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Diffstat (limited to '')
| -rw-r--r-- | dom/media/ipc/RemoteVideoDecoder.cpp | 296 |
1 files changed, 296 insertions, 0 deletions
diff --git a/dom/media/ipc/RemoteVideoDecoder.cpp b/dom/media/ipc/RemoteVideoDecoder.cpp new file mode 100644 index 0000000000..d3587b4a0b --- /dev/null +++ b/dom/media/ipc/RemoteVideoDecoder.cpp @@ -0,0 +1,296 @@ +/* -*- 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 "RemoteVideoDecoder.h" + +#include "mozilla/layers/ImageDataSerializer.h" + +#ifdef MOZ_AV1 +# include "AOMDecoder.h" +# include "DAV1DDecoder.h" +#endif +#ifdef XP_WIN +# include "WMFDecoderModule.h" +#endif +#include "GPUVideoImage.h" +#include "ImageContainer.h" // for PlanarYCbCrData and BufferRecycleBin +#include "MediaDataDecoderProxy.h" +#include "MediaInfo.h" +#include "PDMFactory.h" +#include "RemoteDecoderManagerParent.h" +#include "RemoteImageHolder.h" +#include "mozilla/StaticPrefs_media.h" +#include "mozilla/Telemetry.h" +#include "mozilla/layers/ImageClient.h" +#include "mozilla/layers/TextureClient.h" +#include "mozilla/layers/VideoBridgeChild.h" + +namespace mozilla { + +using namespace layers; // for PlanarYCbCrData and BufferRecycleBin +using namespace ipc; +using namespace gfx; + +layers::TextureForwarder* KnowsCompositorVideo::GetTextureForwarder() { + auto* vbc = VideoBridgeChild::GetSingleton(); + return (vbc && vbc->CanSend()) ? vbc : nullptr; +} +layers::LayersIPCActor* KnowsCompositorVideo::GetLayersIPCActor() { + return GetTextureForwarder(); +} + +/* static */ already_AddRefed<KnowsCompositorVideo> +KnowsCompositorVideo::TryCreateForIdentifier( + const layers::TextureFactoryIdentifier& aIdentifier) { + VideoBridgeChild* child = VideoBridgeChild::GetSingleton(); + if (!child) { + return nullptr; + } + + RefPtr<KnowsCompositorVideo> knowsCompositor = new KnowsCompositorVideo(); + knowsCompositor->IdentifyTextureHost(aIdentifier); + return knowsCompositor.forget(); +} + +RemoteVideoDecoderChild::RemoteVideoDecoderChild(RemoteDecodeIn aLocation) + : RemoteDecoderChild(aLocation), mBufferRecycleBin(new BufferRecycleBin) {} + +MediaResult RemoteVideoDecoderChild::ProcessOutput( + DecodedOutputIPDL&& aDecodedData) { + AssertOnManagerThread(); + MOZ_ASSERT(aDecodedData.type() == DecodedOutputIPDL::TArrayOfRemoteVideoData); + + nsTArray<RemoteVideoData>& arrayData = + aDecodedData.get_ArrayOfRemoteVideoData()->Array(); + + for (auto&& data : arrayData) { + if (data.image().IsEmpty()) { + // This is a NullData object. + mDecodedData.AppendElement(MakeRefPtr<NullData>( + data.base().offset(), data.base().time(), data.base().duration())); + continue; + } + RefPtr<Image> image = data.image().TransferToImage(mBufferRecycleBin); + + RefPtr<VideoData> video = VideoData::CreateFromImage( + data.display(), data.base().offset(), data.base().time(), + data.base().duration(), image, data.base().keyframe(), + data.base().timecode()); + + if (!video) { + // OOM + return MediaResult(NS_ERROR_OUT_OF_MEMORY, __func__); + } + mDecodedData.AppendElement(std::move(video)); + } + return NS_OK; +} + +MediaResult RemoteVideoDecoderChild::InitIPDL( + const VideoInfo& aVideoInfo, float aFramerate, + const CreateDecoderParams::OptionSet& aOptions, + Maybe<layers::TextureFactoryIdentifier> aIdentifier, + const Maybe<uint64_t>& aMediaEngineId, + const