Add keys to retrieve color aspects from metadata

Add keys to retrieve color standard, color transfer and color range from
MediaMetadataRetriever.

Bug: 114329709
Test: put hdr/non-hdr contents and check media db

Change-Id: Ifa90f12a572b330f87acd6ef06e1e83ddceb8483

1 files changed, 34 insertions, 0 deletions

diff --git a/media/java/android/media/MediaMetadataRetriever.java b/media/java/android/media/MediaMetadataRetriever.java
index 57b648e709e9..e019f4203993 100644
--- a/media/java/android/media/MediaMetadataRetriever.java
+++ b/media/java/android/media/MediaMetadataRetriever.java
@@ -923,5 +923,39 @@ public class MediaMetadataRetriever
      * @hide
      */
     public static final int METADATA_KEY_EXIF_LENGTH = 34;
+
+    /**
+     * This key retrieves the color standard, if available.
+     *
+     * @see MediaFormat#COLOR_STANDARD_BT709
+     * @see MediaFormat#COLOR_STANDARD_BT601_PAL
+     * @see MediaFormat#COLOR_STANDARD_BT601_NTSC
+     * @see MediaFormat#COLOR_STANDARD_BT2020
+     *
+     * @hide
+     */
+    public static final int METADATA_KEY_COLOR_STANDARD = 35;
+
+    /**
+     * This key retrieves the color transfer, if available.
+     *
+     * @see MediaFormat#COLOR_TRANSFER_LINEAR
+     * @see MediaFormat#COLOR_TRANSFER_SDR_VIDEO
+     * @see MediaFormat#COLOR_TRANSFER_ST2084
+     * @see MediaFormat#COLOR_TRANSFER_HLG
+     *
+     * @hide
+     */
+    public static final int METADATA_KEY_COLOR_TRANSFER = 36;
+
+    /**
+     * This key retrieves the color range, if available.
+     *
+     * @see MediaFormat#COLOR_RANGE_LIMITED
+     * @see MediaFormat#COLOR_RANGE_FULL
+     *
+     * @hide
+     */
+    public static final int METADATA_KEY_COLOR_RANGE    = 37;
     // Add more here...
 }