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/*C
(c) 2005 bl0rg.net
**/
#ifndef VORBIS_H__
#define VORBIS_H__
#include "buf.h"
#include "file.h"
#include "ogg.h"
#define VORBIS_HDR_SIZE 7
#define VORBIS_SYNC_HDR_BYTE1 ('v')
#define VORBIS_SYNC_HDR_BYTE2 ('o')
#define VORBIS_SYNC_HDR_BYTE3 ('r')
#define VORBIS_SYNC_HDR_BYTE4 ('b')
#define VORBIS_SYNC_HDR_BYTE5 ('i')
#define VORBIS_SYNC_HDR_BYTE6 ('s')
#define VORBIS_ID_HDR_SIZE 30
#define VORBIS_MAX_HDR_PAGES 10
/* actually we don't care about vorbis data */
#if 0
typedef struct vorbis_comment_hdr_s {
buf_t raw;
} vorbis_comment_hdr_t;
/*
0: packet type (id header: 1, comment header: 3, setup header: 5,
even number: audio packet)
1, 2, 3, 4, 5, 6: 'vorbis'
*/
typedef struct vorbis_setup_hdr_s {
buf_t raw;
} vorbis_setup_hdr_t;
#endif
typedef struct vorbis_stream_s {
/* OGG pages containing the Vorbis headers, so we don't have to
create them afterwards for HTTP streaming */
int hdr_pages_cnt;
ogg_page_t hdr_pages[VORBIS_MAX_HDR_PAGES];
buf_t id_hdr;
buf_t comment_hdr;
buf_t setup_hdr;
/*M
Identification header data.
**/
unsigned long vorbis_version;
unsigned char audio_channels;
unsigned long audio_sample_rate;
unsigned long bitrate_maximum;
unsigned long bitrate_nominal;
unsigned long bitrate_minimum;
unsigned char blocksize_0;
unsigned char blocksize_1;
file_t file;
ogg_page_t page;
unsigned char segment;
} vorbis_stream_t;
void vorbis_stream_init(vorbis_stream_t *vorbis);
void vorbis_stream_destroy(vorbis_stream_t *vorbis);
int vorbis_check_packet(buf_t *buf, unsigned char type);
int vorbis_stream_read_hdrs(vorbis_stream_t *vorbis);
#endif /* VORBIS_H__ */
/*C
**/
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