Doom9's Forum - View Single Post - collection of available AVC custom quant matrices

redfordxx · 24th November 2005, 11:54

Well when there will be again increasing number of Qmatrices for AVC, I expect again confusion which one to choose.
Yeah, for low bitrate use low bitrate matrix for high bitrate high bitrate matrix.
But with bitrate comes compressibility and resolution, so it is not so plain.

How about measuring it with Quantizer? I mean to find some rules like
"the matrix performs best at average Q=20",
or
"If you reach 2nd pass with matrix abc_low_bitrate average Q=15, you should go for abc_mid_bitrate." (I am referring to the fact, that some of matrix producers made whole series for XviD)

24th November 2005, 11:54	#18 \| Link
redfordxx Registered User Join Date: Jan 2005 Location: Praha (not that one in Texas) Posts: 863	Well when there will be again increasing number of Qmatrices for AVC, I expect again confusion which one to choose. Yeah, for low bitrate use low bitrate matrix for high bitrate high bitrate matrix. But with bitrate comes compressibility and resolution, so it is not so plain. How about measuring it with Quantizer? I mean to find some rules like "the matrix performs best at average Q=20", or "If you reach 2nd pass with matrix abc_low_bitrate average Q=15, you should go for abc_mid_bitrate." (I am referring to the fact, that some of matrix producers made whole series for XviD) Last edited by redfordxx; 24th November 2005 at 11:58.