summaryrefslogtreecommitdiffstats
path: root/dom/media/webcodecs/EncoderTemplate.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'dom/media/webcodecs/EncoderTemplate.cpp')
-rw-r--r--dom/media/webcodecs/EncoderTemplate.cpp1228
1 files changed, 1228 insertions, 0 deletions
diff --git a/dom/media/webcodecs/EncoderTemplate.cpp b/dom/media/webcodecs/EncoderTemplate.cpp
new file mode 100644
index 0000000000..35c8feb3f8
--- /dev/null
+++ b/dom/media/webcodecs/EncoderTemplate.cpp
@@ -0,0 +1,1228 @@
+/* -*- 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/. */
+
+#include "EncoderTemplate.h"
+
+#include "EncoderTypes.h"
+#include "mozilla/ScopeExit.h"
+#include "mozilla/Try.h"
+#include "mozilla/Unused.h"
+#include "mozilla/dom/DOMException.h"
+#include "mozilla/dom/Event.h"
+#include "mozilla/dom/Promise.h"
+#include "mozilla/dom/VideoFrame.h"
+#include "mozilla/dom/WorkerCommon.h"
+#include "nsGkAtoms.h"
+#include "nsString.h"
+#include "nsThreadUtils.h"
+
+extern mozilla::LazyLogModule gWebCodecsLog;
+
+namespace mozilla::dom {
+
+#ifdef LOG_INTERNAL
+# undef LOG_INTERNAL
+#endif // LOG_INTERNAL
+#define LOG_INTERNAL(level, msg, ...) \
+ MOZ_LOG(gWebCodecsLog, LogLevel::level, (msg, ##__VA_ARGS__))
+
+#ifdef LOG
+# undef LOG
+#endif // LOG
+#define LOG(msg, ...) LOG_INTERNAL(Debug, msg, ##__VA_ARGS__)
+
+#ifdef LOGW
+# undef LOGW
+#endif // LOGW
+#define LOGW(msg, ...) LOG_INTERNAL(Warning, msg, ##__VA_ARGS__)
+
+#ifdef LOGE
+# undef LOGE
+#endif // LOGE
+#define LOGE(msg, ...) LOG_INTERNAL(Error, msg, ##__VA_ARGS__)
+
+#ifdef LOGV
+# undef LOGV
+#endif // LOGV
+#define LOGV(msg, ...) LOG_INTERNAL(Verbose, msg, ##__VA_ARGS__)
+
+/*
+ * Below are ControlMessage classes implementations
+ */
+
+template <typename EncoderType>
+EncoderTemplate<EncoderType>::ControlMessage::ControlMessage(
+ WebCodecsId aConfigureId)
+ : mConfigureId(aConfigureId), mMessageId(sNextId++) {}
+
+template <typename EncoderType>
+EncoderTemplate<EncoderType>::ConfigureMessage::ConfigureMessage(
+ WebCodecsId aConfigureId, const RefPtr<ConfigTypeInternal>& aConfig)
+ : ControlMessage(aConfigureId), mConfig(aConfig) {}
+
+template <typename EncoderType>
+EncoderTemplate<EncoderType>::EncodeMessage::EncodeMessage(
+ WebCodecsId aConfigureId, RefPtr<InputTypeInternal>&& aData,
+ Maybe<VideoEncoderEncodeOptions>&& aOptions)
+ : ControlMessage(aConfigureId), mData(aData) {}
+
+template <typename EncoderType>
+EncoderTemplate<EncoderType>::FlushMessage::FlushMessage(
+ WebCodecsId aConfigureId, Promise* aPromise)
+ : ControlMessage(aConfigureId), mPromise(aPromise) {}
+
+template <typename EncoderType>
+void EncoderTemplate<EncoderType>::FlushMessage::RejectPromiseIfAny(
+ const nsresult& aReason) {
+ if (mPromise) {
+ mPromise->MaybeReject(aReason);
+ }
+}
+
+/*
+ * Below are EncoderTemplate implementation
+ */
+
+template <typename EncoderType>
+EncoderTemplate<EncoderType>::EncoderTemplate(
+ nsIGlobalObject* aGlobalObject,
+ RefPtr<WebCodecsErrorCallback>&& aErrorCallback,
+ RefPtr<OutputCallbackType>&& aOutputCallback)
+ : DOMEventTargetHelper(aGlobalObject),
+ mErrorCallback(std::move(aErrorCallback)),
+ mOutputCallback(std::move(aOutputCallback)),
+ mState(CodecState::Unconfigured),
+ mMessageQueueBlocked(false),
+ mEncodeQueueSize(0),
+ mDequeueEventScheduled(false),
+ mLatestConfigureId(0),
+ mEncodeCounter(0),
+ mFlushCounter(0) {}
+
+template <typename EncoderType>
+void EncoderTemplate<EncoderType>::Configure(const ConfigType& aConfig,
+ ErrorResult& aRv) {
+ AssertIsOnOwningThread();
+
+ LOG("%s::Configure %p codec %s", EncoderType::Name.get(), this,
+ NS_ConvertUTF16toUTF8(aConfig.mCodec).get());
+
+ nsCString errorMessage;
+ if (!EncoderType::Validate(aConfig, errorMessage)) {
+ LOG("Configure: Validate error: %s", errorMessage.get());
+ aRv.ThrowTypeError(errorMessage);
+ return;
+ }
+
+ if (mState == CodecState::Closed) {
+ LOG("Configure: CodecState::Closed, rejecting with InvalidState");
+ aRv.ThrowInvalidStateError("The codec is no longer usable");
+ return;
+ }
+
+ // Clone a ConfigType as the active Encode config.
+ RefPtr<ConfigTypeInternal> config =
+ EncoderType::CreateConfigInternal(aConfig);
+ if (!config) {
+ aRv.Throw(NS_ERROR_UNEXPECTED); // Invalid description data.
