rematrix.c File Reference

#include "swresample_internal.h"
#include "libavutil/avassert.h"
#include "libavutil/channel_layout.h"
#include "rematrix_template.c"

Go to the source code of this file.

Macros
#define	TEMPLATE_REMATRIX_FLT
#define	TEMPLATE_REMATRIX_DBL
#define	TEMPLATE_REMATRIX_S16
#define	TEMPLATE_CLIP
#define	TEMPLATE_REMATRIX_S32
#define	FRONT_LEFT   0
#define	FRONT_RIGHT   1
#define	FRONT_CENTER   2
#define	LOW_FREQUENCY   3
#define	BACK_LEFT   4
#define	BACK_RIGHT   5
#define	FRONT_LEFT_OF_CENTER   6
#define	FRONT_RIGHT_OF_CENTER   7
#define	BACK_CENTER   8
#define	SIDE_LEFT   9
#define	SIDE_RIGHT   10
#define	TOP_CENTER   11
#define	TOP_FRONT_LEFT   12
#define	TOP_FRONT_CENTER   13
#define	TOP_FRONT_RIGHT   14
#define	TOP_BACK_LEFT   15
#define	TOP_BACK_CENTER   16
#define	TOP_BACK_RIGHT   17
#define	NUM_NAMED_CHANNELS   18

Functions
int	swr_set_matrix (struct SwrContext *s, const double *matrix, int stride)
	Set a customized remix matrix. More...
static int	even (int64_t layout)
static int	clean_layout (AVChannelLayout *out, const AVChannelLayout *in, void *s)
static int	sane_layout (AVChannelLayout *ch_layout)
av_cold int	swr_build_matrix2 (const AVChannelLayout *in_layout, const AVChannelLayout *out_layout, double center_mix_level, double surround_mix_level, double lfe_mix_level, double maxval, double rematrix_volume, double *matrix_param, ptrdiff_t stride, enum AVMatrixEncoding matrix_encoding, void *log_context)
	Generate a channel mixing matrix. More...
static av_cold int	auto_matrix (SwrContext *s)
av_cold int	swri_rematrix_init (SwrContext *s)
av_cold void	swri_rematrix_free (SwrContext *s)
int	swri_rematrix (SwrContext *s, AudioData *out, AudioData *in, int len, int mustcopy)

Macro Definition Documentation

TEMPLATE_REMATRIX_FLT

#define TEMPLATE_REMATRIX_FLT

Definition at line 25 of file rematrix.c.

TEMPLATE_REMATRIX_DBL

#define TEMPLATE_REMATRIX_DBL

Definition at line 29 of file rematrix.c.

TEMPLATE_REMATRIX_S16

#define TEMPLATE_REMATRIX_S16

Definition at line 33 of file rematrix.c.

TEMPLATE_CLIP

#define TEMPLATE_CLIP

Definition at line 35 of file rematrix.c.

TEMPLATE_REMATRIX_S32

#define TEMPLATE_REMATRIX_S32

Definition at line 40 of file rematrix.c.

FRONT_LEFT

#define FRONT_LEFT   0

Definition at line 44 of file rematrix.c.

FRONT_RIGHT

#define FRONT_RIGHT   1

Definition at line 45 of file rematrix.c.

FRONT_CENTER

#define FRONT_CENTER   2

Definition at line 46 of file rematrix.c.

LOW_FREQUENCY

#define LOW_FREQUENCY   3

Definition at line 47 of file rematrix.c.

BACK_LEFT

#define BACK_LEFT   4

Definition at line 48 of file rematrix.c.

BACK_RIGHT

#define BACK_RIGHT   5

Definition at line 49 of file rematrix.c.

FRONT_LEFT_OF_CENTER

#define FRONT_LEFT_OF_CENTER   6

Definition at line 50 of file rematrix.c.

FRONT_RIGHT_OF_CENTER

#define FRONT_RIGHT_OF_CENTER   7

Definition at line 51 of file rematrix.c.

BACK_CENTER

#define BACK_CENTER   8

Definition at line 52 of file rematrix.c.

SIDE_LEFT

#define SIDE_LEFT   9

Definition at line 53 of file rematrix.c.

SIDE_RIGHT

#define SIDE_RIGHT   10

Definition at line 54 of file rematrix.c.

TOP_CENTER

#define TOP_CENTER   11

Definition at line 55 of file rematrix.c.

TOP_FRONT_LEFT

#define TOP_FRONT_LEFT   12

Definition at line 56 of file rematrix.c.

TOP_FRONT_CENTER

#define TOP_FRONT_CENTER   13

Definition at line 57 of file rematrix.c.

TOP_FRONT_RIGHT

#define TOP_FRONT_RIGHT   14

Definition at line 58 of file rematrix.c.

TOP_BACK_LEFT

#define TOP_BACK_LEFT   15

Definition at line 59 of file rematrix.c.

TOP_BACK_CENTER

#define TOP_BACK_CENTER   16

Definition at line 60 of file rematrix.c.

TOP_BACK_RIGHT

#define TOP_BACK_RIGHT   17

Definition at line 61 of file rematrix.c.

NUM_NAMED_CHANNELS

#define NUM_NAMED_CHANNELS   18

Definition at line 62 of file rematrix.c.

Function Documentation

even()

static int even ( int64_t  layout )

static

Definition at line 84 of file rematrix.c.

Referenced by sane_layout().

clean_layout()

static int clean_layout ( AVChannelLayout *  out, const AVChannelLayout *  in, void *  s  )

static

Definition at line 90 of file rematrix.c.

Referenced by swr_build_matrix2().

sane_layout()

static int sane_layout ( AVChannelLayout *  ch_layout )

static

Definition at line 105 of file rematrix.c.

Referenced by swr_build_matrix2().

auto_matrix()

static av_cold int auto_matrix ( SwrContext *  s )

static

Definition at line 420 of file rematrix.c.

Referenced by swri_rematrix_init().

swri_rematrix_init()

av_cold int swri_rematrix_init

(

SwrContext *

s

)

Definition at line 449 of file rematrix.c.

Referenced by swr_init().

swri_rematrix_free()

av_cold void swri_rematrix_free

(

SwrContext *

s

)

Definition at line 555 of file rematrix.c.

Referenced by clear_context().

swri_rematrix()

int swri_rematrix	(	SwrContext *	s,
		AudioData *	out,
		AudioData *	in,
		int	len,
		int	mustcopy
	)

Definition at line 562 of file rematrix.c.

Referenced by swr_convert_internal().