FYI
http://www.phoronix.com/scan.php?page=news_item&px=Njg4Ng
Posted by Michael Larabel on November 29, 2008
Last month NVIDIA brought PureVideo features to Linux through a new API they call the Video Decode and Presentation API for Unix in their NVIDIA 180.xx driver.
NVIDIA also provided a set of patches that enabled MPlayer to use this API that offloads video decoding and other tasks to the GPU. The formats supported by VDPAU are currently H.264, MPEG, WMV3, and VC-1. In our VDPAU benchmarks we found this NVIDIA video implementation to work very well and the CPU usage was much lower during video playback.
With NVIDIA providing a header file in the driver that details this API, the community has been able to study VDPAU and one of the first fruits of this work is now available. Committed to MythTV is a VDPAU decoder.
VDPAU in MythTV has full OSD (On-Screen Display), de-interlacers, color controls, and codecs support through the Video Decode and Presentation API for Unix. MythTV will automatically use VDPAU when it's compatible with the video format otherwise it falls back to using X-Video. According to those that have tested it already, this community VDPAU implementation in MythTV actually exceeds that of NVIDIA's patch in MPlayer when it comes to quality and its capabilities.
This should be great news to anyone with a recent NVIDIA graphics card that uses MythTV for their HTPC needs.
Yes, I know. I'm sadly sitting here compiling Myth for the first time in over four years. I hope I won't like it 'cause I don't want to leave VDR..... But multiple frontends and GPU decoding are the two things that are on top of my Christmas wish-list, so maybe after all. I have introduced VDR to at least 20 people (mostly windows-users) over the years, but this may be the day it ends. /Magnus H
On 1 Dec 2008, at 21:49, Magnus Hörlin wrote:
I have introduced VDR to at least 20 people (mostly windows-users) over the years, but this may be the day it ends.
It appears you think that VDR will never get a plugin that can utilise the VDPAU (or similar) api?
On Monday 01 Dec 2008, Torgeir Veimo wrote:
I assume it could be incorporated into softdevice using a patched version of ffmpeg because that's what softdevice uses to do the actual decoding steps. Not looked into it, though.
I don't have an nVidia card on my vdr box so I can't play about with this: no DVB-T HD stuff in the UK for several years to come so I'm happy using CPU grunt for MPEG2 decoding for now.
Cheers,
Laz
On Mon, Dec 1, 2008 at 12:04 PM, Laz laz@club-burniston.co.uk wrote:
DVB-T2 HD starts broadcasting in the UK in a phased rollout in 2009.
It might be coming sooner than you think!
On Mon, Dec 1, 2008 at 1:56 PM, Torgeir Veimo torgeir@pobox.com wrote:
nVidia provided patch for ffmpeg that is used by all the players around (xine as well?), so I guess we'll see VDPAU ffmpeg version soon. There is some activity on ffmpeg developers list to review the patches from nVidia and integrate them into release.
-----Ursprungligt meddelande----- Från: vdr-bounces@linuxtv.org [mailto:vdr-bounces@linuxtv.org] För Torgeir Veimo Skickat: den 1 december 2008 12:57 Till: VDR Mailing List Ämne: Re: [vdr] MythTV Adds Support For NVIDIA VDPAU
On 1 Dec 2008, at 21:49, Magnus Hörlin wrote:
I have introduced VDR to at least 20 people (mostly windows-users) over the years, but this may be the day it ends.
It appears you think that VDR will never get a plugin that can utilise the VDPAU (or similar) api?
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Alex Betis -
Goga777 -
Laz -
Magnus Hörlin -
Morfsta -
Torgeir Veimo