diff options
Diffstat (limited to '')
| -rw-r--r-- | dom/media/gmp/GMPVideoDecoderParent.cpp | 461 |
1 files changed, 461 insertions, 0 deletions
diff --git a/dom/media/gmp/GMPVideoDecoderParent.cpp b/dom/media/gmp/GMPVideoDecoderParent.cpp new file mode 100644 index 0000000000..dfe7182c41 --- /dev/null +++ b/dom/media/gmp/GMPVideoDecoderParent.cpp @@ -0,0 +1,461 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* 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 "GMPVideoDecoderParent.h" + +#include "GMPContentParent.h" +#include "GMPUtils.h" +#include "GMPLog.h" +#include "GMPMessageUtils.h" +#include "GMPVideoEncodedFrameImpl.h" +#include "GMPVideoi420FrameImpl.h" +#include "mozilla/gmp/GMPTypes.h" +#include "mozilla/Unused.h" +#include "nsAutoRef.h" +#include "nsPrintfCString.h" +#include "nsThreadUtils.h" + +namespace mozilla::gmp { + +// States: +// Initial: mIsOpen == false +// on InitDecode success -> Open +// on Shutdown -> Dead +// Open: mIsOpen == true +// on Close -> Dead +// on ActorDestroy -> Dead +// on Shutdown -> Dead +// Dead: mIsOpen == false + +GMPVideoDecoderParent::GMPVideoDecoderParent(GMPContentParent* aPlugin) + : GMPSharedMemManager(aPlugin), + mIsOpen(false), + mShuttingDown(false), + mActorDestroyed(false), + mIsAwaitingResetComplete(false), + mIsAwaitingDrainComplete(false), + mPlugin(aPlugin), + mCallback(nullptr), + mVideoHost(this), + mPluginId(aPlugin->GetPluginId()), + mPluginType(aPlugin->GetPluginType()), + mFrameCount(0) { + MOZ_ASSERT(mPlugin); +} + +GMPVideoDecoderParent::~GMPVideoDecoderParent() = default; + +GMPVideoHostImpl& GMPVideoDecoderParent::Host() { return mVideoHost; } + +// Note: may be called via Terminated() +void GMPVideoDecoderParent::Close() { + GMP_LOG_DEBUG("GMPVideoDecoderParent[%p]::Close()", this); + MOZ_ASSERT(!mPlugin || mPlugin->GMPEventTarget()->IsOnCurrentThread()); + + // Ensure if we've received a Close while waiting for a ResetComplete + // or DrainComplete notification, we'll unblock the caller before processing + // the close. This seems unlikely to happen, but better to be careful. + UnblockResetAndDrain(); + + // Consumer is done with us; we can shut down. No more callbacks should + // be made to mCallback. Note: do this before Shutdown()! + mCallback = nullptr; + // Let Shutdown mark us as dead so it knows if we had been alive + + // In case this is the last reference + RefPtr<GMPVideoDecoderParent> kungfudeathgrip(this); + Release(); + Shutdown(); +} + +nsresult GMPVideoDecoderParent::InitDecode( + const GMPVideoCodec& aCodecSettings, + const nsTArray<uint8_t>& aCodecSpecific, + GMPVideoDecoderCallbackProxy* aCallback, int32_t aCoreCount) { + GMP_LOG_DEBUG("GMPVideoDecoderParent[%p]::InitDecode()", this); + + if (mActorDestroyed) { + NS_WARNING("Trying to use a destroyed GMP video decoder!"); + return NS_ERROR_FAILURE; + } + if (mIsOpen) { + NS_WARNING("Trying to re-init an in-use GMP video decoder!"); + return NS_ERROR_FAILURE; + } + + MOZ_ASSERT(mPlugin->GMPEventTarget()->IsOnCurrentThread()); + + if (!aCallback) { + return NS_ERROR_FAILURE; + } + mCallback = aCallback; + + if (!SendInitDecode(aCodecSettings, aCodecSpecific, aCoreCount)) { + return NS_ERROR_FAILURE; + } + mIsOpen = true; + + // Async IPC, we don't have access to a return value. + return NS_OK; +} + +nsresult GMPVideoDecoderParent::Decode( + GMPUniquePtr<GMPVideoEncodedFrame> aInputFrame, bool