GPU YUV2RGB for older NVidia cards

Description

Video output driver for MPlayer utilizing GPU for YUV(4:2:0) to RGB conversion

Download

Patch (2_glnvrc_mplayer.patch.gz) (5.2k)

Patch is against SVN version of MPlayer revision 20332

To apply:
$ cd /somewhere/svn/mplayer
$ zcat [name-of-the-patch].patch.gz | patch -p0

Compatibility

Should work on most NVidia cards, needs

• Two register combiner stages and one texture unit (second can be used for OSD should that ever be implemented)
• This particular implementation needs OpenGL and SDL

Problems

No OSD support currently

Not well tested

Needs SDL

MMX packer is naive

Some YV12 vs I420 issues

Performance

According to APC it is not any worse than hardware overlay, at least on:

• Machine #1
  • AMD Athlon(tm) Processor 1050.052MHz
  • nVidia Corporation NV11 [GeForce2 MX/MX 400]
  • Vanilla Linux kernel 2.4.30
  • nVidia binary drivers 6629
  • XFree86 4.2.0
• Machine #2
  • AMD Athlon(tm)64 X2 Dual Core Processor 3800+
  • nVidia Corporation [GeForce 6150 (integrated)]
  • Vanilla Linux kernel 2.6.17.6
  • nVidia binary drivers 8774
  • X.Org 6.8.2

Background

Original post (the link referenced there is now here)

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