libavutil/audioconvert.c File Reference

audio conversion routines More...

#include "avstring.h"
#include "avutil.h"
#include "audioconvert.h"

Go to the source code of this file.

Functions
static const char *	get_channel_name (int channel_id)
static uint64_t	get_channel_layout_single (const char *name, int name_len)
uint64_t	av_get_channel_layout (const char *name)
	Return a channel layout id that matches name, 0 if no match.
void	av_get_channel_layout_string (char *buf, int buf_size, int nb_channels, uint64_t channel_layout)
	Return a description of a channel layout.
int	av_get_channel_layout_nb_channels (uint64_t channel_layout)
	Return the number of channels in the channel layout.
int64_t	av_get_default_channel_layout (int nb_channels)
	Return default channel layout for a given number of channels.
Variables
static const char *const	channel_names []
struct {
const char *   name
int   nb_channels
uint64_t   layout
}	channel_layout_map []

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Detailed Description

audio conversion routines

Definition in file audioconvert.c.

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Function Documentation

static uint64_t get_channel_layout_single	(	const char *	name,
		int	name_len
	)			[static]

Definition at line 80 of file audioconvert.c.

Referenced by av_get_channel_layout().

static const char* get_channel_name

(

int

channel_id

)

[static]

Definition at line 53 of file audioconvert.c.

Referenced by av_get_channel_layout_string().

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Variable Documentation

struct { ... } channel_layout_map[] [static]

Referenced by av_get_channel_layout_string(), av_get_default_channel_layout(), and get_channel_layout_single().

const char* const channel_names[] [static]

Initial value:

 {
    [0]  = "FL",        
    [1]  = "FR",        
    [2]  = "FC",        
    [3]  = "LFE",       
    [4]  = "BL",        
    [5]  = "BR",        
    [6]  = "FLC",       
    [7]  = "FRC",       
    [8]  = "BC",        
    [9]  = "SL",        
    [10] = "SR",        
    [11] = "TC",        
    [12] = "TFL",       
    [13] = "TFC",       
    [14] = "TFR",       
    [15] = "TBL",       
    [16] = "TBC",       
    [17] = "TBR",       
    [29] = "DL",        
    [30] = "DR",        
}

Definition at line 30 of file audioconvert.c.

Referenced by get_channel_layout_single(), and get_channel_name().

uint64_t layout

Definition at line 63 of file audioconvert.c.

Referenced by av_get_channel_layout(), av_get_channel_layout_string(), config_output(), ff_alsa_open(), ff_mov_get_channel_layout_tag(), ff_truehd_layout(), get_channel_layout_single(), mxf_read_pixel_layout(), parse_channel_name(), and snprint_link_prop().

const char* name

Definition at line 61 of file audioconvert.c.

int nb_channels

Definition at line 62 of file audioconvert.c.

Referenced by av_asrc_buffer_add_buffer(), avfilter_default_get_audio_buffer(), celt_header(), filter_samples(), init_buffers(), main(), and uninit().