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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 "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 == RemoteDecodeIn::GpuProcess),
mBufferRecycleBin(new BufferRecycleBin),
mLocation(aLocation) {}
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) {
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);
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)
: RemoteDecoderParent(aParent, aOptions, aManagerThread, aDecodeTaskQueue),
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),
};
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);
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;
ShmemBuffer buffer = AllocateBuffer(image->GetDataSize());
if (!buffer.Valid()) {
return MediaResult(NS_ERROR_OUT_OF_MEMORY,
"AllocShmem failed in "
"RemoteVideoDecoderParent::ProcessDecodedData");
}
sdBuffer.data() = std::move(buffer.Get());
image->BuildSurfaceDescriptorBuffer(sdBuffer);
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
: VideoBridgeSource::RddProcess,
size, sd),
video->mFrameID);
array.AppendElement(std::move(output));
}
aDecodedData = MakeRefPtr<ArrayOfRemoteVideoData>(std::move(array));
return NS_OK;
}
} // namespace mozilla