Maybe<TrackingId>& aTrackingId) { + MOZ_ASSERT_IF(mLocation == RemoteDecodeIn::GpuProcess, aIdentifier); + + RefPtr<RemoteDecoderManagerChild> manager = + RemoteDecoderManagerChild::GetSingleton(mLocation); + + // The manager isn't available because RemoteDecoderManagerChild has been + // initialized with null end points and we don't want to decode video on RDD + // process anymore. Return false here so that we can fallback to other PDMs. + if (!manager) { + return MediaResult(NS_ERROR_DOM_MEDIA_FATAL_ERR, + RESULT_DETAIL("RemoteDecoderManager is not available.")); + } + + if (!manager->CanSend()) { + if (mLocation == RemoteDecodeIn::GpuProcess) { + // The manager doesn't support sending messages because we've just crashed + // and are working on reinitialization. Don't initialize mIPDLSelfRef and + // leave us in an error state. We'll then immediately reject the promise + // when Init() is called and the caller can try again. Hopefully by then + // the new manager is ready, or we've notified the caller of it being no + // longer available. If not, then the cycle repeats until we're ready. + return NS_OK; + } + + return MediaResult(NS_ERROR_DOM_MEDIA_FATAL_ERR, + RESULT_DETAIL("RemoteDecoderManager unable to send.")); + } + + mIPDLSelfRef = this; + VideoDecoderInfoIPDL decoderInfo(aVideoInfo, aFramerate); + Unused << manager->SendPRemoteDecoderConstructor( + this, decoderInfo, aOptions, aIdentifier, aMediaEngineId, aTrackingId); + + return NS_OK; +} + +RemoteVideoDecoderParent::RemoteVideoDecoderParent( + RemoteDecoderManagerParent* aParent, const VideoInfo& aVideoInfo, + float aFramerate, const CreateDecoderParams::OptionSet& aOptions, + const Maybe<layers::TextureFactoryIdentifier>& aIdentifier, + nsISerialEventTarget* aManagerThread, TaskQueue* aDecodeTaskQueue, + const Maybe<uint64_t>& aMediaEngineId, Maybe<TrackingId> aTrackingId) + : RemoteDecoderParent(aParent, aOptions, aManagerThread, aDecodeTaskQueue, + aMediaEngineId, std::move(aTrackingId)), + mVideoInfo(aVideoInfo), + mFramerate(aFramerate) { + if (aIdentifier) { + // Check to see if we have a direct PVideoBridge connection to the + // destination process specified in aIdentifier, and create a + // KnowsCompositor representing that connection if so. If this fails, then + // we fall back to returning the decoded frames directly via Output(). + mKnowsCompositor = + KnowsCompositorVideo::TryCreateForIdentifier(*aIdentifier); + } +} + +IPCResult RemoteVideoDecoderParent::RecvConstruct( + ConstructResolver&& aResolver) { + auto imageContainer = MakeRefPtr<layers::ImageContainer>(); + if (mKnowsCompositor && XRE_IsRDDProcess()) { + // Ensure to allocate recycle allocator + imageContainer->EnsureRecycleAllocatorForRDD(mKnowsCompositor); + } + auto params = CreateDecoderParams{ + mVideoInfo, mKnowsCompositor, + imageContainer, CreateDecoderParams::VideoFrameRate(mFramerate), + mOptions, CreateDecoderParams::NoWrapper(true), + mMediaEngineId, mTrackingId, + }; + + mParent->EnsurePDMFactory().CreateDecoder(params)->Then( + GetCurrentSerialEventTarget(), __func__, + [resolver = std::move(aResolver), self = RefPtr{this}]( + PlatformDecoderModule::CreateDecoderPromise::ResolveOrRejectValue&& + aValue) { + if (aValue.IsReject()) { + resolver(aValue.RejectValue()); + return; + } + MOZ_ASSERT(aValue.ResolveValue()); + self->mDecoder = + new