't forget to turn hardware acceleration on

[nevcairiel]

Note that LAV CUVID is only using pinned memory to transfer the image back from the GPU to the System RAM, as pageable memory is known to have performance problems.