/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_EncodedVideoChunk_h
#define mozilla_dom_EncodedVideoChunk_h
#include "js/TypeDecls.h"
#include "mozilla/Attributes.h"
#include "mozilla/Buffer.h"
#include "mozilla/ErrorResult.h"
#include "mozilla/Maybe.h"
#include "mozilla/dom/BindingDeclarations.h"
#include "nsCycleCollectionParticipant.h"
#include "nsWrapperCache.h"
class nsIGlobalObject;
namespace mozilla {
class MediaAlignedByteBuffer;
class MediaRawData;
namespace dom {
class MaybeSharedArrayBufferViewOrMaybeSharedArrayBuffer;
class OwningMaybeSharedArrayBufferViewOrMaybeSharedArrayBuffer;
class StructuredCloneHolder;
enum class EncodedVideoChunkType : uint8_t;
struct EncodedVideoChunkInit;
}
// namespace dom
}
// namespace mozilla
namespace mozilla::dom {
class EncodedVideoChunkData {
public:
EncodedVideoChunkData(already_AddRefed<MediaAlignedByteBuffer> aBuffer,
const EncodedVideoChunkType& aType, int64_t aTimestamp,
Maybe<uint64_t>&& aDuration);
EncodedVideoChunkData(
const EncodedVideoChunkData& aData) =
default;
~EncodedVideoChunkData();
UniquePtr<EncodedVideoChunkData> Clone()
const;
already_AddRefed<MediaRawData> TakeData();
protected:
// mBuffer's byte length is guaranteed to be smaller than UINT32_MAX.
RefPtr<MediaAlignedByteBuffer> mBuffer;
EncodedVideoChunkType mType;
int64_t mTimestamp;
Maybe<uint64_t> mDuration;
};
class EncodedVideoChunk final :
public EncodedVideoChunkData,
public nsISupports,
public nsWrapperCache {
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(EncodedVideoChunk)
public:
EncodedVideoChunk(nsIGlobalObject* aParent,
already_AddRefed<MediaAlignedByteBuffer> aBuffer,
const EncodedVideoChunkType& aType, int64_t aTimestamp,
Maybe<uint64_t>&& aDuration);
EncodedVideoChunk(nsIGlobalObject* aParent,
const EncodedVideoChunkData& aData);
protected:
~EncodedVideoChunk() =
default;
public:
nsIGlobalObject* GetParentObject()
const;
JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
static already_AddRefed<EncodedVideoChunk> Constructor(
const GlobalObject& aGlobal,
const EncodedVideoChunkInit& aInit,
ErrorResult& aRv);
EncodedVideoChunkType Type()
const;
int64_t Timestamp()
const;
Nullable<uint64_t> GetDuration()
const;
uint32_t ByteLength()
const;
void CopyTo(
const MaybeSharedArrayBufferViewOrMaybeSharedArrayBuffer& aDestination,
ErrorResult& aRv);
// [Serializable] implementations: {Read, Write}StructuredClone
static JSObject* ReadStructuredClone(JSContext* aCx, nsIGlobalObject* aGlobal,
JSStructuredCloneReader* aReader,
const EncodedVideoChunkData& aData);
bool WriteStructuredClone(JSStructuredCloneWriter* aWriter,
StructuredCloneHolder* aHolder)
const;
private:
// EncodedVideoChunk can run on either main thread or worker thread.
void AssertIsOnOwningThread()
const {
NS_ASSERT_OWNINGTHREAD(EncodedVideoChunk);
}
nsCOMPtr<nsIGlobalObject> mParent;
};
}
// namespace mozilla::dom
#endif // mozilla_dom_EncodedVideoChunk_h