+ return;
+ }
+
+ mState = CodecState::Configured;
+ mEncodeCounter = 0;
+ mFlushCounter = 0;
+
+ mControlMessageQueue.push(MakeRefPtr<ConfigureMessage>(sNextId++, config));
+ mLatestConfigureId = mControlMessageQueue.back()->mMessageId;
+ LOG("%s %p enqueues %s", EncoderType::Name.get(), this,
+ mControlMessageQueue.back()->ToString().get());
+ ProcessControlMessageQueue();
+}
+
+template <typename EncoderType>
+void EncoderTemplate<EncoderType>::EncodeAudioData(InputType& aInput,
+ ErrorResult& aRv) {
+ AssertIsOnOwningThread();
+
+ LOG("%s %p, EncodeAudioData", EncoderType::Name.get(), this);
+
+ if (mState != CodecState::Configured) {
+ aRv.ThrowInvalidStateError("Encoder must be configured first");
+ return;
+ }
+
+ if (aInput.IsClosed()) {
+ aRv.ThrowTypeError("input AudioData has been closed");
+ return;
+ }
+
+ mEncodeQueueSize += 1;
+ // Dummy options here as a shortcut
+ mControlMessageQueue.push(MakeRefPtr<EncodeMessage>(
+ mLatestConfigureId,
+ EncoderType::CreateInputInternal(aInput, VideoEncoderEncodeOptions())));
+ LOGV("%s %p enqueues %s", EncoderType::Name.get(), this,
+ mControlMessageQueue.back()->ToString().get());
+ ProcessControlMessageQueue();
+}
+
+template <typename EncoderType>
+void EncoderTemplate<EncoderType>::EncodeVideoFrame(
+ InputType& aInput, const VideoEncoderEncodeOptions& aOptions,
+ ErrorResult& aRv) {
+ AssertIsOnOwningThread();
+
+ LOG("%s::Encode %p %s", EncoderType::Name.get(), this,
+ aInput.ToString().get());
+
+ if (mState != CodecState::Configured) {
+ aRv.ThrowInvalidStateError("Encoder must be configured first");
+ return;
+ }
+
+ if (aInput.IsClosed()) {
+ aRv.ThrowTypeError("input VideoFrame has been closed");
+ return;
+ }
+
+ mEncodeQueueSize += 1;
+ mControlMessageQueue.push(MakeRefPtr<EncodeMessage>(
+ mLatestConfigureId, EncoderType::CreateInputInternal(aInput, aOptions),
+ Some(aOptions)));
+ LOGV("%s %p enqueues %s", EncoderType::Name.get(), this,
+ mControlMessageQueue.back()->ToString().get());
+ ProcessControlMessageQueue();
+}
+
+template <typename EncoderType>
+already_AddRefed<Promise> EncoderTemplate<EncoderType>::Flush(
+ ErrorResult& aRv) {
+ AssertIsOnOwningThread();
+
+ LOG("%s::Flush %p", EncoderType::Name.get(), this);
+
+ if (mState != CodecState::Configured) {
+ LOG("%s %p, wrong state!", EncoderType::Name.get(), this);
+ aRv.ThrowInvalidStateError("Encoder must be configured first");
+ return nullptr;
+ }
+
+ RefPtr<Promise> p = Promise::Create(GetParentObject(), aRv);
+ if (NS_WARN_IF(aRv.Failed())) {
+ return p.forget();
+ }
+
+ mControlMessageQueue.push(MakeRefPtr<FlushMessage>(mLatestConfigureId, p));
+ LOG("%s %p enqueues %s", EncoderType::Name.get(), this,
+ mControlMessageQueue.back()->ToString().get());
+ ProcessControlMessageQueue();
+ return p.forget();
+}
+
+template <typename EncoderType>
+void EncoderTemplate<EncoderType>::Reset(ErrorResult& aRv) {
+ AssertIsOnOwningThread();
+
+ LOG("%s %p, Reset", EncoderType::Name.get(), this);
+
+ if (auto r = ResetInternal(NS_ERROR_DOM_ABORT_ERR); r.isErr()) {
+ aRv.Throw(r.unwrapErr());
+ }
+}
+
+template <typename EncoderType>
+void EncoderTemplate<EncoderType>::Close(ErrorResult& aRv) {
+ AssertIsOnOwningThread();
+
+ LOG("%s::Close %p", EncoderType::Name.get(), this);
+
+ if (auto r = CloseInternal(NS_ERROR_DOM_ABORT_ERR); r.isErr()) {
+ aRv.Throw(r.unwrapErr());
+ }
+}
+
+template <typename EncoderType>
+Result<Ok, nsresult> EncoderTemplate<EncoderType>::ResetInternal(
+ const nsresult& aResult) {
+ AssertIsOnOwningThread();
+
+ LOG("%s::Reset %p", EncoderType::Name.get(), this);
+
+ if (mState == CodecState::Closed) {
+ return Err(NS_ERROR_DOM_INVALID_STATE_ERR);
+ }
+
+ mState = CodecState::Unconfigured;
+ mEncodeCounter = 0;
+ mFlushCounter = 0;
+
+ CancelPendingControlMessages(aResult);
+ DestroyEncoderAgentIfAny();
+
+ if (mEncodeQueueSize > 0) {
+ mEncodeQueueSize = 0;
+ ScheduleDequeueEvent();
+ }
+
+ StopBlockingMessageQueue();
+
+ return Ok();
+}
+
+template <typename EncoderType>
+Result<Ok, nsresult> EncoderTemplate<EncoderType>::CloseInternal(
+ const nsresult& aResult) {
+ AssertIsOnOwningThread();
+
+ MOZ_TRY(ResetInternal(aResult));
+ mState = CodecState::Closed;
+ if (aResult != NS_ERROR_DOM_ABORT_ERR) {
+ nsCString error;
+ GetErrorName(aResult, error);
+ LOGE("%s %p Close on error: %s", EncoderType::Name.get(), this,
+ error.get());
+ ReportError(aResult);
+ }
+ return Ok();
+}
+
+template <typename EncoderType>
+void EncoderTemplate<EncoderType>::ReportError(const nsresult& aResult) {
+ AssertIsOnOwningThread();
+
+ RefPtr<DOMException> e = DOMException::Create(aResult);
+ RefPtr<WebCodecsErrorCallback> cb(mErrorCallback);
+ cb->Call(*e);
+}
+
+template <typename EncoderType>
+void EncoderTemplate<EncoderType>::OutputEncodedData(
+ nsTArray<RefPtr<MediaRawData>>&& aData) {
+ AssertIsOnOwningThread();
+ MOZ_ASSERT(mState == CodecState::Configured);
+ MOZ_ASSERT(mActiveConfig);
+
+ // Get JSContext for RootedDictionary.
+ // The EncoderType::MetadataType, VideoDecoderConfig, and VideoColorSpaceInit
+ // below are rooted to work around the JS hazard issues.
+ AutoJSAPI jsapi;
+ DebugOnly<bool> ok =
+ jsapi.Init(GetParentObject()); // TODO: check returned value?
+ JSContext* cx = jsapi.cx();
+
+ RefPtr<typename EncoderType::OutputCallbackType> cb(mOutputCallback);
+ for (auto& data : aData) {
+ // It's possible to have reset() called in between this task having been
+ // dispatched, and running -- no output callback should happen when that's
+ // the case.