aMissingFrames, + const nsTArray<uint8_t>& aCodecSpecificInfo, int64_t aRenderTimeMs) { + GMP_LOG_VERBOSE( + "GMPVideoDecoderParent[%p]::Decode() timestamp=%" PRId64 " keyframe=%d", + this, aInputFrame->TimeStamp(), aInputFrame->FrameType() == kGMPKeyFrame); + + if (!mIsOpen) { + GMP_LOG_ERROR( + "GMPVideoDecoderParent[%p]::Decode() ERROR; dead GMPVideoDecoder", + this); + NS_WARNING("Trying to use an dead GMP video decoder"); + return NS_ERROR_FAILURE; + } + + MOZ_ASSERT(mPlugin->GMPEventTarget()->IsOnCurrentThread()); + + GMPUniquePtr<GMPVideoEncodedFrameImpl> inputFrameImpl( + static_cast<GMPVideoEncodedFrameImpl*>(aInputFrame.release())); + + // Very rough kill-switch if the plugin stops processing. If it's merely + // hung and continues, we'll come back to life eventually. + // 3* is because we're using 3 buffers per frame for i420 data for now. + if ((NumInUse(GMPSharedMem::kGMPFrameData) > + 3 * GMPSharedMem::kGMPBufLimit) || + (NumInUse(GMPSharedMem::kGMPEncodedData) > GMPSharedMem::kGMPBufLimit)) { + GMP_LOG_ERROR( + "GMPVideoDecoderParent[%p]::Decode() ERROR; shmem buffer limit hit " + "frame=%d encoded=%d", + this, NumInUse(GMPSharedMem::kGMPFrameData), + NumInUse(GMPSharedMem::kGMPEncodedData)); + return NS_ERROR_FAILURE; + } + + GMPVideoEncodedFrameData frameData; + inputFrameImpl->RelinquishFrameData(frameData); + + if (!SendDecode(frameData, aMissingFrames, aCodecSpecificInfo, + aRenderTimeMs)) { + GMP_LOG_ERROR( + "GMPVideoDecoderParent[%p]::Decode() ERROR; SendDecode() failure.", + this); + return NS_ERROR_FAILURE; + } + mFrameCount++; + + // Async IPC, we don't have access to a return value. + return NS_OK; +} + +nsresult GMPVideoDecoderParent::Reset() { + GMP_LOG_DEBUG("GMPVideoDecoderParent[%p]::Reset()", this); + + if (!mIsOpen) { + NS_WARNING("Trying to use an dead GMP video decoder"); + return NS_ERROR_FAILURE; + } + + MOZ_ASSERT(mPlugin->GMPEventTarget()->IsOnCurrentThread()); + + if (!SendReset()) { + return NS_ERROR_FAILURE; + } + + mIsAwaitingResetComplete = true; + + RefPtr<GMPVideoDecoderParent> self(this); + nsCOMPtr<nsIRunnable> task = NS_NewRunnableFunction( + "gmp::GMPVideoDecoderParent::Reset", [self]() -> void { + GMP_LOG_DEBUG( + "GMPVideoDecoderParent[%p]::ResetCompleteTimeout() timed out " + "waiting for ResetComplete", + self.get()); + self->mResetCompleteTimeout = nullptr; + LogToBrowserConsole(nsLiteralString( + u"GMPVideoDecoderParent timed out waiting for ResetComplete()")); + }); + CancelResetCompleteTimeout(); + nsCOMPtr<nsISerialEventTarget> target = mPlugin->GMPEventTarget(); + mResetCompleteTimeout = SimpleTimer::Create(task, 5000, target); + + // Async IPC, we don't have access to a return value. + return NS_OK; +} + +void GMPVideoDecoderParent::CancelResetCompleteTimeout() { + if (mResetCompleteTimeout) { + mResetCompleteTimeout->Cancel(); + mResetCompleteTimeout = nullptr; + } +} + +nsresult GMPVideoDecoderParent::Drain() { + GMP_LOG_DEBUG("GMPVideoDecoderParent[%p]::Drain() frameCount=%d", this, + mFrameCount); + + if (!mIsOpen) { + NS_WARNING("Trying to use an dead GMP video decoder"); + return NS_ERROR_FAILURE; + } + + MOZ_ASSERT(mPlugin->GMPEventTarget()->IsOnCurrentThread()); + + if (!SendDrain()) { + return NS_ERROR_FAILURE; + } + + mIsAwaitingDrainComplete = true; + + // Async IPC, we don't have access to a return value. + return