Check for depth map payload

The depth map payload presence is required
according to specification.

Bug:123316622
Test: Camera CTS
Change-Id: I4b4174246b7dc21a4d01da638a4563d85fa14317
diff --git a/README.android b/README.android
index 00f3c0b..248e7b6 100644
--- a/README.android
+++ b/README.android
@@ -7,3 +7,4 @@
 -------------
 - Android depth photo validation sequence "ValidateAndroidDynamicDepthBuffer()".
 - Add NDK library variant.
+- Check for depth map payload
diff --git a/internal/dynamic_depth/depth_jpeg.cc b/internal/dynamic_depth/depth_jpeg.cc
index ec5ab89..396a41e 100644
--- a/internal/dynamic_depth/depth_jpeg.cc
+++ b/internal/dynamic_depth/depth_jpeg.cc
@@ -104,6 +104,18 @@
     return -1;
   }
 
+  std::istringstream input_jpeg_stream(std::string(buffer, buffer_length));
+  std::string depth_payload;
+  if (!GetItemPayload(device->GetContainer(), depth_uri, input_jpeg_stream, &depth_payload)) {
+    LOG(ERROR) << "Unable to retrieve depth map";
+    return -1;
+  }
+
+  if (depth_payload.empty()) {
+    LOG(ERROR) << "Invalid depth map";
+    return -1;
+  }
+
   return 0;
 }