+ // This is imprecise in the spec, but discussed in
+ // https://github.com/w3c/webcodecs/issues/755 and agreed upon.
+ if (!mActiveConfig) {
+ return;
+ }
+ RefPtr<typename EncoderType::OutputType> encodedData =
+ EncodedDataToOutputType(GetParentObject(), data);
+
+ RootedDictionary<typename EncoderType::MetadataType> metadata(cx);
+ if (mOutputNewDecoderConfig) {
+ VideoDecoderConfigInternal decoderConfigInternal =
+ EncoderConfigToDecoderConfig(GetParentObject(), data, *mActiveConfig);
+
+ // Convert VideoDecoderConfigInternal to VideoDecoderConfig
+ RootedDictionary<VideoDecoderConfig> decoderConfig(cx);
+ decoderConfig.mCodec = decoderConfigInternal.mCodec;
+ if (decoderConfigInternal.mCodedHeight) {
+ decoderConfig.mCodedHeight.Construct(
+ decoderConfigInternal.mCodedHeight.value());
+ }
+ if (decoderConfigInternal.mCodedWidth) {
+ decoderConfig.mCodedWidth.Construct(
+ decoderConfigInternal.mCodedWidth.value());
+ }
+ if (decoderConfigInternal.mColorSpace) {
+ RootedDictionary<VideoColorSpaceInit> colorSpace(cx);
+ colorSpace.mFullRange =
+ MaybeToNullable(decoderConfigInternal.mColorSpace->mFullRange);
+ colorSpace.mMatrix =
+ MaybeToNullable(decoderConfigInternal.mColorSpace->mMatrix);
+ colorSpace.mPrimaries =
+ MaybeToNullable(decoderConfigInternal.mColorSpace->mPrimaries);
+ colorSpace.mTransfer =
+ MaybeToNullable(decoderConfigInternal.mColorSpace->mTransfer);
+ decoderConfig.mColorSpace.Construct(std::move(colorSpace));
+ }
+ if (decoderConfigInternal.mDescription &&
+ !decoderConfigInternal.mDescription.value()->IsEmpty()) {
+ auto& abov = decoderConfig.mDescription.Construct();
+ AutoEntryScript aes(GetParentObject(), "EncoderConfigToDecoderConfig");
+ size_t lengthBytes =
+ decoderConfigInternal.mDescription.value()->Length();
+ UniquePtr<uint8_t[], JS::FreePolicy> extradata(
+ new uint8_t[lengthBytes]);
+ PodCopy(extradata.get(),
+ decoderConfigInternal.mDescription.value()->Elements(),
+ lengthBytes);
+ JS::Rooted<JSObject*> description(
+ aes.cx(), JS::NewArrayBufferWithContents(aes.cx(), lengthBytes,
+ std::move(extradata)));
+ JS::Rooted<JS::Value> value(aes.cx(), JS::ObjectValue(*description));
+ DebugOnly<bool> rv = abov.Init(aes.cx(), value);
+ }
+ if (decoderConfigInternal.mDisplayAspectHeight) {
+ decoderConfig.mDisplayAspectHeight.Construct(
+ decoderConfigInternal.mDisplayAspectHeight.value());
+ }
+ if (decoderConfigInternal.mDisplayAspectWidth) {
+ decoderConfig.mDisplayAspectWidth.Construct(
+ decoderConfigInternal.mDisplayAspectWidth.value());
+ }
+ if (decoderConfigInternal.mOptimizeForLatency) {
+ decoderConfig.mOptimizeForLatency.Construct(
+ decoderConfigInternal.mOptimizeForLatency.value());
+ }
+
+ metadata.mDecoderConfig.Construct(std::move(decoderConfig));
+ mOutputNewDecoderConfig = false;
+ LOGE("New config passed to output callback: %s",
+ NS_ConvertUTF16toUTF8(decoderConfigInternal.ToString()).get());
+ }
+
+ nsAutoCString metadataInfo;
+
+ if (data->mTemporalLayerId) {
+ RootedDictionary<SvcOutputMetadata> svc(cx);
+ svc.mTemporalLayerId.Construct(data->mTemporalLayerId.value());
+ metadata.mSvc.Construct(std::move(svc));
+ metadataInfo.Append(
+ nsPrintfCString(", temporal layer id %d",
+ metadata.mSvc.Value().mTemporalLayerId.Value()));
+ }
+
+ if (metadata.mDecoderConfig.WasPassed()) {
+ metadataInfo.Append(", new decoder config");
+ }
+
+ LOG("EncoderTemplate:: output callback (ts: % " PRId64 ")%s",
+ encodedData->Timestamp(), metadataInfo.get());
+ cb->Call((typename EncoderType::OutputType&)(*encodedData), metadata);
+ }
+}
+
+template <typename EncoderType>
+class EncoderTemplate<EncoderType>::ErrorRunnable final
+ : public DiscardableRunnable {
+ public:
+ ErrorRunnable(Self* aEncoder, const nsresult& aError)
+ : DiscardableRunnable("Decoder ErrorRunnable"),
+ mEncoder(aEncoder),
+ mError(aError) {
+ MOZ_ASSERT(mEncoder);
+ }
+ ~ErrorRunnable() = default;
+
+ // MOZ_CAN_RUN_SCRIPT_BOUNDARY until Runnable::Run is MOZ_CAN_RUN_SCRIPT.
+ // See bug 1535398.
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY NS_IMETHOD Run() override {
+ nsCString error;
+ GetErrorName(mError, error);
+ LOGE("%s %p report error: %s", EncoderType::Name.get(), mEncoder.get(),
+ error.get());
+ RefPtr<Self> d = std::move(mEncoder);
+ d->ReportError(mError);
+ return NS_OK;
+ }
+
+ private:
+ RefPtr<Self> mEncoder;
+ const nsresult mError;
+};
+
+template <typename EncoderType>
+class EncoderTemplate<EncoderType>::OutputRunnable final
+ : public DiscardableRunnable {
+ public:
+ OutputRunnable(Self* aEncoder, WebCodecsId aConfigureId,
+ const nsACString& aLabel,
+ nsTArray<RefPtr<MediaRawData>>&& aData)
+ : DiscardableRunnable("Decoder OutputRunnable"),
+ mEncoder(aEncoder),
+ mConfigureId(aConfigureId),
+ mLabel(aLabel),
+ mData(std::move(aData)) {
+ MOZ_ASSERT(mEncoder);
+ }
+ ~OutputRunnable() = default;
+
+ // MOZ_CAN_RUN_SCRIPT_BOUNDARY until Runnable::Run is MOZ_CAN_RUN_SCRIPT.
