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Commit Graph

58 Commits

Author SHA1 Message Date
Michael Niedermayer
25bd2349ed simpler
Originally committed as revision 2039 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-07-12 22:15:11 +00:00
Michael Niedermayer
27fc5352d0 merge U and V statistics, 33% reduction in memory requirement, compression rate better for some files worse for others, worst compression rate loss 0.05%
Originally committed as revision 2015 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-07-05 14:18:07 +00:00
Michael Niedermayer
d9ced4ca4b cleanup / cosmetics
Originally committed as revision 2001 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-07-02 16:50:20 +00:00
Michael Niedermayer
085565f71f 20% less memory needed for 8bit AC state (worst compression rate loss was 0.2%, all other files had <=0.1% loss)
Originally committed as revision 2000 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-07-02 10:45:04 +00:00
Michael Niedermayer
2a250222e6 CONFIG_ENCODERS cleanup
Originally committed as revision 1984 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-06-22 11:08:22 +00:00
Michael Niedermayer
11e659c203 golomb rice codes
use gradients instead of prediction errors as context model
store independant quantization tables for each point
merge contexts with opposit sign

Originally committed as revision 1957 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-06-13 21:31:28 +00:00
Michael Niedermayer
c2f1b2cb71 reducing memory consumption (reducing number of contexts and other stuff, no noticeable loss in compression rate)
Originally committed as revision 1942 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-06-09 23:55:16 +00:00
Michael Niedermayer
5e20f836b3 FFV1 codec (our very simple lossless intra only codec, compresses much better then huffyuv)
Originally committed as revision 1939 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-06-09 02:24:51 +00:00