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/*
* madplay - MPEG audio decoder and player
* Copyright (C) 2000-2004 Robert Leslie
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: tag.h,v 1.2 2004/02/23 21:34:53 rob Exp $
*/
# ifndef TAG_H
# define TAG_H
# include <mad.h>
# include "rgain.h"
enum {
TAG_XING = 0x0001,
TAG_LAME = 0x0002,
TAG_VBR = 0x0100
};
enum {
TAG_XING_FRAMES = 0x00000001L,
TAG_XING_BYTES = 0x00000002L,
TAG_XING_TOC = 0x00000004L,
TAG_XING_SCALE = 0x00000008L
};
struct tag_xing {
long flags; /* valid fields (see above) */
unsigned long frames; /* total number of frames */
unsigned long bytes; /* total number of bytes */
unsigned char toc[100]; /* 100-point seek table */
long scale; /* VBR quality indicator (0 best - 100 worst) */
};
enum {
TAG_LAME_NSPSYTUNE = 0x01,
TAG_LAME_NSSAFEJOINT = 0x02,
TAG_LAME_NOGAP_NEXT = 0x04,
TAG_LAME_NOGAP_PREV = 0x08,
TAG_LAME_UNWISE = 0x10
};
enum tag_lame_vbr {
TAG_LAME_VBR_CONSTANT = 1,
TAG_LAME_VBR_ABR = 2,
TAG_LAME_VBR_METHOD1 = 3,
TAG_LAME_VBR_METHOD2 = 4,
TAG_LAME_VBR_METHOD3 = 5,
TAG_LAME_VBR_METHOD4 = 6,
TAG_LAME_VBR_CONSTANT2PASS = 8,
TAG_LAME_VBR_ABR2PASS = 9
};
enum tag_lame_source {
TAG_LAME_SOURCE_32LOWER = 0x00,
TAG_LAME_SOURCE_44_1 = 0x01,
TAG_LAME_SOURCE_48 = 0x02,
TAG_LAME_SOURCE_HIGHER48 = 0x03
};
enum tag_lame_mode {
TAG_LAME_MODE_MONO = 0x00,
TAG_LAME_MODE_STEREO = 0x01,
TAG_LAME_MODE_DUAL = 0x02,
TAG_LAME_MODE_JOINT = 0x03,
TAG_LAME_MODE_FORCE = 0x04,
TAG_LAME_MODE_AUTO = 0x05,
TAG_LAME_MODE_INTENSITY = 0x06,
TAG_LAME_MODE_UNDEFINED = 0x07
};
enum tag_lame_surround {
TAG_LAME_SURROUND_NONE = 0,
TAG_LAME_SURROUND_DPL = 1,
TAG_LAME_SURROUND_DPL2 = 2,
TAG_LAME_SURROUND_AMBISONIC = 3
};
enum tag_lame_preset {
TAG_LAME_PRESET_NONE = 0,
TAG_LAME_PRESET_V9 = 410,
TAG_LAME_PRESET_V8 = 420,
TAG_LAME_PRESET_V7 = 430,
TAG_LAME_PRESET_V6 = 440,
TAG_LAME_PRESET_V5 = 450,
TAG_LAME_PRESET_V4 = 460,
TAG_LAME_PRESET_V3 = 470,
TAG_LAME_PRESET_V2 = 480,
TAG_LAME_PRESET_V1 = 490,
TAG_LAME_PRESET_V0 = 500,
TAG_LAME_PRESET_R3MIX = 1000,
TAG_LAME_PRESET_STANDARD = 1001,
TAG_LAME_PRESET_EXTREME = 1002,
TAG_LAME_PRESET_INSANE = 1003,
TAG_LAME_PRESET_STANDARD_FAST = 1004,
TAG_LAME_PRESET_EXTREME_FAST = 1005,
TAG_LAME_PRESET_MEDIUM = 1006,
TAG_LAME_PRESET_MEDIUM_FAST = 1007
};
struct tag_lame {
unsigned char revision;
unsigned char flags;
enum tag_lame_vbr vbr_method;
unsigned short lowpass_filter;
mad_fixed_t peak;
struct rgain replay_gain[2];
unsigned char ath_type;
unsigned char bitrate;
unsigned short start_delay;
unsigned short end_padding;
enum tag_lame_source source_samplerate;
enum tag_lame_mode stereo_mode;
unsigned char noise_shaping;
signed char gain;
enum tag_lame_surround surround;
enum tag_lame_preset preset;
unsigned long music_length;
unsigned short music_crc;
};
struct tag {
int flags;
struct tag_xing xing;
struct tag_lame lame;
char encoder[21];
};
void tag_init(struct tag *);
# define tag_finish(tag) /* nothing */
int tag_parse(struct tag *, struct mad_stream const *);
# endif
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