Fabrice Bellard
1df1df0b44
removed warnings
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Originally committed as revision 2246 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-09-09 22:50:44 +00:00
Michael Niedermayer
d9e6a6c629
golomb rice code cleanup / simplify (~0.5% compression gain and slightly faster)
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jpegls style golomb rice coder
Originally committed as revision 2040 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-07-13 11:06:45 +00:00
Michael Niedermayer
25bd2349ed
simpler
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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%
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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
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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)
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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
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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
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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)
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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)
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Originally committed as revision 1939 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-06-09 02:24:51 +00:00
