Dear developers, mailing-list readrs,

Trying to record from analog video camera playback with cheap bt878 
capture card, kernel 2.6.20 (Fedora-3) using lavrec.

xawtv works fine, however, when start recording with lavrec xawtv screen
goes blue and remains blue even after stopping lavrec. Image can be
restored in xawtv if I change input from composite1 to something else and
back to composite1. The recorded movie is blue screen either with glav or
with Mplayer. The same thing happens if I don't use xawtv, just record
with lavrec.

There are no error messages, recording seems progressing well. There is a
warning about "negative priority" and "Pthread" when lavrec starts. I
googled it but could not find remedy for this.

While I'm not a linux expert I begin to understand how it works. I suspect
an input problem. xawtv hwscan shows /dev/video0 while Ronald Bultje's
lavrec man indicates LAV_VIDEO_DEV /dev/video. So I tried to export
LAV_VIDEO_DEV=/dev/video0 to no avail. I also tried "alias video video0"
in modprobe.conf, again, without success.

Here is the command to start lavrec (no audio as a stepwise debugging
method):

lavrec --software-encoding -a 0 -f a -g 352x288 -i n test.avi

The recorded file size seems normal, but content is either hidden or
content is blank.

If I record with xawtv streamer I do get a video:

streamer -t 0:10 -f jpeg -r 23.976 -s 352x288 -o video.avi

video.avi plays with mplayer. On the otherhand, if I try lavplay video.avi
I get this:

lavplay1.6.2
lavtools version 1.6.2
**ERROR: [lavplay] File video.avi has 23.976212 frames/sec, chose norm
with +[np] param

Now I don't underfstand this last one. If I use lavplay test.avi I have no
error but blue screen. If I use video.avi to play I get the error above,
even though mplayer plays video.avi. I tried all sorts of command options
in lapvplay, such as -o n or --norm n I get a list of command options.
With -o n it says: invalid option --o, in other words it converts -o to
--o when reading command line. I must be doing something stupid or
trivially erroneous.

I would appreciate any help pr advice.

Thank you,

Janos


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