/********************************************************************
* *
* THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
- * USE, DISTRIBUTION AND REPRODUCTION OF THIS SOURCE IS GOVERNED BY *
- * THE GNU LESSER/LIBRARY PUBLIC LICENSE, WHICH IS INCLUDED WITH *
- * THIS SOURCE. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
+ * 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 SOURCE CODE IS (C) COPYRIGHT 1994-2000 *
- * by Monty <monty@xiph.org> and the XIPHOPHORUS Company *
- * http://www.xiph.org/ *
+ * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2009 *
+ * by the Xiph.Org Foundation http://www.xiph.org/ *
* *
********************************************************************
- function: libvorbis backend and mapping structures; needed for
+ function: libvorbis backend and mapping structures; needed for
static mode headers
- last mod: $Id: backends.h,v 1.3 2000/11/17 11:47:18 xiphmont Exp $
********************************************************************/
#include "codec_internal.h"
/* this would all be simpler/shorter with templates, but.... */
-/* Transform backend generic *************************************/
-
-/* only mdct right now. Flesh it out more if we ever transcend mdct
- in the transform domain */
-
-/* Time backend generic ******************************************/
-typedef struct{
- void (*pack) (vorbis_info_time *,oggpack_buffer *);
- vorbis_info_time *(*unpack)(vorbis_info *,oggpack_buffer *);
- vorbis_look_time *(*look) (vorbis_dsp_state *,vorbis_info_mode *,
- vorbis_info_time *);
- vorbis_info_time *(*copy_info)(vorbis_info_time *);
-
- void (*free_info) (vorbis_info_time *);
- void (*free_look) (vorbis_look_time *);
- int (*forward) (struct vorbis_block *,vorbis_look_time *,
- float *,float *);
- int (*inverse) (struct vorbis_block *,vorbis_look_time *,
- float *,float *);
-} vorbis_func_time;
-
-typedef struct{
- int dummy;
-} vorbis_info_time0;
-
/* Floor backend generic *****************************************/
typedef struct{
void (*pack) (vorbis_info_floor *,oggpack_buffer *);
vorbis_info_floor *(*unpack)(vorbis_info *,oggpack_buffer *);
- vorbis_look_floor *(*look) (vorbis_dsp_state *,vorbis_info_mode *,
- vorbis_info_floor *);
- vorbis_info_floor *(*copy_info)(vorbis_info_floor *);
+ vorbis_look_floor *(*look) (vorbis_dsp_state *,vorbis_info_floor *);
void (*free_info) (vorbis_info_floor *);
void (*free_look) (vorbis_look_floor *);
- int (*forward) (struct vorbis_block *,vorbis_look_floor *,
- float *,float *,vorbis_bitbuffer *);
- float(*forward2) (struct vorbis_block *,vorbis_look_floor *,
- long,float, vorbis_bitbuffer *);
- int (*inverse) (struct vorbis_block *,vorbis_look_floor *,
- float *);
+ void *(*inverse1) (struct vorbis_block *,vorbis_look_floor *);
+ int (*inverse2) (struct vorbis_block *,vorbis_look_floor *,
+ void *buffer,float *);
} vorbis_func_floor;
typedef struct{
int numbooks; /* <= 16 */
int books[16];
+
+ float lessthan; /* encode-only config setting hacks for libvorbis */
+ float greaterthan; /* encode-only config setting hacks for libvorbis */
+
} vorbis_info_floor0;
+
+#define VIF_POSIT 63
+#define VIF_CLASS 16
+#define VIF_PARTS 31
+typedef struct{
+ int partitions; /* 0 to 31 */
+ int partitionclass[VIF_PARTS]; /* 0 to 15 */
+
+ int class_dim[VIF_CLASS]; /* 1 to 8 */
+ int class_subs[VIF_CLASS]; /* 0,1,2,3 (bits: 1<<n poss) */
