musepack.h File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "musepack/config_types.h"
#include "musepack/decoder.h"
#include "musepack/reader.h"
#include "musepack/streaminfo.h"

Go to the source code of this file.

Defines
#define	ERROR_CODE_OK   0
#define	ERROR_CODE_FILE   -1
#define	ERROR_CODE_SV7BETA   1
#define	ERROR_CODE_CBR   2
#define	ERROR_CODE_IS   3
#define	ERROR_CODE_BLOCKSIZE   4
#define	ERROR_CODE_INVALIDSV   5
Enumerations
enum	{ MPC_FRAME_LENGTH = (36 * 32), MPC_DECODER_BUFFER_LENGTH = 4 * MPC_FRAME_LENGTH }
Functions
void	mpc_streaminfo_init (mpc_streaminfo *si)
mpc_int32_t	mpc_streaminfo_read (mpc_streaminfo *si, mpc_reader *r)
double	mpc_streaminfo_get_length (mpc_streaminfo *si)
mpc_int64_t	mpc_streaminfo_get_length_samples (mpc_streaminfo *si)
void	mpc_decoder_setup (mpc_decoder *d, mpc_reader *r)
BOOL	mpc_decoder_initialize (mpc_decoder *d, mpc_streaminfo *si)
void	mpc_decoder_scale_output (mpc_decoder *d, double scale_factor)
mpc_uint32_t	mpc_decoder_decode (mpc_decoder *d, MPC_SAMPLE_FORMAT *buffer, mpc_uint32_t *vbr_update_acc, mpc_uint32_t *vbr_update_bits)
BOOL	mpc_decoder_seek_sample (mpc_decoder *d, mpc_int64_t destsample)
	Seeks to the specified sample in the source stream.
BOOL	mpc_decoder_seek_seconds (mpc_decoder *d, double seconds)
	Seeks to specified position in seconds in the source stream.

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Detailed Description

Top level include file for libmusepack.

Definition in file musepack.h.

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Enumeration Type Documentation

anonymous enum

Enumeration values: MPC_DECODER_BUFFER_LENGTH  samples per mpc frame Definition at line 56 of file musepack.h.

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Function Documentation

mpc_uint32_t mpc_decoder_decode (  mpc_decoder *  d, MPC_SAMPLE_FORMAT *  buffer, mpc_uint32_t *  vbr_update_acc, mpc_uint32_t *  vbr_update_bits )

Actually reads data from previously initialized stream. Call this iteratively to decode the mpc stream. Parameters: buffer  destination buffer for decoded samples vbr_update_acc  Todo: document me Parameters: vbr_update_bits  Todo: document me Returns: -1 if an error is encountered 0 if the stream has been completely decoded successfully and there are no more samples > 0 to indicate the number of bytes that were actually read from the stream. Definition at line 422 of file mpc_decoder.c.

BOOL mpc_decoder_initialize (  mpc_decoder *  d, mpc_streaminfo *  si )

Initializes mpc decoder with the supplied stream info parameters. Call this next after calling mpc_decoder_setup. Parameters: si  streaminfo structure indicating format of source stream Returns: TRUE if decoder was initalized successfully, FALSE otherwise Definition at line 1194 of file mpc_decoder.c.

void mpc_decoder_scale_output (  mpc_decoder *  d, double  scale_factor )

Sets decoder sample scaling factor. All decoded samples will be multiplied by this factor. Parameters: scale_factor  multiplicative scaling factor Definition at line 89 of file requant.c.

void mpc_decoder_setup (  mpc_decoder *  d, mpc_reader *  r )

Sets up decoder library. Call this first when preparing to decode an mpc stream. Parameters: r  reader that will supply raw data to the decoder Definition at line 1108 of file mpc_decoder.c.

double mpc_streaminfo_get_length (  mpc_streaminfo *  si  )

Gets length of stream si, in seconds. Returns: length of stream in seconds Definition at line 263 of file streaminfo.c. References mpc_streaminfo_get_length_samples().

mpc_int64_t mpc_streaminfo_get_length_samples (  mpc_streaminfo *  si  )

Returns length of stream si, in samples. Returns: length of stream in samples Definition at line 270 of file streaminfo.c. Referenced by mpc_streaminfo_get_length().

void mpc_streaminfo_init (  mpc_streaminfo *  si  )

Initializes a streaminfo structure. Parameters: si  streaminfo structure to initialize Definition at line 56 of file streaminfo.c.

mpc_int32_t mpc_streaminfo_read (  mpc_streaminfo *  si, mpc_reader *  r )

Reads streaminfo header from the mpc stream supplied by r. Parameters: si  streaminfo pointer to which info will be written r  stream reader to supply raw data Returns: error code Definition at line 202 of file streaminfo.c.

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