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The VAAPI for GPU accelered video decoding on Linux is really interesting. I don't know enough about video to understand how low-level it is from the MPEG2 exemple on their web site: does it have to be a codec already supported by your video card as I understand, or can you code new ones with existing building blocks?

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It needs to be a codec supported by the video card.

See http://en.wikipedia.org/wiki/Nvidia_PureVideo#Table_of_PureV... for a list of Nvidia GPUs and which codecs they support.

Oh, so that's a disadvantage for VP8 against h264 on current cards. I wonder how well such a decoding can perform implemented on OpenCL/CUDA vs the pure "supported" version..

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