[mythtv-users] Trouble with HD playback

[Jarod Wilson]

On Monday 01 November 2004 05:27, Art Morales wrote:
> hmm, silly question, how do I change from OSS to Alsa sound?

First off, obviously, you need to use ALSA drivers (which you may already be 
doing, with OSS emulation).

> I 
> commented out the oss stuff in settings.pro and uncommented the alsa
> stuff and now it gives a message that there is no sound available...

Yes, you also need to set an ALSA output device instead of /dev/dsp. /dev/dsp 
is OSS. Exactly what you need is a bigger question... You might start with 
trying /dev/adsp and ALSA:default. I believe I use ALSA:spdif to output via 
S/PDIF to my amp.

> What deinterlace is better? Do I select Bob? etc?

Define better. :-) Some of this is subjective. I like kernel deint myself, but 
its the most cpu-intensive. Bob is often recommended for HD.

> Also, to enable XvMC, do I need to disable XV? or does it supercede it?

Supercede.

> I'm so close to getting flawless playback... I can record fine, but
> nothing in HD plays back normally.  Also, I'm getting audio dropouts
> during playback.  The dropout is not in the audio perse, but in the
> decoding of the 5.1 sound.... I guess trying OSS is worth it.

Or rather, ALSA, since you've been using OSS, it sounds like. Be sure to 
enable "extra audio buffering" and try ALSA 1.0.5a (1.0.6a has been 
problematic w/HDTV for many people).

-- 
Jarod C. Wilson, RHCE
jcw at wilsonet.com

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