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

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	LOW_FREQUENCY_2 35

#define	TOP_SIDE_LEFT 36

#define	TOP_SIDE_RIGHT 37

#define	BOTTOM_FRONT_CENTER 38

#define	BOTTOM_FRONT_LEFT 39

#define	BOTTOM_FRONT_RIGHT 40

#define	NUM_NAMED_CHANNELS 41

Functions
int	swr_set_matrix (struct SwrContext s, const double matrix, int stride)
	Set a customized remix matrix.

static int	even (int64_t layout)

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

static void	clean_downmix (AVChannelLayout ch_layout, const AVChannelLayout other)
	Stereo downmix channels are mixed like stereo, unless the other layout has such channels as well.

static int	sane_layout (const AVChannelLayout *ch_layout, int mixed)

static void	build_matrix (const AVChannelLayout in_ch_layout, const AVChannelLayout out_ch_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)

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.

static av_cold int	auto_matrix (SwrContext *s)

av_cold int	swri_rematrix_build (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 26 of file rematrix.c.

◆ TEMPLATE_REMATRIX_DBL

#define TEMPLATE_REMATRIX_DBL

Definition at line 30 of file rematrix.c.

◆ TEMPLATE_REMATRIX_S16

#define TEMPLATE_REMATRIX_S16

Definition at line 34 of file rematrix.c.

◆ TEMPLATE_CLIP

#define TEMPLATE_CLIP

Definition at line 36 of file rematrix.c.

◆ TEMPLATE_REMATRIX_S32

#define TEMPLATE_REMATRIX_S32

Definition at line 41 of file rematrix.c.

◆ FRONT_LEFT

#define FRONT_LEFT 0

Definition at line 45 of file rematrix.c.

Referenced by build_matrix().

◆ FRONT_RIGHT

#define FRONT_RIGHT 1

Definition at line 46 of file rematrix.c.

Referenced by build_matrix().

◆ FRONT_CENTER

#define FRONT_CENTER 2

Definition at line 47 of file rematrix.c.

Referenced by build_matrix().

◆ LOW_FREQUENCY

#define LOW_FREQUENCY 3

Definition at line 48 of file rematrix.c.

Referenced by build_matrix().

◆ BACK_LEFT

#define BACK_LEFT 4

Definition at line 49 of file rematrix.c.

Referenced by build_matrix().

◆ BACK_RIGHT

#define BACK_RIGHT 5

Definition at line 50 of file rematrix.c.

Referenced by build_matrix().

◆ FRONT_LEFT_OF_CENTER

#define FRONT_LEFT_OF_CENTER 6

Definition at line 51 of file rematrix.c.

Referenced by build_matrix().

◆ FRONT_RIGHT_OF_CENTER

#define FRONT_RIGHT_OF_CENTER 7

Definition at line 52 of file rematrix.c.

Referenced by build_matrix().

◆ BACK_CENTER

#define BACK_CENTER 8

Definition at line 53 of file rematrix.c.

Referenced by build_matrix().

◆ SIDE_LEFT

#define SIDE_LEFT 9

Definition at line 54 of file rematrix.c.

Referenced by build_matrix().

◆ SIDE_RIGHT

#define SIDE_RIGHT 10

Definition at line 55 of file rematrix.c.

Referenced by build_matrix().

◆ TOP_CENTER

#define TOP_CENTER 11

Definition at line 56 of file rematrix.c.

◆ TOP_FRONT_LEFT

#define TOP_FRONT_LEFT 12

Definition at line 57 of file rematrix.c.

Referenced by build_matrix().

◆ TOP_FRONT_CENTER

#define TOP_FRONT_CENTER 13

Definition at line 58 of file rematrix.c.

Referenced by build_matrix().

◆ TOP_FRONT_RIGHT

#define TOP_FRONT_RIGHT 14

Definition at line 59 of file rematrix.c.

Referenced by build_matrix().

◆ TOP_BACK_LEFT

#define TOP_BACK_LEFT 15

Definition at line 60 of file rematrix.c.

Referenced by build_matrix().

◆ TOP_BACK_CENTER

#define TOP_BACK_CENTER 16

Definition at line 61 of file rematrix.c.

Referenced by build_matrix().

◆ TOP_BACK_RIGHT

#define TOP_BACK_RIGHT 17

Definition at line 62 of file rematrix.c.

Referenced by build_matrix().

◆ LOW_FREQUENCY_2

#define LOW_FREQUENCY_2 35

Definition at line 63 of file rematrix.c.

Referenced by build_matrix().

