I am trying to get my head around ATSC / AC3 and have discovered some
ATSC Clear Qam channels disappear when update channels is on. Some
playing around with pat.c and the isyslog command, I have discovered
they appear to have a different type than normal.. Normally Mpeg2 is
type 2, but these are 0x80? I notice they do the same thing with AC-3
(0x81 instead of 6) so probably something similar is going on.
Sep 2 23:11:29 oac vdr: [5815] pat.c stream type = 80, pid = 2240
Sep 2 23:11:29 oac vdr: [5815] pat.c stream type = 81, pid = 2241
Sep 2 23:11:29 oac vdr: [5815] pat.c wants to update channel
Sep 2 23:11:29 oac vdr: [5815] changing pids of channel 355 from
0+0=0:0;22...@106:0:0 to 2240+2240=128:0;22...@106:0:0
If hard coded with vpid and pid of 2240=2 and update channels of, then
the picture shows.
I will attempt to diagnose tomorrow, probably by adding another Case
0x80 under Case 2 in pat and remux but wanted to point this out for
future reference as I know most of the development is done outside of
the ATSC world..
Then it's back to working out why my pvr-hd ac-3 (h264 and ac3 @ 720p)
don't work in vdr-xine and xbmc/vnsi.. (although do work in
vdr-xineliboutput and xbmc/streamdev..)
--
Rob Davis
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