GPU video acceleration made possible by Apple?

Ayla · 2010-04-27 19:35

I just tried a massive 30GB H.264 1080p .mkv in Plex on my 13" MacBook with an Nvidia 9400M GPU and CPU usage was around 40% on both cores, with no lag/drops at all.

I tried the same file in VLC and the CPU maxed out, the video lagged and there was massive frame drops.

So Apple's framework definitely works, hehe Smile

**davilla** · 2010-04-27 20:06

Ayla Wrote:I just tried a massive 30GB H.264 1080p .mkv in Plex on my 13" MacBook with an Nvidia 9400M GPU and CPU usage was around 40% on both cores, with no lag/drops at all.

I tried the same file in VLC and the CPU maxed out, the video lagged and there was massive frame drops.

So Apple's framework definitely works, hehe

Cool, how about a mediainfo on that file. It would be nice to know the encoding profile (baseline, main, high) and level info (L3.x, L4.x, L5.x). Heheh can it handle killa Smile

Thomss · 2010-04-27 20:09

This sounds great, certainly keeping an eye on this thread! I have a c2d + 9400 mac mini using xbmc.

RckStr · 2010-04-27 21:50

Great to hear that its working great in Plex. Someone asked this before but im not sure it was answered: Could their work be used for xbmc? Is there any way you could just implement their sollution Davilla?

Ayla · 2010-04-27 22:45

davilla Wrote:Cool, how about a mediainfo on that file. It would be nice to know the encoding profile (baseline, main, high) and level info (L3.x, L4.x, L5.x). Heheh can it handle killa

Sure davilla, here is the mediainfo for the file:

Code:

General / Container Stream # 1

    Total Video Streams for this File -> 1

    Total Audio Streams for this File -> 1

    Video Codecs Used -> AVC

    Audio Codecs Used -> DTS

    File Format -> Matroska

    Play Time -> 2h 49mn

    Total File Size -> 24.4 GiB

    Total Stream BitRate -> 20.7 Mbps

    Encoded with -> mkvmerge v3.2.0 ('Beginnings') built on Feb 12 2010 16:46:17

    Encoding Library -> libebml v0.7.9 + libmatroska v0.8.1

Video Stream # 1

    Codec (Human Name) -> AVC

    Codec (FourCC) -> V_MPEG4/ISO/AVC

    Codec Profile -> High@L4.1

    Frame Width -> 1 920 pixels

    Frame Height -> 1 038 pixels

    Frame Rate -> 23.976 fps

    Total Frames -> 243807

    Display Aspect Ratio -> 1.850

    Scan Type -> Progressive

    Colorimetry -> 4:2:0

    Codec Settings (Summary) -> CABAC / 4 Ref Frames

    QF (like Gordian Knot) -> 0.392

    Codec Settings (CABAC) -> Yes

    Video Stream Length -> 2h 49mn 18s 625ms

    Video Stream BitRate -> 18.7 Mbps

    Video Stream BitRate (Nominal) -> 19.0 Mbps

    Bit Depth -> 24 bits

    Video Stream Size -> 22.2 GiB (91%)

    Video Stream Title -> Saving Private Ryan (1998)

    Video Encoder -> x264 - core 92 r1510 33d382a

    Video Encoder (Settings) -> cabac=1 / ref=4 / deblock=1:-3:-3 / analyse=0x3:0x113 / me=esa / subme=10 / psy=1 / psy_rd=0.80:0.20 / mixed_ref=1 / me_range=48 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-3 / threads=12 / sliced_threads=0 / nr=0 / decimate=0 / interlaced=0 / constrained_intra=0 / bframes=8 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / wpredb=1 / wpredp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc=2pass / mbtree=0 / bitrate=19000 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / pb_ratio=1.30 / aq=1:0.60

    Video Stream Language -> English

Audio Stream # 1

    Codec -> DTS

    Codec (FourCC) -> A_DTS

    Audio Stream Length -> 2h 49mn 28s 794ms

    Audio Stream BitRate -> 1 510 Kbps

    Audio Stream BitRate Mode -> CBR

    Number of Audio Channels -> 6

    Audio Channel's Positions -> Front: L C R, Surround: L R, LFE

    Sampling Rate -> 48.0 KHz

    Bit Depth -> 24 bits

    Audio Stream Size -> 1.79 GiB (7%)

    Audio Stream Title -> DTS core 5.1 @ 1.5 Mbps

    Audio Stream Language -> English

Ayla · 2010-04-27 22:50

I just tried the killa sample, my 2.26Ghz C2D MacBook Pro uses ca. 85% CPU on both cores and drops around 20 frames.

**davilla** · 2010-04-27 22:55

@Ayla, In that mediainfo dump, important bits are 1080p High@L4.1 with 4 ref frames.

My killa sample is 1080p, High@L5.1 with 16 ref frames. Sounds like VDADecoder does have limits as to what it can handle.

fredaroony · 2010-04-28 00:17

This file would stutter very bad on my 2.0Ghz mini before but now plays at around 50-70% or so.

