Results 1 to 10 of 174

Thread: Installing latest Open Source ATI drivers under Ubuntu 8.04

Threaded View

  1. #38
    Join Date
    Oct 2007
    Location
    Toronto-ish
    Posts
    7,543

    Default

    Quote Originally Posted by Kjella View Post
    An accelerator could be written using shaders like any GPGPU application but noone's got a working implementation, only a few unfinished summer of code projects. All that could seem busy trying to make 3D acceleration work instead.
    General consensus is that implementing shader-based video decode over Gallium3D makes more sense than doing a hardware-specific implementation for every different GPU family. The current focus on 3D work reflects that :

    Classic 3D => Gallium3D => video decode over Gallium3D

    One thing I haven't had time to check is whether XvMC can be useful for H.264 and VC-1 if only the MC portion of the API were used (ie not IDCT, where the MPEG-2 coefficients definitely won't work). My guess is that XvMC in its current form simply won't fit with the newer video formats, so there's a strong argument for implementing a Gallium3D backend directly in the existing decoder stacks.
    Last edited by bridgman; 09-08-2009 at 10:33 AM.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •