[MEncoder-users] wrong framerate for 3gp files..

[DD DD]

Hi

I am trying to encode a 3gp file to flv.
However, mencoder detects the wrong frame rate, and resulting flv gets that.


$ mplayer  -vo null -ao null -frames 0  -identify   sonyz520aphone.3gp

<snip>
MPlayer dev-SVN-r19503-4.0.2 (C) 2000-2006 MPlayer Team
.
.

ISO: File Type Major Brand: 3GPP Profile 5
Quicktime/MOV file format detected.
ID_VIDEO_ID=0
ID_AUDIO_ID=1
VIDEO:  [s263]  176x144  24bpp  2.551 fps    0.0 kbps ( 0.0 kbyte/s)
ID_FILENAME=sonyz520aphone.3gp
ID_DEMUXER=mov
ID_VIDEO_FORMAT=s263
ID_VIDEO_BITRATE=0
ID_VIDEO_WIDTH=176
ID_VIDEO_HEIGHT=144
ID_VIDEO_FPS=2.551
ID_VIDEO_ASPECT=0.0000

</snip>

This video actually has a framerate of 9.89 fps, but mencoder detected 2.55fps.

If this framerate is explicitely passed to mencoder, it encodes the video
correctly.

Is there a way for mencoder to detect the correct frame rate? Am I missing
something here?

Thanks,
DD.