NS_OK; +} + +nsCString GMPVideoDecoderParent::GetDisplayName() const { + if (NS_WARN_IF(!mIsOpen)) { + return ""_ns; + } + + MOZ_ASSERT(mPlugin->GMPEventTarget()->IsOnCurrentThread()); + return mPlugin->GetDisplayName(); +} + +// Note: Consider keeping ActorDestroy sync'd up when making changes here. +nsresult GMPVideoDecoderParent::Shutdown() { + GMP_LOG_DEBUG("GMPVideoDecoderParent[%p]::Shutdown()", this); + MOZ_ASSERT(!mPlugin || mPlugin->GMPEventTarget()->IsOnCurrentThread()); + + if (mShuttingDown) { + return NS_OK; + } + mShuttingDown = true; + + // Ensure if we've received a shutdown while waiting for a ResetComplete + // or DrainComplete notification, we'll unblock the caller before processing + // the shutdown. + UnblockResetAndDrain(); + + // Notify client we're gone! Won't occur after Close() + if (mCallback) { + mCallback->Terminated(); + mCallback = nullptr; + } + + mIsOpen = false; + if (!mActorDestroyed) { + Unused << SendDecodingComplete(); + } + + return NS_OK; +} + +// Note: Keep this sync'd up with Shutdown +void GMPVideoDecoderParent::ActorDestroy(ActorDestroyReason aWhy) { + GMP_LOG_DEBUG("GMPVideoDecoderParent[%p]::ActorDestroy reason=%d", this, + aWhy); + + mIsOpen = false; + mActorDestroyed = true; + + // Ensure if we've received a destroy while waiting for a ResetComplete + // or DrainComplete notification, we'll unblock the caller before processing + // the error. + UnblockResetAndDrain(); + + if (mCallback) { + // May call Close() (and Shutdown()) immediately or with a delay + mCallback->Terminated(); + mCallback = nullptr; + } + if (mPlugin) { + // Ignore any return code. It is OK for this to fail without killing the + // process. + mPlugin->VideoDecoderDestroyed(this); + mPlugin = nullptr; + } + mVideoHost.ActorDestroyed(); + MaybeDisconnect(aWhy == AbnormalShutdown); +} + +mozilla::ipc::IPCResult GMPVideoDecoderParent::RecvDecoded( + const GMPVideoi420FrameData& aDecodedFrame) { + --mFrameCount; + if (aDecodedFrame.mUpdatedTimestamp() && + aDecodedFrame.mUpdatedTimestamp().value() != aDecodedFrame.mTimestamp()) { + GMP_LOG_VERBOSE( + "GMPVideoDecoderParent[%p]::RecvDecoded() timestamp=[%" PRId64 + " -> %" PRId64 "] frameCount=%d", + this, aDecodedFrame.mTimestamp(), + aDecodedFrame.mUpdatedTimestamp().value(), mFrameCount); + } else { + GMP_LOG_VERBOSE( + "GMPVideoDecoderParent[%p]::RecvDecoded() timestamp=%" PRId64 + " frameCount=%d", + this, aDecodedFrame.mTimestamp(), mFrameCount); + } + + if (mCallback) { + if (GMPVideoi420FrameImpl::CheckFrameData(aDecodedFrame)) { + auto f = new GMPVideoi420FrameImpl(aDecodedFrame, &mVideoHost); + + mCallback->Decoded(f); + } else { + GMP_LOG_ERROR( + "GMPVideoDecoderParent[%p]::RecvDecoded() " + "timestamp=%" PRId64 " decoded frame corrupt, ignoring", + this, aDecodedFrame.mTimestamp()); + // TODO: Verify if we should take more serious the arrival of + // a corrupted frame, see bug 1750506. + } + } + + return IPC_OK(); +} + +mozilla::ipc::IPCResult +GMPVideoDecoderParent::RecvReceivedDecodedReferenceFrame( + const uint64_t& aPictureId) { + if (mCallback) { + mCallback->ReceivedDecodedReferenceFrame(aPictureId); + } + + return IPC_OK(); +} + +mozilla::ipc::IPCResult GMPVideoDecoderParent::RecvReceivedDecodedFrame( + const uint64_t& aPictureId) { + if (mCallback) { + mCallback->ReceivedDecodedFrame(aPictureId); + } + + return IPC_OK(); +} + +mozilla::ipc::IPCResult