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 -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
