167 lines
2.9 KiB
C++
167 lines
2.9 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "MediaPlaylist.h"
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#include "MediaAssetsPrivate.h"
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#include "Misc/Paths.h"
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#include "UObject/Package.h"
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#include "UObject/UObjectGlobals.h"
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#include "FileMediaSource.h"
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#include "StreamMediaSource.h"
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#include UE_INLINE_GENERATED_CPP_BY_NAME(MediaPlaylist)
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/* UMediaPlaylist interface
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*****************************************************************************/
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bool UMediaPlaylist::Add(UMediaSource* MediaSource)
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{
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if (MediaSource == nullptr)
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{
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return false;
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}
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Items.Add(MediaSource);
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return true;
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}
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bool UMediaPlaylist::AddFile(const FString& FilePath)
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{
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if (FilePath.IsEmpty())
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{
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return false;
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}
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const FString FileName = FPaths::GetBaseFilename(FilePath);
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const FName ObjectName = MakeUniqueObjectName(GetTransientPackage(), UFileMediaSource::StaticClass(), FName(*FileName));
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auto MediaSource = NewObject<UFileMediaSource>(GetTransientPackage(), ObjectName, RF_Transactional | RF_Transient);
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MediaSource->SetFilePath(FilePath);
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return Add(MediaSource);
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}
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bool UMediaPlaylist::AddUrl(const FString& Url)
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{
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if (Url.IsEmpty())
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{
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return false;
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}
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auto MediaSource = NewObject<UStreamMediaSource>(GetTransientPackage(), NAME_None, RF_Transactional | RF_Transient);
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MediaSource->StreamUrl = Url;
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if (!MediaSource->Validate())
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{
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UE_LOG(LogMediaAssets, Error, TEXT("Failed to validate URL %s"), *Url);
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return false;
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}
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return Add(MediaSource);
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}
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UMediaSource* UMediaPlaylist::Get(int32 Index)
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{
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if (!Items.IsValidIndex(Index))
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{
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return nullptr;
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}
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return Items[Index];
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}
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UMediaSource* UMediaPlaylist::GetNext(int32& InOutIndex)
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{
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if (Items.Num() > 0)
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{
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InOutIndex = FMath::Clamp(InOutIndex, (int32)INDEX_NONE, Items.Num() - 1) + 1;
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InOutIndex %= Items.Num();
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return Items[InOutIndex];
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}
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InOutIndex = INDEX_NONE;
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return nullptr;
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}
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UMediaSource* UMediaPlaylist::GetPrevious(int32& InOutIndex)
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{
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if (Items.Num() > 0)
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{
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InOutIndex = FMath::Clamp(InOutIndex, 0, Items.Num()) - 1;
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InOutIndex += Items.Num();
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InOutIndex %= Items.Num();
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return Items[InOutIndex];
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}
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InOutIndex = INDEX_NONE;
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return nullptr;
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}
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UMediaSource* UMediaPlaylist::GetRandom(int32& OutIndex)
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{
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if (Items.Num() == 0)
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{
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OutIndex = INDEX_NONE;
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return nullptr;
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}
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OutIndex = FMath::RandHelper(Items.Num() - 1);
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return Items[OutIndex];
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}
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void UMediaPlaylist::Insert(UMediaSource* MediaSource, int32 Index)
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{
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Index = FMath::Clamp(Index, 0, Items.Num());
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Items.Insert(MediaSource, Index);
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}
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bool UMediaPlaylist::Remove(UMediaSource* MediaSource)
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{
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return (Items.Remove(MediaSource) > 0);
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}
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bool UMediaPlaylist::RemoveAt(int32 Index)
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{
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if (!Items.IsValidIndex(Index))
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{
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return false;
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}
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Items.RemoveAt(Index);
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return true;
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}
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bool UMediaPlaylist::Replace(int32 Index, UMediaSource* Replacement)
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{
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if (!Items.IsValidIndex(Index))
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{
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return false;
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}
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Items[Index] = Replacement;
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return true;
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}
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