[MEncoder-users] Mencoder tv recording dropping frames

[Carl Beech]

Hi All,

I've been working on a personal video recorder program, with the idea of 
using mencoder as the main program to record from the tv. Only trouble 
is, when I use the setting:

mencoder tv:///1 -o mentest2.avi -tv 
driver=v4l2:width=720:height=576:amode=1:adevice=/dev/dsp -oac mp3lame 
-lameopts cbr:br=96 -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=4000

I get:
Pos:   0.2s      6f ( 0%)  0.00fps Trem:   0min   0mb  A-V:0.000 [0:0]
video buffer full - dropping frame
Pos:   0.3s      8f ( 0%)  0.00fps Trem:   0min   0mb  A-V:0.000 [0:0]
1 duplicate frame(s)!
Pos:   0.5s     12f ( 0%)  0.00fps Trem:   0min   0mb  A-V:0.000 [0:0]
video buffer full - dropping frame
Pos:   0.6s     14f ( 0%)  0.00fps Trem:   0min   0mb  A-V:0.000 [0:0]
1 duplicate frame(s)!
Pos:   0.7s     15f ( 0%)  0.00fps Trem:   0min   0mb  A-V:0.000 [0:0]
video buffer full - dropping frame
Pos:   0.8s     17f ( 0%)  0.00fps Trem:   0min   0mb  A-V:0.000 [0:0]
video buffer full - dropping frame

- I've got a 2Ghz dual core system with 2Gb of memory - looking at the 
system stats, the processor is around about 20 - 30% used and about 
500Mb free memory. (I'm running SuSE 11.0, and MPlayer rpm 
MPlayer-1.0rc2-4.pm.8).

I've done some experimentation and entering the extra option 
buffersize=256 in the driver options appears to cure the problem, 
trouble is, I don't know if this is the best way to do this?

Can anyone comment?

Many thanks

Carl.