Перечисления
enum	AVMatrixEncoding { AV_MATRIX_ENCODING_NONE, AV_MATRIX_ENCODING_DOLBY, AV_MATRIX_ENCODING_DPLII, AV_MATRIX_ENCODING_DPLIIX, AV_MATRIX_ENCODING_DPLIIZ, AV_MATRIX_ENCODING_DOLBYEX, AV_MATRIX_ENCODING_DOLBYHEADPHONE, AV_MATRIX_ENCODING_NB }

Функции
uint64_t	av_get_channel_layout (const char *name)

int	av_get_extended_channel_layout (const char name, uint64_t channel_layout, int *nb_channels)

void	av_get_channel_layout_string (char *buf, int buf_size, int nb_channels, uint64_t channel_layout)

void	av_bprint_channel_layout (struct AVBPrint *bp, int nb_channels, uint64_t channel_layout)

int	av_get_channel_layout_nb_channels (uint64_t channel_layout)

int64_t	av_get_default_channel_layout (int nb_channels)

int	av_get_channel_layout_channel_index (uint64_t channel_layout, uint64_t channel)

uint64_t	av_channel_layout_extract_channel (uint64_t channel_layout, int index)

const char *	av_get_channel_name (uint64_t channel)

const char *	av_get_channel_description (uint64_t channel)

int	av_get_standard_channel_layout (unsigned index, uint64_t layout, const char *name)

Подробное описание

audio channel layout utility functions

См. определение в файле channel_layout.h

Перечисления