bitreader.c File Reference

#include <retro_miscellaneous.h>
#include <stdlib.h>
#include <string.h>
#include "include/private/bitmath.h"
#include "include/private/bitreader.h"
#include "include/private/crc.h"
#include "include/private/macros.h"
#include "include/FLAC/assert.h"
#include "include/share/compat.h"
#include "include/share/endswap.h"

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Classes
struct	FLAC__BitReader

Macros
#define	FLAC__BYTES_PER_WORD   4 /* sizeof brword */
#define	FLAC__BITS_PER_WORD   32
#define	FLAC__WORD_ALL_ONES   ((FLAC__uint32)0xffffffff)
#define	SWAP_BE_WORD_TO_HOST(x)   ENDSWAP_32(x)
#define	COUNT_ZERO_MSBS(word)   FLAC__clz_uint32(word)
#define	COUNT_ZERO_MSBS2(word)   FLAC__clz2_uint32(word)

Typedefs
typedef FLAC__uint32	brword

Functions
static INLINE void	crc16_update_word_ (FLAC__BitReader *br, brword word)
static FLAC__bool	bitreader_read_from_client_ (FLAC__BitReader *br)
FLAC__BitReader *	FLAC__bitreader_new (void)
void	FLAC__bitreader_delete (FLAC__BitReader *br)
FLAC__bool	FLAC__bitreader_init (FLAC__BitReader *br, FLAC__BitReaderReadCallback rcb, void *cd)
void	FLAC__bitreader_free (FLAC__BitReader *br)
FLAC__bool	FLAC__bitreader_clear (FLAC__BitReader *br)
void	FLAC__bitreader_dump (const FLAC__BitReader *br, FILE *out)
void	FLAC__bitreader_reset_read_crc16 (FLAC__BitReader *br, FLAC__uint16 seed)
FLAC__uint16	FLAC__bitreader_get_read_crc16 (FLAC__BitReader *br)
FLAC__bool	FLAC__bitreader_is_consumed_byte_aligned (const FLAC__BitReader *br)
unsigned	FLAC__bitreader_bits_left_for_byte_alignment (const FLAC__BitReader *br)
unsigned	FLAC__bitreader_get_input_bits_unconsumed (const FLAC__BitReader *br)
FLAC__bool	FLAC__bitreader_read_raw_uint32 (FLAC__BitReader *br, FLAC__uint32 *val, unsigned bits)
FLAC__bool	FLAC__bitreader_read_raw_int32 (FLAC__BitReader *br, FLAC__int32 *val, unsigned bits)
FLAC__bool	FLAC__bitreader_read_raw_uint64 (FLAC__BitReader *br, FLAC__uint64 *val, unsigned bits)
FLAC__bool	FLAC__bitreader_read_uint32_little_endian (FLAC__BitReader *br, FLAC__uint32 *val)
FLAC__bool	FLAC__bitreader_skip_bits_no_crc (FLAC__BitReader *br, unsigned bits)
FLAC__bool	FLAC__bitreader_skip_byte_block_aligned_no_crc (FLAC__BitReader *br, unsigned nvals)
FLAC__bool	FLAC__bitreader_read_byte_block_aligned_no_crc (FLAC__BitReader *br, FLAC__byte *val, unsigned nvals)
FLAC__bool	FLAC__bitreader_read_unary_unsigned (FLAC__BitReader *br, unsigned *val)
FLAC__bool	FLAC__bitreader_read_rice_signed (FLAC__BitReader *br, int *val, unsigned parameter)
FLAC__bool	FLAC__bitreader_read_rice_signed_block (FLAC__BitReader *br, int vals[], unsigned nvals, unsigned parameter)
FLAC__bool	FLAC__bitreader_read_utf8_uint32 (FLAC__BitReader *br, FLAC__uint32 *val, FLAC__byte *raw, unsigned *rawlen)
FLAC__bool	FLAC__bitreader_read_utf8_uint64 (FLAC__BitReader *br, FLAC__uint64 *val, FLAC__byte *raw, unsigned *rawlen)

Variables
static const unsigned	FLAC__BITREADER_DEFAULT_CAPACITY = 65536u / FLAC__BITS_PER_WORD

Macro Definition Documentation

COUNT_ZERO_MSBS

#define COUNT_ZERO_MSBS

(

word

)

FLAC__clz_uint32(word)

COUNT_ZERO_MSBS2

#define COUNT_ZERO_MSBS2

(

word

)

FLAC__clz2_uint32(word)

FLAC__BITS_PER_WORD

#define FLAC__BITS_PER_WORD   32

FLAC__BYTES_PER_WORD

#define FLAC__BYTES_PER_WORD   4 /* sizeof brword */

FLAC__WORD_ALL_ONES

#define FLAC__WORD_ALL_ONES   ((FLAC__uint32)0xffffffff)

SWAP_BE_WORD_TO_HOST

#define SWAP_BE_WORD_TO_HOST

(

x

)

ENDSWAP_32(x)

