Merge branch 'main' into seek-support

1 files changed, 35 insertions, 71 deletions

diff --git a/lib/tremor/codebook.h b/lib/tremor/codebook.h
index bb139426..a32f0f7a 100644
--- a/lib/tremor/codebook.h
+++ b/lib/tremor/codebook.h
@@ -1,12 +1,12 @@
 /********************************************************************
  *                                                                  *
- * THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE.   *
+ * THIS FILE IS PART OF THE TremorOggVorbis '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    *
+ * THE TremorOggVorbis 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2002    *
  * BY THE Xiph.Org FOUNDATION http://www.xiph.org/                  *
  *                                                                  *
  ********************************************************************
@@ -18,82 +18,46 @@
 #ifndef _V_CODEBOOK_H_
 #define _V_CODEBOOK_H_
 
-#include <ogg/ogg.h>
-
-/* This structure encapsulates huffman and VQ style encoding books; it
-   doesn't do anything specific to either.
-
-   valuelist/quantlist are nonNULL (and q_* significant) only if
-   there's entry->value mapping to be done.
-
-   If encode-side mapping must be done (and thus the entry needs to be
-   hunted), the auxiliary encode pointer will point to a decision
-   tree.  This is true of both VQ and huffman, but is mostly useful
-   with VQ.
-
-*/
-
-typedef struct static_codebook{
-  long   dim;            /* codebook dimensions (elements per vector) */
-  long   entries;        /* codebook entries */
-  long  *lengthlist;     /* codeword lengths in bits */
-
-  /* mapping ***************************************************************/
-  int    maptype;        /* 0=none
-			    1=implicitly populated values from map column 
-			    2=listed arbitrary values */
-
-  /* The below does a linear, single monotonic sequence mapping. */
-  long     q_min;       /* packed 32 bit float; quant value 0 maps to minval */
-  long     q_delta;     /* packed 32 bit float; val 1 - val 0 == delta */
-  int      q_quant;     /* bits: 0 < quant <= 16 */
-  int      q_sequencep; /* bitflag */
-
-  long     *quantlist;  /* map == 1: (int)(entries^(1/dim)) element column map
-			   map == 2: list of dim*entries quantized entry vals
-			*/
-} static_codebook;
+#include "tremor_ogg.h"
 
 typedef struct codebook{
-  long dim;           /* codebook dimensions (elements per vector) */
-  long entries;       /* codebook entries */
-  long used_entries;  /* populated codebook entries */
-
-  /* the below are ordered by bitreversed codeword and only used
-     entries are populated */
-  int           binarypoint;
-  ogg_int32_t  *valuelist;  /* list of dim*entries actual entry values */  
-  ogg_uint32_t *codelist;   /* list of bitstream codewords for each entry */
-
-  int          *dec_index;  
-  char         *dec_codelengths;
-  ogg_uint32_t *dec_firsttable;
-  int           dec_firsttablen;
-  int           dec_maxlength;
-
-  long     q_min;       /* packed 32 bit float; quant value 0 maps to minval */
-  long     q_delta;     /* packed 32 bit float; val 1 - val 0 == delta */
+  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  */
+
+  tremor_ogg_int32_t q_min;  
+  int         q_minp;  
+  tremor_ogg_int32_t q_del;
+  int         q_delp;
+  int         q_seq;
+  int         q_bits;
+  int         q_pack;
+  void       *q_val;   
 
 } codebook;
 
-extern void vorbis_staticbook_destroy(static_codebook *b);
-extern int vorbis_book_init_decode(codebook *dest,const static_codebook *source);
-
 extern void vorbis_book_clear(codebook *b);
-extern long _book_maptype1_quantvals(const static_codebook *b);
-
-extern static_codebook *vorbis_staticbook_unpack(oggpack_buffer *b);
-
-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,
+extern int  vorbis_book_unpack(tremor_oggpack_buffer *b,codebook *c);
+
+extern long vorbis_book_decode(codebook *book, tremor_oggpack_buffer *b);
+extern long vorbis_book_decodevs_add(codebook *book, tremor_ogg_int32_t *a, 
+				     tremor_oggpack_buffer *b,int n,int point);
+extern long vorbis_book_decodev_set(codebook *book, tremor_ogg_int32_t *a, 
+				    tremor_oggpack_buffer *b,int n,int point);
+extern long vorbis_book_decodev_add(codebook *book, tremor_ogg_int32_t *a, 
+				    tremor_oggpack_buffer *b,int n,int point);
+extern long vorbis_book_decodevv_add(codebook *book, tremor_ogg_int32_t **a,
 				     long off,int ch, 
-				    oggpack_buffer *b,int n,int point);
+				    tremor_oggpack_buffer *b,int n,int point);
 
 extern int _ilog(unsigned int v);