+ // See bug 1535398.
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY NS_IMETHOD Run() override {
+ if (mEncoder->mState != CodecState::Configured) {
+ LOGV("%s %p has been %s. Discard %s-result for EncoderAgent #%zu",
+ EncoderType::Name.get(), mEncoder.get(),
+ mEncoder->mState == CodecState::Closed ? "closed" : "reset",
+ mLabel.get(), mConfigureId);
+ return NS_OK;
+ }
+
+ MOZ_ASSERT(mEncoder->mAgent);
+ if (mConfigureId != mEncoder->mAgent->mId) {
+ LOGW(
+ "%s %p has been re-configured. Still yield %s-result for "
+ "EncoderAgent #%zu",
+ EncoderType::Name.get(), mEncoder.get(), mLabel.get(), mConfigureId);
+ }
+
+ LOGV("%s %p, yields %s-result for EncoderAgent #%zu",
+ EncoderType::Name.get(), mEncoder.get(), mLabel.get(), mConfigureId);
+ RefPtr<Self> d = std::move(mEncoder);
+ d->OutputEncodedData(std::move(mData));
+
+ return NS_OK;
+ }
+
+ private:
+ RefPtr<Self> mEncoder;
+ const WebCodecsId mConfigureId;
+ const nsCString mLabel;
+ nsTArray<RefPtr<MediaRawData>> mData;
+};
+
+template <typename EncoderType>
+void EncoderTemplate<EncoderType>::ScheduleOutputEncodedData(
+ nsTArray<RefPtr<MediaRawData>>&& aData, const nsACString& aLabel) {
+ MOZ_ASSERT(mState == CodecState::Configured);
+ MOZ_ASSERT(mAgent);
+
+ MOZ_ALWAYS_SUCCEEDS(NS_DispatchToCurrentThread(MakeAndAddRef<OutputRunnable>(
+ this, mAgent->mId, aLabel, std::move(aData))));
+}
+
+template <typename EncoderType>
+void EncoderTemplate<EncoderType>::ScheduleClose(const nsresult& aResult) {
+ AssertIsOnOwningThread();
+ MOZ_ASSERT(mState == CodecState::Configured);
+
+ auto task = [self = RefPtr{this}, result = aResult] {
+ if (self->mState == CodecState::Closed) {
+ nsCString error;
+ GetErrorName(result, error);
+ LOGW("%s %p has been closed. Ignore close with %s",
+ EncoderType::Name.get(), self.get(), error.get());
+ return;
+ }
+ DebugOnly<Result<Ok, nsresult>> r = self->CloseInternal(result);
+ MOZ_ASSERT(r.value.isOk());
+ };
+ nsISerialEventTarget* target = GetCurrentSerialEventTarget();
+
+ if (NS_IsMainThread()) {
+ MOZ_ALWAYS_SUCCEEDS(target->Dispatch(
+ NS_NewRunnableFunction("ScheduleClose Runnable (main)", task)));
+ return;
+ }
+
+ MOZ_ALWAYS_SUCCEEDS(target->Dispatch(NS_NewCancelableRunnableFunction(
+ "ScheduleClose Runnable (worker)", task)));
+}
+
+template <typename EncoderType>
+void EncoderTemplate<EncoderType>::ScheduleDequeueEvent() {
+ AssertIsOnOwningThread();
+
+ if (mDequeueEventScheduled) {
+ return;
+ }
+ mDequeueEventScheduled = true;
+
+ auto dispatcher = [self = RefPtr{this}] {
+ self->FireEvent(nsGkAtoms::ondequeue, u"dequeue"_ns);
+ self->mDequeueEventScheduled = false;
+ };
+ nsISerialEventTarget* target = GetCurrentSerialEventTarget();
+
+ if (NS_IsMainThread()) {
+ MOZ_ALWAYS_SUCCEEDS(target->Dispatch(NS_NewRunnableFunction(
+ "ScheduleDequeueEvent Runnable (main)", dispatcher)));
+ return;
+ }
+
+ MOZ_ALWAYS_SUCCEEDS(target->Dispatch(NS_NewCancelableRunnableFunction(
+ "ScheduleDequeueEvent Runnable (worker)", dispatcher)));
+}
+
+template <typename EncoderType>
+nsresult EncoderTemplate<EncoderType>::FireEvent(nsAtom* aTypeWithOn,
+ const nsAString& aEventType) {
+ if (aTypeWithOn && !HasListenersFor(aTypeWithOn)) {
+ return NS_ERROR_ABORT;
+ }
+
+ LOGV("Dispatching %s event to %s %p", NS_ConvertUTF16toUTF8(aEventType).get(),
+ EncoderType::Name.get(), this);
+ RefPtr<Event> event = new Event(this, nullptr, nullptr);
+ event->InitEvent(aEventType, true, true);
+ event->SetTrusted(true);
+ this->DispatchEvent(*event);
+ return NS_OK;
+}
+
+template <typename EncoderType>
+void EncoderTemplate<EncoderType>::SchedulePromiseResolveOrReject(
+ already_AddRefed<Promise> aPromise, const nsresult& aResult) {
+ AssertIsOnOwningThread();
+
+ RefPtr<Promise> p = aPromise;
+ auto resolver = [p, result = aResult] {
+ if (NS_FAILED(result)) {
+ p->MaybeReject(NS_ERROR_DOM_ENCODING_NOT_SUPPORTED_ERR);
+ return;
+ }
+ p->MaybeResolveWithUndefined();
+ };
+ nsISerialEventTarget* target = GetCurrentSerialEventTarget();
+
+ if (NS_IsMainThread()) {
+ MOZ_ALWAYS_SUCCEEDS(target->Dispatch(NS_NewRunnableFunction(
+ "SchedulePromiseResolveOrReject Runnable (main)", resolver)));
+ return;
+ }
+
+ MOZ_ALWAYS_SUCCEEDS(target->Dispatch(NS_NewCancelableRunnableFunction(
+ "SchedulePromiseResolveOrReject Runnable (worker)", resolver)));
+}
+
+template <typename EncoderType>
+void EncoderTemplate<EncoderType>::ProcessControlMessageQueue() {
+ AssertIsOnOwningThread();
+ MOZ_ASSERT(mState == CodecState::Configured);
+
+ while (!mMessageQueueBlocked && !mControlMessageQueue.empty()) {
+ RefPtr<ControlMessage>& msg = mControlMessageQueue.front();
+ if (msg->AsConfigureMessage()) {
+ if (ProcessConfigureMessage(msg->AsConfigureMessage()) ==
+ MessageProcessedResult::NotProcessed) {
+ break;
+ }
+ } else if (msg->AsEncodeMessage()) {
+ if (ProcessEncodeMessage(msg->AsEncodeMessage()) ==
+ MessageProcessedResult::NotProcessed) {
+ break;
+ }
+ } else {
+ MOZ_ASSERT(msg->AsFlushMessage());
+ if (ProcessFlushMessage(msg->AsFlushMessage()) ==
+ MessageProcessedResult::NotProcessed) {
+ break;
+ }
+ }
+ }
+}
+
+template <typename EncoderType>
+void EncoderTemplate<EncoderType>::CancelPendingControlMessages(
+ const nsresult& aResult) {
+ AssertIsOnOwningThread();
+
+ // Cancel the message that is being processed.
