Re: mencoder - Skipped and duplicate frames when recording from TV

[deloptes <deloptes@yahoo.com>]

Marko Randjelovic wrote:

> I use Squeeze on this machine. It has TV card:
> Conexant Systems, Inc. CX23880/1/2/3 PCI Video and Audio Decoder
> 
> When recording from this TV card with mencoder, every 0.15s on average,
> a message is output from mencoder:
> 
> 1 duplicate frame(s)!
> 
> or
> 
> Skipping frame!
> 
> When playing recorded file, picture and sound are very loosely
> synchronized.
> 
> Everything worked fine until I reinstalled system. After that, I tried
> to change relevant packages' versions hoping that will resolve the
> issue, but it didn't.
> 
> Regards

Hi,
what are the options you are using for mencoder. Perhaps the problem is not
in the encoder, but your hardware is slow?

try adjusting the encoder and check if it has effect

before it all got HD I used PAL in europe-west

TV_DRV="driver=v4l2:outfmt=yuy2:width=640:height=480"
TV_NORM="norm=PAL:normid=0:chanlist=europe-west"
TV_DEV="device=/dev/video0:input=0"
TV_AUD="forceaudio:forcechan=2:audiorate=48000:amode=1:audioid=1:adevice=/dev/dsp1"

mencoder -tv $TV_DRV:$TV_NORM:channel=$CH:$TV_DEV:$TV_AUD \
         -ovc lavc -lavcopts \          
                vcodec=mpeg4:vqmin=2:vbitrate=1200:mbd=1:keyint=300 \
         -oac lavc -lavcopts acodec=mp3:abitrate=128 \
         -vf scale,pp=lb,denoise3d -o output.avi tv://

and this worked pretty well - but this was like 6y ago. Now I would use at
least 720x400 

I hope this helps