michael@0: /********************************************************************
michael@0:  *                                                                  *
michael@0:  * THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE.   *
michael@0:  *                                                                  *
michael@0:  * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
michael@0:  * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
michael@0:  * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
michael@0:  *                                                                  *
michael@0:  * THE OggVorbis 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2002    *
michael@0:  * BY THE Xiph.Org FOUNDATION http://www.xiph.org/                  *
michael@0:  *                                                                  *
michael@0:  ********************************************************************
michael@0: 
michael@0:  function: libvorbis codec headers
michael@0: 
michael@0:  ********************************************************************/
michael@0: 
michael@0: #ifndef _V_CODECI_H_
michael@0: #define _V_CODECI_H_
michael@0: 
michael@0: #include "codebook.h"
michael@0: 
michael@0: typedef void vorbis_look_mapping;
michael@0: typedef void vorbis_look_floor;
michael@0: typedef void vorbis_look_residue;
michael@0: typedef void vorbis_look_transform;
michael@0: 
michael@0: /* mode ************************************************************/
michael@0: typedef struct {
michael@0:   int blockflag;
michael@0:   int windowtype;
michael@0:   int transformtype;
michael@0:   int mapping;
michael@0: } vorbis_info_mode;
michael@0: 
michael@0: typedef void vorbis_info_floor;
michael@0: typedef void vorbis_info_residue;
michael@0: typedef void vorbis_info_mapping;
michael@0: 
michael@0: typedef struct private_state {
michael@0:   /* local lookup storage */
michael@0:   const void             *window[2];
michael@0: 
michael@0:   /* backend lookups are tied to the mode, not the backend or naked mapping */
michael@0:   int                     modebits;
michael@0:   vorbis_look_mapping   **mode;
michael@0: 
michael@0:   ogg_int64_t sample_count;
michael@0: 
michael@0: } private_state;
michael@0: 
michael@0: /* codec_setup_info contains all the setup information specific to the
michael@0:    specific compression/decompression mode in progress (eg,
michael@0:    psychoacoustic settings, channel setup, options, codebook
michael@0:    etc).  
michael@0: *********************************************************************/
michael@0: 
michael@0: typedef struct codec_setup_info {
michael@0: 
michael@0:   /* Vorbis supports only short and long blocks, but allows the
michael@0:      encoder to choose the sizes */
michael@0: 
michael@0:   long blocksizes[2];
michael@0: 
michael@0:   /* modes are the primary means of supporting on-the-fly different
michael@0:      blocksizes, different channel mappings (LR or M/A),
michael@0:      different residue backends, etc.  Each mode consists of a
michael@0:      blocksize flag and a mapping (along with the mapping setup */
michael@0: 
michael@0:   int        modes;
michael@0:   int        maps;
michael@0:   int        times;
michael@0:   int        floors;
michael@0:   int        residues;
michael@0:   int        books;
michael@0: 
michael@0:   vorbis_info_mode       *mode_param[64];
michael@0:   int                     map_type[64];
michael@0:   vorbis_info_mapping    *map_param[64];
michael@0:   int                     time_type[64];
michael@0:   int                     floor_type[64];
michael@0:   vorbis_info_floor      *floor_param[64];
michael@0:   int                     residue_type[64];
michael@0:   vorbis_info_residue    *residue_param[64];
michael@0:   static_codebook        *book_param[256];
michael@0:   codebook               *fullbooks;
michael@0: 
michael@0:   int    passlimit[32];     /* iteration limit per couple/quant pass */
michael@0:   int    coupling_passes;
michael@0: } codec_setup_info;
michael@0: 
michael@0: #endif