UI: Support FTL URLs for custom streaming service

Custom streaming service URLs beginning with `ftl` are handled by the
`ftl_output` plugin.

UI/window-basic-main-outputs.cpp

@@ -16,6 +16,7 @@ volatile bool recording_paused = false;
 volatile bool replaybuf_active = false;
 volatile bool virtualcam_active = false;
 
+#define FTL_PROTOCOL "ftl"
 #define RTMP_PROTOCOL "rtmp"
 
 static void OBSStreamStarting(void *data, calldata_t *params)
@@ -763,7 +764,10 @@ bool SimpleOutput::SetupStreaming(obs_service_t *service)
 		type = "rtmp_output";
 		const char *url = obs_service_get_url(service);
 		if (url != NULL &&
-		    strncmp(url, RTMP_PROTOCOL, strlen(RTMP_PROTOCOL)) != 0) {
+		    strncmp(url, FTL_PROTOCOL, strlen(FTL_PROTOCOL)) == 0) {
+			type = "ftl_output";
+		} else if (url != NULL && strncmp(url, RTMP_PROTOCOL,
+						  strlen(RTMP_PROTOCOL)) != 0) {
 			type = "ffmpeg_mpegts_muxer";
 		}
 	}
@@ -1684,7 +1688,10 @@ bool AdvancedOutput::SetupStreaming(obs_service_t *service)
 		type = "rtmp_output";
 		const char *url = obs_service_get_url(service);
 		if (url != NULL &&
-		    strncmp(url, RTMP_PROTOCOL, strlen(RTMP_PROTOCOL)) != 0) {
+		    strncmp(url, FTL_PROTOCOL, strlen(FTL_PROTOCOL)) == 0) {
+			type = "ftl_output";
+		} else if (url != NULL && strncmp(url, RTMP_PROTOCOL,
+						  strlen(RTMP_PROTOCOL)) != 0) {
 			type = "ffmpeg_mpegts_muxer";
 		}
 	}

plugins/obs-outputs/ftl-stream.c

@@ -45,6 +45,8 @@
 #define OPT_MAX_SHUTDOWN_TIME_SEC "max_shutdown_time_sec"
 #define OPT_BIND_IP "bind_ip"
 
+#define FTL_URL_PROTOCOL "ftl://"
+
 typedef struct _nalu_t {
 	int len;
 	int dts_usec;
@@ -1020,7 +1022,7 @@ static int init_connect(struct ftl_stream *stream)
 {
 	obs_service_t *service;
 	obs_data_t *settings;
-	const char *bind_ip, *key;
+	const char *bind_ip, *key, *ingest_url;
 	ftl_status_t status_code;
 
 	info("init_connect");
@@ -1046,7 +1048,14 @@ static int init_connect(struct ftl_stream *stream)
 		obs_output_get_video_encoder(stream->output);
 	obs_data_t *video_settings = obs_encoder_get_settings(video_encoder);
 
-	dstr_copy(&stream->path, obs_service_get_url(service));
+	ingest_url = obs_service_get_url(service);
+	if (strncmp(ingest_url, FTL_URL_PROTOCOL, strlen(FTL_URL_PROTOCOL)) ==
+	    0) {
+		dstr_copy(&stream->path, ingest_url + strlen(FTL_URL_PROTOCOL));
+	} else {
+		dstr_copy(&stream->path, ingest_url);
+	}
+
 	key = obs_service_get_key(service);
 
 	int target_bitrate = (int)obs_data_get_int(video_settings, "bitrate");