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Old 22nd October 2004, 18:55   #16  |  Link
Sagittaire
Testeur de codecs
 
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Join Date: May 2003
Location: France
Posts: 2,484
I think that Average PSNR isn't a good tool for testing Rate Control quality: Overall PSNR or Frame PSNR graph are very better. Average PSNR must be very better with CBR than VBR. For example sample with very long/very "low motion" part and very short/very "high motion" part done very better Average PSNR for CBR.

Best PSNR mode for RV10 use rcHighBitrateReduce = 60. it's a very high reduction for bitrate modulation. Quality is higher for "low motion" but worst for "high motion". it's a very good strategy for Average PSNR but not for Overall PSNR.
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Le Sagittaire ... ;-)

1- Ateme AVC or x264
2- VP7 or RV10 only for anime
3- XviD, DivX or WMV9

Last edited by Sagittaire; 22nd October 2004 at 19:08.
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