+ if (mProcessingMessage) {
+ LOG("%s %p cancels current %s", EncoderType::Name.get(), this,
+ mProcessingMessage->ToString().get());
+ mProcessingMessage->Cancel();
+
+ if (RefPtr<FlushMessage> flush = mProcessingMessage->AsFlushMessage()) {
+ flush->RejectPromiseIfAny(aResult);
+ }
+
+ mProcessingMessage = nullptr;
+ }
+
+ // Clear the message queue.
+ while (!mControlMessageQueue.empty()) {
+ LOG("%s %p cancels pending %s", EncoderType::Name.get(), this,
+ mControlMessageQueue.front()->ToString().get());
+
+ MOZ_ASSERT(!mControlMessageQueue.front()->IsProcessing());
+ if (RefPtr<FlushMessage> flush =
+ mControlMessageQueue.front()->AsFlushMessage()) {
+ flush->RejectPromiseIfAny(aResult);
+ }
+
+ mControlMessageQueue.pop();
+ }
+}
+
+template <typename EncoderType>
+MessageProcessedResult EncoderTemplate<EncoderType>::ProcessConfigureMessage(
+ RefPtr<ConfigureMessage> aMessage) {
+ AssertIsOnOwningThread();
+ MOZ_ASSERT(mState == CodecState::Configured);
+ MOZ_ASSERT(aMessage->AsConfigureMessage());
+
+ if (mProcessingMessage) {
+ return MessageProcessedResult::NotProcessed;
+ }
+
+ mProcessingMessage = aMessage;
+ mControlMessageQueue.pop();
+ LOG("%s %p Configuring, message queue processing blocked(%s)",
+ EncoderType::Name.get(), this, aMessage->ToString().get());
+ StartBlockingMessageQueue();
+
+ bool supported = EncoderType::IsSupported(*aMessage->Config());
+
+ if (!supported) {
+ LOGE("%s %p ProcessConfigureMessage error (sync): Not supported",
+ EncoderType::Name.get(), this);
+ mProcessingMessage = nullptr;
+ NS_DispatchToCurrentThread(NS_NewRunnableFunction(
+ "ProcessConfigureMessage (async): not supported",
+ [self = RefPtr(this)]() MOZ_CAN_RUN_SCRIPT_BOUNDARY {
+ LOGE("%s %p ProcessConfigureMessage (async close): Not supported",
+ EncoderType::Name.get(), self.get());
+ DebugOnly<Result<Ok, nsresult>> r =
+ self->CloseInternal(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
+ MOZ_ASSERT(r.value.isOk());
+ }));
+ return MessageProcessedResult::Processed;
+ }
+
+ if (mAgent) {
+ Reconfigure(aMessage);
+ } else {
+ Configure(aMessage);
+ }
+
+ return MessageProcessedResult::Processed;
+}
+
+template <typename EncoderType>
+void EncoderTemplate<EncoderType>::StartBlockingMessageQueue() {
+ LOG("=== Message queue blocked");
+ mMessageQueueBlocked = true;
+}
+
+template <typename EncoderType>
+void EncoderTemplate<EncoderType>::StopBlockingMessageQueue() {
+ LOG("=== Message queue unblocked");
+ mMessageQueueBlocked = false;
+}
+
+template <typename EncoderType>
+void EncoderTemplate<EncoderType>::Reconfigure(
+ RefPtr<ConfigureMessage> aMessage) {
+ MOZ_ASSERT(mAgent);
+
+ LOG("Reconfiguring encoder: %s",
+ NS_ConvertUTF16toUTF8(aMessage->Config()->ToString()).get());
+
+ RefPtr<ConfigTypeInternal> config = aMessage->Config();
+ RefPtr<WebCodecsConfigurationChangeList> configDiff =
+ config->Diff(*mActiveConfig);
+
+ // Nothing to do, return now
+ if (configDiff->Empty()) {
+ LOG("Reconfigure with identical config, returning.");
+ mProcessingMessage = nullptr;
+ StopBlockingMessageQueue();
+ return;
+ }
+
+ LOG("Attempting to reconfigure encoder: old: %s new: %s, diff: %s",
+ NS_ConvertUTF16toUTF8(mActiveConfig->ToString()).get(),
+ NS_ConvertUTF16toUTF8(config->ToString()).get(),
+ NS_ConvertUTF16toUTF8(configDiff->ToString()).get());
+
+ RefPtr<EncoderConfigurationChangeList> changeList =
+ configDiff->ToPEMChangeList();
+
+ // Attempt to reconfigure the encoder, if the config is similar enough.
+ // Otherwise, or if reconfiguring on the fly didn't work, flush the encoder
+ // and recreate a new one.
+
+ mAgent->Reconfigure(changeList)
+ ->Then(
+ GetCurrentSerialEventTarget(), __func__,
+ [self = RefPtr{this}, id = mAgent->mId,
+ message = std::move(aMessage)](
+ const EncoderAgent::ReconfigurationPromise::ResolveOrRejectValue&
+ aResult) {
+ MOZ_ASSERT(self->mProcessingMessage);
+ MOZ_ASSERT(self->mProcessingMessage->AsConfigureMessage());
+ MOZ_ASSERT(self->mState == CodecState::Configured);
+ MOZ_ASSERT(self->mAgent);
+ MOZ_ASSERT(id == self->mAgent->mId);
+ MOZ_ASSERT(self->mActiveConfig);
+
+ if (aResult.IsReject()) {
+ LOGE(
+ "Reconfiguring on the fly didn't succeed, flushing and "
+ "configuring a new encoder");
+ self->mAgent->Drain()->Then(
+ GetCurrentSerialEventTarget(), __func__,
+ [self, id,
+ message](EncoderAgent::EncodePromise::ResolveOrRejectValue&&
+ aResult) {
+ if (aResult.IsReject()) {
+ const MediaResult& error = aResult.RejectValue();
+ LOGE(
+ "%s %p, EncoderAgent #%zu failed to flush during "
+ "reconfigure, closing: %s",
+ EncoderType::Name.get(), self.get(), id,
+ error.Description().get());
+
+ self->mProcessingMessage = nullptr;
+ self->ScheduleClose(
+ NS_ERROR_DOM_ENCODING_NOT_SUPPORTED_ERR);
+ return;
+ }
+
+ LOG("%s %p flush during reconfiguration succeeded.",
+ EncoderType::Name.get(), self.get());
+
+ // If flush succeeded, schedule to output encoded data
+ // first, destroy the current encoder, and proceed to create
+ // a new one.