◆ TOP_SIDE_LEFT

#define TOP_SIDE_LEFT 36

Definition at line 64 of file rematrix.c.

Referenced by build_matrix().

◆ TOP_SIDE_RIGHT

#define TOP_SIDE_RIGHT 37

Definition at line 65 of file rematrix.c.

Referenced by build_matrix().

◆ BOTTOM_FRONT_CENTER

#define BOTTOM_FRONT_CENTER 38

Definition at line 66 of file rematrix.c.

Referenced by build_matrix().

◆ BOTTOM_FRONT_LEFT

#define BOTTOM_FRONT_LEFT 39

Definition at line 67 of file rematrix.c.

Referenced by build_matrix().

◆ BOTTOM_FRONT_RIGHT

#define BOTTOM_FRONT_RIGHT 40

Definition at line 68 of file rematrix.c.

Referenced by build_matrix().

◆ NUM_NAMED_CHANNELS

#define NUM_NAMED_CHANNELS 41

Definition at line 69 of file rematrix.c.

Referenced by build_matrix().

Function Documentation

◆ even()

static int even ( int64_t layout )

static

Definition at line 93 of file rematrix.c.

Referenced by check_sbc_analyze(), interlaced_vertical_filter(), inverse_temporal_filter(), and sane_layout().

◆ clean_layout()

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

static

Definition at line 99 of file rematrix.c.

Referenced by swr_build_matrix2().

◆ clean_downmix()

static void clean_downmix	(	AVChannelLayout *	ch_layout,
		const AVChannelLayout *	other )

static

Stereo downmix channels are mixed like stereo, unless the other layout has such channels as well.

The channels keep their places.

Definition at line 139 of file rematrix.c.

Referenced by swr_build_matrix2().

◆ sane_layout()

static int sane_layout	(	const AVChannelLayout *	ch_layout,
		int	mixed )

static

Definition at line 157 of file rematrix.c.

Referenced by swr_build_matrix2().

◆ build_matrix()

static void build_matrix	(	const AVChannelLayout *	in_ch_layout,
		const AVChannelLayout *	out_ch_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 )

static

Definition at line 196 of file rematrix.c.

Referenced by swr_build_matrix2().

◆ auto_matrix()

static av_cold int auto_matrix ( SwrContext * s )

static

Definition at line 693 of file rematrix.c.

Referenced by swri_rematrix_build(), and swri_rematrix_init().

◆ swri_rematrix_build()

av_cold int swri_rematrix_build ( SwrContext * s )

Definition at line 713 of file rematrix.c.

Referenced by swr_init().

◆ swri_rematrix_init()

av_cold int swri_rematrix_init ( SwrContext * s )

Definition at line 753 of file rematrix.c.

Referenced by swr_init().

◆ swri_rematrix_free()

av_cold void swri_rematrix_free ( SwrContext * s )

Definition at line 862 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 867 of file rematrix.c.

Referenced by swr_convert_internal().

Macros

Functions

Macro Definition Documentation

◆ TEMPLATE_REMATRIX_FLT

◆ TEMPLATE_REMATRIX_DBL

◆ TEMPLATE_REMATRIX_S16

◆ TEMPLATE_CLIP

◆ TEMPLATE_REMATRIX_S32

◆ FRONT_LEFT

◆ FRONT_RIGHT

◆ FRONT_CENTER

◆ LOW_FREQUENCY

◆ BACK_LEFT

◆ BACK_RIGHT

◆ FRONT_LEFT_OF_CENTER

◆ FRONT_RIGHT_OF_CENTER

◆ BACK_CENTER

◆ SIDE_LEFT

◆ SIDE_RIGHT

◆ TOP_CENTER

◆ TOP_FRONT_LEFT

◆ TOP_FRONT_CENTER

◆ TOP_FRONT_RIGHT

◆ TOP_BACK_LEFT

◆ TOP_BACK_CENTER

◆ TOP_BACK_RIGHT

◆ LOW_FREQUENCY_2

◆ TOP_SIDE_LEFT

◆ TOP_SIDE_RIGHT

◆ BOTTOM_FRONT_CENTER

◆ BOTTOM_FRONT_LEFT

◆ BOTTOM_FRONT_RIGHT

◆ NUM_NAMED_CHANNELS

Function Documentation

◆ even()

◆ clean_layout()

◆ clean_downmix()

◆ sane_layout()

◆ build_matrix()

◆ auto_matrix()

◆ swri_rematrix_build()

◆ swri_rematrix_init()

◆ swri_rematrix_free()

◆ swri_rematrix()