miracle-wfdctl: set XAUTHORITY and DISPLAY before create gstreamer

pipeline, and now we can pass device name to pulseaudio

res/miracle-wfdctl-demo

@@ -204,6 +204,13 @@ invoke org.freedesktop.miracle.wfd \
     /org/freedesktop/miracle/wfd/sink/$peer_id \
     org.freedesktop.miracle.wfd.Sink \
     Peer /org/freedesktop/miracle/wifi/peer/$peer_id \
-    StartSession sqqqq 'x://:0.0' 0 0 1920 1080
+    StartSession ssqqqqs \
+        "$XAUTHORITY" \
+        'x://:0.0' \
+        0 \
+        0 \
+        1920 \
+        1080 \
+        'alsa_output.pci-0000_00_1b.0.analog-stereo.monitor'
 
 wait

src/ctl/ctl.h

@@ -172,11 +172,13 @@ enum wfd_session_state
 
 int wfd_out_session_new(struct wfd_session **out,
 				struct wfd_sink *sink,
+				const char *authority,
 				const char *display,
 				uint16_t x,
 				uint16_t y,
 				uint16_t width,
-				uint16_t height);
+				uint16_t height,
+				const char *audio_dev);
 int wfd_session_start(struct wfd_session *s, uint64_t id);
 enum wfd_session_dir wfd_session_get_dir(struct wfd_session *s);
 uint64_t wfd_session_get_id(struct wfd_session *s);
@@ -218,11 +220,13 @@ const char * wfd_sink_get_label(struct wfd_sink *sink);
 const union wfd_sube * wfd_sink_get_dev_info(struct wfd_sink *sink);
 int wfd_sink_start_session(struct wfd_sink *sink,
 				struct wfd_session **out,
+				const char *authority,
 				const char *display,
 				uint16_t x,
 				uint16_t y,
 				uint16_t width,
-				uint16_t height);
+				uint16_t height,
+				const char *audio_dev);
 void wfd_sink_handle_session_ended(struct wfd_sink *sink);
 bool wfd_sink_is_session_started(struct wfd_sink *sink);
 static inline void wfd_sink_freep(struct wfd_sink **s)

src/ctl/wfd-dbus.c

@@ -372,19 +372,31 @@ static int wfd_dbus_sink_start_session(sd_bus_message *m,
 	struct wfd_sink *sink = userdata;
 	_wfd_session_free_ struct wfd_session *session = NULL;
 	_shl_free_ char *path = NULL;
-	char *display = NULL;
+	const char *authority;
+	const char *display;
 	uint16_t x, y, width, height;
+	const char *audio_dev;
 	int r;
 
-	r = sd_bus_message_read(m, "sqqqq", &display, &x, &y, &width, &height);
+	r = sd_bus_message_read(m,
+					"ssqqqqs",
+					&authority,
+					&display,
+					&x,
+					&y,
+					&width,
+					&height,
+					&audio_dev);
 	if(0 > r) {
 		return r;
 	}
 
 	r = wfd_sink_start_session(sink,
 					&session,
+					authority,
 					display,
-					x, y, width, height);
+					x, y, width, height,
+					audio_dev);
 	if(0 > r) {
 		return r;
 	}
@@ -644,7 +656,7 @@ static const sd_bus_vtable wfd_dbus_vtable[] = {
 
 static const sd_bus_vtable wfd_dbus_sink_vtable[] = {
 	SD_BUS_VTABLE_START(0),
-	SD_BUS_METHOD("StartSession", "sqqqq", "o", wfd_dbus_sink_start_session, SD_BUS_VTABLE_UNPRIVILEGED),
+	SD_BUS_METHOD("StartSession", "ssqqqqs", "o", wfd_dbus_sink_start_session, SD_BUS_VTABLE_UNPRIVILEGED),
 	/*SD_BUS_PROPERTY("AudioFormats", "a{sv}", wfd_dbus_sink_get_audio_formats, 0, SD_BUS_VTABLE_PROPERTY_CONST),*/
 	/*SD_BUS_PROPERTY("VideoFormats", "a{sv}", wfd_dbus_sink_get_video_formats, 0, SD_BUS_VTABLE_PROPERTY_CONST),*/
 	/*SD_BUS_PROPERTY("HasAudio", "b", wfd_dbus_sink_has_audio, 0, SD_BUS_VTABLE_PROPERTY_CONST),*/

src/ctl/wfd-out-session.c

@@ -46,6 +46,7 @@ struct wfd_out_session
 	sd_event_source *gst_term_source;
 
 	enum wfd_display_type display_type;
+	char *authority;
 	char *display_name;
 	uint16_t x;
 	uint16_t y;
@@ -53,6 +54,7 @@ struct wfd_out_session
 	uint16_t height;
 	enum wfd_resolution_standard std;
 	uint32_t mask;
+	char *audio_dev;
 
