视频上有音频

Source/Cut5/Interface/VideoThumbnailThread.cpp

@@ -0,0 +1,49 @@
+#include "VideoThumbnailThread.h"
+
+#include "Cut5/Utils/FFMPEGUtils.h"
+
+FVideoThumbnailThread::FVideoThumbnailThread(const FString& MoviePath, TFunction<void(FString)> OnFinished)
+{
+	this->MoviePath = MoviePath;
+	this->OnFinished = OnFinished;
+}
+
+uint32 FVideoThumbnailThread::Run()
+{
+	if (MoviePath.IsEmpty())
+	{
+		Stop();
+		return 0;
+	}
+	FTimelinePropertyData Info;
+	FFFMPEGUtils::LoadContextPure(MoviePath, &Info);
+
+
+	
+	while (true)
+	{
+		AVPacket* Packet = av_packet_alloc();
+		if (av_read_frame(Info.Context, Packet) < 0)
+		{
+			av_packet_free(&Packet);
+			break;
+		}
+
+		if (avcodec_send_packet(Info.VideoCodecContext, Packet) < 0)
+		{
+			
+		}
+		AVFrame* Frame = av_frame_alloc();
+		if (avcodec_receive_frame(Info.VideoCodecContext, Frame) >= 0)
+		{
+			
+			int32 CurrentTime = av_rescale(Frame->best_effort_timestamp, Info.VideoCodecContext->time_base.den, AV_TIME_BASE);
+			UE_LOG(LogTemp, Warning, TEXT("Frame->best_effort_timestamp: %d"), CurrentTime);
+		};
+
+		
+	}
+
+	return 0;
+	
+}

Source/Cut5/Interface/VideoThumbnailThread.h

@@ -0,0 +1,17 @@
+#pragma once
+
+class FVideoThumbnailThread : public FRunnable
+{
+public:
+	
+	FVideoThumbnailThread(const FString& MoviePath, TFunction<void(FString)> OnFinished);
+	
+	virtual bool Init() override { return true; }
+	virtual uint32 Run() override;
+	virtual void Stop() override {};
+	virtual void Exit() override {};
+
+	FString MoviePath;
+	TFunction<void(FString)> OnFinished;
+	
+};

Source/Cut5/Utils/Utils.cpp

@@ -241,6 +241,16 @@ FGuid FUtils::GetVideoThreadGuid(const FGuid& ClipGuid)
 	return NewGuid;
 }
 
+FGuid FUtils::GetVideoThumbnailThreadGuid(const FGuid& ClipGuid)
+{
+	FGuid NewGuid = ClipGuid;
+	NewGuid.A += 80;
+	NewGuid.B += 80;
+	NewGuid.C += 80;
+	NewGuid.D += 80;
+	return NewGuid;
+}
+
 bool FUtils::DetectDragTypeCanDrop(const FClipData& DraggingType, const ETrackType& DropTrackType)
 {
 	if (DropTrackType == ETrackType::LightArrayTrack || DropTrackType == ETrackType::LightBarTrack || DropTrackType == ETrackType::SpotLightTrack || DropTrackType == ETrackType::AtomSphereLightTrack)

Source/Cut5/Utils/Utils.h

@@ -23,6 +23,7 @@ public:
 
 	static FGuid GetSoundThreadGuid(const FGuid& ClipGuid);
 	static FGuid GetVideoThreadGuid(const FGuid& ClipGuid);
+	static FGuid GetVideoThumbnailThreadGuid(const FGuid& ClipGuid);
 
 	static bool DetectDragTypeCanDrop(const FClipData& DraggingType, const ETrackType& DropTrackType);
 	/**

Source/Cut5/Widgets/SCutTimeline.cpp

@@ -762,6 +762,9 @@ void SCutTimeline::SaveTimeline(const FString& SavedPath, FTimelineInfo Info)
 
 bool SCutTimeline::LoadTimeline(const FString& LoadPath, FTimelineInfo& Info)
 {
+
+	MainWidgetInterface->GetSelf()->CloseAllThreads();
+	
 	TSharedPtr<FClipProxy> ClipProxy = FClipProxy::GetProxy();
 	ClipProxy->Reset();
 	static_cast<SCutMainWindow*>(MainWidgetInterface)->UpdateProperties(nullptr);

Source/Cut5/Widgets/STimelineClip.cpp

@@ -16,6 +16,7 @@
 #include "Cut5/WidgetInterface.h"
 #include "Cut5/Interface/SoundInterface.h"
 #include "Cut5/Interface/VideoInterface.h"
+#include "Cut5/Interface/VideoThumbnailThread.h"
 #include "Cut5/Utils/FFMPEGUtils.h"
 #include "Cut5/Utils/Utils.h"
 #include "DragDropOperator/DragDropOperator.h"
@@ -266,6 +267,15 @@ void STimelineClip::Construct(const FArguments& InArgs)
 			FRunnableThread::Create(Thread, TEXT("VideoThread")); 
 			MainWidgetInterface->GetSelf()->AddThread(FUtils::GetVideoThreadGuid(ClipData->ClipGuid), Thread);
 		}
+		if (!MainWidgetInterface->GetSelf()->GetThread(FUtils::GetVideoThumbnailThreadGuid(ClipData->ClipGuid)))
+		{
+			FVideoThumbnailThread* ThumbnailThread = new FVideoThumbnailThread(ClipData->MoviePath, [this](const FString& PicPath)
+			{
+						
+			});
+			FRunnableThread::Create(ThumbnailThread, TEXT("VideoThumbnailThread"));
+			MainWidgetInterface->GetSelf()->AddThread(FUtils::GetVideoThumbnailThreadGuid(ClipData->ClipGuid), ThumbnailThread);
+		}
 
 
 	}
@@ -644,7 +654,7 @@ int32 STimelineClip::OnPaint(const FPaintArgs& Args, const FGeometry& AllottedGe
 	}
 	
 
-	if (ClipData->ClipType == ETrackType::AudioTrack || ClipData->ClipType == ETrackType::AudioTrackR)
+	if (ClipData->ClipType == ETrackType::AudioTrack || ClipData->ClipType == ETrackType::AudioTrackR || ClipData->ClipType == ETrackType::VideoTrack)
 	{
 		const FSlateBrush Brush;