[mythtv] Re: [mythtv-users] HDTV recording error: IOBOUND -
cpinkham at bc2va.org
Sat Jul 3 01:23:13 EDT 2004
> >If you compiled your own install of Myth, you could try bumping up the
> >recording file writer buffer size from its default of 2 Megs. Edit
> >mytthv/libs/libmythtv/RingBuffer.cpp and change the TFW_BUF_SIZE line
> >near the top to 4*1024*1024 instead of 2*1024*1024. I don't know
> Thanks for the tip Chris. Unfortunately, I'm not compiling my own. I'm
> using atrpms CVS bits. Since this is ATSC, then the bitrate is about
> 19.3 megabits per second (yep... 19.3). I think you've nailed it This
> seems like an awfully small buffer for HDTV. You'd think that more
> folks would run into the problem. Maybe folks aren't looking at their
> log files and their more tolerant of glitches in playback... dunno...
I see it occasionally and have committed a few changes recently to the
ThreadedFileWriter I mentioned. I get these occasionally on my setup when
I have 3 tuners recording and 2-3 shows flagging and I'm watching another
show. I've considered bumping up the 2Meg buffer to 4Megs, so this is
another argument for doing that.
> I'm going to crosspost this response over to the dev list and see if
> some of the HDTV developers (John Patrick Poet etc...) think that
> something should be done there.
I'll see about getting this increased or something for 0.16.
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