GMPVideoDecoderParent::RecvInputDataExhausted() { + GMP_LOG_VERBOSE("GMPVideoDecoderParent[%p]::RecvInputDataExhausted()", this); + + if (mCallback) { + mCallback->InputDataExhausted(); + } + + return IPC_OK(); +} + +mozilla::ipc::IPCResult GMPVideoDecoderParent::RecvDrainComplete() { + GMP_LOG_DEBUG("GMPVideoDecoderParent[%p]::RecvDrainComplete() frameCount=%d", + this, mFrameCount); + nsAutoString msg; + msg.AppendLiteral( + "GMPVideoDecoderParent::RecvDrainComplete() outstanding frames="); + msg.AppendInt(mFrameCount); + LogToBrowserConsole(msg); + + if (mCallback && mIsAwaitingDrainComplete) { + mIsAwaitingDrainComplete = false; + + mCallback->DrainComplete(); + } + + return IPC_OK(); +} + +mozilla::ipc::IPCResult GMPVideoDecoderParent::RecvResetComplete() { + GMP_LOG_DEBUG("GMPVideoDecoderParent[%p]::RecvResetComplete()", this); + + CancelResetCompleteTimeout(); + + if (mCallback && mIsAwaitingResetComplete) { + mIsAwaitingResetComplete = false; + mFrameCount = 0; + + mCallback->ResetComplete(); + } + + return IPC_OK(); +} + +mozilla::ipc::IPCResult GMPVideoDecoderParent::RecvError(const GMPErr& aError) { + GMP_LOG_DEBUG("GMPVideoDecoderParent[%p]::RecvError(error=%d)", this, aError); + + if (mCallback) { + // Ensure if we've received an error while waiting for a ResetComplete + // or DrainComplete notification, we'll unblock the caller before processing + // the error. + UnblockResetAndDrain(); + + mCallback->Error(aError); + } + + return IPC_OK(); +} + +mozilla::ipc::IPCResult GMPVideoDecoderParent::RecvShutdown() { + GMP_LOG_DEBUG("GMPVideoDecoderParent[%p]::RecvShutdown()", this); + + Shutdown(); + return IPC_OK(); +} + +mozilla::ipc::IPCResult GMPVideoDecoderParent::RecvParentShmemForPool( + Shmem&& aEncodedBuffer) { + if (aEncodedBuffer.IsWritable()) { + mVideoHost.SharedMemMgr()->MgrDeallocShmem(GMPSharedMem::kGMPEncodedData, + aEncodedBuffer); + } + return IPC_OK(); +} + +mozilla::ipc::IPCResult GMPVideoDecoderParent::RecvNeedShmem( + const uint32_t& aFrameBufferSize, Shmem* aMem) { + ipc::Shmem mem; + + if (!mVideoHost.SharedMemMgr()->MgrAllocShmem(GMPSharedMem::kGMPFrameData, + aFrameBufferSize, &mem)) { + GMP_LOG_ERROR("%s: Failed to get a shared mem buffer for Child! size %u", + __FUNCTION__, aFrameBufferSize); + return IPC_FAIL(this, "Failed to get a shared mem buffer for Child!"); + } + *aMem = mem; + mem = ipc::Shmem(); + return IPC_OK(); +} + +mozilla::ipc::IPCResult GMPVideoDecoderParent::Recv__delete__() { + GMP_LOG_DEBUG("GMPVideoDecoderParent[%p]::Recv__delete__()", this); + + if (mPlugin) { + // Ignore any return code. It is OK for this to fail without killing the + // process. + mPlugin->VideoDecoderDestroyed(this); + mPlugin = nullptr; + } + + return IPC_OK(); +} + +void GMPVideoDecoderParent::UnblockResetAndDrain() { + GMP_LOG_DEBUG( + "GMPVideoDecoderParent[%p]::UnblockResetAndDrain() " + "awaitingResetComplete=%d awaitingDrainComplete=%d", + this, mIsAwaitingResetComplete, mIsAwaitingDrainComplete); + + if (!mCallback) { + MOZ_ASSERT(!mIsAwaitingResetComplete); + MOZ_ASSERT(!mIsAwaitingDrainComplete); + return; + } + if (mIsAwaitingResetComplete) { + mIsAwaitingResetComplete = false; + mCallback->ResetComplete(); + } + if (mIsAwaitingDrainComplete) { + mIsAwaitingDrainComplete = false; + mCallback->DrainComplete(); + } + CancelResetCompleteTimeout(); +} + +} // namespace mozilla::gmp |