[MEncoder-users] Mencoder adding AVI file header to MPEG2 capture from V4L device?

Nico Sabbi nsabbi at tiscali.it
Fri Jun 10 21:47:14 CEST 2005


Brian Keener wrote:

>>
> I added "-of mpeg" and now I'm experiencing horribly audio/video sync 
> problems.  At random intervals, I get hundreds of
>
> INITIAL DELAY of 0 frames   0fps Trem:   0min   0mb  A-V:0.000 [0:0]
> INITIAL DELAY of 0 frames   0fps Trem:   0min   0mb  A-V:0.000 [0:0]
> INITIAL DELAY of 0 frames
> INITIAL DELAY of 0 frames   0fps Trem:   0min   0mb  A-V:0.000 [0:0]
> INITIAL DELAY of 0 frames
> INITIAL DELAY of 0 frames   0fps Trem:   0min   0mb  A-V:0.000 [0:0]
> INITIAL DELAY of 0 frames
>
> interspersed with hundreds of
>
> ERROR: SCR: 20.704, VPTS: 20.433, DELTA=-0.271 secs
> ERROR: SCR: 20.728, VPTS: 20.467, DELTA=-0.261 secs
> ERROR: SCR: 20.751, VPTS: 20.500, DELTA=-0.251 secs
> ERROR: SCR: 20.779, VPTS: 20.533, DELTA=-0.245 secs
> ERROR: SCR: 20.802, VPTS: 20.567, DELTA=-0.235 secs
> ERROR: SCR: 20.849, VPTS: 20.600, DELTA=-0.249 secs
> ERROR: SCR: 20.888, VPTS: 20.633, DELTA=-0.254 secs
> ERROR: SCR: 20.915, VPTS: 20.667, DELTA=-0.248 secs
> ERROR: SCR: 20.935, VPTS: 20.700, DELTA=-0.235 secs
> ERROR: SCR: 20.962, VPTS: 20.733, DELTA=-0.228 secs
> ERROR: SCR: 20.981, VPTS: 20.767, DELTA=-0.215 secs
> ERROR: SCR: 21.040, VPTS: 20.800, DELTA=-0.240 secs
> ERROR: SCR: 21.079, VPTS: 20.833, DELTA=-0.245 secs
>
> And end result is unusable.
>
> I searched man, and the mailing list archive, and didn't get anything 
> useful.
>
> Brian K
>

please, try with -vf  harddup -noskip,and remember to set a low keyint 
in lavcopts,
such as keyint=25




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