|  | 
| #define | AV_CH_FRONT_LEFT   (1ULL << AV_CHAN_FRONT_LEFT           ) | 
|  | 
| #define | AV_CH_FRONT_RIGHT   (1ULL << AV_CHAN_FRONT_RIGHT          ) | 
|  | 
| #define | AV_CH_FRONT_CENTER   (1ULL << AV_CHAN_FRONT_CENTER         ) | 
|  | 
| #define | AV_CH_LOW_FREQUENCY   (1ULL << AV_CHAN_LOW_FREQUENCY        ) | 
|  | 
| #define | AV_CH_BACK_LEFT   (1ULL << AV_CHAN_BACK_LEFT            ) | 
|  | 
| #define | AV_CH_BACK_RIGHT   (1ULL << AV_CHAN_BACK_RIGHT           ) | 
|  | 
| #define | AV_CH_FRONT_LEFT_OF_CENTER   (1ULL << AV_CHAN_FRONT_LEFT_OF_CENTER ) | 
|  | 
| #define | AV_CH_FRONT_RIGHT_OF_CENTER   (1ULL << AV_CHAN_FRONT_RIGHT_OF_CENTER) | 
|  | 
| #define | AV_CH_BACK_CENTER   (1ULL << AV_CHAN_BACK_CENTER          ) | 
|  | 
| #define | AV_CH_SIDE_LEFT   (1ULL << AV_CHAN_SIDE_LEFT            ) | 
|  | 
| #define | AV_CH_SIDE_RIGHT   (1ULL << AV_CHAN_SIDE_RIGHT           ) | 
|  | 
| #define | AV_CH_TOP_CENTER   (1ULL << AV_CHAN_TOP_CENTER           ) | 
|  | 
| #define | AV_CH_TOP_FRONT_LEFT   (1ULL << AV_CHAN_TOP_FRONT_LEFT       ) | 
|  | 
| #define | AV_CH_TOP_FRONT_CENTER   (1ULL << AV_CHAN_TOP_FRONT_CENTER     ) | 
|  | 
| #define | AV_CH_TOP_FRONT_RIGHT   (1ULL << AV_CHAN_TOP_FRONT_RIGHT      ) | 
|  | 
| #define | AV_CH_TOP_BACK_LEFT   (1ULL << AV_CHAN_TOP_BACK_LEFT        ) | 
|  | 
| #define | AV_CH_TOP_BACK_CENTER   (1ULL << AV_CHAN_TOP_BACK_CENTER      ) | 
|  | 
| #define | AV_CH_TOP_BACK_RIGHT   (1ULL << AV_CHAN_TOP_BACK_RIGHT       ) | 
|  | 
| #define | AV_CH_STEREO_LEFT   (1ULL << AV_CHAN_STEREO_LEFT          ) | 
|  | 
| #define | AV_CH_STEREO_RIGHT   (1ULL << AV_CHAN_STEREO_RIGHT         ) | 
|  | 
| #define | AV_CH_WIDE_LEFT   (1ULL << AV_CHAN_WIDE_LEFT            ) | 
|  | 
| #define | AV_CH_WIDE_RIGHT   (1ULL << AV_CHAN_WIDE_RIGHT           ) | 
|  | 
| #define | AV_CH_SURROUND_DIRECT_LEFT   (1ULL << AV_CHAN_SURROUND_DIRECT_LEFT ) | 
|  | 
| #define | AV_CH_SURROUND_DIRECT_RIGHT   (1ULL << AV_CHAN_SURROUND_DIRECT_RIGHT) | 
|  | 
| #define | AV_CH_LOW_FREQUENCY_2   (1ULL << AV_CHAN_LOW_FREQUENCY_2      ) | 
|  | 
| #define | AV_CH_TOP_SIDE_LEFT   (1ULL << AV_CHAN_TOP_SIDE_LEFT        ) | 
|  | 
| #define | AV_CH_TOP_SIDE_RIGHT   (1ULL << AV_CHAN_TOP_SIDE_RIGHT       ) | 
|  | 
| #define | AV_CH_BOTTOM_FRONT_CENTER   (1ULL << AV_CHAN_BOTTOM_FRONT_CENTER  ) | 
|  | 
| #define | AV_CH_BOTTOM_FRONT_LEFT   (1ULL << AV_CHAN_BOTTOM_FRONT_LEFT    ) | 
|  | 
| #define | AV_CH_BOTTOM_FRONT_RIGHT   (1ULL << AV_CHAN_BOTTOM_FRONT_RIGHT   ) | 
|  | 
| #define | AV_CH_SIDE_SURROUND_LEFT   (1ULL << AV_CHAN_SIDE_SURROUND_LEFT   ) | 
|  | 
| #define | AV_CH_SIDE_SURROUND_RIGHT   (1ULL << AV_CHAN_SIDE_SURROUND_RIGHT  ) | 
