/* 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 https://mozilla.org/MPL/2.0/. */
#ifndef MOZILLA_DOM_MEDIA_WEBRTC_JSAPI_RTCENCODEDVIDEOFRAME_H_
#define MOZILLA_DOM_MEDIA_WEBRTC_JSAPI_RTCENCODEDVIDEOFRAME_H_
#include "mozilla/dom/RTCEncodedFrameBase.h"
#include "mozilla/dom/RTCEncodedVideoFrameBinding.h"
#include "nsIGlobalObject.h"
namespace mozilla::dom {
class RTCRtpScriptTransformer;
class RTCStatsTimestampMaker;
class StructuredCloneHolder;
struct RTCEncodedVideoFrameOptions;
struct RTCEncodedVideoFrameData : RTCEncodedFrameState {
RTCEncodedVideoFrameType mType;
RTCEncodedVideoFrameMetadata mMetadata;
Maybe<nsCString> mRid;
[[nodiscard]] RTCEncodedVideoFrameData Clone()
const;
};
// Wraps a libwebrtc frame, allowing the frame buffer to be modified, and
// providing read-only access to various metadata. After the libwebrtc frame is
// extracted (with RTCEncodedFrameBase::TakeFrame), the frame buffer is
// detached, but the metadata remains accessible.
class RTCEncodedVideoFrame final : public RTCEncodedVideoFrameData,
public RTCEncodedFrameBase {
public:
explicit RTCEncodedVideoFrame(
nsIGlobalObject* aGlobal,
std::unique_ptr<webrtc::TransformableFrameInterface> aFrame,
uint64_t aCounter, RTCRtpScriptTransformer* aOwner,
const Maybe<RTCStatsTimestampMaker>& aTimestampMaker);
explicit RTCEncodedVideoFrame(nsIGlobalObject* aGlobal,
RTCEncodedVideoFrameData&& aData);
// forbid copy/move to keep mState member in base valid
RTCEncodedVideoFrame(
const RTCEncodedVideoFrame&) =
delete;
RTCEncodedVideoFrame&
operator=(
const RTCEncodedVideoFrame&) =
delete;
RTCEncodedVideoFrame(RTCEncodedVideoFrame&&) =
delete;
RTCEncodedVideoFrame&
operator=(RTCEncodedVideoFrame&&) =
delete;
// webidl (timestamp and data accessors live in base class)
JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
static already_AddRefed<RTCEncodedVideoFrame> Constructor(
const GlobalObject& aGlobal,
const RTCEncodedVideoFrame& aOriginalFrame,
const RTCEncodedVideoFrameOptions& aOptions, ErrorResult& aRv);
RTCEncodedVideoFrameType Type()
const;
void InitMetadata();
void GetMetadata(RTCEncodedVideoFrameMetadata& aMetadata);
bool CheckOwner(RTCRtpScriptTransformer* aOwner)
const override;
bool IsVideo()
const override {
return true; }
// Not in webidl right now. Might change.
// https://github.com/w3c/webrtc-encoded-transform/issues/147
Maybe<nsCString> Rid()
const;
static JSObject* ReadStructuredClone(JSContext* aCx, nsIGlobalObject* aGlobal,
JSStructuredCloneReader* aReader,
RTCEncodedVideoFrameData& aData);
bool WriteStructuredClone(JSStructuredCloneWriter* aWriter,
StructuredCloneHolder* aHolder)
const;
private:
virtual ~RTCEncodedVideoFrame() =
default;
// RTCEncodedVideoFrame can run on either main thread or worker thread.
void AssertIsOnOwningThread()
const {
NS_ASSERT_OWNINGTHREAD(RTCEncodedVideoFrame);
}
};
}
// namespace mozilla::dom
#endif // MOZILLA_DOM_MEDIA_WEBRTC_JSAPI_RTCENCODEDVIDEOFRAME_H_