+ MOZ_ASSERT(aResult.IsResolve());
+ nsTArray<RefPtr<MediaRawData>> data =
+ std::move(aResult.ResolveValue());
+
+ if (data.IsEmpty()) {
+ LOG("%s %p no data during flush for reconfiguration with "
+ "encoder destruction",
+ EncoderType::Name.get(), self.get());
+ } else {
+ LOG("%s %p Outputing %zu frames during flush "
+ " for reconfiguration with encoder destruction",
+ EncoderType::Name.get(), self.get(), data.Length());
+ self->ScheduleOutputEncodedData(
+ std::move(data),
+ nsLiteralCString("Flush before reconfigure"));
+ }
+
+ NS_DispatchToCurrentThread(NS_NewRunnableFunction(
+ "Destroy + recreate encoder after failed reconfigure",
+ [self = RefPtr(self), message]()
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY {
+ // Destroy the agent, and finally create a fresh
+ // encoder with the new configuration.
+ self->DestroyEncoderAgentIfAny();
+ self->Configure(message);
+ }));
+ });
+ return;
+ }
+
+ LOG("%s %p, EncoderAgent #%zu has been reconfigured on the fly to "
+ "%s",
+ EncoderType::Name.get(), self.get(), id,
+ message->ToString().get());
+
+ self->mOutputNewDecoderConfig = true;
+ self->mActiveConfig = message->Config();
+ self->mProcessingMessage = nullptr;
+ self->StopBlockingMessageQueue();
+ self->ProcessControlMessageQueue();
+ });
+}
+
+template <typename EncoderType>
+void EncoderTemplate<EncoderType>::Configure(
+ RefPtr<ConfigureMessage> aMessage) {
+ MOZ_ASSERT(!mAgent);
+
+ LOG("Configuring encoder: %s",
+ NS_ConvertUTF16toUTF8(aMessage->Config()->ToString()).get());
+
+ mOutputNewDecoderConfig = true;
+ mActiveConfig = aMessage->Config();
+
+ bool decoderAgentCreated =
+ CreateEncoderAgent(aMessage->mMessageId, aMessage->Config());
+ if (!decoderAgentCreated) {
+ LOGE(
+ "%s %p ProcessConfigureMessage error (sync): encoder agent "
+ "creation "
+ "failed",
+ EncoderType::Name.get(), this);
+ mProcessingMessage = nullptr;
+ NS_DispatchToCurrentThread(NS_NewRunnableFunction(
+ "ProcessConfigureMessage (async): encoder agent creating failed",
+ [self = RefPtr(this)]() MOZ_CAN_RUN_SCRIPT_BOUNDARY {
+ LOGE(
+ "%s %p ProcessConfigureMessage (async close): encoder agent "
+ "creation failed",
+ EncoderType::Name.get(), self.get());
+ DebugOnly<Result<Ok, nsresult>> r =
+ self->CloseInternal(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
+ MOZ_ASSERT(r.value.isOk());
+ }));
+ return;
+ }
+
+ MOZ_ASSERT(mAgent);
+ MOZ_ASSERT(mActiveConfig);
+
+ LOG("Real configuration with fresh config: %s",
+ NS_ConvertUTF16toUTF8(mActiveConfig->ToString().get()).get());
+
+ EncoderConfig config = mActiveConfig->ToEncoderConfig();
+ mAgent->Configure(config)
+ ->Then(GetCurrentSerialEventTarget(), __func__,
+ [self = RefPtr{this}, id = mAgent->mId, aMessage](
+ const EncoderAgent::ConfigurePromise::ResolveOrRejectValue&
+ aResult) MOZ_CAN_RUN_SCRIPT_BOUNDARY {
+ MOZ_ASSERT(self->mProcessingMessage);
+ MOZ_ASSERT(self->mProcessingMessage->AsConfigureMessage());
+ MOZ_ASSERT(self->mState == CodecState::Configured);
+ MOZ_ASSERT(self->mAgent);
+ MOZ_ASSERT(id == self->mAgent->mId);
+ MOZ_ASSERT(self->mActiveConfig);
+
+ LOG("%s %p, EncoderAgent #%zu %s has been %s. now unblocks "
+ "message-queue-processing",
+ EncoderType::Name.get(), self.get(), id,
+ aMessage->ToString().get(),
+ aResult.IsResolve() ? "resolved" : "rejected");
+
+ aMessage->Complete();
+ self->mProcessingMessage = nullptr;
+
+ if (aResult.IsReject()) {
+ // The spec asks to close the decoder with an
+ // NotSupportedError so we log the exact error here.
+ const MediaResult& error = aResult.RejectValue();
+ LOGE("%s %p, EncoderAgent #%zu failed to configure: %s",
+ EncoderType::Name.get(), self.get(), id,
+ error.Description().get());
+ DebugOnly<Result<Ok, nsresult>> r = self->CloseInternal(
+ NS_ERROR_DOM_ENCODING_NOT_SUPPORTED_ERR);
+ MOZ_ASSERT(r.value.isOk());
+ return; // No further process
+ }
+
+ self->StopBlockingMessageQueue();
+ self->ProcessControlMessageQueue();
+ })
+ ->Track(aMessage->Request());
+}
+
+template <typename EncoderType>
+MessageProcessedResult EncoderTemplate<EncoderType>::ProcessEncodeMessage(
+ RefPtr<EncodeMessage> aMessage) {
+ AssertIsOnOwningThread();
+ MOZ_ASSERT(mState == CodecState::Configured);
+ MOZ_ASSERT(aMessage->AsEncodeMessage());
+
+ if (mProcessingMessage) {
+ return MessageProcessedResult::NotProcessed;
+ }
+
+ mProcessingMessage = aMessage;
+ mControlMessageQueue.pop();
+
+ LOGV("%s %p processing %s", EncoderType::Name.get(), this,
+ aMessage->ToString().get());
+
+ mEncodeQueueSize -= 1;
+ ScheduleDequeueEvent();
+
+ // Treat it like decode error if no EncoderAgent is available or the encoded
+ // data is invalid.
