зеркало из https://github.com/mozilla/mozjpeg.git
Indicate our support for some of the jpeg-8d features, as well as arithmetic coding
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@888 632fc199-4ca6-4c93-a231-07263d6284db
This commit is contained in:
Родитель
966d8b77ef
Коммит
ac51438b66
|
@ -280,22 +280,28 @@ libjpeg v7 and v8 Features:
|
|||
|
||||
Fully supported:
|
||||
|
||||
-- cjpeg: Separate quality settings for luminance and chrominance
|
||||
Note that the libpjeg v7+ API was extended to accommodate this feature only
|
||||
for convenience purposes. It has always been possible to implement this
|
||||
feature with libjpeg v6b (see rdswitch.c for an example.)
|
||||
|
||||
-- libjpeg: IDCT scaling extensions in decompressor
|
||||
libjpeg-turbo supports IDCT scaling with scaling factors of 1/8, 1/4, 3/8,
|
||||
1/2, 5/8, 3/4, 7/8, 9/8, 5/4, 11/8, 3/2, 13/8, 7/4, 15/8, and 2/1 (only 1/4
|
||||
and 1/2 are SIMD-accelerated.)
|
||||
|
||||
-- libjpeg: arithmetic coding
|
||||
|
||||
-- cjpeg: Separate quality settings for luminance and chrominance
|
||||
Note that the libpjeg v7+ API was extended to accommodate this feature only
|
||||
for convenience purposes. It has always been possible to implement this
|
||||
feature with libjpeg v6b (see rdswitch.c for an example.)
|
||||
|
||||
-- cjpeg: 32-bit BMP support
|
||||
|
||||
-- cjpeg: -rgb option
|
||||
|
||||
-- jpegtran: lossless cropping
|
||||
|
||||
-- jpegtran: -perfect option
|
||||
|
||||
-- jpegtran: forcing width/height when performing lossless crop
|
||||
|
||||
-- rdjpgcom: -raw option
|
||||
|
||||
-- rdjpgcom: locale awareness
|
||||
|
@ -305,7 +311,6 @@ Fully supported when using libjpeg v7/v8 emulation:
|
|||
|
||||
-- libjpeg: In-memory source and destination managers
|
||||
|
||||
|
||||
Not supported:
|
||||
|
||||
-- libjpeg: DCT scaling in compressor
|
||||
|
|
Загрузка…
Ссылка в новой задаче