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16th February 2012, 20:24 | #9121 | Link |
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GPU usage itself has nothing to do with the video decoding, its probably just a result from the frame copy that CUVID performs.
Personally, given the choice, i would stick with CUVID. Its developed to match NVIDIA cards perfectly, and thus much less error prone - unless you really have a reason to need that less GPU usage for something.
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LAV Filters - open source ffmpeg based media splitter and decoders |
16th February 2012, 20:26 | #9124 | Link |
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Possible, yes, but its way too slow to be usable (copying the frame to the surface, and then back to system memory). The video processor surfaces copy way slower then the decoding render targets, for some reason. Blame GPU vendors.
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LAV Filters - open source ffmpeg based media splitter and decoders |
16th February 2012, 20:32 | #9125 | Link |
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nev, maybe you already have this on your long term todo list. Is it possible to allow selection of certain decoders for certain media types. (Newer nvidia drivers for example don't like CUVID vc-1 decoding so I'd love to use QuickSync for that and CUVID for everything else). Might obviously require a fair bit of GUI work I guess.
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16th February 2012, 20:32 | #9126 | Link |
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yep i really wonder what goes wrong with the madoka bitstream http://www.mediafire.com/?b6ru372z4k3k2sn the only ones that playback that correct with DXVA are Arcsoft currently, and partly mirillis but they have still frame issues
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all my compares are riddles so please try to decipher them yourselves :) It is about Time Join the Revolution NOW before it is to Late ! http://forum.doom9.org/showthread.php?t=168004 Last edited by CruNcher; 16th February 2012 at 20:39. |
16th February 2012, 20:40 | #9127 | Link | |
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because I coulda swore atleast with DXVA(2 only? idk) that accessing the deinterlacer for software decoding was possible normally and infact done by commercial software already. maybe I'm mistaken... |
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16th February 2012, 20:59 | #9128 | Link |
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Thanks for the update nev
Did some testing with native DXVA2, in h264(HD) and VC1 all my test's are identical between native and copy back and play perfectly, also the power consumption is identical between the 2 modes on my system. There seems to be some issues with native mode with SD h264 content and WMV3 where all the same tests work with copy back, the video opens but just doesn't start.
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16th February 2012, 21:04 | #9129 | Link | |
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16th February 2012, 21:18 | #9130 | Link | |
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It's working fine, very fine on the signature system. It's working for VLD only, so we have all three formats DXVA accelerated: H.264(Progressive, Interlaced) VC-1 (Progressive, Interlaced) WMV3 Performance numbers are on par with MS DS and the quality is very good. I didn't do an exchastive test but I only found one case I didn't get HW acceleration. It's the difficult VC-1 1080\60p sample: Devil_May_Cry_Gameplay ftp://helpedia.com/pub/multimedia/x2...y_Gameplay.wmv
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16th February 2012, 21:28 | #9131 | Link | |
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16th February 2012, 21:30 | #9132 | Link |
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The system tested is the signature's system
UPDATE: I found out a lot of "similar" VC-1 clips not playing in DXVA on ATI's HW. Copy-back mode worked fine for those clips. UPDATE2: A lot of 720 and 1080 WMV HD clips are not HW accelerated too Copy-back mode worked fine for those clips. Looks like a problem with ModeVC1_VLD.
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Win 10 x64 (19042.572) - Core i5-2400 - Radeon RX 470 (20.10.1) HEVC decoding benchmarks H.264 DXVA Benchmarks for all Last edited by NikosD; 16th February 2012 at 21:56. |
16th February 2012, 21:32 | #9133 | Link | |
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I didn't see any.
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16th February 2012, 21:40 | #9134 | Link | |
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Anyway, i put that request onto my tracker, and maybe i'll do it some time, although i can't even picture how an UI would look. :/
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16th February 2012, 22:29 | #9136 | Link |
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Had an opportunity to test DXVA2 Copyback from LAV 0.46 on my i5-430M (pre-SB) laptop. CPU usage is as follows:
1080p24 AVC @ 9 Mbps: 11-12% 1080p24 AVC @ 24 Mbps: 15-16% 1080p24 VC-1 @ 19 Mbps: 20-22% I have to use all output modes because if I leave just RGB32 ticked, CPU usage nearly doubles. I guess because there's simply more information to copy. DXVA2 Copy-Back still doesn't like my 1080i25 AVC HDTV rips at all. Very slow and erratic playback, green areas appearing on the video, MPC-HC crashing, even IGP drivers crashing. These files play perfectly fine on my other machines using 0.46's CUVID and they also play decently on this laptop in software mode (~40% CPU usage, plays at 50 fps mostly but sometimes drops to ~40 fps with dropped frames, which is why I'd love a working hardware acceleration solution!). Last edited by DragonQ; 16th February 2012 at 22:31. |
17th February 2012, 01:20 | #9139 | Link |
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DXVA2 Native also bad playback H.264 MBAFF and Interlaced on Intel(Intel HD, without support QuickSync)
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