[MPlayer-cygwin] Skipping frame and duplicate frames

Mon May 15 12:41:42 CEST 2006

I'm encoding a video from an image sequence but I get the video delayed with
the audio. I think is something about "Skipping frames" and "1 duplicate
frames" messages, but I don't know the cause.

>mencoder.exe mf://0*.jpg -mf w=320:h=240:fps=25:type=jpg -ovc lavc
-lavcopts vcodec=msmpeg4v2:vbitrate=201103:trell:mbd=2 -audiofile
audiodump.wav 
-oac mp3lame -lameopts cbr:br=32 -v -o output/file.avi

That's the output:

LAME version 3.96.1 (http://lame.sourceforge.net/)
Using polyphase lowpass filter, transition band:  5424 Hz -  5690 Hz

misc:

        scaling: 0.95
        ch0 (left) scaling: 0
        ch1 (right) scaling: 0
        filter type: 0
        quantization: xr^3/4
        huffman search: normal
        experimental Y=0
        ...

stream format:

        MPEG-2.5 Layer 3
        2 channel - joint stereo
        padding: off
        constant bitrate - CBR
        ...

psychoacoustic:

        using psychoacoustic model: 1
        psychoacoustic model: NSPsytune
        tonality estimation limit: 8871.700195 Hz (not relevant)
        using short blocks: channel coupled
        subblock gain: 1
        adjust masking: 0 dB
        adjust masking short: 0 dB
        quantization comparison: 9
         ^ comparison short blocks: 9
        noise shaping: 2
         ^ amplification: 0
         ^ stopping: 0
        ATH: using
         ^ type: 4
         ^ shape: 11 (only for type 4)
         ^ level adjustement: 0
         ^ adjust type: 0
         ^ adjust sensitivity power: 0
         ^ adapt threshold type: 2
        experimental psy tunings by Naoki Shibata
           adjust masking bass=0 dB, alto=0 dB, treble=0 dB, sfb21=0 dB
        using temporal masking effect: yes
        interchannel masking ratio: 0.001
        ...

MP3 audio selected

Skipping frame!

1 duplicate frame(s)!

1 duplicate frame(s)!

1 duplicate frame(s)!

1 duplicate frame(s)!

1 duplicate frame(s)!

1 duplicate frame(s)!

1 duplicate frame(s)!

1 duplicate frame(s)!

1 duplicate frame(s)!

1 duplicate frame(s)!

1 duplicate frame(s)!

1 duplicate frame(s)!

1 duplicate frame(s)!

1 duplicate frame(s)!

1 duplicate frame(s)!

1 duplicate frame(s)!

1 duplicate frame(s)!

1 duplicate frame(s)!

1 duplicate frame(s)!

1 duplicate frame(s)!

1 duplicate frame(s)!

1 duplicate frame(s)!

1 duplicate frame(s)!

CBR audio: 4000 bytes/sec, 104 bytes/block