RequestHandler: Add VirtualCam requests

CMakeLists.txt

@@ -114,6 +114,7 @@ set(obs-websocket_SOURCES
 	src/requesthandler/RequestHandler_Transitions.cpp
 	src/requesthandler/RequestHandler_Filters.cpp
 	src/requesthandler/RequestHandler_SceneItems.cpp
+	src/requesthandler/RequestHandler_Outputs.cpp
 	src/requesthandler/RequestHandler_Stream.cpp
 	src/requesthandler/RequestHandler_Record.cpp
 	src/requesthandler/RequestHandler_MediaInputs.cpp

src/requesthandler/RequestHandler.cpp

@@ -126,6 +126,12 @@ const std::unordered_map<std::string, RequestMethodHandler> RequestHandler::_han
 	{"GetSceneItemBlendMode", &RequestHandler::GetSceneItemBlendMode},
 	{"SetSceneItemBlendMode", &RequestHandler::SetSceneItemBlendMode},
 
+	// Outputs
+	{"GetVirtualCamStatus", &RequestHandler::GetVirtualCamStatus},
+	{"ToggleVirtualCam", &RequestHandler::ToggleVirtualCam},
+	{"StartVirtualCam", &RequestHandler::StartVirtualCam},
+	{"StopVirtualCam", &RequestHandler::StopVirtualCam},
+
 	// Stream
 	{"GetStreamStatus", &RequestHandler::GetStreamStatus},
 	{"ToggleStream", &RequestHandler::ToggleStream},

src/requesthandler/RequestHandler.h

@@ -144,6 +144,12 @@ class RequestHandler {
 		RequestResult GetSceneItemBlendMode(const Request&);
 		RequestResult SetSceneItemBlendMode(const Request&);
 
+		// Outputs
+		RequestResult GetVirtualCamStatus(const Request&);
+		RequestResult ToggleVirtualCam(const Request&);
+		RequestResult StartVirtualCam(const Request&);
+		RequestResult StopVirtualCam(const Request&);
+
 		// Stream
 		RequestResult GetStreamStatus(const Request&);
 		RequestResult ToggleStream(const Request&);

src/requesthandler/RequestHandler_Outputs.cpp

@@ -0,0 +1,126 @@
+/*
+obs-websocket
+Copyright (C) 2016-2021 Stephane Lepin <stephane.lepin@gmail.com>
+Copyright (C) 2020-2021 Kyle Manning <tt2468@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along
+with this program. If not, see <https://www.gnu.org/licenses/>
+*/
+
+#include "RequestHandler.h"
+
+static bool VirtualCamAvailable()
+{
+	OBSDataAutoRelease privateData = obs_get_private_data();
+	if (!privateData)
+		return false;
+
+	return obs_data_get_bool(privateData, "vcamEnabled");
+}
+
+/**
+ * Gets the status of the virtualcam output.
+ *
+ * @responseField outputActive | Boolean | Whether the output is active
+ *
+ * @requestType GetVirtualCamStatus
+ * @complexity 1
+ * @rpcVersion -1
+ * @initialVersion 5.0.0
+ * @category outputs
+ * @api requests
+ */
+RequestResult RequestHandler::GetVirtualCamStatus(const Request&)
+{
+	if (!VirtualCamAvailable())
+		return RequestResult::Error(RequestStatus::InvalidResourceState, "VirtualCam is not available.");
+
+	json responseData;
+	responseData["outputActive"] = obs_frontend_virtualcam_active();
+	return RequestResult::Success(responseData);
+}
+
+/**
+ * Toggles the state of the virtualcam output.
+ *
+ * @responseField outputActive | Boolean | Whether the output is active
+ *
+ * @requestType ToggleVirtualCam
+ * @complexity 1
+ * @rpcVersion -1
+ * @initialVersion 5.0.0
+ * @category outputs
+ * @api requests
+ */
+RequestResult RequestHandler::ToggleVirtualCam(const Request&)
+{
+	if (!VirtualCamAvailable())
+		return RequestResult::Error(RequestStatus::InvalidResourceState, "VirtualCam is not available.");
+
+	bool outputActive = obs_frontend_virtualcam_active();
+
+	if (outputActive)
+		obs_frontend_stop_virtualcam();
+	else
+		obs_frontend_start_virtualcam();
+
+	json responseData;
+	responseData["outputActive"] = !outputActive;
+	return RequestResult::Success(responseData);
+}
+
+/**
+ * Starts the virtualcam output.
+ *
+ * @requestType StartVirtualCam
+ * @complexity 1
+ * @rpcVersion -1
+ * @initialVersion 5.0.0
+ * @api requests
+ * @category outputs
+ */
+RequestResult RequestHandler::StartVirtualCam(const Request&)
+{
+	if (!VirtualCamAvailable())
+		return RequestResult::Error(RequestStatus::InvalidResourceState, "VirtualCam is not available.");
+
+	if (obs_frontend_virtualcam_active())
+		return RequestResult::Error(RequestStatus::OutputRunning);
+
+	obs_frontend_start_virtualcam();
+
+	return RequestResult::Success();
+}
+
+/**
+ * Stops the virtualcam output.
+ *
+ * @requestType StopVirtualCam
+ * @complexity 1
+ * @rpcVersion -1
+ * @initialVersion 5.0.0
+ * @api requests
+ * @category outputs
+ */
+RequestResult RequestHandler::StopVirtualCam(const Request&)
+{
+	if (!VirtualCamAvailable())
+		return RequestResult::Error(RequestStatus::InvalidResourceState, "VirtualCam is not available.");
+
+	if (!obs_frontend_virtualcam_active())
+		return RequestResult::Error(RequestStatus::OutputNotRunning);
+
+	obs_frontend_stop_virtualcam();
+
+	return RequestResult::Success();
+}