On Tue, 2008-04-08 at 21:30 -0400, Andy Walls wrote:
> I've done basic testing of ATSC functions of the cx18 driver with my
> HVR-1600:
> 
> 1. Fedora 7's scandvb found all the stations I expected it to find. OK.
> 
> 2. mplayer plays the 720p 16:9 stations nicely, but bombs out with a
> gripe about liba52 CRC error.  mplayer also doesn't display the
> 1900x1080 stations nicely at all on my 1280x1024 display (go figure) and
> also bombs out with a gripe about the liba52 CRC error after a while.  I
> never gave mplayer any hints on how to play the sound or scale the
> image.  For stations with no sound (e.g. weather radar), mplayer never
> bombs out.
> 
> The a52 CRC errors did not correspond to any uncorrectable errors as
> reported by the scrolling azap output.
> 
> I haven't updated mplayer and related libraries in a long time (I hate
> my dial-up), but I guess it's time.  This is probably just a user-space
> and user problem.
> 

I found an interesting thread about mplayer and a52 CRC errors: 

http://pchdtv.com/forum/viewtopic.php?t=1048&postdays=0&postorder=asc&start=84

(Be warned, the above thread contains mplayer developer bashing.)

Anyway, I've found a way that appears to have mplayer behave a bit nicer
in the face of apparently mplayer induced "CRC errors":

$ cp .azap/channels.conf .mplayer/channels.conf
$ mplayer dvb://WFOO-HD -framedrop -cache 8192

mplayer still shows CRC errors, but it doesn't bomb out.


Do not use something like the following:

$ azap -r WFOO-HD
$ cat /dev/dvb/adapter0/dvr0 | mplayer -

or

$ azap -r WFOO-HD
$ mplayer /dev/dvb/adapter0/dvr0 

as mplayer dies after the CRC error.


Regards,
Andy

> 3. I haven't setup MythTV yet to use the ATSC portion of the card.  My
> version of MythTV is fairly old and in it's global settings it asks for
> the TV standard NTSC or ATSC.  I need to figure out how to setup my old
> MythTV for the hybrid setup, and/or upgrade MythTV.
> 
> Again, user-space and user problems.
> 
> 
> When I resolve my user-space issues, get a new 4 way splitter, and make
> some new cables, I'll do some simultaneous stream testing.
> 
> 
> 
> Thanks for your continued efforts.
> 
> Regards,
> Andy


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