diff options
author | michael <michael@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2003-01-19 18:25:21 +0000 |
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committer | michael <michael@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2003-01-19 18:25:21 +0000 |
commit | 82f18ba0c43e25674aaf3b9ddad9ceff87db99d8 (patch) | |
tree | 11cd47657adb1ba5d5df8ee881e691d33429a6ab | |
parent | 20a831c7f747ea8b196b3786105debbe88f5dd44 (diff) |
update
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9031 b3059339-0415-0410-9bf9-f77b7e298cf2
-rw-r--r-- | DOCS/tech/libavc-options.txt | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/DOCS/tech/libavc-options.txt b/DOCS/tech/libavc-options.txt index 5d07705cb7..65bcda3345 100644 --- a/DOCS/tech/libavc-options.txt +++ b/DOCS/tech/libavc-options.txt @@ -282,18 +282,21 @@ qpel use quarter pel motion compensation precmp comparission function for motion estimation pre pass cmp comparission function for full pel motion estimation subcmp comparission function for sub pel motion estimation +mbcmp comparission function for macroblock decission 0 SAD (sum of absolute differences) (default) 1 SSE (sum of squared errors) 2 SATD (sum of absolute hadamard transformed differences) 3 DCT (sum of absolute dct transformed differences) - 4 PSNR (sum of the squared quantization errors) + 4 PSNR (sum of the squared quantization errors) (dont use, low quality) 5 BIT (number of bits needed for the block) 6 RD (rate distoration optimal, slow) 7 ZERO (0) - +256 (use chroma too, doesnt work with b frames currently) - Tip: SAD is fast, SATD is good - Tip2: when using SATD for full pel search u should use a larger diamond - something like dia=2 or dia=4 + +256 (use chroma too, doesnt work (correctly) with b frames currently) + Tip: SAD is fast, SATD is good, SSE is something in between + Tip2: when using SATD/DCT/BIT/RD for full pel search then a + larger diamond something like dia=2 or dia=4 might improve + quality, but only for some videos + Note: mbcmp is only used if hq mode is disabled predia (-99 - 6) diamond type & size for motion estimation pre pass dia (-99 - 6) diamond type & size for motion estimation |