[mythtv-users] choppy playback on new danish dvb channels

belcampo belcampo at zonnet.nl
Thu Nov 5 23:15:06 UTC 2009


Nick Rout wrote:
> On Fri, Nov 6, 2009 at 11:11 AM, Michael Frandsen
> <mf1910 at vip.cybercity.dk> wrote:
>> Denmark finally closed down analogue tv broadcast and most new channels
>> transmitted in H264 mpeg4.
>> I am running an older combined backend/frontend with a turion processor
>> and 5200FX.
>> At first I was only able to view the HD channel (on my desktop pc/core2
>> 3GHz/8800GT) transmit 720p until I today figured out to installed new
>> codec for the lower resolution.
>> When I view the channels with mythtv the play back is very choppy but
>> the strange is that it seems the framerate is good enough but the
>> problem is that it seems the frames not played in proper order giving a
>> very choppy playback especially when a lot of movement in picture.
>> The playback problems are alike in both h264 704x576 50fps and 1280x720
>> 100fps.
>> The strange is that vlc can play back without these problems while
>> mplayer has same problems as mythtv.
>>
>> I have no idea how to proceed from here I googled for other with similar
>> problems but without luck so. I hope any of you guys can give me
>> directions how to find the problem.
> 
> What version of myth are you running? There are huge improvements in
> 0.22 in terms of handling h264.
> 
> You could also consider getting a vdpau capable video card (unless
> your only choice is AGP).
If VLC does NOT need this, I think it's circumventing the problem.
> 
> 
> 
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