Posted: 5/18/2013 5:32 PM
(Edited: 5/19/2013 1:19 PM)
Post subject: Can your computer play high quality h264 in realtime?
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natt
Editor, Emulator Coder, Site Developer
Joined: 5/11/2011
Posts: 1108
Location: Murka
3968S runs at 1280x720x60fps. There's been some talk in IRC of people being unable to watch such an encode. If you have a moment, consider the following samples (about 10MiB) each: Standard encode, 1280x720/60p, 8 bit 4:2:0 10bit444 encode, 1280x720/60p, 10 bit 4:2:0 Using software decoding, my computer (2500K@4.0) can easily handle the first, but can barely handle the latter. (EDIT: I was probably incorrect here. My computer can handle the stream, which is what I observed, but I really don't know how much headroom is left.) How about yours? It's no good unless you get smooth 60fps with no framedropping or stuttering. Also, can your flash player handle the transcode in browser? Mine can't. Link to video On or about 2013-06-18, all of these links will die. Edit: If it's not clear, this would be the first TASVideos publication ever where the primary encode was bigger than 480p.
Posted: 5/18/2013 5:59 PM
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Aktan
Publisher
Joined: 4/23/2009
Posts: 1283
For playback of Archive.org stream on my laptop of Intel Core i7 2670QM, with Intel GPU: Flash with hardware acceleration: Corrupted video but I think no stuttering with GPU usage around 17 % and CPU usage around 9%. Flash with software render: No corrupted video but some stuttering with CPU usage around 14%. Firefox HTML5 MP4 player: No corrupted video but slight stuttering with CPU usage around 13%. Seems all the players are single core, unfortunately.
Posted: 5/18/2013 6:12 PM
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RGamma
Joined: 2/3/2013
Posts: 320
Location: Germany
First two encodes play perfectly for me (i5-750@4x3.2GHz) using mpv (OpenGL renderer, which also supports 10bit444): 
$ mpv -v
mpv git-bc8815d (C) 2000-2013 mpv/MPlayer/mplayer2 projects
Flashvideo stutters notably (Chromium 26.0.1410.63, Pepper Flash player version 11.7.700.169).
All syllogisms have three parts, therefore this is not a syllogism.
Posted: 5/18/2013 6:19 PM
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DeHackEd
Emulator Coder, Site Developer, Former player
Joined: 11/6/2004
Posts: 833
H264 software decoding of the 10bit444 video takes a decent chunk of CPU, but my core i7 (first generation) is more than up to it. Hardware h264 decoding works but not for 10bit video. 720p youtube plays fine. I usually avoid 1080p on youtube for bandwidth reasons. Not testing the embedded video in the OP because archive.org is slow right now, and noscript.
Posted: 5/18/2013 7:18 PM
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Scepheo
Player (146)
Joined: 7/16/2009
Posts: 686
Standard MKV: VLC plugin : "Video can't be played because the file is corrupt.", n/a VLC (offline): perfect, no stuttering or corruption, 7% CPU 10bit444 MKV: VLC plugin: "Video can't be played because the file is corrupt.", n/a VLC (offline): perfect, no stuttering or corruption, 12% CPU Archive.org MP4: Firefox Flash plugin: perfect, no stuttering or corruption, 9% CPU VLC plugin: Severe stuttering and corrupted graphics, 10% CPU VLC (offline): perfect, no stuttering or corruption, 8% CPU Firefox 20.0.1 Shockwave Flash 11.6.602.180 VLC Web Plugin 2.0.2.0 VLC 2.0.3
Posted: 5/18/2013 7:39 PM
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Warp
Banned User
Joined: 3/10/2004
Posts: 7698
Location: Finland
Didn't have any problem playing the two encodes with mplayer (on an i5). The video in the embedded flash player seemed a bit jittery even though it was not taking even nearly all of CPU time, for some reason.
Posted: 5/18/2013 8:17 PM
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EEssentia
Joined: 4/13/2009
Posts: 431
No problems playing back 10-bit 4:4:4. Around max 12-13% cpu use, 3% gpu with zplayer (dshow). Around 10% + 20% gpu with flash player. All tests done on quad core i7 (hyper threading enabled).
Posted: 5/18/2013 8:44 PM
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creaothceann
He/Him
Editor
Joined: 4/7/2005
Posts: 1874
Location: Germany
Both files play back without any problems in MPCH; of course in the browser it's without Vsync but still watchable. CPU usage (with lots of background tasks, most of them idle though): MPCH, NVIDIA CUVID, 08-bit file: 9% MPCH, NVIDIA CUVID, 10-bit file: 34-40% MPCH, software decoding, 08-bit file: 15% MPCH, software decoding, 10-bit file: 35-40% Browser, fullscreen: 20% Browser, small window: 60-70% System info: - 8-core AMD Phenom II X6 1050T "Thuban" @ 2.8GHz / 8GB DDR3 - NVIDIA GeForce GTX 460 (GF104 A1) / 1GB GDDR5
Posted: 5/18/2013 11:23 PM
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VanillaCoke
Active player (462)
Joined: 12/24/2010
Posts: 297
Location: CT, USA
All three played back fine for me at full speed/no stutter.
Posted: 5/19/2013 1:17 PM
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creaothceann
He/Him
Editor
Joined: 4/7/2005
Posts: 1874
Location: Germany
On an Pentium 4 (Northwood) @ 2.8GHz, 3GB DDR I get 54-56fps with MPCH. MPlayer/MPlayer2 is much lower. All framerates with LAVC decoder.
Posted: 10/1/2013 9:40 PM
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Fishaman_P
Joined: 10/1/2013
Posts: 98
Location: My Basement
Intel Core i3 540 @ 3.06GHz AMD Radeon HD 7770 (latest stable drivers) Win7 HP 64bit Tried decoding the OoT MST TAS, HQ version (10bit444 1440x1080), stuttered on high-motion parts. Viewed using VLC windowed at 0.5x zoom and full-screen (1600x900, letterboxing). Mostly same result using K-Lite codec pack decoding.
Posted: 10/2/2013 1:45 AM
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Aktan
Publisher
Joined: 4/23/2009
Posts: 1283
You should be able to play that file, I think, Fishaman P. Maybe try LAV FIlters and MPC-HC.