[vlc] MPEG 4 encoding

[Jeroen Heijhoff]

Hello,

I'd like to encode MPEG-4, dimension 320x240 with a bitrate
between 0.5Mbps and 1.5Mbps. I'd like to now what the best settings are
for doing this with vlc or ffmpeg.

For doing this with ffmpeg I heard it should be possible to
accomplish this by using a combination of the following options:

-r rate             set frame rate (Hz value, fraction or abbreviation)
-s size             set frame size (WxH or abbreviation)
-intra              use only intra frames
-b_qfactor factor   qp factor between p and b frames
-i_qfactor factor   qp factor between p and i frames
-b_qoffset offset   qp offset between p and b frames
-i_qoffset offset   qp offset between p and i frames
-bf frames          use 'frames' B frames
-psnr               calculate PSNR of compressed frames
-re     

Does anybody ever succeeded getting a MPEG-4 file between 0.5 and 1.5 Mbps
with a good quality?

I hope somebody has positive experience doing this.

Greetings,

Jeroen Heijhoff

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