dbf-halloween2015

annotate libs/vorbis/codec_internal.h @ 1:c3f5c32cb210

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barfed all the libraries in the source tree to make porting easier
author John Tsiombikas <nuclear@member.fsf.org>
date Sun, 01 Nov 2015 00:36:56 +0200
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nuclear@1 1 /********************************************************************
nuclear@1 2 * *
nuclear@1 3 * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
nuclear@1 4 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
nuclear@1 5 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
nuclear@1 6 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
nuclear@1 7 * *
nuclear@1 8 * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2009 *
nuclear@1 9 * by the Xiph.Org Foundation http://www.xiph.org/ *
nuclear@1 10 * *
nuclear@1 11 ********************************************************************
nuclear@1 12
nuclear@1 13 function: libvorbis codec headers
nuclear@1 14 last mod: $Id: codec_internal.h 16227 2009-07-08 06:58:46Z xiphmont $
nuclear@1 15
nuclear@1 16 ********************************************************************/
nuclear@1 17
nuclear@1 18 #ifndef _V_CODECI_H_
nuclear@1 19 #define _V_CODECI_H_
nuclear@1 20
nuclear@1 21 #include "envelope.h"
nuclear@1 22 #include "codebook.h"
nuclear@1 23
nuclear@1 24 #define BLOCKTYPE_IMPULSE 0
nuclear@1 25 #define BLOCKTYPE_PADDING 1
nuclear@1 26 #define BLOCKTYPE_TRANSITION 0
nuclear@1 27 #define BLOCKTYPE_LONG 1
nuclear@1 28
nuclear@1 29 #define PACKETBLOBS 15
nuclear@1 30
nuclear@1 31 typedef struct vorbis_block_internal{
nuclear@1 32 float **pcmdelay; /* this is a pointer into local storage */
nuclear@1 33 float ampmax;
nuclear@1 34 int blocktype;
nuclear@1 35
nuclear@1 36 oggpack_buffer *packetblob[PACKETBLOBS]; /* initialized, must be freed;
nuclear@1 37 blob [PACKETBLOBS/2] points to
nuclear@1 38 the oggpack_buffer in the
nuclear@1 39 main vorbis_block */
nuclear@1 40 } vorbis_block_internal;
nuclear@1 41
nuclear@1 42 typedef void vorbis_look_floor;
nuclear@1 43 typedef void vorbis_look_residue;
nuclear@1 44 typedef void vorbis_look_transform;
nuclear@1 45
nuclear@1 46 /* mode ************************************************************/
nuclear@1 47 typedef struct {
nuclear@1 48 int blockflag;
nuclear@1 49 int windowtype;
nuclear@1 50 int transformtype;
nuclear@1 51 int mapping;
nuclear@1 52 } vorbis_info_mode;
nuclear@1 53
nuclear@1 54 typedef void vorbis_info_floor;
nuclear@1 55 typedef void vorbis_info_residue;
nuclear@1 56 typedef void vorbis_info_mapping;
nuclear@1 57
nuclear@1 58 #include "psy.h"
nuclear@1 59 #include "bitrate.h"
nuclear@1 60
nuclear@1 61 typedef struct private_state {
nuclear@1 62 /* local lookup storage */
nuclear@1 63 envelope_lookup *ve; /* envelope lookup */
nuclear@1 64 int window[2];
nuclear@1 65 vorbis_look_transform **transform[2]; /* block, type */
nuclear@1 66 drft_lookup fft_look[2];
nuclear@1 67
nuclear@1 68 int modebits;
nuclear@1 69 vorbis_look_floor **flr;
nuclear@1 70 vorbis_look_residue **residue;
nuclear@1 71 vorbis_look_psy *psy;
nuclear@1 72 vorbis_look_psy_global *psy_g_look;
nuclear@1 73
nuclear@1 74 /* local storage, only used on the encoding side. This way the
nuclear@1 75 application does not need to worry about freeing some packets'
nuclear@1 76 memory and not others'; packet storage is always tracked.
