util.c File Reference

#include <config.h>
#include "lame.h"
#include "machine.h"
#include "encoder.h"
#include "util.h"
#include "lame_global_flags.h"

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Defines
#define	PRECOMPUTE
#define	ABS(A)   (((A)>0) ? (A) : -(A))
Functions
void	free_id3tag (lame_internal_flags *const gfc)
void	freegfc (lame_internal_flags *const gfc)
void	malloc_aligned (aligned_pointer_t *ptr, unsigned int size, unsigned int bytes)
void	free_aligned (aligned_pointer_t *ptr)
FLOAT	ATHformula_GB (FLOAT f, FLOAT value)
FLOAT	ATHformula (FLOAT f, lame_global_flags const *gfp)
FLOAT	freq2bark (FLOAT freq)
FLOAT	freq2cbw (FLOAT freq)
int	FindNearestBitrate (int bRate, int version, int samplerate)
int	nearestBitrateFullIndex (const int bitrate)
int	map2MP3Frequency (int freq)
int	BitrateIndex (int bRate, int version, int samplerate)
int	SmpFrqIndex (int sample_freq, int *const version)
static FLOAT	blackman (FLOAT x, FLOAT fcn, int l)
int	gcd (int i, int j)
void	fill_buffer (lame_global_flags const *gfp, sample_t *mfbuf[2], sample_t const *in_buffer[2], int nsamples, int *n_in, int *n_out)
int	fill_buffer_resample (lame_global_flags const *gfp, sample_t *outbuf, int desired_len, sample_t const *inbuf, int len, int *num_used, int ch)
void	lame_debugf (const lame_internal_flags *gfc, const char *format,...)
void	lame_msgf (const lame_internal_flags *gfc, const char *format,...)
void	lame_errorf (const lame_internal_flags *gfc, const char *format,...)
int	has_MMX (void)
int	has_3DNow (void)
int	has_SSE (void)
int	has_SSE2 (void)
void	disable_FPE (void)
void	init_log_table (void)

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Define Documentation

#define ABS

(

A

)

(((A)>0) ? (A) : -(A))

Definition at line 271 of file util.c.

Referenced by FindNearestBitrate().

#define PRECOMPUTE

Definition at line 35 of file util.c.

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Function Documentation

FLOAT ATHformula	(	FLOAT	f,
		lame_global_flags const *	gfp
	)

Definition at line 226 of file util.c.

References lame_global_struct::ATHcurve, ATHformula_GB(), lame_global_struct::ATHtype, and gfp.

Referenced by ATHmdct().

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FLOAT ATHformula_GB	(	FLOAT	f,
		FLOAT	value
	)

Definition at line 183 of file util.c.

References Max.

Referenced by ATHformula().

int BitrateIndex	(	int	bRate,
		int	version,
		int	samplerate
	)

Definition at line 392 of file util.c.

References bitrate_table, and i.

Referenced by lame_init_params(), and PutVbrTag().

static FLOAT blackman	(	FLOAT	x,
		FLOAT	fcn,
		int	l
	)			[inline, static]

Definition at line 466 of file util.c.

References PI.

Referenced by fill_buffer_resample().

void disable_FPE

(

void

)

Definition at line 793 of file util.c.

Referenced by lame_init_old().

void fill_buffer	(	lame_global_flags const *	gfp,
		sample_t *	mfbuf[2],
		sample_t const *	in_buffer[2],
		int	nsamples,
		int *	n_in,
		int *	n_out
	)

Definition at line 508 of file util.c.

References lame_internal_flags::channels_out, fill_buffer_resample(), lame_global_struct::framesize, gfc, gfp, i, lame_global_struct::internal_flags, lame_internal_flags::mf_size, Min, and lame_internal_flags::resample_ratio.

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int fill_buffer_resample	(	lame_global_flags const *	gfp,
		sample_t *	outbuf,
		int	desired_len,
		sample_t const *	inbuf,
		int	len,
		int *	num_used,
		int	ch
	)

Definition at line 537 of file util.c.

