On 05/04/2005, at 7:47 AM, James Smith wrote:On Mon, 2005-04-04 at 22:58 +0930, Matthew Phillips wrote:On 04/04/2005, at 10:15 PM, James Smith wrote:Hi all,
I've just got MythTV installed happily, and am very pleased so far.
I'm
having a problem with MythMusic though - it seems to be reporting
track
lengths wrong (generally 20 seconds or so too long), and often skips
ahead
a few seconds at random while playing. Most of my music is in OGG
format,
so it may be something specific to this format, I'm not sure. Anyone
come
across anything like this?
My post of a few days ago ("MythMusic playback speed too fast") is
probably related - I'm seeing a similar thing for mp3 playback minus
the skipping (they just play fast and end early). But I'm pretty sure
it's been happening for a few OGG's in the collection too.
I had a bit of a hack around with module options to see if it was the
soundcard output bitrate or anything, but with no luck. I tried setting
the output bitrate explicitly to 44100Hz, but then everything
noticeably
slowed down - pitch changed and everything, but the timer on MythMusic
still ended a few seconds early, just as before, so I put it back.
I'm using the built-in AC97 sound device using the ATI IXP driver, so I
put this in modprobe.conf to change the bitrate:
options snd-atiixp ac97_clock=44100
If you're not getting pitch shifting though, I guess this isn't your problem either...
I'm assuming (perhaps incorrectly?) that if sound is working OK for other components of the system (which it is), then this is more likely to be related to the mp3/ogg decoders rather than the sound driver.
I haven't had time to look into this properly yet, and indeed I'm not even sure where to start playing. Does anyone know where to start tweaking the decoders used by MythMusic?
Don't know if the information in this post is still relevant, but maybe it
might point you in the right direction:
http://mythtv.org/pipermail/mythtv-users/2003-April/002234.html
Hmm, it's 2 years old but does sound very similar to what I'm seeing. Might be useful - thanks.
Matthew.
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