diff options
Diffstat (limited to 'tremor/backends.h')
| -rw-r--r-- | tremor/backends.h | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/tremor/backends.h b/tremor/backends.h deleted file mode 100644 index 269d9b812e..0000000000 --- a/tremor/backends.h +++ /dev/null @@ -1,130 +0,0 @@ -/******************************************************************** - * * - * 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: backend and mapping structures - - ********************************************************************/ - -/* this is exposed up here because we need it for static modes. - Lookups for each backend aren't exposed because there's no reason - to do so */ - -#ifndef _vorbis_backend_h_ -#define _vorbis_backend_h_ - -#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 */ - -/* Floor backend generic *****************************************/ -typedef struct{ - vorbis_info_floor *(*unpack)(vorbis_info *,oggpack_buffer *); - vorbis_look_floor *(*look) (vorbis_dsp_state *,vorbis_info_mode *, - vorbis_info_floor *); - void (*free_info) (vorbis_info_floor *); - void (*free_look) (vorbis_look_floor *); - void *(*inverse1) (struct vorbis_block *,vorbis_look_floor *); - int (*inverse2) (struct vorbis_block *,vorbis_look_floor *, - void *buffer,ogg_int32_t *); -} vorbis_func_floor; - -typedef struct{ - int order; - long rate; - long barkmap; - - int ampbits; - int ampdB; - - int numbooks; /* <= 16 */ - int books[16]; - -} 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 */ - -} vorbis_info_floor1; - -/* Residue backend generic *****************************************/ -typedef struct{ - vorbis_info_residue *(*unpack)(vorbis_info *,oggpack_buffer *); - vorbis_look_residue *(*look) (vorbis_dsp_state *,vorbis_info_mode *, - vorbis_info_residue *); - void (*free_info) (vorbis_info_residue *); - void (*free_look) (vorbis_look_residue *); - int (*inverse) (struct vorbis_block *,vorbis_look_residue *, - ogg_int32_t **,int *,int); -} vorbis_func_residue; - -typedef struct vorbis_info_residue0{ -/* block-partitioned VQ coded straight residue */ - long begin; - long end; - - /* first stage (lossless partitioning) */ - int grouping; /* group n vectors per partition */ - int partitions; /* possible codebooks for a partition */ - int groupbook; /* huffbook for partitioning */ - int secondstages[64]; /* expanded out to pointers in lookup */ - int booklist[256]; /* list of second stage books */ -} vorbis_info_residue0; - -/* Mapping backend generic *****************************************/ -typedef struct{ - vorbis_info_mapping *(*unpack)(vorbis_info *,oggpack_buffer *); - vorbis_look_mapping *(*look) (vorbis_dsp_state *,vorbis_info_mode *, - vorbis_info_mapping *); - void (*free_info) (vorbis_info_mapping *); - void (*free_look) (vorbis_look_mapping *); - int (*inverse) (struct vorbis_block *vb,vorbis_look_mapping *); -} vorbis_func_mapping; - -typedef struct vorbis_info_mapping0{ - int submaps; /* <= 16 */ - int chmuxlist[256]; /* up to 256 channels in a Vorbis stream */ - - int floorsubmap[16]; /* [mux] submap to floors */ - int residuesubmap[16]; /* [mux] submap to residue */ - - int psy[2]; /* by blocktype; impulse/padding for short, - transition/normal for long */ - - int coupling_steps; - int coupling_mag[256]; - int coupling_ang[256]; -} vorbis_info_mapping0; - -#endif - - - - - |