References lame_internal_flags::blackfilt, blackman(), BPC, lame_internal_flags::fill_buffer_resample_init, gcd(), gfc, gfp, i, lame_global_struct::in_samplerate, lame_internal_flags::inbuf_old, lame_global_struct::internal_flags, lame_internal_flags::itime, Min, lame_global_struct::out_samplerate, lame_global_struct::quality, and lame_internal_flags::resample_ratio.

Referenced by fill_buffer().

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int FindNearestBitrate	(	int	bRate,
		int	version,
		int	samplerate
	)

Definition at line 274 of file util.c.

References ABS, bitrate_table, and i.

Referenced by lame_init_params().

void free_aligned

(

aligned_pointer_t *

ptr

)

Definition at line 168 of file util.c.

References aligned_pointer_t::aligned, and aligned_pointer_t::pointer.

void free_id3tag

(

lame_internal_flags *const

gfc

)

Definition at line 49 of file util.c.

References id3tag_spec::album, id3tag_spec::albumart, id3tag_spec::albumart_mimetype, id3tag_spec::albumart_size, id3tag_spec::artist, id3tag_spec::comment, id3tag_spec::genre_id3v2, gfc, i, MIMETYPE_NONE, id3tag_spec::num_values, lame_internal_flags::tag_spec, id3tag_spec::title, id3tag_spec::track_id3v2, and id3tag_spec::values.

Referenced by id3tag_init().

void freegfc

(

lame_internal_flags *const

gfc

)

Definition at line 95 of file util.c.

References lame_internal_flags::blackfilt, BPC, gfc, and i.

Referenced by lame_close(), and lame_init_params().

FLOAT freq2bark

(

FLOAT

freq

)

Definition at line 248 of file util.c.

Referenced by init_numline().

FLOAT freq2cbw

(

FLOAT

freq

)

Definition at line 259 of file util.c.

int gcd	(	int	i,
		int	j
	)

Definition at line 495 of file util.c.

Referenced by fill_buffer_resample().

int has_3DNow

(

void

)

Definition at line 752 of file util.c.

Referenced by lame_init_params().

int has_MMX

(

void

)

Definition at line 741 of file util.c.

Referenced by lame_init_params().

int has_SSE

(

void

)

Definition at line 763 of file util.c.

Referenced by lame_init_params().

int has_SSE2

(

void

)

Definition at line 778 of file util.c.

Referenced by lame_init_params().

void init_log_table

(

void

)

Definition at line 970 of file util.c.

Referenced by lame_init().

void lame_debugf	(	const lame_internal_flags *	gfc,
		const char *	format,
			...
	)

Definition at line 673 of file util.c.

References lame_internal_flags::debugf, gfc, and lame_internal_flags::report.

void lame_errorf	(	const lame_internal_flags *	gfc,
		const char *	format,
			...
	)

Definition at line 711 of file util.c.

References lame_internal_flags::errorf, gfc, and lame_internal_flags::report.

void lame_msgf	(	const lame_internal_flags *	gfc,
		const char *	format,
			...
	)

Definition at line 692 of file util.c.

References gfc, lame_internal_flags::msgf, and lame_internal_flags::report.

void malloc_aligned	(	aligned_pointer_t *	ptr,
		unsigned int	size,
		unsigned int	bytes
	)

Definition at line 152 of file util.c.

References aligned_pointer_t::aligned, and aligned_pointer_t::pointer.

int map2MP3Frequency

(

int

freq

)

Definition at line 369 of file util.c.

Referenced by lame_init_params().

int nearestBitrateFullIndex

(

const int

bitrate

)

Definition at line 316 of file util.c.

References bitrate_table, and Max.

Referenced by apply_abr_preset(), and optimum_bandwidth().

int SmpFrqIndex	(	int	sample_freq,
		int *const	version
	)

Definition at line 412 of file util.c.

Referenced by lame_init_params().

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