webm: support stereo videos in matroska/webm muxer

Create a stereo_mode metadata tag to specify the stereo 3d video layout
using the StereoMode tag in a matroska/webm video track.

1 files changed, 19 insertions, 1 deletions

diff --git a/libavformat/matroska.h b/libavformat/matroska.h
index 45d9747d39..8e747e6a9c 100644
--- a/libavformat/matroska.h
+++ b/libavformat/matroska.h
@@ -111,7 +111,7 @@
 #define MATROSKA_ID_VIDEOPIXELCROPR 0x54DD
 #define MATROSKA_ID_VIDEODISPLAYUNIT 0x54B2
 #define MATROSKA_ID_VIDEOFLAGINTERLACED 0x9A
-#define MATROSKA_ID_VIDEOSTEREOMODE 0x53B9
+#define MATROSKA_ID_VIDEOSTEREOMODE 0x53B8
 #define MATROSKA_ID_VIDEOASPECTRATIO 0x54B3
 #define MATROSKA_ID_VIDEOCOLORSPACE 0x2EB524
 
@@ -218,6 +218,24 @@ typedef enum {
   MATROSKA_TRACK_ENCODING_COMP_HEADERSTRIP = 3,
 } MatroskaTrackEncodingCompAlgo;
 
+typedef enum {
+  MATROSKA_VIDEO_STEREOMODE_TYPE_MONO               = 0,
+  MATROSKA_VIDEO_STEREOMODE_TYPE_LEFT_RIGHT         = 1,
+  MATROSKA_VIDEO_STEREOMODE_TYPE_BOTTOM_TOP         = 2,
+  MATROSKA_VIDEO_STEREOMODE_TYPE_TOP_BOTTOM         = 3,
+  MATROSKA_VIDEO_STEREOMODE_TYPE_CHECKERBOARD_RL    = 4,
+  MATROSKA_VIDEO_STEREOMODE_TYPE_CHECKERBOARD_LR    = 5,
+  MATROSKA_VIDEO_STEREOMODE_TYPE_ROW_INTERLEAVED_RL = 6,
+  MATROSKA_VIDEO_STEREOMODE_TYPE_ROW_INTERLEAVED_LR = 7,
+  MATROSKA_VIDEO_STEREOMODE_TYPE_COL_INTERLEAVED_RL = 8,
+  MATROSKA_VIDEO_STEREOMODE_TYPE_COL_INTERLEAVED_LR = 9,
+  MATROSKA_VIDEO_STEREOMODE_TYPE_ANAGLYPH_CYAN_RED  = 10,
+  MATROSKA_VIDEO_STEREOMODE_TYPE_RIGHT_LEFT         = 11,
+  MATROSKA_VIDEO_STEREOMODE_TYPE_ANAGLYPH_GREEN_MAG = 12,
+  MATROSKA_VIDEO_STEREOMODE_TYPE_BOTH_EYES_BLOCK_LR = 13,
+  MATROSKA_VIDEO_STEREOMODE_TYPE_BOTH_EYES_BLOCK_RL = 14,
+} MatroskaVideoStereoModeType;
+
 /*
  * Matroska Codec IDs, strings
  */