Camera: Add new set video format/dataspace command
This allows the video encoding subsystem inform the camera what format
and dataspace should be used for metadata-mode buffers.
This is necessary to allow software encoders and other generic
consumers that cannot interpret
HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED buffers.
Bug: 13222807
Change-Id: I01090dc4dce11f075f7d3cd86daca5ecf3d9e995
diff --git a/include/system/camera.h b/include/system/camera.h
index 09c915d..5d0873a 100644
--- a/include/system/camera.h
+++ b/include/system/camera.h
@@ -174,6 +174,22 @@
* count is non-positive or too big to be realized.
*/
CAMERA_CMD_SET_VIDEO_BUFFER_COUNT = 10,
+
+ /**
+ * Configure an explicit format to use for video recording metadata mode.
+ * This can be used to switch the format from the
+ * default IMPLEMENTATION_DEFINED gralloc format to some other
+ * device-supported format, and the default dataspace from the BT_709 color
+ * space to some other device-supported dataspace. arg1 is the HAL pixel
+ * format, and arg2 is the HAL dataSpace. This command returns
+ * INVALID_OPERATION error if it is sent after video recording is started,
+ * or the command is not supported at all.
+ *
+ * If the gralloc format is set to a format other than
+ * IMPLEMENTATION_DEFINED, then HALv3 devices will use gralloc usage flags
+ * of SW_READ_OFTEN.
+ */
+ CAMERA_CMD_SET_VIDEO_FORMAT = 11
};
/** camera fatal errors */