Set various thread names

Helps identify which threads are which when debugging

libobs/media-io/audio-io.c

@@ -354,6 +354,8 @@ static void *audio_thread(void *param)
 	uint64_t prev_time = os_gettime_ns() - buffer_time;
 	uint64_t audio_time;
 
+	os_set_thread_name("audio-io: audio thread");
+
 	while (os_event_try(audio->stop_event) == EAGAIN) {
 		os_sleep_ms(AUDIO_WAIT_TIME);
 

libobs/media-io/video-io.c

@@ -160,6 +160,8 @@ static void *video_thread(void *param)
 {
 	struct video_output *video = param;
 
+	os_set_thread_name("video-io: video thread");
+
 	while (os_sem_wait(video->update_semaphore) == 0) {
 		if (video->stop)
 			break;

libobs/obs-video.c

@@ -537,6 +537,8 @@ void *obs_video_thread(void *param)
 	uint64_t cur_time = os_gettime_ns();
 	uint64_t interval = video_output_get_frame_time(obs->video.video);
 
+	os_set_thread_name("libobs: graphics thread");
+
 	while (!video_output_stopped(obs->video.video)) {
 		last_time = tick_sources(cur_time, last_time);
 

plugins/win-dshow/win-dshow.cpp

@@ -5,6 +5,7 @@
 #include <util/dstr.hpp>
 #include <util/platform.h>
 #include <util/windows/WinHandle.hpp>
+#include <util/threading.h>
 #include "libdshowcapture/dshowcapture.hpp"
 #include "ffmpeg-decode.h"
 #include "encode-dstr.hpp"
@@ -225,6 +226,8 @@ static DWORD CALLBACK DShowThread(LPVOID ptr)
 {
 	DShowInput *dshowInput = (DShowInput*)ptr;
 
+	os_set_thread_name("win-dshow: DShowThread");
+
 	CoInitialize(nullptr);
 	dshowInput->DShowLoop();
 	CoUninitialize();

plugins/win-wasapi/win-wasapi.cpp

@@ -6,6 +6,7 @@
 #include <util/windows/ComPtr.hpp>
 #include <util/windows/WinHandle.hpp>
 #include <util/windows/CoTaskMemPtr.hpp>
+#include <util/threading.h>
 
 using namespace std;
 
@@ -313,6 +314,8 @@ DWORD WINAPI WASAPISource::ReconnectThread(LPVOID param)
 {
 	WASAPISource *source = (WASAPISource*)param;
 
+	os_set_thread_name("win-wasapi: reconnect thread");
+
 	while (!WaitForSignal(source->stopSignal, RECONNECT_INTERVAL)) {
 		if (source->TryInitialize())
 			break;
@@ -396,6 +399,8 @@ DWORD WINAPI WASAPISource::CaptureThread(LPVOID param)
 		source->stopSignal
 	};
 
+	os_set_thread_name("win-wasapi: capture thread");
+
 	while (WaitForCaptureSignal(2, sigs, dur)) {
 		if (!source->ProcessCaptureData()) {
 			reconnect = true;