[MPlayer-users] {ERROR5,c=?} error MSG... What is it?

[Kalin KOZHUHAROV]

Lately when encoding DVDs with lavc, I sometimes very often get ERROR5 like:
cat [12345].vob | mencoder -v -ifo movie.ifo -aid 128 -vobsubout Police_Academy_1 -vobsuboutindex 2 -vobsuboutid en -sid 2 -ovc frameno -ofps 23.976 -oac mp3lame -lameopts vbr=0:br=96:mode=1 -o frameno.en.avi -

...
  {ERROR5,c=0}  52f ( 0%) 307fps Trem:   0min   0mb  A-V:0.068 [0:95] A/Vms 1/0 D/B/S 5/0/7 
  {ERROR5,c=1}  
  {ERROR5,c=0}  
  {ERROR5,c=0}  62f ( 0%) 307fps Trem:   0min   0mb  A-V:0.073 [0:96] A/Vms 1/0 D/B/S 5/0/7 
...
  {ERROR5,c=2}  30f ( 0%) 306fps Trem:   0min   0mb  A-V:0.040 [0:96] A/Vms 1/0 D/B/S 5/0/10 
...
  {ERROR5,c=10}  9f ( 0%) 301fps Trem:   0min   0mb  A-V:0.062 [0:96] A/Vms 1/0 D/B/S 5/0/40
  {ERROR5,c=31}  7f ( 0%) 305fps Trem:   0min   0mb  A-V:0.045 [0:95] A/Vms 1/0 D/B/S 5/0/120 
  {ERROR5,c=0}  82f ( 0%) 305fps Trem:   0min   0mb  A-V:0.045 [0:96] A/Vms 1/0 D/B/S 5/0/120 
Pos:5784.0s 138792f ( 0%) 305fps Trem:   0min   0mb  A-V:0.003 [0:96] A/Vms 1/0 D/B/S 5/0/120 
demux_mpg: Progressive seq detected, leaving 3:2 TELECINE mode
  {ERROR5,c=0}  93f ( 0%) 305fps Trem:   0min   0mb  A-V:-0.001 [0:95] A/Vms 1/0 D/B/S 5/0/120 
Warning! FPS changed 23.976 -> 29.970  (-5.994000) [4]  
Pos:5784.4s 138801f ( 0%) 305fps Trem:   0min   0mb  A-V:-0.002 [0:96] A/Vms 1/0 D/B/S 5/0/120 
demux_mpg: 3:2 TELECINE detected, enabling inverse telecine fx. FPS changed to 23.976!  
  {ERROR5,c=0}  05f ( 0%) 305fps Trem:   0min   0mb  A-V:0.014 [0:95] A/Vms 1/0 D/B/S 5/0/120 
  {ERROR5,c=0}  18f ( 0%) 305fps Trem:   0min   0mb  A-V:0.068 [0:95] A/Vms 1/0 D/B/S 5/0/120 
...


Searching the docs and Google didn't reveal anything, maybe I should look in the source...

It usually is c=0 and c=1 errors, but now on Police Academy 1, I get constantly increasing c...

What is the reason/meaning for the error?
What is "c=" for?

Also why does MEncoder sometimes switch fps like the above example, even if they are explicitly stated on the command line :-(

Is just the DVD/my DVD-ROM/my SCSI card/cable broken?

Kalin.

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