47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
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#ifndef _FLAC_DECODER_H
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#define _FLAC_DECODER_H
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#include "bitstream.h"
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#define MAX_CHANNELS 2 /* Maximum supported channels */
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#define MAX_BLOCKSIZE 4608 /* Maxsize in samples of one uncompressed frame */
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#define MAX_FRAMESIZE 32768 /* Maxsize in bytes of one compressed frame */
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#define FLAC_OUTPUT_DEPTH 28 /* Provide samples left-shifted to 28-bits */
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enum decorrelation_type {
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INDEPENDENT,
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LEFT_SIDE,
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RIGHT_SIDE,
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MID_SIDE,
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};
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typedef struct FLACContext {
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GetBitContext gb;
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int min_blocksize, max_blocksize;
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int min_framesize, max_framesize;
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int samplerate, channels;
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int blocksize/*, last_blocksize*/;
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int bps, curr_bps;
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unsigned long samplenumber;
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unsigned long totalsamples;
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enum decorrelation_type decorrelation;
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int filesize;
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int length;
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int bitrate;
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int metadatalength;
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int bitstream_size;
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int bitstream_index;
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} FLACContext;
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int flac_decode_frame(FLACContext *s,
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int32_t* decoded0,
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int32_t* decoded1,
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uint8_t *buf, int buf_size,
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void (*yield)(void));
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#endif
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