 	GstElement *pipeline;
 };
@@ -61,16 +63,18 @@ static const struct rtsp_dispatch_entry out_session_rtsp_disp_tbl[];
 
 int wfd_out_session_new(struct wfd_session **out,
 				struct wfd_sink *sink,
+				const char *authority,
 				const char *display,
 				uint16_t x,
 				uint16_t y,
 				uint16_t width,
-				uint16_t height)
+				uint16_t height,
+				const char *audio_dev)
 {
 	_shl_free_ char *display_schema = NULL;
 	_shl_free_ char *display_name = NULL;
+	_wfd_session_free_ struct wfd_session *s;
 	enum wfd_display_type display_type;
-	struct wfd_out_session *s;
 	enum wfd_resolution_standard std;
 	uint32_t mask;
 	int r;
@@ -97,27 +101,41 @@ int wfd_out_session_new(struct wfd_session **out,
 	if(0 > r) {
 		return -EINVAL;
 	}
-	
+
 	s = calloc(1, sizeof(struct wfd_out_session));
 	if(!s) {
 		return -ENOMEM;
 	}
 
+	wfd_out_session(s)->authority = strdup(authority);
+	if(!wfd_out_session(s)->authority) {
+		free(s);
+		return -ENOMEM;
+	}
+
+	wfd_out_session(s)->audio_dev = strdup(audio_dev);
+	if(!wfd_out_session(s)->audio_dev) {
+		free(s);
+		return -ENOMEM;
+	}
+
 	wfd_session(s)->dir = WFD_SESSION_DIR_OUT;
 	wfd_session(s)->rtsp_disp_tbl = out_session_rtsp_disp_tbl;
-	s->fd = -1;
-	s->sink = sink;
-	s->display_type = display_type;
-	s->display_name = display_name;
-	display_name = NULL;
-	s->x = x;
-	s->y = y;
-	s->width = width;
-	s->height = height;
-	s->mask = mask;
-	s->std = std;
+	wfd_out_session(s)->fd = -1;
+	wfd_out_session(s)->sink = sink;
+	wfd_out_session(s)->display_type = display_type;
+	wfd_out_session(s)->display_name = display_name;
+	wfd_out_session(s)->x = x;
+	wfd_out_session(s)->y = y;
+	wfd_out_session(s)->width = width;
+	wfd_out_session(s)->height = height;
+	wfd_out_session(s)->mask = mask;
+	wfd_out_session(s)->std = std;
 
 	*out = wfd_session(s);
+	s = NULL;
+
+	display_name = NULL;
 
 	return 0;
 }
@@ -267,11 +285,21 @@ void wfd_out_session_destroy(struct wfd_session *s)
 		os->gst_launch_source = NULL;
 	}
 
+	if(os->audio_dev) {
+		free(os->audio_dev);
+		os->audio_dev = NULL;
+	}
+
 	if(os->display_name) {
 		free(os->display_name);
 		os->display_name = NULL;
 	}
 
+	if(os->authority) {
+		free(os->authority);
+		os->authority = NULL;
+	}
+
 	if(os->pipeline) {
 		gst_element_set_state(os->pipeline, GST_STATE_NULL);
 		g_object_unref(os->pipeline);
@@ -497,14 +525,23 @@ inline static char * uint16_to_str(uint16_t i, char *buf, size_t len)
 	return buf;
 }
 
