120 lines
3.5 KiB
C++
120 lines
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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#include "jsapi/RTCEncodedFrameBase.h"
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#include "js/GCAPI.h"
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#include "mozilla/HoldDropJSObjects.h"
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#include "nsIGlobalObject.h"
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#include "mozilla/dom/ScriptSettings.h"
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#include "mozilla/dom/RTCRtpScriptTransformer.h"
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#include "js/ArrayBuffer.h"
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namespace mozilla::dom {
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NS_IMPL_CYCLE_COLLECTION_CLASS(RTCEncodedFrameBase)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(RTCEncodedFrameBase)
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using ::ImplCycleCollectionUnlink;
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tmp->DetachData();
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mOwner, mGlobal)
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mData)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(RTCEncodedFrameBase)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mOwner, mGlobal)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(RTCEncodedFrameBase)
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NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBERS(mData)
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NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER
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NS_IMPL_CYCLE_COLLECTION_TRACE_END
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NS_IMPL_CYCLE_COLLECTING_ADDREF(RTCEncodedFrameBase)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(RTCEncodedFrameBase)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(RTCEncodedFrameBase)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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RTCEncodedFrameBase::RTCEncodedFrameBase(
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nsIGlobalObject* aGlobal,
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std::unique_ptr<webrtc::TransformableFrameInterface> aFrame,
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uint64_t aCounter, RTCRtpScriptTransformer* aOwner)
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: mGlobal(aGlobal),
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mFrame(std::move(aFrame)),
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mCounter(aCounter),
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mTimestamp(mFrame->GetTimestamp()),
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mOwner(aOwner) {
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AutoJSAPI jsapi;
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if (NS_WARN_IF(!jsapi.Init(mGlobal))) {
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return;
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}
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mozilla::HoldJSObjects(this);
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// Avoid a copy
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mData = JS::NewArrayBufferWithUserOwnedContents(
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jsapi.cx(), mFrame->GetData().size(), (void*)(mFrame->GetData().data()));
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}
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RTCEncodedFrameBase::~RTCEncodedFrameBase() {
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DetachData();
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mData = nullptr;
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mozilla::DropJSObjects(this);
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}
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void RTCEncodedFrameBase::DetachData() {
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// We might have handled this in unlink already
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if (mGlobal && mData) {
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AutoJSAPI jsapi;
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if (NS_WARN_IF(!jsapi.Init(mGlobal))) {
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return;
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}
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JS::Rooted<JSObject*> rootedData(jsapi.cx(), mData);
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if (rootedData) {
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JS::DetachArrayBuffer(jsapi.cx(), rootedData);
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}
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}
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}
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nsIGlobalObject* RTCEncodedFrameBase::GetParentObject() const {
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return mGlobal;
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}
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unsigned long RTCEncodedFrameBase::Timestamp() const { return mTimestamp; }
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void RTCEncodedFrameBase::SetData(const ArrayBuffer& aData) {
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DetachData();
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mData.set(aData.Obj());
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if (mFrame) {
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aData.ProcessData([&](const Span<uint8_t>& aData, JS::AutoCheckCannotGC&&) {
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mFrame->SetData(
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rtc::ArrayView<const uint8_t>(aData.Elements(), aData.Length()));
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});
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}
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}
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void RTCEncodedFrameBase::GetData(JSContext* aCx, JS::Rooted<JSObject*>* aObj) {
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aObj->set(mData);
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}
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uint64_t RTCEncodedFrameBase::GetCounter() const { return mCounter; }
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std::unique_ptr<webrtc::TransformableFrameInterface>
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RTCEncodedFrameBase::TakeFrame() {
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DetachData();
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return std::move(mFrame);
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}
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size_t RTCEncodedFrameBase::Size() const {
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if (!mFrame) {
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return 0;
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}
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return mFrame->GetData().size();
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}
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} // namespace mozilla::dom
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