requesthandler: Report GPU acceleration status in GetStats

docs/generated/protocol.json

@@ -1856,6 +1856,11 @@
           "valueType": "Number",
           "valueDescription": "Total number of frames outputted by the output thread"
         },
+        {
+          "valueName": "gpuAcceleration",
+          "valueType": "Object",
+          "valueDescription": "GPU acceleration status (`state` green/yellow/red, `adapter`, `detectedGpus`, `summary`, `causes`), or null when the frontend does not report it"
+        },
         {
           "valueName": "webSocketSessionIncomingMessages",
           "valueType": "Number",

docs/generated/protocol.md

@@ -2870,6 +2870,7 @@ Gets statistics about OBS, obs-websocket, and the current session.
 | renderTotalFrames | Number | Total number of frames outputted by the render thread |
 | outputSkippedFrames | Number | Number of frames skipped by OBS in the output thread |
 | outputTotalFrames | Number | Total number of frames outputted by the output thread |
+| gpuAcceleration | Object | GPU acceleration status (`state` green/yellow/red, `adapter`, `detectedGpus`, `summary`, `causes`), or null when the frontend does not report it |
 | webSocketSessionIncomingMessages | Number | Total number of messages received by obs-websocket from the client |
 | webSocketSessionOutgoingMessages | Number | Total number of messages sent by obs-websocket to the client |
 

src/requesthandler/RequestHandler_General.cpp

@@ -77,6 +77,7 @@ RequestResult RequestHandler::GetVersion(const Request &)
  * @responseField renderTotalFrames                | Number | Total number of frames outputted by the render thread
  * @responseField outputSkippedFrames              | Number | Number of frames skipped by OBS in the output thread
  * @responseField outputTotalFrames                | Number | Total number of frames outputted by the output thread
+ * @responseField gpuAcceleration                  | Object | GPU acceleration status (`state` green/yellow/red, `adapter`, `detectedGpus`, `summary`, `causes`), or null when the frontend does not report it
  * @responseField webSocketSessionIncomingMessages | Number | Total number of messages received by obs-websocket from the client
  * @responseField webSocketSessionOutgoingMessages | Number | Total number of messages sent by obs-websocket to the client
  *

src/utils/Obs_ObjectHelper.cpp

@@ -45,6 +45,20 @@ json Utils::Obs::ObjectHelper::GetStats()
 	ret["outputSkippedFrames"] = outputSkippedFrames;
 	ret["outputTotalFrames"] = outputTotalFrames;
 
+	/* GPU acceleration status from the frontend (obs-rust/obs-studio#846):
+	 * null when the frontend does not provide it. */
+	ret["gpuAcceleration"] = nullptr;
+	calldata_t cd = {0};
+	if (proc_handler_call(obs_get_proc_handler(), "get_gpu_status", &cd)) {
+		const char *status = calldata_string(&cd, "json");
+		if (status) {
+			json parsed = json::parse(status, nullptr, false);
+			if (!parsed.is_discarded())
+				ret["gpuAcceleration"] = parsed;
+		}
+	}
+	calldata_free(&cd);
+
 	return ret;
 }