Code:

Complete name :

/Volumes/chris/Downloads/Torrents/Movies/IMAX Under The Sea 2009 Bluray 1080p DTS x264 CHD/imax.under.the.sea.2009.bluray.1080p.dts.x264-chd.mkv

Format :Matroska

File size :4.35 GiB

Duration :40mn 51s

Overall bit rate :15.3 Mbps

Encoded date :UTC 2010-04-11 17:09:03

Writing application :mkvmerge v3.3.0 ('Language') 编译于 Mar 24 201014:59:24

Writing library :libebml v0.8.0 + libmatroska v0.9.0

Video

ID :1

Format :AVC

Format/Info :Advanced Video Codec

Format profile :High@L4.1

Format settings, CABAC :Yes

Format settings, ReFrames :4 frames

Muxing mode :Container profile=Unknown@4.1

Codec ID :V_MPEG4/ISO/AVC

Duration :40mn 51s

Bit rate :13.4 Mbps

Nominal bit rate :13.8 Mbps

Width :1920 pixels

Height :1080 pixels

Display aspect ratio :16:9

Frame rate :23.976 fps

Resolution :8 bits

Colorimetry :4:2:0

Scan type :Progressive

Bits/(Pixel*Frame) :0.270

Stream size :3.84 GiB (88%)

Title :IMAX.Under.The.Sea.2009.Bluray.1080p.DTS.x264-CHD

Writing library :x264 core 92 r1523 25ca5b0

Encoding settings :

cabac=1 / ref=4 / deblock=1:-3:-3 / analyse=0x3:0x113 / me=umh / subme=10 / psy=1 / psy_rd=1.10:0.10 / mixed_ref=1 / me_range=128 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=2 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-3 / threads=6 / sliced_threads=0 / nr=0 / decimate=0 / interlaced=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / wpredb=1 / wpredp=2 / keyint=120 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=60 / rc=2pass / mbtree=1 / bitrate=13752 / ratetol=2.0 / qcomp=0.65 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=50000 / vbv_bufsize=50000 / ip_ratio=1.40 / aq=1:1.00 / nal_hrd=none

Language :English

Audio

ID :2

Format :DTS

Format/Info :Digital Theater Systems

Codec ID :A_DTS

Duration :40mn 51s

Bit rate mode :Constant

Bit rate :1510 Kbps

Channel(s) :6 channels

Channel positions :Front: L C R, Side: L R, LFE

Sampling rate :48.0 KHz

Resolution :24 bits

Stream size :441 MiB (10%)

Title :DTS, 5.1 channels, 24 bits, 1509kbps, 48khz

Language :English

RckStr · 2010-04-28 12:56

With Plex, I have no performance increase whatsoever with my 9400 mini. So unless Im doing something wrong, I think their new release could use some work.... Looking forward to c what XBMC can achieve with this.

fredaroony · 2010-04-28 13:36

RckStr Wrote:With Plex, I have no performance increase whatsoever with my 9400 mini. So unless Im doing something wrong, I think their new release could use some work.... Looking forward to c what XBMC can achieve with this.

You must be doing something wrong because the increase in performance is dramatic and I also have a 9400 mini.

Ayla Fan Posts: 578 Joined: Feb 2008 Reputation: 0	2010-04-27 19:35 Post: #31 I just tried a massive 30GB H.264 1080p .mkv in Plex on my 13" MacBook with an Nvidia 9400M GPU and CPU usage was around 40% on both cores, with no lag/drops at all. I tried the same file in VLC and the CPU maxed out, the video lagged and there was massive frame drops. So Apple's framework definitely works, hehe
	find quote

Thomss Member Posts: 87 Joined: Apr 2009 Reputation: 0	2010-04-27 20:09 Post: #33 This sounds great, certainly keeping an eye on this thread! I have a c2d + 9400 mac mini using xbmc.
	find quote

RckStr Senior Member Posts: 172 Joined: Dec 2009 Reputation: 0	2010-04-27 21:50 Post: #34 Great to hear that its working great in Plex. Someone asked this before but im not sure it was answered: Could their work be used for xbmc? Is there any way you could just implement their sollution Davilla?
	find quote

Ayla Fan Posts: 578 Joined: Feb 2008 Reputation: 0	2010-04-27 22:50 Post: #36 I just tried the killa sample, my 2.26Ghz C2D MacBook Pro uses ca. 85% CPU on both cores and drops around 20 frames.
	find quote

davilla Team-XBMC Developer Posts: 10,403 Joined: Feb 2008 Reputation: 58	2010-04-27 22:55 Post: #37 @Ayla, In that mediainfo dump, important bits are 1080p High@L4.1 with 4 ref frames. My killa sample is 1080p, High@L5.1 with 16 ref frames. Sounds like VDADecoder does have limits as to what it can handle. MediaInfo : http://mediainfo.sourceforge.net/ Do not e-mail XBMC-Team members directly asking for support. Read/follow the forum rules.
	find quote

RckStr Senior Member Posts: 172 Joined: Dec 2009 Reputation: 0	2010-04-28 12:56 Post: #39 With Plex, I have no performance increase whatsoever with my 9400 mini. So unless Im doing something wrong, I think their new release could use some work.... Looking forward to c what XBMC can achieve with this.
	find quote

fredaroony Junior Member Posts: 20 Joined: Aug 2009 Reputation: 0	2010-04-28 13:36 Post: #40 RckStr Wrote:With Plex, I have no performance increase whatsoever with my 9400 mini. So unless Im doing something wrong, I think their new release could use some work.... Looking forward to c what XBMC can achieve with this. You must be doing something wrong because the increase in performance is dramatic and I also have a 9400 mini.
	find quote