channel_layout.c File Reference

audio channel layout utility functions More...

#include <stdint.h>
#include "avstring.h"
#include "avutil.h"
#include "channel_layout.h"
#include "bprint.h"
#include "common.h"

Classes
struct	channel_name

Functions
uint64_t	av_get_channel_layout (const char *name)
	Return a channel layout id that matches name, or 0 if no match is found. More...
int	av_get_extended_channel_layout (const char *name, uint64_t *channel_layout, int *nb_channels)
	Return a channel layout and the number of channels based on the specified name. More...
void	av_bprint_channel_layout (struct AVBPrint *bp, int nb_channels, uint64_t channel_layout)
	Append a description of a channel layout to a bprint buffer.
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. More...
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.
int	av_get_channel_layout_channel_index (uint64_t channel_layout, uint64_t channel)
	Get the index of a channel in channel_layout. More...
const char *	av_get_channel_name (uint64_t channel)
	Get the name of a given channel. More...
const char *	av_get_channel_description (uint64_t channel)
	Get the description of a given channel. More...
uint64_t	av_channel_layout_extract_channel (uint64_t channel_layout, int index)
	Get the channel with the given index in channel_layout.
int	av_get_standard_channel_layout (unsigned index, uint64_t *layout, const char **name)
	Get the value and name of a standard channel layout. More...

Detailed Description

audio channel layout utility functions