+ auto closeOnError = [&]() {
+ mProcessingMessage = nullptr;
+ ScheduleClose(NS_ERROR_DOM_ENCODING_NOT_SUPPORTED_ERR);
+ return MessageProcessedResult::Processed;
+ };
+
+ if (!mAgent) {
+ LOGE("%s %p is not configured", EncoderType::Name.get(), this);
+ return closeOnError();
+ }
+
+ MOZ_ASSERT(mActiveConfig);
+ RefPtr<InputTypeInternal> data = aMessage->mData;
+ if (!data) {
+ LOGE("%s %p, data for %s is empty or invalid", EncoderType::Name.get(),
+ this, aMessage->ToString().get());
+ return closeOnError();
+ }
+
+ mAgent->Encode(data.get())
+ ->Then(GetCurrentSerialEventTarget(), __func__,
+ [self = RefPtr{this}, id = mAgent->mId, aMessage](
+ EncoderAgent::EncodePromise::ResolveOrRejectValue&& aResult) {
+ MOZ_ASSERT(self->mProcessingMessage);
+ MOZ_ASSERT(self->mProcessingMessage->AsEncodeMessage());
+ MOZ_ASSERT(self->mState == CodecState::Configured);
+ MOZ_ASSERT(self->mAgent);
+ MOZ_ASSERT(id == self->mAgent->mId);
+ MOZ_ASSERT(self->mActiveConfig);
+
+ nsCString msgStr = aMessage->ToString();
+
+ aMessage->Complete();
+ self->mProcessingMessage = nullptr;
+
+ if (aResult.IsReject()) {
+ // The spec asks to queue a task to run close the decoder
+ // with an EncodingError so we log the exact error here.
+ const MediaResult& error = aResult.RejectValue();
+ LOGE("%s %p, EncoderAgent #%zu %s failed: %s",
+ EncoderType::Name.get(), self.get(), id, msgStr.get(),
+ error.Description().get());
+ self->ScheduleClose(NS_ERROR_DOM_ENCODING_NOT_SUPPORTED_ERR);
+ return; // No further process
+ }
+
+ MOZ_ASSERT(aResult.IsResolve());
+ nsTArray<RefPtr<MediaRawData>> data =
+ std::move(aResult.ResolveValue());
+ if (data.IsEmpty()) {
+ LOGV("%s %p got no data for %s", EncoderType::Name.get(),
+ self.get(), msgStr.get());
+ } else {
+ LOGV("%s %p, schedule %zu encoded data output",
+ EncoderType::Name.get(), self.get(), data.Length());
+ self->ScheduleOutputEncodedData(std::move(data), msgStr);
+ }
+
+ self->ProcessControlMessageQueue();
+ })
+ ->Track(aMessage->Request());
+
+ return MessageProcessedResult::Processed;
+}
+
+template <typename EncoderType>
+MessageProcessedResult EncoderTemplate<EncoderType>::ProcessFlushMessage(
+ RefPtr<FlushMessage> aMessage) {
+ AssertIsOnOwningThread();
+ MOZ_ASSERT(mState == CodecState::Configured);
+ MOZ_ASSERT(aMessage->AsFlushMessage());
+
+ if (mProcessingMessage) {
+ return MessageProcessedResult::NotProcessed;
+ }
+
+ mProcessingMessage = aMessage;
+ mControlMessageQueue.pop();
+
+ LOG("%s %p starts processing %s", EncoderType::Name.get(), this,
+ aMessage->ToString().get());
+
+ // No agent, no thing to do. The promise has been rejected with the
+ // appropriate error in ResetInternal already.
+ if (!mAgent) {
+ LOGE("%s %p no agent, nothing to do", EncoderType::Name.get(), this);
+ mProcessingMessage = nullptr;
+ return MessageProcessedResult::Processed;
+ }
+
+ mAgent->Drain()
+ ->Then(GetCurrentSerialEventTarget(), __func__,
+ [self = RefPtr{this}, id = mAgent->mId, aMessage](
+ EncoderAgent::EncodePromise::ResolveOrRejectValue&& aResult) {
+ MOZ_ASSERT(self->mProcessingMessage);
+ MOZ_ASSERT(self->mProcessingMessage->AsFlushMessage());
+ MOZ_ASSERT(self->mState == CodecState::Configured);
+ MOZ_ASSERT(self->mAgent);
+ MOZ_ASSERT(id == self->mAgent->mId);
+ MOZ_ASSERT(self->mActiveConfig);
+
+ LOG("%s %p, EncoderAgent #%zu %s has been %s",
+ EncoderType::Name.get(), self.get(), id,
+ aMessage->ToString().get(),
+ aResult.IsResolve() ? "resolved" : "rejected");
+
+ nsCString msgStr = aMessage->ToString();
+
+ aMessage->Complete();
+
+ // If flush failed, it means encoder fails to encode the data
+ // sent before, so we treat it like an encode error. We reject
+ // the promise first and then queue a task to close VideoEncoder
+ // with an EncodingError.
+ if (aResult.IsReject()) {
+ const MediaResult& error = aResult.RejectValue();
+ LOGE("%s %p, EncoderAgent #%zu failed to flush: %s",
+ EncoderType::Name.get(), self.get(), id,
+ error.Description().get());
+
+ // Reject with an EncodingError instead of the error we got
+ // above.
+ self->SchedulePromiseResolveOrReject(
+ aMessage->TakePromise(),
+ NS_ERROR_DOM_ENCODING_NOT_SUPPORTED_ERR);
+
+ self->mProcessingMessage = nullptr;
+
+ self->ScheduleClose(NS_ERROR_DOM_ENCODING_NOT_SUPPORTED_ERR);
+ return; // No further process
+ }
+
+ // If flush succeeded, schedule to output encoded data first
+ // and then resolve the promise, then keep processing the
+ // control messages.
