diff --git a/libavutil/channel_layout.h b/libavutil/channel_layout.h index e94aeb7b8c..29b8500e04 100644 --- a/libavutil/channel_layout.h +++ b/libavutil/channel_layout.h @@ -359,6 +359,10 @@ typedef struct AVChannelLayout { #define AV_CHANNEL_LAYOUT_MASK(nb, m) \ { .order = AV_CHANNEL_ORDER_NATIVE, .nb_channels = (nb), .u = { .mask = (m) }} +/** + * @name Common pre-defined channel layouts + * @{ + */ #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) @@ -390,6 +394,7 @@ typedef struct AVChannelLayout { #define AV_CHANNEL_LAYOUT_22POINT2 AV_CHANNEL_LAYOUT_MASK(24, AV_CH_LAYOUT_22POINT2) #define AV_CHANNEL_LAYOUT_AMBISONIC_FIRST_ORDER \ { .order = AV_CHANNEL_ORDER_AMBISONIC, .nb_channels = 4, .u = { .mask = 0 }} +/** @} */ struct AVBPrint;