DivX uses a higher bitrate to compress the final section

[yingx2]

Does anyone ever notice that DivX tends to use a higher bitrate to compress the ending part of a movie when adopting 2-pass mode?

For example, if you cut your compresssed, 120 min movie of 700MB into 2 parts--the first 115 min part and the last 5 min part--you might end up with two files with two totally different bitrates. The first part could only amounts to 600MB while the last 5 minute part stoled the rest 100MB from you.
( I was a bit exaggerating, of cousre)

I've done some experiments on this and got similar results. It doesn't matter whether your last part is like ending credits or a low/fast motion secene, the last 5-10 minute clip must be really really big!

It appears that divX has a natural tendency to encode the final section of a film with an extremely high bitrate so that the final, average bitrate can be close to the bitrate we enter in the codec setting menu.

Any ideas?

Another question:

I always keep the original resolution of my soure(usually 740x480), but I remove black borders without cropping the picture. Is this called shrinking? Which resizing filter should i use if I prefer sharp images?

Please give me some input.

[yingx2]

I meant 720x480...Sorry!

[dragoman]

Hi,

This is just the codec trying to make your desired filesize.

Happens quite a bit when the movie is more compressible than expected and the codec has a lot of extra bits to use.

Try using the "encode credits at lower quality" feature in Gknot, or do it yourself, it's quite easy.

That way more bits are spent on the movie and less on the credits.

dragoman