[mythtv-users] VDPAU can't decode ffmpeg MPEG-4?

Jim Stichnoth stichnot at gmail.com
Tue Jan 19 14:08:10 UTC 2010

On Mon, Jan 18, 2010 at 5:54 PM, Robert McNamara
<robert.mcnamara at gmail.com> wrote:
> On Mon, Jan 18, 2010 at 5:38 PM, Jim Stichnoth <stichnot at gmail.com> wrote:
>> I have a non-lossless transcoder profile that uses the MPEG-4 video
>> codec and the MP3 audio codec.  I use VDPAU Normal as my playback
>> profile, on an ION system.  I just noticed from the logs that these
>> files are resulting in software decoding.  This causes some stuttering
>> on 1080i recordings.
>> Is this expected?  Are there some options that I should or shouldn't
>> use in that transcoder profile that would allow for hardware decoding?
>> Jim
> The MPEG-4 in question is MPEG-4 Part 2 ASP, of which common examples
> are XViD/DiVX, not H.264.  So no ION box has hardware accel of these
> codecs.  The VDPAU "C" cards like the GT2x0 series can, but not an
> ION.

That makes sense.  For future transcodes like this, is there a way to
get a transcoder profile to generate H.264?  Or is this something
better done with a custom job?


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