125 lines
2.9 KiB
C
125 lines
2.9 KiB
C
/*
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riff.h
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riff wav file handling
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Copyright (C) 2003 Bill Currie
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Author: Bill Currie <bill@taniwha.org>
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Date: 2003/4/10
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifndef __QF_riff_h
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#define __QF_riff_h
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#include <stdint.h>
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#include <sys/types.h>
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#include "QF/quakeio.h"
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typedef struct riff_d_chunk_s {
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char name[4];
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uint32_t len;
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} riff_d_chunk_t;
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typedef struct riff_d_cue_point_s {
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uint32_t name;
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uint32_t position;
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char chunk[4];
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uint32_t chunk_start;
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uint32_t block_start;
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uint32_t sample_offset;
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} riff_d_cue_point_t;
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typedef struct riff_d_cue_s {
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uint32_t count;
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riff_d_cue_point_t cue_points[1];
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} riff_d_cue_t;
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typedef struct riff_d_format_s {
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uint16_t format_tag;
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uint16_t channels;
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uint32_t samples_per_sec;
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uint32_t bytes_per_sec;
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uint16_t align;
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uint16_t bits_per_sample; // only if format_tag == 1
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} riff_d_format_t;
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typedef struct riff_d_ltxt_s {
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uint32_t name;
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uint32_t len;
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char purpose[4];
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uint32_t country;
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uint32_t language;
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uint32_t dialect;
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uint32_t codepage;
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unsigned char data[0];
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} riff_d_ltxt_t;
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typedef struct riff_cue_s {
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riff_d_chunk_t ck;
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riff_d_cue_t *cue;
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} riff_cue_t;
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typedef struct riff_format_s {
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riff_d_chunk_t ck;
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riff_d_format_t format;
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char fdata[0];
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} riff_format_t;
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typedef struct riff_ltxt_s {
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riff_d_chunk_t ck;
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riff_d_ltxt_t ltxt;
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} riff_ltxt_t;
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typedef struct riff_label_s {
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riff_d_chunk_t ck;
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off_t ofs;
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char *label;
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} riff_label_t;
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typedef struct riff_data_s {
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riff_d_chunk_t ck;
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char *data;
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} riff_data_t;
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typedef struct riff_list_s {
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riff_d_chunk_t ck;
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char name[4];
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riff_d_chunk_t *chunks[0];
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} riff_list_t;
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typedef riff_list_t riff_t; // a riff file is one huge list chunk
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#define RIFF_SWITCH(name) switch ((((unsigned char) (name)[0]) << 24) \
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| (((unsigned char) (name)[1]) << 16) \
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| (((unsigned char) (name)[2]) << 8) \
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| ((unsigned char) (name)[3]))
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#define RIFF_CASE(a,b,c,d) (((unsigned char)(a) << 24) \
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| ((unsigned char)(b) << 16) \
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| ((unsigned char)(c) << 8) \
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| (unsigned char)(d))
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riff_t *riff_read (QFile *file);
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void riff_free (riff_t *riff);
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#endif//__QF_riff_h
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