Typedef Documentation

brword

typedef FLAC__uint32 brword

Function Documentation

bitreader_read_from_client_()

static FLAC__bool bitreader_read_from_client_ ( FLAC__BitReader *  br )

static

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crc16_update_word_()

static INLINE void crc16_update_word_ ( FLAC__BitReader *  br, brword  word  )

static

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FLAC__bitreader_bits_left_for_byte_alignment()

unsigned FLAC__bitreader_bits_left_for_byte_alignment

(

const FLAC__BitReader *

br

)

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FLAC__bitreader_clear()

FLAC__bool FLAC__bitreader_clear

(

FLAC__BitReader *

br

)

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FLAC__bitreader_delete()

void FLAC__bitreader_delete

(

FLAC__BitReader *

br

)

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FLAC__bitreader_dump()

void FLAC__bitreader_dump	(	const FLAC__BitReader *	br,
		FILE *	out
	)

FLAC__bitreader_free()

void FLAC__bitreader_free

(

FLAC__BitReader *

br

)

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FLAC__bitreader_get_input_bits_unconsumed()

unsigned FLAC__bitreader_get_input_bits_unconsumed

(

const FLAC__BitReader *

br

)

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FLAC__bitreader_get_read_crc16()

FLAC__uint16 FLAC__bitreader_get_read_crc16

(

FLAC__BitReader *

br

)

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FLAC__bitreader_init()

FLAC__bool FLAC__bitreader_init	(	FLAC__BitReader *	br,
		FLAC__BitReaderReadCallback	rcb,
		void *	cd
	)

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FLAC__bitreader_is_consumed_byte_aligned()

FLAC__bool FLAC__bitreader_is_consumed_byte_aligned

(

const FLAC__BitReader *

br

)

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FLAC__bitreader_new()

FLAC__BitReader* FLAC__bitreader_new

(

void

)

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FLAC__bitreader_read_byte_block_aligned_no_crc()

FLAC__bool FLAC__bitreader_read_byte_block_aligned_no_crc	(	FLAC__BitReader *	br,
		FLAC__byte *	val,
		unsigned	nvals
	)

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FLAC__bitreader_read_raw_int32()

FLAC__bool FLAC__bitreader_read_raw_int32	(	FLAC__BitReader *	br,
		FLAC__int32 *	val,
		unsigned	bits
	)

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FLAC__bitreader_read_raw_uint32()

FLAC__bool FLAC__bitreader_read_raw_uint32	(	FLAC__BitReader *	br,
		FLAC__uint32 *	val,
		unsigned	bits
	)

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FLAC__bitreader_read_raw_uint64()

FLAC__bool FLAC__bitreader_read_raw_uint64	(	FLAC__BitReader *	br,
		FLAC__uint64 *	val,
		unsigned	bits
	)

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FLAC__bitreader_read_rice_signed()

FLAC__bool FLAC__bitreader_read_rice_signed	(	FLAC__BitReader *	br,
		int *	val,
		unsigned	parameter
	)

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FLAC__bitreader_read_rice_signed_block()

FLAC__bool FLAC__bitreader_read_rice_signed_block	(	FLAC__BitReader *	br,
		int	vals[],
		unsigned	nvals,
		unsigned	parameter
	)

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FLAC__bitreader_read_uint32_little_endian()

FLAC__bool FLAC__bitreader_read_uint32_little_endian	(	FLAC__BitReader *	br,
		FLAC__uint32 *	val
	)

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FLAC__bitreader_read_unary_unsigned()

FLAC__bool FLAC__bitreader_read_unary_unsigned	(	FLAC__BitReader *	br,
		unsigned *	val
	)

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FLAC__bitreader_read_utf8_uint32()

FLAC__bool FLAC__bitreader_read_utf8_uint32	(	FLAC__BitReader *	br,
		FLAC__uint32 *	val,
		FLAC__byte *	raw,
		unsigned *	rawlen
	)

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FLAC__bitreader_read_utf8_uint64()

FLAC__bool FLAC__bitreader_read_utf8_uint64	(	FLAC__BitReader *	br,
		FLAC__uint64 *	val,
		FLAC__byte *	raw,
		unsigned *	rawlen
	)

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FLAC__bitreader_reset_read_crc16()

void FLAC__bitreader_reset_read_crc16	(	FLAC__BitReader *	br,
		FLAC__uint16	seed
	)

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FLAC__bitreader_skip_bits_no_crc()

FLAC__bool FLAC__bitreader_skip_bits_no_crc	(	FLAC__BitReader *	br,
		unsigned	bits
	)

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FLAC__bitreader_skip_byte_block_aligned_no_crc()

FLAC__bool FLAC__bitreader_skip_byte_block_aligned_no_crc	(	FLAC__BitReader *	br,
		unsigned	nvals
	)

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Variable Documentation

FLAC__BITREADER_DEFAULT_CAPACITY

const unsigned FLAC__BITREADER_DEFAULT_CAPACITY = 65536u / FLAC__BITS_PER_WORD

static