dany/libwebp
1
0
Fork 0
mirror of https://github.com/webmproject/libwebp.git synced 2024-11-20 12:28:26 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity
c16cd99aba
libwebp/src/enc
History
Vikas Arora c16cd99aba Speed up lossless encoder. 
Speedup lossless encoder by 20-25% by optimizing:
- GetBestColorTransformForTile: Use techniques like binary search and
  local minima search to reduce the search space.
- VP8LFastSLog2Slow & VP8LFastLog2Slow: Adding the correction factor for
  log(1 + x) and increase the threshold for calling the approximate
  version of log_2 (compared to costly call to log()).

Change-Id: Ia2444c914521ac298492aafa458e617028fc2f9d
2014-02-21 22:13:50 -08:00
..
alpha.c drop: ifdef __cplusplus checks from C files 2013-12-13 11:42:13 -08:00
analysis.c always use fast-analysis for all methods. 2014-01-24 18:17:04 +01:00
backward_references.c cosmetics: backward_references.c: reindent after a7d2ee3 2014-02-11 15:52:22 -08:00
backward_references.h Optimize cache estimate logic. 2014-02-11 10:59:01 -08:00
config.c drop: ifdef __cplusplus checks from C files 2013-12-13 11:42:13 -08:00
cost.c drop: ifdef __cplusplus checks from C files 2013-12-13 11:42:13 -08:00
cost.h simplify __cplusplus ifdef 2013-12-16 20:16:02 -08:00
filter.c drop: ifdef __cplusplus checks from C files 2013-12-13 11:42:13 -08:00
frame.c drop: ifdef __cplusplus checks from C files 2013-12-13 11:42:13 -08:00
histogram.c Pack code & extra_bits to Struct (VP8LPrefixCode). 2013-08-12 11:56:42 -07:00
histogram.h simplify __cplusplus ifdef 2013-12-16 20:16:02 -08:00
iterator.c drop: ifdef __cplusplus checks from C files 2013-12-13 11:42:13 -08:00
layer.c drop: ifdef __cplusplus checks from C files 2013-12-13 11:42:13 -08:00
Makefile.am move token buffer to its own file (token.c) 2012-12-03 13:50:14 +01:00
picture.c make WebPCleanupTransparentArea work with argb picture 2014-01-17 20:19:16 +01:00
quant.c 1-2% faster quantization in SSE2 2014-02-13 15:55:30 -08:00
syntax.c drop: ifdef __cplusplus checks from C files 2013-12-13 11:42:13 -08:00
token.c drop: ifdef __cplusplus checks from C files 2013-12-13 11:42:13 -08:00
tree.c drop: ifdef __cplusplus checks from C files 2013-12-13 11:42:13 -08:00
vp8enci.h 1-2% faster quantization in SSE2 2014-02-13 15:55:30 -08:00
vp8l.c Speed up lossless encoder. 2014-02-21 22:13:50 -08:00
vp8li.h simplify __cplusplus ifdef 2013-12-16 20:16:02 -08:00
webpenc.c drop: ifdef __cplusplus checks from C files 2013-12-13 11:42:13 -08:00