Doom9's Forum - View Single Post - LAV CUVID Decoder - High Quality Hardware decoding for NVIDIA

CruNcher · 4th September 2011, 13:54

Ok update i measured now the Power Consumption difference of Mpeg-2 Playback Intels Decoder (Hardware DXVA2) vs Lav Video (Software Multithreading) (on Core I5-2400)
and at least for Mpeg-2 i came to the conclusion that the Playback Problems that are mostly caused due to Hardware decoding aren't worth the hassle with @ best 1W save Sandy Bridge is very efficient here on the cpu part

(nothing to cheer about obviously comparing to a real SOC neither the Intel Decoder result)

so 1080p with full 60 fps Deinterlacing takes approx 13W (idle 5W + decoding 8W (includes Parser,Aero, Audio (Lav Audio) and Renderer (EVR Custom) overhead)) on Sandy Bridge and Intels Decoder (tested via Microsoft-DTV-Decoder and Intels own Mpeg-2 Decoder both are mostly identical when it comes to DXVA2, still trying to find out how to get software mode working for both forcing renderer change is no good solution for constant measuring results) doesn't do much better with DXVA2 12W (7W) :/

Im using Ben Waggoners TallShip sample for measuring if someone has a more heavier sample it would be nice to see it (but please something that occured in AVG user life not PRO and also non Studio 4:2:2)

General
ID : 0 (0x0)
Complete name : H:\theislandoriginal\TallShip_1080i_ATSC.ts
Format : MPEG-TS
File size : 777 MiB
Duration : 5mn 35s
Overall bit rate : 19.4 Mbps

Video
ID : 4096 (0x1000)
Menu ID : 1 (0x1)
Format : MPEG Video
Format version : Version 2
Format profile : Main@High
Format settings, BVOP : Yes
Format settings, Matrix : Custom
Codec ID : 2
Duration : 5mn 35s
Bit rate : 18.0 Mbps
Maximum bit rate : 18.0 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.289
Stream size : 719 MiB (93%)

Audio
ID : 4097 (0x1001)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : 129
Duration : 5mn 35s
Bit rate mode : Constant
Bit rate : 448 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 17.9 MiB (2%)
Language : English

4th September 2011, 13:54	#1153 \| Link
CruNcher Registered User Join Date: Apr 2002 Location: Germany Posts: 4,926	Ok update i measured now the Power Consumption difference of Mpeg-2 Playback Intels Decoder (Hardware DXVA2) vs Lav Video (Software Multithreading) (on Core I5-2400) and at least for Mpeg-2 i came to the conclusion that the Playback Problems that are mostly caused due to Hardware decoding aren't worth the hassle with @ best 1W save Sandy Bridge is very efficient here on the cpu part (nothing to cheer about obviously comparing to a real SOC neither the Intel Decoder result) so 1080p with full 60 fps Deinterlacing takes approx 13W (idle 5W + decoding 8W (includes Parser,Aero, Audio (Lav Audio) and Renderer (EVR Custom) overhead)) on Sandy Bridge and Intels Decoder (tested via Microsoft-DTV-Decoder and Intels own Mpeg-2 Decoder both are mostly identical when it comes to DXVA2, still trying to find out how to get software mode working for both forcing renderer change is no good solution for constant measuring results) doesn't do much better with DXVA2 12W (7W) :/ Im using Ben Waggoners TallShip sample for measuring if someone has a more heavier sample it would be nice to see it (but please something that occured in AVG user life not PRO and also non Studio 4:2:2) General ID : 0 (0x0) Complete name : H:\theislandoriginal\TallShip_1080i_ATSC.ts Format : MPEG-TS File size : 777 MiB Duration : 5mn 35s Overall bit rate : 19.4 Mbps Video ID : 4096 (0x1000) Menu ID : 1 (0x1) Format : MPEG Video Format version : Version 2 Format profile : Main@High Format settings, BVOP : Yes Format settings, Matrix : Custom Codec ID : 2 Duration : 5mn 35s Bit rate : 18.0 Mbps Maximum bit rate : 18.0 Mbps Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate : 29.970 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Interlaced Scan order : Top Field First Compression mode : Lossy Bits/(PixelFrame) : 0.289 Stream size : 719 MiB (93%) Audio ID : 4097 (0x1001) Menu ID : 1 (0x1) Format : AC-3 Format/Info : Audio Coding 3 Mode extension : CM (complete main) Codec ID : 129 Duration : 5mn 35s Bit rate mode : Constant Bit rate : 448 Kbps Channel(s) : 6 channels Channel positions : Front: L C R, Side: L R, LFE Sampling rate : 48.0 KHz Bit depth : 16 bits Compression mode : Lossy Stream size : 17.9 MiB (2%) Language : English __________________ 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; 4th September 2011 at 14:36.