|  | 
| #define | AV_CH_TOP_SURROUND_LEFT   (1ULL << AV_CHAN_TOP_SURROUND_LEFT    ) | 
|  | 
| #define | AV_CH_TOP_SURROUND_RIGHT   (1ULL << AV_CHAN_TOP_SURROUND_RIGHT   ) | 
|  | 
| #define | AV_CH_BINAURAL_LEFT   (1ULL << AV_CHAN_BINAURAL_LEFT        ) | 
|  | 
| #define | AV_CH_BINAURAL_RIGHT   (1ULL << AV_CHAN_BINAURAL_RIGHT       ) | 
|  | 
| #define | AV_CH_LAYOUT_MONO   (AV_CH_FRONT_CENTER) | 
|  | 
| #define | AV_CH_LAYOUT_STEREO   (AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT) | 
|  | 
| #define | AV_CH_LAYOUT_2POINT1   (AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY) | 
|  | 
| #define | AV_CH_LAYOUT_2_1   (AV_CH_LAYOUT_STEREO|AV_CH_BACK_CENTER) | 
|  | 
| #define | AV_CH_LAYOUT_SURROUND   (AV_CH_LAYOUT_STEREO|AV_CH_FRONT_CENTER) | 
|  | 
| #define | AV_CH_LAYOUT_3POINT1   (AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY) | 
|  | 
| #define | AV_CH_LAYOUT_4POINT0   (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_CENTER) | 
|  | 
| #define | AV_CH_LAYOUT_4POINT1   (AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY) | 
|  | 
| #define | AV_CH_LAYOUT_2_2   (AV_CH_LAYOUT_STEREO|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT) | 
|  | 
| #define | AV_CH_LAYOUT_QUAD   (AV_CH_LAYOUT_STEREO|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT) | 
|  | 
| #define | AV_CH_LAYOUT_5POINT0   (AV_CH_LAYOUT_SURROUND|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT) | 
|  | 
| #define | AV_CH_LAYOUT_5POINT1   (AV_CH_LAYOUT_5POINT0|AV_CH_LOW_FREQUENCY) | 
|  | 
| #define | AV_CH_LAYOUT_5POINT0_BACK   (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT) | 
|  | 
| #define | AV_CH_LAYOUT_5POINT1_BACK   (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_LOW_FREQUENCY) | 
|  | 
| #define | AV_CH_LAYOUT_6POINT0   (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_CENTER) | 
|  | 
| #define | AV_CH_LAYOUT_6POINT0_FRONT   (AV_CH_LAYOUT_2_2|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER) | 
|  | 
| #define | AV_CH_LAYOUT_HEXAGONAL   (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_BACK_CENTER) | 
|  | 
| #define | AV_CH_LAYOUT_3POINT1POINT2   (AV_CH_LAYOUT_3POINT1|AV_CH_TOP_FRONT_LEFT|AV_CH_TOP_FRONT_RIGHT) | 
|  | 
| #define | AV_CH_LAYOUT_6POINT1   (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_CENTER) | 
|  | 
| #define | AV_CH_LAYOUT_6POINT1_BACK   (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_BACK_CENTER) | 
|  | 
| #define | AV_CH_LAYOUT_6POINT1_FRONT   (AV_CH_LAYOUT_6POINT0_FRONT|AV_CH_LOW_FREQUENCY) | 
|  | 
| #define | AV_CH_LAYOUT_7POINT0   (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT) | 
