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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "RemoteDecoderParent.h"
#include "RemoteDecoderManagerParent.h"
#include "mozilla/Unused.h"
namespace mozilla {
RemoteDecoderParent::RemoteDecoderParent(
RemoteDecoderManagerParent* aParent,
const CreateDecoderParams::OptionSet& aOptions,
nsISerialEventTarget* aManagerThread, TaskQueue* aDecodeTaskQueue,
const Maybe<uint64_t>& aMediaEngineId, Maybe<TrackingId> aTrackingId)
: ShmemRecycleAllocator(this),
mParent(aParent),
mOptions(aOptions),
mDecodeTaskQueue(aDecodeTaskQueue),
mTrackingId(aTrackingId),
mMediaEngineId(aMediaEngineId),
mManagerThread(aManagerThread) {
MOZ_COUNT_CTOR(RemoteDecoderParent);
MOZ_ASSERT(OnManagerThread());
// We hold a reference to ourselves to keep us alive until IPDL
// explictly destroys us. There may still be refs held by
// tasks, but no new ones should be added after we're
// destroyed.
mIPDLSelfRef = this;
}
RemoteDecoderParent::~RemoteDecoderParent() {
MOZ_COUNT_DTOR(RemoteDecoderParent);
}
void RemoteDecoderParent::Destroy() {
MOZ_ASSERT(OnManagerThread());
mIPDLSelfRef = nullptr;
}
mozilla::ipc::IPCResult RemoteDecoderParent::RecvInit(
InitResolver&& aResolver) {
MOZ_ASSERT(OnManagerThread());
RefPtr<RemoteDecoderParent> self = this;
mDecoder->Init()->Then(
mManagerThread, __func__,
[self, resolver = std::move(aResolver)](
MediaDataDecoder::InitPromise::ResolveOrRejectValue&& aValue) {
if (!self->CanRecv()) {
// The promise to the child would have already been rejected.
return;
}
if (aValue.IsReject()) {
resolver(aValue.RejectValue());
return;
}
auto track = aValue.ResolveValue();
MOZ_ASSERT(track == TrackInfo::kAudioTrack ||
track == TrackInfo::kVideoTrack);
if (self->mDecoder) {
nsCString hardwareReason;
bool hardwareAccelerated =
self->mDecoder->IsHardwareAccelerated(hardwareReason);
resolver(InitCompletionIPDL{
track, self->mDecoder->GetDescriptionName(),
self->mDecoder->GetProcessName(), self->mDecoder->GetCodecName(),
hardwareAccelerated, hardwareReason,
self->mDecoder->NeedsConversion()});
}
});
return IPC_OK();
}
void RemoteDecoderParent::DecodeNextSample(
const RefPtr<ArrayOfRemoteMediaRawData>& aData, size_t aIndex,
MediaDataDecoder::DecodedData&& aOutput, DecodeResolver&& aResolver) {
MOZ_ASSERT(OnManagerThread());
if (!CanRecv()) {
// Avoid unnecessarily creating shmem objects later.
return;
}
if (!mDecoder) {
// We got shutdown or the child got destroyed.
aResolver(MediaResult(NS_ERROR_ABORT, __func__));
return;
}
if (aData->Count() == aIndex) {
DecodedOutputIPDL result;
MediaResult rv = ProcessDecodedData(std::move(aOutput), result);
if (NS_FAILED(rv)) {
aResolver(std::move(rv)); // Out of Memory.
} else {
aResolver(std::move(result));
}
return;
}
RefPtr<MediaRawData> rawData = aData->ElementAt(aIndex);
if (!rawData) {
// OOM
aResolver(MediaResult(NS_ERROR_OUT_OF_MEMORY, __func__));
return;
}
mDecoder->Decode(rawData)->Then(
mManagerThread, __func__,
[self = RefPtr{this}, this, aData, aIndex, output = std::move(aOutput),
resolver = std::move(aResolver)](
MediaDataDecoder::DecodePromise::ResolveOrRejectValue&&
aValue) mutable {
if (aValue.IsReject()) {
resolver(aValue.RejectValue());
return;
}
output.AppendElements(std::move(aValue.ResolveValue()));
// Call again in case we have more data to decode.
DecodeNextSample(aData, aIndex + 1, std::move(output),
std::move(resolver));
});
}
mozilla::ipc::IPCResult RemoteDecoderParent::RecvDecode(
ArrayOfRemoteMediaRawData* aData, DecodeResolver&& aResolver) {
MOZ_ASSERT(OnManagerThread());
// If we are here, we know all previously returned DecodedOutputIPDL got
// used by the child. We can mark all previously sent ShmemBuffer as
// available again.
ReleaseAllBuffers();
MediaDataDecoder::DecodedData output;
DecodeNextSample(aData, 0, std::move(output), std::move(aResolver));
return IPC_OK();
}
mozilla::ipc::IPCResult RemoteDecoderParent::RecvFlush(
FlushResolver&& aResolver) {
MOZ_ASSERT(OnManagerThread());
RefPtr<RemoteDecoderParent> self = this;
mDecoder->Flush()->Then(
mManagerThread, __func__,
[self, resolver = std::move(aResolver)](
MediaDataDecoder::FlushPromise::ResolveOrRejectValue&& aValue) {
self->ReleaseAllBuffers();
if (aValue.IsReject()) {
resolver(aValue.RejectValue());
} else {
resolver(MediaResult(NS_OK));
}
});
return IPC_OK();
}
mozilla::ipc::IPCResult RemoteDecoderParent::RecvDrain(
DrainResolver&& aResolver) {
MOZ_ASSERT(OnManagerThread());
RefPtr<RemoteDecoderParent> self = this;
mDecoder->Drain()->Then(
mManagerThread, __func__,
[self, this, resolver = std::move(aResolver)](
MediaDataDecoder::DecodePromise::ResolveOrRejectValue&& aValue) {
ReleaseAllBuffers();
if (!self->CanRecv()) {
// Avoid unnecessarily creating shmem objects later.
return;
}
if (aValue.IsReject()) {
resolver(aValue.RejectValue());
return;
}
DecodedOutputIPDL output;
MediaResult rv =
ProcessDecodedData(std::move(aValue.ResolveValue()), output);
if (NS_FAILED(rv)) {
resolver(rv);
} else {
resolver(std::move(output));
}
});
return IPC_OK();
}
mozilla::ipc::IPCResult RemoteDecoderParent::RecvShutdown(
ShutdownResolver&& aResolver) {
MOZ_ASSERT(OnManagerThread());
if (mDecoder) {
RefPtr<RemoteDecoderParent> self = this;
mDecoder->Shutdown()->Then(
mManagerThread, __func__,
[self, resolver = std::move(aResolver)](
const ShutdownPromise::ResolveOrRejectValue& aValue) {
MOZ_ASSERT(aValue.IsResolve());
self->ReleaseAllBuffers();
resolver(true);
});
}
mDecoder = nullptr;
return IPC_OK();
}
mozilla::ipc::IPCResult RemoteDecoderParent::RecvSetSeekThreshold(
const TimeUnit& aTime) {
MOZ_ASSERT(OnManagerThread());
mDecoder->SetSeekThreshold(aTime);
return IPC_OK();
}
void RemoteDecoderParent::ActorDestroy(ActorDestroyReason aWhy) {
MOZ_ASSERT(OnManagerThread());
if (mDecoder) {
mDecoder->Shutdown();
mDecoder = nullptr;
}
CleanupShmemRecycleAllocator();
}
bool RemoteDecoderParent::OnManagerThread() {
return mParent->OnManagerThread();
}
} // namespace mozilla
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