Merge commit 'e23f84d9'

* commit 'e23f84d9':
  channel_layout: Add a 16channel default layout
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

libavutil/channel_layout.c

@@ -102,6 +102,7 @@ static const struct {
     { "7.1(wide)",   8,  AV_CH_LAYOUT_7POINT1_WIDE_BACK },
     { "7.1(wide-side)",   8,  AV_CH_LAYOUT_7POINT1_WIDE },
     { "octagonal",   8,  AV_CH_LAYOUT_OCTAGONAL },
+    { "hexadecagonal", 16, AV_CH_LAYOUT_HEXADECAGONAL },
     { "downmix",     2,  AV_CH_LAYOUT_STEREO_DOWNMIX, },
 };
 

libavutil/channel_layout.h

@@ -108,6 +108,7 @@
 #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_OCTAGONAL         (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_CENTER|AV_CH_BACK_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_STEREO_DOWNMIX    (AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT)
 
 enum AVMatrixEncoding {