|  | 
| #define | AV_CH_LAYOUT_7POINT0_FRONT   (AV_CH_LAYOUT_5POINT0|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER) | 
|  | 
| #define | AV_CH_LAYOUT_7POINT1   (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT) | 
|  | 
| #define | AV_CH_LAYOUT_7POINT1_WIDE   (AV_CH_LAYOUT_5POINT1|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER) | 
|  | 
| #define | AV_CH_LAYOUT_7POINT1_WIDE_BACK   (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER) | 
|  | 
| #define | AV_CH_LAYOUT_5POINT1POINT2   (AV_CH_LAYOUT_5POINT1|AV_CH_TOP_FRONT_LEFT|AV_CH_TOP_FRONT_RIGHT) | 
|  | 
| #define | AV_CH_LAYOUT_5POINT1POINT2_BACK   (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_TOP_FRONT_LEFT|AV_CH_TOP_FRONT_RIGHT) | 
|  | 
| #define | AV_CH_LAYOUT_OCTAGONAL   (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_CENTER|AV_CH_BACK_RIGHT) | 
|  | 
| #define | AV_CH_LAYOUT_CUBE   (AV_CH_LAYOUT_QUAD|AV_CH_TOP_FRONT_LEFT|AV_CH_TOP_FRONT_RIGHT|AV_CH_TOP_BACK_LEFT|AV_CH_TOP_BACK_RIGHT) | 
|  | 
| #define | AV_CH_LAYOUT_5POINT1POINT4_BACK   (AV_CH_LAYOUT_5POINT1POINT2|AV_CH_TOP_BACK_LEFT|AV_CH_TOP_BACK_RIGHT) | 
|  | 
| #define | AV_CH_LAYOUT_7POINT1POINT2   (AV_CH_LAYOUT_7POINT1|AV_CH_TOP_FRONT_LEFT|AV_CH_TOP_FRONT_RIGHT) | 
|  | 
| #define | AV_CH_LAYOUT_7POINT1POINT4_BACK   (AV_CH_LAYOUT_7POINT1POINT2|AV_CH_TOP_BACK_LEFT|AV_CH_TOP_BACK_RIGHT) | 
|  | 
| #define | AV_CH_LAYOUT_7POINT2POINT3   (AV_CH_LAYOUT_7POINT1POINT2|AV_CH_TOP_BACK_CENTER|AV_CH_LOW_FREQUENCY_2) | 
|  | 
| #define | AV_CH_LAYOUT_9POINT1POINT4_BACK   (AV_CH_LAYOUT_7POINT1POINT4_BACK|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER) | 
|  | 
| #define | AV_CH_LAYOUT_9POINT1POINT6   (AV_CH_LAYOUT_9POINT1POINT4_BACK|AV_CH_TOP_SIDE_LEFT|AV_CH_TOP_SIDE_RIGHT) | 
|  | 
| #define | AV_CH_LAYOUT_HEXADECAGONAL   (AV_CH_LAYOUT_OCTAGONAL|AV_CH_WIDE_LEFT|AV_CH_WIDE_RIGHT|AV_CH_TOP_BACK_LEFT|AV_CH_TOP_BACK_RIGHT|AV_CH_TOP_BACK_CENTER|AV_CH_TOP_FRONT_CENTER|AV_CH_TOP_FRONT_LEFT|AV_CH_TOP_FRONT_RIGHT) | 
|  | 
| #define | AV_CH_LAYOUT_BINAURAL   (AV_CH_BINAURAL_LEFT|AV_CH_BINAURAL_RIGHT) | 
|  | 
| #define | AV_CH_LAYOUT_STEREO_DOWNMIX   (AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT) | 
|  | 
| #define | AV_CH_LAYOUT_22POINT2   (AV_CH_LAYOUT_9POINT1POINT6|AV_CH_BACK_CENTER|AV_CH_LOW_FREQUENCY_2|AV_CH_TOP_FRONT_CENTER|AV_CH_TOP_CENTER|AV_CH_TOP_BACK_CENTER|AV_CH_BOTTOM_FRONT_CENTER|AV_CH_BOTTOM_FRONT_LEFT|AV_CH_BOTTOM_FRONT_RIGHT) | 
|  | 
| #define | AV_CH_LAYOUT_7POINT1_TOP_BACK   AV_CH_LAYOUT_5POINT1POINT2_BACK | 
|  | 
| #define | AV_CHANNEL_LAYOUT_MASK(nb,  m) | 
|  | Macro to define native channel layouts.  More... 
