[mythtv-users] HDTV on Myth -- is it a "myth?"

[Brandon Beattie]

On Tue, Oct 12, 2004 at 10:45:10AM -0600, John Patrick Poet wrote:
> 
> On Tue, 12 Oct 2004, Brandon Beattie wrote:
> 
> > As for hard drive access causing the audio/video corruption I doubt it,
> > because I've rewound and watched the segment again and it is still
> > there.
> 
> 
> I have watched a show just a few minutes behind as it was recording.  My
> backend was doing lot's of other tasks and I was seeing pixelization.  I
> could rewind, and see the exact same pixelization.
> 
> I shut down those other tasks, and the pixelization went away.  I could
> rewind back to the begining and see the pixelization, but once I caught up
> to the point where I shut down the other processes, the corruption was gone.
> 
> I never see any errors in the mythbackend log indicating it could not write
> to the disk fast enough, but it sure looks like that can happen.  Maybe it
> is not a problem with myth writing the file, but with myth reading from the
> HD-2000 buffer fast enough?  Maybe the HD-2000 driver needs a larger buffer?
> 
> John

I've wondered about this for some time, but have not had time to prove
it.  I also thought that the kernel should take care of holding the data
in memory until it has the time to write it to disk? Am I wrong with
this thought?  Adding a buffer may be helpful though.

--Brandon

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