+ MOZ_ASSERT(aResult.IsResolve());
+ nsTArray<RefPtr<MediaRawData>> data =
+ std::move(aResult.ResolveValue());
+
+ if (data.IsEmpty()) {
+ LOG("%s %p gets no data for %s", EncoderType::Name.get(),
+ self.get(), msgStr.get());
+ } else {
+ LOG("%s %p, schedule %zu encoded data output for %s",
+ EncoderType::Name.get(), self.get(), data.Length(),
+ msgStr.get());
+ self->ScheduleOutputEncodedData(std::move(data), msgStr);
+ }
+
+ self->SchedulePromiseResolveOrReject(aMessage->TakePromise(),
+ NS_OK);
+ self->mProcessingMessage = nullptr;
+ self->ProcessControlMessageQueue();
+ })
+ ->Track(aMessage->Request());
+
+ return MessageProcessedResult::Processed;
+}
+
+// CreateEncoderAgent will create an EncoderAgent paired with a xpcom-shutdown
+// blocker and a worker-reference. Besides the needs mentioned in the header
+// file, the blocker and the worker-reference also provides an entry point for
+// us to clean up the resources. Other than the encoder dtor, Reset(), or
+// Close(), the resources should be cleaned up in the following situations:
+// 1. Encoder on window, closing document
+// 2. Encoder on worker, closing document
+// 3. Encoder on worker, terminating worker
+//
+// In case 1, the entry point to clean up is in the mShutdownBlocker's
+// ShutdownpPomise-resolver. In case 2, the entry point is in mWorkerRef's
+// shutting down callback. In case 3, the entry point is in mWorkerRef's
+// shutting down callback.
+
+template <typename EncoderType>
+bool EncoderTemplate<EncoderType>::CreateEncoderAgent(
+ WebCodecsId aId, RefPtr<ConfigTypeInternal> aConfig) {
+ AssertIsOnOwningThread();
+ MOZ_ASSERT(mState == CodecState::Configured);
+ MOZ_ASSERT(!mAgent);
+ MOZ_ASSERT(!mShutdownBlocker);
+ MOZ_ASSERT_IF(!NS_IsMainThread(), !mWorkerRef);
+
+ auto resetOnFailure = MakeScopeExit([&]() {
+ mAgent = nullptr;
+ mActiveConfig = nullptr;
+ mShutdownBlocker = nullptr;
+ mWorkerRef = nullptr;
+ });
+
+ // If the encoder is on worker, get a worker reference.
+ if (!NS_IsMainThread()) {
+ WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
+ if (NS_WARN_IF(!workerPrivate)) {
+ return false;
+ }
+
+ // Clean up all the resources when worker is going away.
+ RefPtr<StrongWorkerRef> workerRef = StrongWorkerRef::Create(
+ workerPrivate, "EncoderTemplate::CreateEncoderAgent",
+ [self = RefPtr{this}]() {
+ LOG("%s %p, worker is going away", EncoderType::Name.get(),
+ self.get());
+ Unused << self->ResetInternal(NS_ERROR_DOM_ABORT_ERR);
+ });
+ if (NS_WARN_IF(!workerRef)) {
+ return false;
+ }
+
+ mWorkerRef = new ThreadSafeWorkerRef(workerRef);
+ }
+
+ mAgent = MakeRefPtr<EncoderAgent>(aId);
+
+ // ShutdownBlockingTicket requires an unique name to register its own
+ // nsIAsyncShutdownBlocker since each blocker needs a distinct name.
+ // To do that, we use EncoderAgent's unique id to create a unique name.
+ nsAutoString uniqueName;
+ uniqueName.AppendPrintf(
+ "Blocker for EncoderAgent #%zu (codec: %s) @ %p", mAgent->mId,
+ NS_ConvertUTF16toUTF8(mActiveConfig->mCodec).get(), mAgent.get());
+
+ mShutdownBlocker = media::ShutdownBlockingTicket::Create(
+ uniqueName, NS_LITERAL_STRING_FROM_CSTRING(__FILE__), __LINE__);
+ if (!mShutdownBlocker) {
+ LOGE("%s %p failed to create %s", EncoderType::Name.get(), this,
+ NS_ConvertUTF16toUTF8(uniqueName).get());
+ return false;
+ }
+
+ // Clean up all the resources when xpcom-will-shutdown arrives since the
+ // page is going to be closed.
+ mShutdownBlocker->ShutdownPromise()->Then(
+ GetCurrentSerialEventTarget(), __func__,
+ [self = RefPtr{this}, id = mAgent->mId,
+ ref = mWorkerRef](bool /* aUnUsed*/) {
+ LOG("%s %p gets xpcom-will-shutdown notification for EncoderAgent "
+ "#%zu",
+ EncoderType::Name.get(), self.get(), id);
+ Unused << self->ResetInternal(NS_ERROR_DOM_ABORT_ERR);
+ },
+ [self = RefPtr{this}, id = mAgent->mId,
+ ref = mWorkerRef](bool /* aUnUsed*/) {
+ LOG("%s %p removes shutdown-blocker #%zu before getting any "
+ "notification. EncoderAgent should have been dropped",
+ EncoderType::Name.get(), self.get(), id);
+ MOZ_ASSERT(!self->mAgent || self->mAgent->mId != id);
+ });
+
+ LOG("%s %p creates EncoderAgent #%zu @ %p and its shutdown-blocker",
+ EncoderType::Name.get(), this, mAgent->mId, mAgent.get());
+
+ resetOnFailure.release();
+ return true;
+}
+
+template <typename EncoderType>
+void EncoderTemplate<EncoderType>::DestroyEncoderAgentIfAny() {
+ AssertIsOnOwningThread();
+
+ if (!mAgent) {
+ LOG("%s %p has no EncoderAgent to destroy", EncoderType::Name.get(), this);
+ return;
+ }
+
+ MOZ_ASSERT(mActiveConfig);
+ MOZ_ASSERT(mShutdownBlocker);
+ MOZ_ASSERT_IF(!NS_IsMainThread(), mWorkerRef);
+
+ LOG("%s %p destroys EncoderAgent #%zu @ %p", EncoderType::Name.get(), this,
+ mAgent->mId, mAgent.get());
+ mActiveConfig = nullptr;
+ RefPtr<EncoderAgent> agent = std::move(mAgent);
+ // mShutdownBlocker should be kept alive until the shutdown is done.
+ // mWorkerRef is used to ensure this task won't be discarded in worker.
+ agent->Shutdown()->Then(
+ GetCurrentSerialEventTarget(), __func__,
+ [self = RefPtr{this}, id = agent->mId, ref = std::move(mWorkerRef),
+ blocker = std::move(mShutdownBlocker)](
+ const ShutdownPromise::ResolveOrRejectValue& aResult) {
+ LOG("%s %p, EncoderAgent #%zu's shutdown has been %s. Drop its "
+ "shutdown-blocker now",
+ EncoderType::Name.get(), self.get(), id,
+ aResult.IsResolve() ? "resolved" : "rejected");
+ });
+}
+
+template class EncoderTemplate<VideoEncoderTraits>;
+
+#undef LOG
+#undef LOGW
+#undef LOGE
+#undef LOGV
+#undef LOG_INTERNAL
+
+} // namespace mozilla::dom
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-01 07:39:00 +0000