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Teegedeck · 19th October 2005, 08:56

AQ seems to work fine for strong compression. I tested with various constant-quantizer encodings of the same clip and found that encoding at quantizer=27 without AQ yielded a filesize just above that produced by quant=29 + AQ. The encode at quant=27 without AQ exhibited extensive blocking (deblock=-1) while the one with AQ didn't and thus looked very acceptable, I daresay 'good'.

This should mean AQ makes the higher quantizers in x264 really worthwhile for the first time - because with AQ it's not necessary anymore to use strong deblocking that turns the whole picture into jelly.

Well done, Haali!

19th October 2005, 08:56	#46 \| Link
Teegedeck Moderator, Ex(viD)-Mascot Join Date: Oct 2001 Posts: 2,564	AQ seems to work fine for strong compression. I tested with various constant-quantizer encodings of the same clip and found that encoding at quantizer=27 without AQ yielded a filesize just above that produced by quant=29 + AQ. The encode at quant=27 without AQ exhibited extensive blocking (deblock=-1) while the one with AQ didn't and thus looked very acceptable, I daresay 'good'. This should mean AQ makes the higher quantizers in x264 really worthwhile for the first time - because with AQ it's not necessary anymore to use strong deblocking that turns the whole picture into jelly. Well done, Haali! __________________ It's a man's life in Doom9's 52nd MPEG division. "The cat sat on the mat." ATM I'm thoroughly enjoying the Banshee - a fantastic music player/ripper for Linux. Give it a whirl!