 | 
|  | 
| #define | AV_CHANNEL_LAYOUT_RETYPE_FLAG_LOSSLESS   (1 << 0) | 
|  | The conversion must be lossless.  More... 
 | 
|  | 
| #define | AV_CHANNEL_LAYOUT_RETYPE_FLAG_CANONICAL   (1 << 1) | 
|  | The specified retype target order is ignored and the simplest possible (canonical) order is used for which the input layout can be losslessy represented.  More... 
 | 
|  | 
|  | 
| #define | AV_CHANNEL_LAYOUT_MONO   AV_CHANNEL_LAYOUT_MASK(1,  AV_CH_LAYOUT_MONO) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_STEREO   AV_CHANNEL_LAYOUT_MASK(2,  AV_CH_LAYOUT_STEREO) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_2POINT1   AV_CHANNEL_LAYOUT_MASK(3,  AV_CH_LAYOUT_2POINT1) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_2_1   AV_CHANNEL_LAYOUT_MASK(3,  AV_CH_LAYOUT_2_1) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_SURROUND   AV_CHANNEL_LAYOUT_MASK(3,  AV_CH_LAYOUT_SURROUND) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_3POINT1   AV_CHANNEL_LAYOUT_MASK(4,  AV_CH_LAYOUT_3POINT1) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_4POINT0   AV_CHANNEL_LAYOUT_MASK(4,  AV_CH_LAYOUT_4POINT0) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_4POINT1   AV_CHANNEL_LAYOUT_MASK(5,  AV_CH_LAYOUT_4POINT1) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_2_2   AV_CHANNEL_LAYOUT_MASK(4,  AV_CH_LAYOUT_2_2) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_QUAD   AV_CHANNEL_LAYOUT_MASK(4,  AV_CH_LAYOUT_QUAD) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_5POINT0   AV_CHANNEL_LAYOUT_MASK(5,  AV_CH_LAYOUT_5POINT0) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_5POINT1   AV_CHANNEL_LAYOUT_MASK(6,  AV_CH_LAYOUT_5POINT1) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_5POINT0_BACK   AV_CHANNEL_LAYOUT_MASK(5,  AV_CH_LAYOUT_5POINT0_BACK) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_5POINT1_BACK   AV_CHANNEL_LAYOUT_MASK(6,  AV_CH_LAYOUT_5POINT1_BACK) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_6POINT0   AV_CHANNEL_LAYOUT_MASK(6,  AV_CH_LAYOUT_6POINT0) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_6POINT0_FRONT   AV_CHANNEL_LAYOUT_MASK(6,  AV_CH_LAYOUT_6POINT0_FRONT) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_3POINT1POINT2   AV_CHANNEL_LAYOUT_MASK(6,  AV_CH_LAYOUT_3POINT1POINT2) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_HEXAGONAL   AV_CHANNEL_LAYOUT_MASK(6,  AV_CH_LAYOUT_HEXAGONAL) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_6POINT1   AV_CHANNEL_LAYOUT_MASK(7,  AV_CH_LAYOUT_6POINT1) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_6POINT1_BACK   AV_CHANNEL_LAYOUT_MASK(7,  AV_CH_LAYOUT_6POINT1_BACK) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_6POINT1_FRONT   AV_CHANNEL_LAYOUT_MASK(7,  AV_CH_LAYOUT_6POINT1_FRONT) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_7POINT0   AV_CHANNEL_LAYOUT_MASK(7,  