diff --git a/protobuf_definitions/message_formats.proto b/protobuf_definitions/message_formats.proto
index 9ab89ef4..3595c262 100644
--- a/protobuf_definitions/message_formats.proto
+++ b/protobuf_definitions/message_formats.proto
@@ -787,9 +787,11 @@ message ErrorFlags {
 // Available camera resolutions.
 enum Resolution {
   RESOLUTION_UNSPECIFIED = 0; // Resolution not specified.
-  RESOLUTION_FULLHD_1080P = 1; // 1080p Full HD resolution.
-  RESOLUTION_HD_720P = 2; // 720p HD resolution.
-  RESOLUTION_UHD_4K = 3; // 4K Ultra HD resolution.
+  RESOLUTION_VGA = 4; // VGA (640x480).
+  RESOLUTION_SVGA = 5; // SVGA (800x600).
+  RESOLUTION_HD_720P = 2; // 720p HD (1280x720).
+  RESOLUTION_FULLHD_1080P = 1; // 1080p Full HD (1920x1080).
+  RESOLUTION_UHD_4K = 3; // 4K Ultra HD (3840x2160).
 }
 
 // Available camera frame rates.
@@ -806,13 +808,20 @@ enum Camera {
   CAMERA_GUESTPORT = 2; // Guest port camera.
 }
 
+enum StreamingProtocol {
+  STREAMING_PROTOCOL_UNSPECIFIED = 0; // Streaming protocol not specified.
+  STREAMING_PROTOCOL_RTSP_H264 = 1; // RTSP streaming protocol using H264 codec.
+  STREAMING_PROTOCOL_RTSP_MJPEG = 2; // RTSP streaming protocol using MJPEG codec.
+}
+
+
 // Camera parameters.
 message CameraParameters {
   int32 h264_bitrate = 1; // Bitrate of the h264 stream (bit/sec).
   int32 mjpg_bitrate = 2; // Bitrate of the MJPG stream used for still pictures (bit/sec).
 
   int32 exposure = 3; // Shutter speed  (1/10000 * s), -1 for automatic exposure.
-  int32 white_balance = 4; // White balance temperature (Pioneer/Pro/X1/X3: 2800..9300, Ultra: 2300..15000), -1 for auto.
+  int32 white_balance = 4; // White balance temp (Pioneer/Pro/X1/X3: 2800..9300, Ultra: 2300..15000), -1 for auto.
   int32 hue = 5; // Hue (-40..40), 0 as default. Only available on Pioneer/Pro/X1/X3.
   float gain = 9; // Iso gain (0..1). Only available on Pioneer/Pro/X1/X3.
 
@@ -827,6 +836,7 @@ message CameraParameters {
   Resolution resolution = 6; // Stream, recording and image resolution (deprecated).
   Resolution stream_resolution = 10; // Stream resolution.
   Resolution recording_resolution = 11; // Recording and image resolution.
+  StreamingProtocol streaming_protocol = 20; // Streaming protocol.
   Framerate framerate = 7; // Stream and recording framerate.
   Camera camera = 8; // Which camera the parameters belong to.
   bool fixed_framerate = 19; // Prioritize fixed frame rate over quality on Ultra.