From 9a3f2b576274f5139d863a6c15c29c8eef746181 Mon Sep 17 00:00:00 2001
From: Tom Finegan <tomfinegan@google.com>
Date: Fri, 26 Aug 2016 21:07:06 -0700
Subject: [PATCH] mkvparser_sample: Add support for Projection element.

Part of the Spherical Video V2 draft specification:
https://github.com/google/spatial-media/blob/master/docs/spherical-video-v2-rfc.md

Change-Id: I06d8e55d197fcf106b91d8d795ef85163ef5c2d5
---
 mkvparser_sample.cc | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/mkvparser_sample.cc b/mkvparser_sample.cc
index 3af1721..77aa47b 100644
--- a/mkvparser_sample.cc
+++ b/mkvparser_sample.cc
@@ -298,6 +298,25 @@ int main(int argc, char* argv[]) {
           }
         }
       }
+
+      const mkvparser::Projection* const projection =
+          pVideoTrack->GetProjection();
+      if (projection) {
+        printf("\t\tVideo Projection:\n");
+        if (projection->type != mkvparser::Projection::kTypeNotPresent)
+          printf("\t\t\tProjectionType: %d\n",
+                 static_cast<int>(projection->type));
+        if (projection->private_data) {
+          printf("\t\t\tProjectionPrivate: %u bytes\n",
+                 static_cast<unsigned int>(projection->private_data_length));
+        }
+        if (projection->pose_yaw != mkvparser::Projection::kValueNotPresent)
+          printf("\t\t\tProjectionPoseYaw: %f\n", projection->pose_yaw);
+        if (projection->pose_pitch != mkvparser::Projection::kValueNotPresent)
+          printf("\t\t\tProjectionPosePitch: %f\n", projection->pose_pitch);
+        if (projection->pose_roll != mkvparser::Projection::kValueNotPresent)
+          printf("\t\t\tProjectionPosePitch: %f\n", projection->pose_roll);
+      }
     }
 
     if (trackType == mkvparser::Track::kAudio) {