+inline static char * quote_str(const char *s, char *d, size_t len)
+{
+	snprintf(d, len, "\"%s\"", s);
+
+	return d;
+}
+
 static int wfd_out_session_create_pipeline(struct wfd_session *s)
 {
 	char x[16], y[16], width[16], height[16];
 	char rrtp_port[16], rrtcp_port[16], lrtcp_port[16];
+	char audio_dev[256];
 	struct wfd_out_session *os = wfd_out_session(s);
 	GstElement *pipeline;
 	GError *error = NULL;
-	GstStateChangeReturn r;
+	const char **tmp;
+	int r;
 	const char *pipeline_desc[96] = {
 		"ximagesrc",
 			"use-damage=false",
@@ -541,7 +578,7 @@ static int wfd_out_session_create_pipeline(struct wfd_session *s)
 		"pulsesrc",
 			"do-timestamp=true",
 			"client-name=miraclecast",
-			"device=\"alsa_output.pci-0000_00_1b.0.analog-stereo.monitor\"",
+			"device=", quote_str(os->audio_dev, audio_dev, sizeof(audio_dev)),
 		"!", "audioconvert",
 		"!", "audio/x-raw,",
 			"rate=48000,",
@@ -558,7 +595,6 @@ static int wfd_out_session_create_pipeline(struct wfd_session *s)
 		"!", "session.recv_rtcp_sink_0",
 		NULL
 	};
-	const char **tmp;
 
 	if(s->stream.rtcp_port) {
 		tmp = pipeline_desc;
@@ -574,7 +610,24 @@ static int wfd_out_session_create_pipeline(struct wfd_session *s)
 		*tmp ++ = "async=false";
 	}
 
-	snprintf(rrtcp_port, sizeof(rrtcp_port), "%hu", s->stream.rtcp_port);
+	r = snprintf(rrtcp_port, sizeof(rrtcp_port), "%hu", s->stream.rtcp_port);
+	if(0 > r) {
+		return r;
+	}
+
+	/* bad pratice, but since we are in the same process,
+	   I think this is the only way to do it */
+	if(WFD_DISPLAY_TYPE_X == os->display_type) {
+		r = setenv("XAUTHORITY", os->authority, 1);
+		if(0 > r) {
+			return r;
+		}
+
+		r = setenv("DISPLAY", os->display_name, 1);
+		if(0 > r) {
+			return r;
+		}
+	}
 
 	pipeline = gst_parse_launchv(pipeline_desc, &error);
 	if(!pipeline) {

src/ctl/wfd-session.c

@@ -188,7 +188,7 @@ int wfd_session_teardown(struct wfd_session *s)
 		return session_vtbl[s->dir].teardown(s);;
 	}
 
-	wfd_session_free(s);
+	//wfd_session_free(s);
 
 	return 0;
 }
@@ -219,6 +219,7 @@ void wfd_session_free(struct wfd_session *s)
 	}
 
 	if(s->rtsp) {
+		rtsp_detach_event(s->rtsp);
 		rtsp_unref(s->rtsp);
 		s->rtsp = NULL;
 	}

src/ctl/wfd-sink.c

@@ -119,11 +119,13 @@ struct ctl_peer * wfd_sink_get_peer(struct wfd_sink *sink)
 
 int wfd_sink_start_session(struct wfd_sink *sink,
 				struct wfd_session **out,
+				const char *authority,
 				const char *display,
 				uint16_t x,
 				uint16_t y,
 				uint16_t width,
-				uint16_t height)
+				uint16_t height,
+				const char *audio_dev)
 {
 	int r;
 	_wfd_session_free_ struct wfd_session *s = NULL;
@@ -135,7 +137,15 @@ int wfd_sink_start_session(struct wfd_sink *sink,
 		return -EALREADY;
 	}
 
-	r = wfd_out_session_new(&s, sink, display, x, y, width, height);
+	r = wfd_out_session_new(&s,
+					sink,
+					authority,
+					display,
+					x,
+					y,
+					width,
+					height,
+					audio_dev);
 	if(0 > r) {
 		return r;
 	}

src/ctl/wfdctl.c

@@ -363,23 +363,16 @@ void ctl_fn_peer_new(struct ctl_peer *p)
 void ctl_fn_peer_free(struct ctl_peer *p)
 {
 	struct wfd_sink *s;
-	_shl_free_ char *label = NULL;
 	int r;
 
-	log_info("peer %s down", p->label);
-
 	r = ctl_wfd_remove_sink_by_label(wfd, p->label, &s);
-	if(!r) {
-		return;
+	if(r) {
+		wfd_fn_sink_free(s);
+		log_info("sink %s removed", s->label);
+		wfd_sink_free(s);
 	}
 
-	label = strdup(s->label);
-
-	wfd_fn_sink_free(s);
-
-	wfd_sink_free(s);
-
-	log_info("sink %s removed", label);
+	log_info("peer %s down", p->label);
 }
 
 void ctl_fn_peer_provision_discovery(struct ctl_peer *p,