It appears you have not yet registered with our community. To register please click here...

Go Back [M] > Madshrimps > WebNews
Intel Engineer Ports QuickSync Video Decoding to FFDShow Intel Engineer Ports QuickSync Video Decoding to FFDShow
FAQ Members List Calendar Search Today's Posts Mark Forums Read

Intel Engineer Ports QuickSync Video Decoding to FFDShow
Thread Tools
Old 29th September 2011, 07:52   #1
[M] Reviewer
Stefan Mileschin's Avatar
Join Date: May 2010
Location: Romania
Posts: 136,222
Stefan Mileschin Freshly Registered
Default Intel Engineer Ports QuickSync Video Decoding to FFDShow

An Intel engineer by the name of Eric Gur started an AVSForum thread indicating he had begun work on enabling Quick Sync support in FFDShow's video decoder. Quick Sync is typically known as Intel's hardware accelerated transcoding engine found in Sandy Bridge, however there are both encode and decode aspects to the engine. Gur's work focuses on the latter.

To access Intel's hardware video decode acceleration application developers typically turn to the DirectX Video Acceleration (DXVA) API. Sandy Bridge's hardware decode engine interfaces with DXVA and can return decoded frames not run on the x86 CPU cores. As we've lamented in the past, open source DXVA decoders haven't typically worked all that great for Sandy Bridge (or previous generation Intel GPUs, for that matter). FFDShow users have often avoided DXVA solutions as they can't be used with any custom post processing FFDShow filters.

Gur's Quick Sync filter for FFDShow gets around all of this. By accessing SNB's video decoder through Quick Sync, FFDShow gets full hardware acceleration by going through the Intel Media SDK and not through DXVA directly. It can also be used on non-Sandy Bridge systems, but, with higher CPU usage. The filter is obviously unsupported software but head on over to AVSForum if you're interested in checking it out.
Stefan Mileschin is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
Sandybridge - Z68 Chipset - RST and Quicksync an Interview with Dan Snyder of Intel jmke WebNews 0 22nd July 2011 08:58
Ask an Intel Solid State Drive Engineer jmke WebNews 0 13th January 2009 20:15
AMD/ATI and NVIDIA Graphics Cards in Video Decoding Tasks jmke WebNews 0 26th June 2007 09:13
Intel Bearlake boards kill PS/2 ports jmke WebNews 11 8th May 2007 09:36
Decoding an ancient computer Sidney General Madness - System Building Advice 1 3rd December 2006 22:09
ATI And NVIDIA Graphics Cards In Video Decoding Tasks jmke WebNews 0 3rd November 2006 07:51
ffdshow/Avisynth with Limited Sharpen how to guides for HTPC users jmke WebNews 0 21st December 2005 20:51
When is a Software Engineer Not a Software Engineer? Sidney WebNews 0 15th November 2004 06:25
Ex-Intel Engineer Comments on Pentium 4 “Tejas” Cancellation jmke WebNews 0 12th May 2004 14:24

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

All times are GMT +1. The time now is 11:32.

Powered by vBulletin® - Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO