Changeset e7fc5d53 in ffmpeg
- Timestamp:
-
Jun 19, 2014, 4:03:51 AM
(10 years ago)
- Author:
- Michael Niedermayer <michaelni@gmx.at>
- Branches:
- master
- Children:
- fe782233
- Parents:
- 042a82ca
- git-author:
- Christophe Gisquet <christophe.gisquet@gmail.com> (06/11/14 20:15:12)
- git-committer:
- Michael Niedermayer <michaelni@gmx.at> (06/19/14 04:03:51)
- Message:
-
huffyuv: change statistics initialization
Normally, a Laplace distribution is more typical of the residuals
encoded, but for noisy input, it's both better and simpler to be
safe and use a 1/d2 distribution. Second hunk could use some
renormalization but it has effectively little impact.
Output size of ffvhuff on various 4:2:0 sequences:
context=0,1/d: 851974 27226 1137281
context=0,1/d²: 619081 25069 1051500
context=0,1/d³: 501983 30454 1290561
context=0,lapl: 500650 31754 1304082
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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(No files)
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