Wondering why changing the fps from 6 to 1 (-f 6, -f 1) would cause the file size to go from 60m to 158m?

Carl K

transcode -i files.txt \
               -x imlist,null \
               -g 1440x900 \
               --use_rgb \
               -z \
               -y ffmpeg,null \
               -F mpeg4 \
               -o chipy090214.avi \
               -H 0 \
               -f 6

[EMAIL PROTECTED]:/media/disk$ ls -lh chipy090214*.avi
-rw-r--r-- 1 carl carl  60M 2008-02-16 00:49 chipy090214.avi
-rw-r--r-- 1 carl carl 158M 2008-02-16 01:09 chipy090214b.avi

[EMAIL PROTECTED]:/media/disk$ tcprobe -i chipy090214.avi
[tcprobe] RIFF data, AVI video
[avilib] V:  6.000 fps, codec=DIVX, frames=1649, width=1440, height=900
[tcprobe] summary for chipy090214.avi, (*) = not default, 0 = not detected
import frame size: -g 1440x900 [720x576] (*)
       frame rate: -f 6.000 [25.000] frc=0 (*)
   no audio track: use "null" import module for audio
           length: 1649 frames, frame_time=166 msec, duration=0:04:34.833

[EMAIL PROTECTED]:/media/disk$ tcprobe -i chipy090214b.avi
[tcprobe] RIFF data, AVI video
[avilib] V:  1.000 fps, codec=DIVX, frames=1649, width=1440, height=900
[tcprobe] summary for chipy090214b.avi, (*) = not default, 0 = not detected
import frame size: -g 1440x900 [720x576] (*)
       frame rate: -f 1.000 [25.000] frc=9 (*)
   no audio track: use "null" import module for audio
           length: 1649 frames, frame_time=1000 msec, duration=0:27:29.000

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