nuclear@1 77 Cleared next call to a _dsp_ function */
nuclear@1 78 unsigned char *header;
nuclear@1 79 unsigned char *header1;
nuclear@1 80 unsigned char *header2;
nuclear@1 81
nuclear@1 82 bitrate_manager_state bms;
nuclear@1 83
nuclear@1 84 ogg_int64_t sample_count;
nuclear@1 85 } private_state;
nuclear@1 86
nuclear@1 87 /* codec_setup_info contains all the setup information specific to the
nuclear@1 88 specific compression/decompression mode in progress (eg,
nuclear@1 89 psychoacoustic settings, channel setup, options, codebook
nuclear@1 90 etc).
nuclear@1 91 *********************************************************************/
nuclear@1 92
nuclear@1 93 #include "highlevel.h"
nuclear@1 94 typedef struct codec_setup_info {
nuclear@1 95
nuclear@1 96 /* Vorbis supports only short and long blocks, but allows the
nuclear@1 97 encoder to choose the sizes */
nuclear@1 98
nuclear@1 99 long blocksizes[2];
nuclear@1 100
nuclear@1 101 /* modes are the primary means of supporting on-the-fly different
nuclear@1 102 blocksizes, different channel mappings (LR or M/A),
nuclear@1 103 different residue backends, etc. Each mode consists of a
nuclear@1 104 blocksize flag and a mapping (along with the mapping setup */
nuclear@1 105
nuclear@1 106 int modes;
nuclear@1 107 int maps;
nuclear@1 108 int floors;
nuclear@1 109 int residues;
nuclear@1 110 int books;
nuclear@1 111 int psys; /* encode only */
nuclear@1 112
nuclear@1 113 vorbis_info_mode *mode_param[64];
nuclear@1 114 int map_type[64];
nuclear@1 115 vorbis_info_mapping *map_param[64];
nuclear@1 116 int floor_type[64];
nuclear@1 117 vorbis_info_floor *floor_param[64];
nuclear@1 118 int residue_type[64];
nuclear@1 119 vorbis_info_residue *residue_param[64];
nuclear@1 120 static_codebook *book_param[256];
nuclear@1 121 codebook *fullbooks;
nuclear@1 122
nuclear@1 123 vorbis_info_psy *psy_param[4]; /* encode only */
nuclear@1 124 vorbis_info_psy_global psy_g_param;
nuclear@1 125
nuclear@1 126 bitrate_manager_info bi;
nuclear@1 127 highlevel_encode_setup hi; /* used only by vorbisenc.c. It's a
nuclear@1 128 highly redundant structure, but
nuclear@1 129 improves clarity of program flow. */
nuclear@1 130 int halfrate_flag; /* painless downsample for decode */
nuclear@1 131 } codec_setup_info;
nuclear@1 132
nuclear@1 133 extern vorbis_look_psy_global *_vp_global_look(vorbis_info *vi);
nuclear@1 134 extern void _vp_global_free(vorbis_look_psy_global *look);
nuclear@1 135
nuclear@1 136
nuclear@1 137
nuclear@1 138 typedef struct {
nuclear@1 139 int sorted_index[VIF_POSIT+2];
nuclear@1 140 int forward_index[VIF_POSIT+2];
nuclear@1 141 int reverse_index[VIF_POSIT+2];
nuclear@1 142
nuclear@1 143 int hineighbor[VIF_POSIT];
nuclear@1 144 int loneighbor[VIF_POSIT];
nuclear@1 145 int posts;
nuclear@1 146
nuclear@1 147 int n;
nuclear@1 148 int quant_q;
nuclear@1 149 vorbis_info_floor1 *vi;
nuclear@1 150
nuclear@1 151 long phrasebits;
nuclear@1 152 long postbits;
nuclear@1 153 long frames;
nuclear@1 154 } vorbis_look_floor1;
nuclear@1 155
nuclear@1 156
nuclear@1 157
nuclear@1 158 extern int *floor1_fit(vorbis_block *vb,vorbis_look_floor1 *look,
nuclear@1 159 const float *logmdct, /* in */
nuclear@1 160 const float *logmask);
nuclear@1 161 extern int *floor1_interpolate_fit(vorbis_block *vb,vorbis_look_floor1 *look,
nuclear@1 162 int *A,int *B,
nuclear@1 163 int del);
nuclear@1 164 extern int floor1_encode(oggpack_buffer *opb,vorbis_block *vb,
nuclear@1 165 vorbis_look_floor1 *look,
nuclear@1 166 int *post,int *ilogmask);
nuclear@1 167 #endif