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| author | lars.taeuber@web.de <lars.taeuber@web.de> | 2008-01-04 17:44:42 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2008-01-04 17:44:42 +0000 |
| commit | e5635270d30097dffe8f33ddf93a8ddd15d12802 (patch) | |
| tree | d7425d031347249ec6ccaa5a76030976b3d7fae8 /doc/snow.txt | |
| parent | 68e7d4427665fb196f5563ab4053b1ef585ae49c (diff) | |
| download | ffmpeg-e5635270d30097dffe8f33ddf93a8ddd15d12802.tar.gz | |
A few lines of text about the range coder, part of a patch by lars punkt taeuber ät web punkt de.
Originally committed as revision 11397 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'doc/snow.txt')
| -rw-r--r-- | doc/snow.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/snow.txt b/doc/snow.txt index eaf34079b5..694da6f075 100644 --- a/doc/snow.txt +++ b/doc/snow.txt @@ -309,6 +309,13 @@ Decoding process: Range Coder: ============ FIXME +The implemented range coder is an adapted version based upon "Range encoding: +an algorithm for removing redundancy from a digitised message." by G. N. N. +Martin. +The encoded symbols encoded by the ffmpeg range coder are bits (0|1). The +associated probabilities are not fix but change depending on the symbol mix +seen so far. + Neighboring Blocks: =================== |