[mythtv-users] Some HDTV programs won't play in mythfrontend
Brandon Beattie
brandon+myth at linuxis.us
Tue Sep 7 11:32:42 EDT 2004
Did you try mplayer? A third opinion may be helpful. Also send the
text dump from mplayer and I'll take a look. If you have a 15 second
clip of a stream that fails, let me know where I can grab it from and
I'll test it on my setup.
--Brandon
On Sat, Sep 04, 2004 at 01:56:44PM -0400, Kyle Rose wrote:
> Some DTV programs mythbackend captured with my pcHDTV card won't play
> in mythfrontend, but play just fine with xine. This affects both
> local and remote frontends. When I start playback of these programs,
> the video proceeds at a very slow pace with choppy audio. Usually
> within 10 seconds, myth exits with an assert failure (Assertion `pcm
> && params' failed). This behavior seems to affect some DTV channels
> more than others.
>
> Not quite sure what's going on here. Doubtful it's related to my
> specific audio setup since (a) xine has no problem with it and (b)
> Myth has the same problems both in AC3 passthrough mode and regular
> PCM mode. It could be that the ATSC decoding library used in myth is
> much slower than what xine uses: this might explain why I can play a
> strict superset of streams on my P4 3.2 that I can play on my dual
> Opteron, each processor of which is slower in 32 bit mode
>
> So, basically I'm at a loss to explain this behavior without further
> digging. Any suggestions?
>
> Kyle
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