[XviD-devel] One clip with Bframes, quality vs size

[Christoph Lampert <chl@xxxxxxxxxxxxxxxx>]

Hi,

we got the rewritten ME running for Bframes and I attached a typical
graph:  It's the average bpp (logarithmic) versus average PSNR
for all combinations of 

fixed quant = 2,3,4,5,6
max_bframes = 0,1,2,3
bquant_ratio = 80,100,150,200,250 

and last red dot: fixed-quant 7, max_b=0

The colors correspond to max_bframes, 
red is 0, green is 1, blue is 2, purple is 3. 

It's obvious that for this clip, no encoding include B-frames can beat
non-bframes (red line), no matter how hard they try...

Christoph 

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Bframes-quality-vs-size.pgn
Description: application/chess-pgn