+ int class_book[VIF_CLASS]; /* subs ^ dim entries */
+ int class_subbook[VIF_CLASS][8]; /* [VIF_CLASS][subs] */
+
+
+ int mult; /* 1 2 3 or 4 */
+ int postlist[VIF_POSIT+2]; /* first two implicit */
+
+
+ /* encode side analysis parameters */
+ float maxover;
+ float maxunder;
+ float maxerr;
+
+ float twofitweight;
+ float twofitatten;
+
+ int n;
+
+} vorbis_info_floor1;
+
/* Residue backend generic *****************************************/
typedef struct{
void (*pack) (vorbis_info_residue *,oggpack_buffer *);
vorbis_info_residue *(*unpack)(vorbis_info *,oggpack_buffer *);
- vorbis_look_residue *(*look) (vorbis_dsp_state *,vorbis_info_mode *,
- vorbis_info_residue *);
- vorbis_info_residue *(*copy_info)(vorbis_info_residue *);
+ vorbis_look_residue *(*look) (vorbis_dsp_state *,
+ vorbis_info_residue *);
void (*free_info) (vorbis_info_residue *);
void (*free_look) (vorbis_look_residue *);
- int (*forward) (struct vorbis_block *,vorbis_look_residue *,
- float **,int,vorbis_bitbuffer *);
+ long **(*class) (struct vorbis_block *,vorbis_look_residue *,
+ int **,int *,int);
+ int (*forward) (oggpack_buffer *,struct vorbis_block *,
+ vorbis_look_residue *,
+ int **,int *,int,long **,int);
int (*inverse) (struct vorbis_block *,vorbis_look_residue *,
- float **,int);
+ float **,int *,int);
} vorbis_func_residue;
typedef struct vorbis_info_residue0{
/* first stage (lossless partitioning) */
int grouping; /* group n vectors per partition */
int partitions; /* possible codebooks for a partition */
+ int partvals; /* partitions ^ groupbook dim */
int groupbook; /* huffbook for partitioning */
int secondstages[64]; /* expanded out to pointers in lookup */
- int booklist[256]; /* list of second stage books */
-
- /* encode-only heuristic settings */
- float entmax[64]; /* book entropy threshholds*/
- float ampmax[64]; /* book amp threshholds*/
- int subgrp[64]; /* book heuristic subgroup size */
- int blimit[64]; /* subgroup position limits */
+ int booklist[512]; /* list of second stage books */
+ const int classmetric1[64];
+ const int classmetric2[64];
} vorbis_info_residue0;
/* Mapping backend generic *****************************************/
typedef struct{
void (*pack) (vorbis_info *,vorbis_info_mapping *,
- oggpack_buffer *);
+ oggpack_buffer *);
vorbis_info_mapping *(*unpack)(vorbis_info *,oggpack_buffer *);
- vorbis_look_mapping *(*look) (vorbis_dsp_state *,vorbis_info_mode *,
- vorbis_info_mapping *);
- vorbis_info_mapping *(*copy_info)(vorbis_info_mapping *);
void (*free_info) (vorbis_info_mapping *);
- void (*free_look) (vorbis_look_mapping *);
- int (*forward) (struct vorbis_block *vb,vorbis_look_mapping *);
- int (*inverse) (struct vorbis_block *vb,vorbis_look_mapping *);
+ int (*forward) (struct vorbis_block *vb);
+ int (*inverse) (struct vorbis_block *vb,vorbis_info_mapping *);
} vorbis_func_mapping;
typedef struct vorbis_info_mapping0{
int submaps; /* <= 16 */
int chmuxlist[256]; /* up to 256 channels in a Vorbis stream */
-
- int timesubmap[16]; /* [mux] */
+
int floorsubmap[16]; /* [mux] submap to floors */
int residuesubmap[16]; /* [mux] submap to residue */
- int psysubmap[16]; /* [mux]; encode only */
-} vorbis_info_mapping0;
-
-#endif
-
-
+ int coupling_steps;
+ int coupling_mag[256];
+ int coupling_ang[256];
+} vorbis_info_mapping0;
+#endif
projects / platform / upstream / libvorbis.git / blobdiff