media: add kMetadataBufferTypeGraphicBuffer
Bug: 17935149
Change-Id: I1c26d1e83d8fa0a9ccdb25f6f3b19a86b1dc6f37
diff --git a/include/media/hardware/MetadataBufferType.h b/include/media/hardware/MetadataBufferType.h
index 4eaf8ac..5876c40 100644
--- a/include/media/hardware/MetadataBufferType.h
+++ b/include/media/hardware/MetadataBufferType.h
@@ -82,6 +82,24 @@
*/
kMetadataBufferTypeGrallocSource = 1,
+ /*
+ * kMetadataBufferTypeGraphicBuffer is used to indicate that
+ * the payload of the metadata buffers can be interpreted as
+ * a GraphicBuffer. It is only to be used by software encoders.
+ * In this case, the metadata that the encoder receives
+ * will have a byte stream that consists of two parts:
+ * 1. First, there is an integer indicating that the metadata
+ * contains a GraphicBuffer (kMetadataBufferTypeGraphicBuffer)
+ * 2. This is followed by the pointer to the GraphicBuffer that
+ * is to be encoded. Encoder must not create a sp<> from this
+ * graphic buffer, or free it, as it does not actually own this
+ * buffer.
+ * --------------------------------------------------------------
+ * | kMetadataBufferTypeGraphicBuffer | sizeof(GraphicBuffer *) |
+ * --------------------------------------------------------------
+ */
+ kMetadataBufferTypeGraphicBuffer = 2,
+
// Add more here...
} MetadataBufferType;