[mythtv-users] mplayer digital vs. mythtv digital

Kevin Ross kevin at familyross.net
Sat Jul 24 23:03:22 UTC 2010

On 7/24/2010 7:59 AM, Michael R. Hines wrote:
> Hi,
> I'm trying to determine why mythtv's digital live TV capture has 
> different output than mplayer's live TV capture.
> So, I did the following:
> bash$ scan /usr/share/dvb/atsc/us-NTSC-center-frequencies-8VSB | tee
> .mplayer/channels.conf # found several channels, great
> bash$ mplayer dvb://NJN-1    # this is my local PBS station
> The output of mplayer is fantastic. Nice signal. Smooth audio/video
> playback.
> But when I play it back in mythtv, it's choppy with lots of beeping
> noises in the audio. The output on my external TV tuner is also very
> good, but for some reason, myth just isn't playing it back as "nicely"
> as mplayer.
> Any reason for this? How could I track this problem down?
> Thanks!
> - Michael R. Hines

What is the output of top when playing with mplayer and with mythtv?  
What playback profile are you using in mythtv?  Try the slim profile (I 
assume you aren't using VDPAU).

To get debugging output from mythtv, run mythfrontend -v playback from a 
terminal window.

-- Kevin

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