X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=decklink_capture.cpp;h=6dba068fca51108fcbfc3a55050efcc1223880ee;hb=d3e48df512d9476d3849227067792a3537bb094e;hp=33bb73daa219fa51c31d1ebdd23a3f72709858d5;hpb=471db5155f58c3bf7a98c446575cfa0c483da765;p=nageru

diff --git a/decklink_capture.cpp b/decklink_capture.cpp
index 33bb73d..6dba068 100644
--- a/decklink_capture.cpp
+++ b/decklink_capture.cpp
@@ -319,6 +319,14 @@ HRESULT STDMETHODCALLTYPE DeckLinkCapture::VideoInputFrameArrived(
 		char thread_name[16];
 		snprintf(thread_name, sizeof(thread_name), "DeckLink_C_%d", card_index);
 		pthread_setname_np(pthread_self(), thread_name);
+
+		sched_param param;
+		memset(&param, 0, sizeof(param));
+		param.sched_priority = 1;
+		if (sched_setscheduler(0, SCHED_RR, &param) == -1) {
+			printf("couldn't set realtime priority for DeckLink thread: %s\n", strerror(errno));
+		}
+
 		if (has_dequeue_callbacks) {
 			dequeue_init_callback();
 		}
@@ -340,8 +348,8 @@ HRESULT STDMETHODCALLTYPE DeckLinkCapture::VideoInputFrameArrived(
 	if (video_frame) {
 		video_format.has_signal = !(video_frame->GetFlags() & bmdFrameHasNoInputSource);
 
-		int width = video_frame->GetWidth();
-		int height = video_frame->GetHeight();
+		const int width = video_frame->GetWidth();
+		const int height = video_frame->GetHeight();
 		const int stride = video_frame->GetRowBytes();
 		const BMDPixelFormat format = video_frame->GetPixelFormat();
 		assert(format == pixel_format_to_bmd(current_pixel_format));
@@ -473,20 +481,24 @@ void DeckLinkCapture::stop_dequeue_thread()
 
 void DeckLinkCapture::set_video_mode(uint32_t video_mode_id)
 {
-	if (input->PauseStreams() != S_OK) {
-		fprintf(stderr, "PauseStreams failed\n");
-		exit(1);
-	}
-	if (input->FlushStreams() != S_OK) {
-		fprintf(stderr, "FlushStreams failed\n");
-		exit(1);
+	if (running) {
+		if (input->PauseStreams() != S_OK) {
+			fprintf(stderr, "PauseStreams failed\n");
+			exit(1);
+		}
+		if (input->FlushStreams() != S_OK) {
+			fprintf(stderr, "FlushStreams failed\n");
+			exit(1);
+		}
 	}
 
 	set_video_mode_no_restart(video_mode_id);
 
-	if (input->StartStreams() != S_OK) {
-		fprintf(stderr, "StartStreams failed\n");
-		exit(1);
+	if (running) {
+		if (input->StartStreams() != S_OK) {
+			fprintf(stderr, "StartStreams failed\n");
+			exit(1);
+		}
 	}
 }