AV_CH_LAYOUT_7POINT0) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_7POINT0_FRONT   AV_CHANNEL_LAYOUT_MASK(7,  AV_CH_LAYOUT_7POINT0_FRONT) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_7POINT1   AV_CHANNEL_LAYOUT_MASK(8,  AV_CH_LAYOUT_7POINT1) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_7POINT1_WIDE   AV_CHANNEL_LAYOUT_MASK(8,  AV_CH_LAYOUT_7POINT1_WIDE) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_7POINT1_WIDE_BACK   AV_CHANNEL_LAYOUT_MASK(8,  AV_CH_LAYOUT_7POINT1_WIDE_BACK) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_5POINT1POINT2   AV_CHANNEL_LAYOUT_MASK(8,  AV_CH_LAYOUT_5POINT1POINT2) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_5POINT1POINT2_BACK   AV_CHANNEL_LAYOUT_MASK(8, AV_CH_LAYOUT_5POINT1POINT2_BACK) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_OCTAGONAL   AV_CHANNEL_LAYOUT_MASK(8,  AV_CH_LAYOUT_OCTAGONAL) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_CUBE   AV_CHANNEL_LAYOUT_MASK(8,  AV_CH_LAYOUT_CUBE) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_5POINT1POINT4_BACK   AV_CHANNEL_LAYOUT_MASK(10, AV_CH_LAYOUT_5POINT1POINT4_BACK) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_7POINT1POINT2   AV_CHANNEL_LAYOUT_MASK(10, AV_CH_LAYOUT_7POINT1POINT2) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_7POINT1POINT4_BACK   AV_CHANNEL_LAYOUT_MASK(12, AV_CH_LAYOUT_7POINT1POINT4_BACK) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_7POINT2POINT3   AV_CHANNEL_LAYOUT_MASK(12, AV_CH_LAYOUT_7POINT2POINT3) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_9POINT1POINT4_BACK   AV_CHANNEL_LAYOUT_MASK(14, AV_CH_LAYOUT_9POINT1POINT4_BACK) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_9POINT1POINT6   AV_CHANNEL_LAYOUT_MASK(16, AV_CH_LAYOUT_9POINT1POINT6) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_HEXADECAGONAL   AV_CHANNEL_LAYOUT_MASK(16, AV_CH_LAYOUT_HEXADECAGONAL) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_BINAURAL   AV_CHANNEL_LAYOUT_MASK(2,  AV_CH_LAYOUT_BINAURAL) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_STEREO_DOWNMIX   AV_CHANNEL_LAYOUT_MASK(2,  AV_CH_LAYOUT_STEREO_DOWNMIX) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_22POINT2   AV_CHANNEL_LAYOUT_MASK(24, AV_CH_LAYOUT_22POINT2) | 
|  | 
| #define | AV_CHANNEL_LAYOUT_7POINT1_TOP_BACK   AV_CHANNEL_LAYOUT_5POINT1POINT2_BACK | 
|  | 
| #define | AV_CHANNEL_LAYOUT_AMBISONIC_FIRST_ORDER | 
|  | 
|  | 
| int | av_channel_name (char *buf, size_t buf_size, enum AVChannel channel) | 
|  | Get a human readable string in an abbreviated form describing a given channel.  More... 
 | 
|  | 
| void | av_channel_name_bprint (struct AVBPrint *bp, enum AVChannel channel_id) | 
|  | bprint variant of av_channel_name().  More... 
 | 
|  | 
| int | av_channel_description (char *buf, size_t buf_size, enum AVChannel channel) | 
|  | Get a human readable string describing a given channel.  More... 