MediaDataDecoderProxy(aValue.ResolveValue().forget(), + do_AddRef(self->mDecodeTaskQueue.get())); + resolver(NS_OK); + }); + return IPC_OK(); +} + +MediaResult RemoteVideoDecoderParent::ProcessDecodedData( + MediaDataDecoder::DecodedData&& aData, DecodedOutputIPDL& aDecodedData) { + MOZ_ASSERT(OnManagerThread()); + + // If the video decoder bridge has shut down, stop. + if (mKnowsCompositor && !mKnowsCompositor->GetTextureForwarder()) { + aDecodedData = MakeRefPtr<ArrayOfRemoteVideoData>(); + return NS_OK; + } + + nsTArray<RemoteVideoData> array; + + for (const auto& data : aData) { + MOZ_ASSERT(data->mType == MediaData::Type::VIDEO_DATA || + data->mType == MediaData::Type::NULL_DATA, + "Can only decode videos using RemoteDecoderParent!"); + if (data->mType == MediaData::Type::NULL_DATA) { + RemoteVideoData output( + MediaDataIPDL(data->mOffset, data->mTime, data->mTimecode, + data->mDuration, data->mKeyframe), + IntSize(), RemoteImageHolder(), -1); + + array.AppendElement(std::move(output)); + continue; + } + VideoData* video = static_cast<VideoData*>(data.get()); + + MOZ_ASSERT(video->mImage, + "Decoded video must output a layer::Image to " + "be used with RemoteDecoderParent"); + + RefPtr<TextureClient> texture; + SurfaceDescriptor sd; + IntSize size; + bool needStorage = false; + + if (mKnowsCompositor) { + texture = video->mImage->GetTextureClient(mKnowsCompositor); + + if (!texture) { + texture = ImageClient::CreateTextureClientForImage(video->mImage, + mKnowsCompositor); + } + + if (texture) { + if (!texture->IsAddedToCompositableClient()) { + texture->InitIPDLActor(mKnowsCompositor, mParent->GetContentId()); + texture->SetAddedToCompositableClient(); + } + needStorage = true; + SurfaceDescriptorRemoteDecoder remoteSD; + texture->GetSurfaceDescriptorRemoteDecoder(&remoteSD); + sd = remoteSD; + size = texture->GetSize(); + } + } + + // If failed to create a GPU accelerated surface descriptor, fall back to + // copying frames via shmem. + if (!IsSurfaceDescriptorValid(sd)) { + needStorage = false; + PlanarYCbCrImage* image = video->mImage->AsPlanarYCbCrImage(); + if (!image) { + return MediaResult(NS_ERROR_UNEXPECTED, + "Expected Planar YCbCr image in " + "RemoteVideoDecoderParent::ProcessDecodedData"); + } + + SurfaceDescriptorBuffer sdBuffer; + nsresult rv = image->BuildSurfaceDescriptorBuffer( + sdBuffer, [&](uint32_t aBufferSize) { + ShmemBuffer buffer = AllocateBuffer(aBufferSize); + if (buffer.Valid()) { + return MemoryOrShmem(std::move(buffer.Get())); + } + return MemoryOrShmem(); + }); + NS_ENSURE_SUCCESS(rv, rv); + + sd = sdBuffer; + size = image->GetSize(); + } + + if (needStorage) { + MOZ_ASSERT(sd.type() != SurfaceDescriptor::TSurfaceDescriptorBuffer); + mParent->StoreImage(static_cast<const SurfaceDescriptorGPUVideo&>(sd), + video->mImage, texture); + } + + RemoteVideoData output( + MediaDataIPDL(data->mOffset, data->mTime, data->mTimecode, + data->mDuration, data->mKeyframe), + video->mDisplay, + RemoteImageHolder( + mParent, + XRE_IsGPUProcess() + ? VideoBridgeSource::GpuProcess + : (XRE_IsRDDProcess() + ? VideoBridgeSource::RddProcess + : VideoBridgeSource::MFMediaEngineCDMProcess), + size, video->mImage->GetColorDepth(), sd), + video->mFrameID); + + array.AppendElement(std::move(output)); + } + + aDecodedData = MakeRefPtr<ArrayOfRemoteVideoData>(std::move(array)); + + return NS_OK; +} + +} // namespace mozilla |