1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
#ifndef _FLAC_DECODER_H
#define _FLAC_DECODER_H
#include "bitstream.h"
#define MAX_CHANNELS 2 /* Maximum supported channels */
#define MAX_BLOCKSIZE 4608 /* Maxsize in samples of one uncompressed frame */
#define MAX_FRAMESIZE 32768 /* Maxsize in bytes of one compressed frame */
#define FLAC_OUTPUT_DEPTH 29 /* Provide samples left-shifted to 28 bits+sign */
enum decorrelation_type {
INDEPENDENT,
LEFT_SIDE,
RIGHT_SIDE,
MID_SIDE,
};
typedef struct FLACContext {
GetBitContext gb;
int min_blocksize, max_blocksize;
int min_framesize, max_framesize;
int samplerate, channels;
int blocksize/*, last_blocksize*/;
int bps, curr_bps;
unsigned long samplenumber;
unsigned long totalsamples;
enum decorrelation_type decorrelation;
int filesize;
int length;
int bitrate;
int metadatalength;
int bitstream_size;
int bitstream_index;
int sample_skip;
int framesize;
} FLACContext;
int flac_decode_frame(FLACContext *s,
int32_t* decoded0,
int32_t* decoded1,
uint8_t *buf, int buf_size,
void (*yield)(void)) ICODE_ATTR_FLAC;
#endif
|