 | 
|  | 
| void | av_channel_description_bprint (struct AVBPrint *bp, enum AVChannel channel_id) | 
|  | bprint variant of av_channel_description().  More... 
 | 
|  | 
| enum AVChannel | av_channel_from_string (const char *name) | 
|  | This is the inverse function of av_channel_name().  More... 
 | 
|  | 
| int | av_channel_layout_custom_init (AVChannelLayout *channel_layout, int nb_channels) | 
|  | Initialize a custom channel layout with the specified number of channels.  More... 
 | 
|  | 
| int | av_channel_layout_from_mask (AVChannelLayout *channel_layout, uint64_t mask) | 
|  | Initialize a native channel layout from a bitmask indicating which channels are present.  More... 
 | 
|  | 
| int | av_channel_layout_from_string (AVChannelLayout *channel_layout, const char *str) | 
|  | Initialize a channel layout from a given string description.  More... 
 | 
|  | 
| void | av_channel_layout_default (AVChannelLayout *ch_layout, int nb_channels) | 
|  | Get the default channel layout for a given number of channels.  More... 
 | 
|  | 
| const AVChannelLayout * | av_channel_layout_standard (void **opaque) | 
|  | Iterate over all standard channel layouts.  More... 
 | 
|  | 
| void | av_channel_layout_uninit (AVChannelLayout *channel_layout) | 
|  | Free any allocated data in the channel layout and reset the channel count to 0.  More... 
 | 
|  | 
| int | av_channel_layout_copy (AVChannelLayout *dst, const AVChannelLayout *src) | 
|  | Make a copy of a channel layout.  More... 
 | 
|  | 
| int | av_channel_layout_describe (const AVChannelLayout *channel_layout, char *buf, size_t buf_size) | 
|  | Get a human-readable string describing the channel layout properties.  More... 
 | 
|  | 
| int | av_channel_layout_describe_bprint (const AVChannelLayout *channel_layout, struct AVBPrint *bp) | 
|  | bprint variant of av_channel_layout_describe().  More... 
 | 
|  | 
| enum AVChannel | av_channel_layout_channel_from_index (const AVChannelLayout *channel_layout, unsigned int idx) | 
|  | Get the channel with the given index in a channel layout.  More... 
 | 
|  | 
| int | av_channel_layout_index_from_channel (const AVChannelLayout *channel_layout, enum AVChannel channel) | 
|  | Get the index of a given channel in a channel layout.  More... 
 | 
|  | 
| int | av_channel_layout_index_from_string (const AVChannelLayout *channel_layout, const char *name) | 
|  | Get the index in a channel layout of a channel described by the given string.  More... 
 | 
|  | 
| enum AVChannel | av_channel_layout_channel_from_string (const AVChannelLayout *channel_layout, const char *name) | 
|  | Get a channel described by the given string.  More... 
 | 
|  | 
| uint64_t | av_channel_layout_subset (const AVChannelLayout *channel_layout, uint64_t mask) | 
|  | Find out what channels from a given set are present in a channel layout, without regard for their positions.  More... 
 | 
|  | 
| int | av_channel_layout_check (const AVChannelLayout *channel_layout) | 
|  | Check whether a channel layout is valid, i.e.  More... 
 | 
|  | 
| int | av_channel_layout_compare (const AVChannelLayout *chl, const AVChannelLayout *chl1) | 
|  | Check whether two channel layouts are semantically the same, i.e.  More... 
 | 
|  | 
| int | av_channel_layout_ambisonic_order (const AVChannelLayout *channel_layout) | 
|  | Return the order if the layout is n-th order standard-order ambisonic.  More... 
 | 
|  | 
| int | av_channel_layout_retype (AVChannelLayout *channel_layout, enum AVChannelOrder order, int flags) | 
|  | Change the AVChannelOrder of a channel layout.  More... 
 | 
|  | 
Public libavutil channel layout APIs header. 
Definition in file channel_layout.h.