Add streaming sample

digital-twin-model/dtdl/v3/spec/sdv/camera.json

@@ -1,4 +1,4 @@
-[
+[ 
   {
     "@context": "dtmi:dtdl:context;3",
     "@type": "Interface",
@@ -9,8 +9,24 @@
         "@type": "Property",
         "@id": "dtmi:sdv:Camera:Feed;1",
         "name": "Feed",
-        "schema": "string",
-        "description": "The cabin camera's feed for inside the cabin."
+        "description": "The camera feed inside of the cabin.",
+        "schema": {
+          "@type": "Object",
+          "fields": [
+            {
+              "name": "MediaType",
+              "schema": "string"
+            },
+            {
+              "name": "MediaContent",
+              "description": "An array of bytes (represented by integers here).",
+              "schema": {
+                "@type": "Array",
+                "elementSchema": "integer"
+              }
+            }
+          ]
+        }        
       }
     ]
   }

digital-twin-model/src/sdv_v1.rs

@@ -4,6 +4,9 @@
 
 // Note: In the future this code should be generated from a DTDL spec.
 
+#[allow(unused_imports)]
+use std::vec::Vec;
+
 pub mod airbag_seat_massager {
     pub mod massage_airbags {
         pub const ID: &str = "dtmi:sdv:AirbagSeatMassager:MassageAirbags;1";
@@ -13,12 +16,17 @@ pub mod airbag_seat_massager {
     }
 }
 
+#[allow(dead_code)]
 pub mod camera {
     pub mod feed {
         pub const ID: &str = "dtmi:sdv:Camera:Feed;1";
         pub const NAME: &str = "Feed";
-        pub const DESCRIPTION: &str = "The cabin camera's feed for inside the cabin.";
-        pub type TYPE = String;
+        pub const DESCRIPTION: &str = "The camera feed inside of the cabin.";
+        pub struct Media {
+            media_type: String,
+            media_content: Vec<u8>,
+        }
+        pub type TYPE = Media;
     }
 }
 

docs/design/diagrams/stream_sequence.puml

@@ -9,7 +9,7 @@ entityAccessInfo:
 {
     name: "Feed"
     id: "dtmi:sdv:Camera:Feed;1"
-    description: "The cabin camera's feed for inside the cabin."
+    description: "The camera feed inside of the cabin."
     endpointInfoList: [
         {
             protocol: "grpc"