[mythtv-users] V4L recording problem - live ok, sheduled bad

jafa hdtv at silicondust.com
Wed Sep 6 05:21:00 UTC 2006

>> Correction - it looks like sometimes it can record perfectly and
>> sometimes it records garbage (invalid MPEG4 data).
>> LiveTV sometimes works, but is failing for the program I am wanting to
>> watch now.
>> Likewise I found a scheduled recording that recorded ok.
>> I have switched to RTJPEG and it works ok... I will run some more tests
>> after the show.
> Any chance it is related to this:
> http://cvs.mythtv.org/trac/ticket/2061
> Nick

Ah - that is probably it. I have disabled the interlace options and Live 
TV is working. I will know in a day or so if it has solved the problem.

Everything is back to the defaults except for HQ (on) and scale bitrate 

Live TV is working but the picture quality is terrible - heavily 
over-compressed. The MPEG blocks make it look like a youtube recording :D.
I use the same MPEG4 transcoding settings for ATSC recordings and the PQ 
is great.

Side note - I tried using RTJPEG so I could watch LiveTV - it had 
interesting problems with "sticky" blocks - black parts of the screen 
displaying old blocks but in black-and-white.


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