swresample.c File Reference

#include "libavutil/avassert.h"
#include "libavutil/channel_layout.h"
#include "libavutil/common.h"
#include "libavutil/opt.h"
#include "libswresample/swresample.h"
#include <time.h>

Go to the source code of this file.

Macros
#define	SAMPLES   1000
#define	SWR_CH_MAX   32
#define	ASSERT_LEVEL   2
#define	PUT_SAMPLE   set(data, ch, k, channels, sample_fmt, v);
#define	uint_rand(x)   ((x) = (x) * 1664525 + 1013904223)
#define	dbl_rand(x)   (uint_rand(x)*2.0 / (double)UINT_MAX - 1)

Functions
static double	get (uint8_t *a[], int ch, int index, int ch_count, enum AVSampleFormat f)
static void	set (uint8_t *a[], int ch, int index, int ch_count, enum AVSampleFormat f, double v)
static void	shift (uint8_t *a[], int index, int ch_count, enum AVSampleFormat f)
static void	setup_array (uint8_t *out[SWR_CH_MAX], uint8_t *in, enum AVSampleFormat format, int samples)
static int	cmp (const void *a, const void *b)
static void	audiogen (void *data, enum AVSampleFormat sample_fmt, int channels, int sample_rate, int nb_samples)
int	main (int argc, char **argv)

Variables
static enum AVSampleFormat	formats []
static const int	rates []
static const uint64_t	layouts []

Macro Definition Documentation

SAMPLES

#define SAMPLES   1000

Definition at line 33 of file swresample.c.

Referenced by main().

SWR_CH_MAX

#define SWR_CH_MAX   32

Definition at line 35 of file swresample.c.

Referenced by audiogen(), main(), setup_array(), swr_convert(), swr_drop_output(), swr_init(), and swr_inject_silence().

ASSERT_LEVEL

#define ASSERT_LEVEL   2

Definition at line 37 of file swresample.c.

PUT_SAMPLE

#define PUT_SAMPLE   set(data, ch, k, channels, sample_fmt, v);

Referenced by audiogen().

uint_rand

#define uint_rand

(

x

)

((x) = (x) * 1664525 + 1013904223)

Referenced by audiogen(), and main().

dbl_rand

#define dbl_rand

(

x

)

(uint_rand(x)*2.0 / (double)UINT_MAX - 1)

Referenced by audiogen().

Function Documentation

get()

static double get ( uint8_t *  a[], int  ch, int  index, int  ch_count, enum AVSampleFormat  f  )

static

Definition at line 39 of file swresample.c.

set()

static void set ( uint8_t *  a[], int  ch, int  index, int  ch_count, enum AVSampleFormat  f, double  v  )

static

Definition at line 59 of file swresample.c.

Referenced by decode_channel().

shift()

static void shift ( uint8_t *  a[], int  index, int  ch_count, enum AVSampleFormat  f  )

static

Definition at line 78 of file swresample.c.

Referenced by main().

setup_array()

static void setup_array ( uint8_t *  out[SWR_CH_MAX], uint8_t *  in, enum AVSampleFormat  format, int  samples  )

static

Definition at line 129 of file swresample.c.

Referenced by main().

cmp()

static int cmp ( const void *  a, const void *  b  )

static

Definition at line 142 of file swresample.c.

Referenced by main().

audiogen()

static void audiogen ( void *  data, enum AVSampleFormat  sample_fmt, int  channels, int  sample_rate, int  nb_samples  )

static

Definition at line 146 of file swresample.c.

Referenced by main().

main()

int main	(	int	argc,
		char **	argv
	)

Definition at line 225 of file swresample.c.

Variable Documentation

formats

enum AVSampleFormat formats[]

static

Initial value:

= {
    AV_SAMPLE_FMT_S16,
    AV_SAMPLE_FMT_FLTP,
    AV_SAMPLE_FMT_S16P,
    AV_SAMPLE_FMT_FLT,
    AV_SAMPLE_FMT_S32P,
    AV_SAMPLE_FMT_S32,
    AV_SAMPLE_FMT_U8P,
    AV_SAMPLE_FMT_U8,
    AV_SAMPLE_FMT_DBLP,
    AV_SAMPLE_FMT_DBL,
}

Definition at line 90 of file swresample.c.

rates

const int rates[]

static

Initial value:

= {
    8000,
    11025,
    16000,
    22050,
    32000,
    48000,
}

Definition at line 103 of file swresample.c.

Referenced by main().

layouts

const uint64_t layouts[]

static

Initial value:

={
    AV_CH_LAYOUT_MONO                    ,
    AV_CH_LAYOUT_STEREO                  ,
    AV_CH_LAYOUT_2_1                     ,
    AV_CH_LAYOUT_SURROUND                ,
    AV_CH_LAYOUT_4POINT0                 ,
    AV_CH_LAYOUT_2_2                     ,
    AV_CH_LAYOUT_QUAD                    ,
    AV_CH_LAYOUT_5POINT0                 ,
    AV_CH_LAYOUT_5POINT1                 ,
    AV_CH_LAYOUT_5POINT0_BACK            ,
    AV_CH_LAYOUT_5POINT1_BACK            ,
    AV_CH_LAYOUT_7POINT0                 ,
    AV_CH_LAYOUT_7POINT1                 ,
    AV_CH_LAYOUT_7POINT1_WIDE            ,
}

Definition at line 112 of file swresample.c.

Referenced by main().