Bug#743197: mesa-vdpau-drivers slows down video output (radeon 3850HD)

[Andreas Boll <andreas.boll.dev@gmail.com>]

For Radeon cards upstream currently only supports accelerated video
decoding through the dedicated video decoding chip on UVD 2.2+ [1]. On
other Radeon cards it falls back to shader based decoding, which is
much slower and only supports mpeg1/2.

My advice is not to use/install this package for Radeon cards < UVD
2.2 and wait for proper support from upstream.

Thanks,
Andreas.

[1] https://en.wikipedia.org/wiki/Unified_Video_Decoder#UVD_enabled_GPUs