FS-8053 #resolve [When WebRTC's SDP contains a=sendonly for video, the client…

FS-8053 #resolve [When WebRTC's SDP contains a=sendonly for video, the client will still receive the video stream]

src/mod/applications/mod_conference/conference_video.c

@@ -1264,6 +1264,10 @@ void conference_video_write_canvas_image_to_codec_group(conference_obj_t *confer
 					continue;
 				}
 
+				if (imember->video_flow == SWITCH_MEDIA_FLOW_RECVONLY) {
+					continue;
+				}
+
 				if (!imember->session || !switch_channel_test_flag(imember->channel, CF_VIDEO) ||
 					switch_core_session_read_lock(imember->session) != SWITCH_STATUS_SUCCESS) {
 					continue;
@@ -2588,6 +2592,10 @@ void *SWITCH_THREAD_FUNC conference_video_muxing_thread_run(switch_thread_t *thr
 					continue;
 				}
 
+				if (imember->video_flow == SWITCH_MEDIA_FLOW_RECVONLY) {
+					continue;
+				}
+
 				if (need_refresh) {
 					switch_core_session_request_video_refresh(imember->session);
 				}
@@ -2922,6 +2930,10 @@ void *SWITCH_THREAD_FUNC conference_video_super_muxing_thread_run(switch_thread_
 				continue;
 			}
 
+			if (imember->video_flow == SWITCH_MEDIA_FLOW_RECVONLY) {
+				continue;
+			}
+
 			if (!imember->session || !switch_channel_test_flag(imember->channel, CF_VIDEO) ||
 				switch_core_session_read_lock(imember->session) != SWITCH_STATUS_SUCCESS) {
 				continue;

src/switch_core_media.c

@@ -10440,6 +10440,11 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_write_encoded_video_frame(sw
 	switch_io_event_hook_video_write_frame_t *ptr;
 	switch_status_t status = SWITCH_STATUS_FALSE;
 
+	if (switch_core_session_media_flow(session, SWITCH_MEDIA_TYPE_VIDEO) == SWITCH_MEDIA_FLOW_RECVONLY) {
+		switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING, "Writing video to RECVONLY session\n");
+		return SWITCH_STATUS_SUCCESS;
+	}
+
 	if (session->endpoint_interface->io_routines->write_video_frame) {
 		if ((status = session->endpoint_interface->io_routines->write_video_frame(session, frame, flags, stream_id)) == SWITCH_STATUS_SUCCESS) {
 			for (ptr = session->event_hooks.video_write_frame; ptr; ptr = ptr->next) {
@@ -10506,6 +10511,11 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_write_video_frame(switch_cor
 		return SWITCH_STATUS_FALSE;
 	}
 
+	if (switch_core_session_media_flow(session, SWITCH_MEDIA_TYPE_VIDEO) == SWITCH_MEDIA_FLOW_RECVONLY) {
+		switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING, "Writing video to RECVONLY session\n");
+		return SWITCH_STATUS_SUCCESS;
+	}
+
 	if (switch_channel_test_flag(session->channel, CF_VIDEO_PAUSE_WRITE)) {
 		return SWITCH_STATUS_SUCCESS;
 	}