[MPlayer-users] Mencoder, skip frame

[Nicolas DEVERGE]

Hi,
I'm trying to encode a vob file, but I get the following error :

mencoder test.vob -aid 128 -sws 2 -srate 44100 -ovc lavc -lavcopts 
vcodec=mpeg4:vhq -vop scale=448:336 -oac mp3lame -lameopts br=96:cbr -o  
test.avi  -pass 1


MEncoder CVS-020702-15:38-3.0.2 (C) 2000-2002 Arpad Gereoffy (see DOCS!)

CPU: Advanced Micro Devices Athlon TB Thunderbird (Family: 6, Stepping: 2)
CPUflags: Type: 6 MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 0 SSE2: 0
Reading /root/.mplayer/codecs.conf: this codecs.conf is too old, incompatible 
with this mplayer release! at line 13
Reading /usr/local/share/mplayer/codecs.conf: 36 audio & 101 video codecs
File not found: 'frameno.avi'
font: can't open file: /root/.mplayer/font/font.desc
font: can't open file: /usr/local/share/mplayer/font/font.desc
success: format: 0  data: 0x0 - 0x407C000
Detected MPEG-PS file format!
VIDEO:  MPEG2  720x576  (aspect 2)  25.00 fps  10000.0 kbps (1250.0 kbyte/s)
[V] filefmt:2  fourcc:0x10000002  size:720x576  fps:25.00  ftime:=0.0400
Detected audio codec: [a52] drv:14 (AC3-liba52)
Opening audio decoder: [liba52] AC3-liba52
Using 3DNowEx optimized IMDCT transform
AC3: 2.0 (stereo)  48000 Hz  384.0 kbit/s
Using MMX optimized resampler
AUDIO: srate=48000  chans=2  bps=2  sfmt=0x10  ratio: 48000->192000
libavcodec: CPU flags: mmx mmxext 3dnow
Opening video filter: [expand=-1:-1:-1:-1:1]
Expand: -1 x -1, -1 ; -1  (-1=autodetect) osd: 1
Opening video filter: [scale=448:336]
==========================================================================
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
VDec: vo config request - 720 x 576 (preferred csp: Mpeg PES)
Sorry, selected video_out device is incompatible with this codec.
VDecoder init failed :(
Opening video decoder: [libmpeg2] MPEG 1/2 Video decoder v2.0
libmpeg2: Using MMXEXT for IDCT transform
libmpeg2: Using MMXEXT for motion compensation
VDec: vo config request - 720 x 576 (preferred csp: Planar YV12)
Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
SwScaler: reducing / aligning filtersize 8 -> 8
SwScaler: reducing / aligning filtersize 8 -> 8
SwScaler: reducing / aligning filtersize 8 -> 7
SwScaler: reducing / aligning filtersize 8 -> 7

SwScaler: BICUBIC scaler, from Planar YV12 to Planar YV12 using MMX2
videocodec: libavcodec (448x336 fourcc=58564944 [DIVX])
High quality encoding selected (non real time)!
Detected video codec: [mpeg12] drv:1 (MPEG 1 or 2)
==========================================================================
MP3 audio selected
Writing AVI header...
Pos:   0.0s      1f ( 0%)   0fps Trem:   0min   0mb  A-V:0.000 [0:0]
skip frame!!!
Pos:   0.1s      3f ( 1%)   0fps Trem:   0min   0mb  A-V:0.008 [0:0]
skip frame!!!
Pos:   0.1s      5f ( 1%)   0fps Trem:   0min   0mb  A-V:0.016 [0:0]
skip frame!!!
Pos:   0.2s      7f ( 1%)   0fps Trem:   0min   0mb  A-V:0.024 [0:0]
skip frame!!!

and again for all frames.

I searched in the ML, and I found some users which have the same problem, but 
no solution.
I tried also with the -ofps parameter or -mc, same problem.
It seems that it is because my vob is interlaced.
So have you planned to deal with this kind of file ?
Thanks in advance,
Nico