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| author | cvs2svn <nobody@xiph.org> | 2004-03-20 20:06:36 +0000 |
|---|---|---|
| committer | cvs2svn <nobody@xiph.org> | 2004-03-20 20:06:36 +0000 |
| commit | 083f54322feb6f8526b98712fb4baee07589ffbb (patch) | |
| tree | a56e19e9ccb5ae1962437f2ae547810e25ca015b /codebook.h | |
| download | tremor-083f54322feb6f8526b98712fb4baee07589ffbb.tar.gz | |
This commit was manufactured by cvs2svn to create branch
'lowmem-no-byte'.
git-svn-id: https://svn.xiph.org/branches/lowmem-no-byte/Tremor@5975 0101bb08-14d6-0310-b084-bc0e0c8e3800
Diffstat (limited to 'codebook.h')
| -rw-r--r-- | codebook.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/codebook.h b/codebook.h new file mode 100644 index 0000000..7519597 --- /dev/null +++ b/codebook.h @@ -0,0 +1,65 @@ +/******************************************************************** + * * + * THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE. * + * * + * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * + * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * + * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * + * * + * THE OggVorbis 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2002 * + * BY THE Xiph.Org FOUNDATION http://www.xiph.org/ * + * * + ******************************************************************** + + function: basic shared codebook operations + + ********************************************************************/ + +#ifndef _V_CODEBOOK_H_ +#define _V_CODEBOOK_H_ + +#include "ogg.h" + +typedef struct codebook{ + long dim; /* codebook dimensions (elements per vector) */ + long entries; /* codebook entries */ + long used_entries; /* populated codebook entries */ + + int dec_maxlength; + void *dec_table; + int dec_nodeb; + int dec_leafw; + int dec_type; /* 0 = entry number + 1 = packed vector of values + 2 = packed vector of column offsets, maptype 1 + 3 = scalar offset into value array, maptype 2 */ + + ogg_int32_t q_min; + int q_minp; + ogg_int32_t q_del; + int q_delp; + int q_seq; + int q_bits; + int q_pack; + void *q_val; + +} codebook; + +extern void vorbis_book_clear(codebook *b); +extern int vorbis_book_unpack(oggpack_buffer *b,codebook *c); + +extern long vorbis_book_decode(codebook *book, oggpack_buffer *b); +extern long vorbis_book_decodevs_add(codebook *book, ogg_int32_t *a, + oggpack_buffer *b,int n,int point); +extern long vorbis_book_decodev_set(codebook *book, ogg_int32_t *a, + oggpack_buffer *b,int n,int point); +extern long vorbis_book_decodev_add(codebook *book, ogg_int32_t *a, + oggpack_buffer *b,int n,int point); +extern long vorbis_book_decodevv_add(codebook *book, ogg_int32_t **a, + long off,int ch, + oggpack_buffer *b,int n,int point); + +extern int _ilog(unsigned int v); + + +#endif |