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Diffstat (limited to 'dom/media/gmp/GMPVideoDecoderChild.cpp')
| -rw-r--r-- | dom/media/gmp/GMPVideoDecoderChild.cpp | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/dom/media/gmp/GMPVideoDecoderChild.cpp b/dom/media/gmp/GMPVideoDecoderChild.cpp new file mode 100644 index 000000000..f9c1956e7 --- /dev/null +++ b/dom/media/gmp/GMPVideoDecoderChild.cpp @@ -0,0 +1,254 @@ +/* -*- 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 "GMPVideoDecoderChild.h" +#include "GMPVideoi420FrameImpl.h" +#include "GMPContentChild.h" +#include <stdio.h> +#include "mozilla/Unused.h" +#include "GMPVideoEncodedFrameImpl.h" +#include "runnable_utils.h" + +namespace mozilla { +namespace gmp { + +GMPVideoDecoderChild::GMPVideoDecoderChild(GMPContentChild* aPlugin) + : GMPSharedMemManager(aPlugin) + , mPlugin(aPlugin) + , mVideoDecoder(nullptr) + , mVideoHost(this) + , mNeedShmemIntrCount(0) + , mPendingDecodeComplete(false) +{ + MOZ_ASSERT(mPlugin); +} + +GMPVideoDecoderChild::~GMPVideoDecoderChild() +{ + MOZ_ASSERT(!mNeedShmemIntrCount); +} + +void +GMPVideoDecoderChild::Init(GMPVideoDecoder* aDecoder) +{ + MOZ_ASSERT(aDecoder, "Cannot initialize video decoder child without a video decoder!"); + mVideoDecoder = aDecoder; +} + +GMPVideoHostImpl& +GMPVideoDecoderChild::Host() +{ + return mVideoHost; +} + +void +GMPVideoDecoderChild::Decoded(GMPVideoi420Frame* aDecodedFrame) +{ + MOZ_ASSERT(mPlugin->GMPMessageLoop() == MessageLoop::current()); + + if (!aDecodedFrame) { + MOZ_CRASH("Not given a decoded frame!"); + } + + auto df = static_cast<GMPVideoi420FrameImpl*>(aDecodedFrame); + + GMPVideoi420FrameData frameData; + df->InitFrameData(frameData); + SendDecoded(frameData); + + aDecodedFrame->Destroy(); +} + +void +GMPVideoDecoderChild::ReceivedDecodedReferenceFrame(const uint64_t aPictureId) +{ + MOZ_ASSERT(mPlugin->GMPMessageLoop() == MessageLoop::current()); + + SendReceivedDecodedReferenceFrame(aPictureId); +} + +void +GMPVideoDecoderChild::ReceivedDecodedFrame(const uint64_t aPictureId) +{ + MOZ_ASSERT(mPlugin->GMPMessageLoop() == MessageLoop::current()); + + SendReceivedDecodedFrame(aPictureId); +} + +void +GMPVideoDecoderChild::InputDataExhausted() +{ + MOZ_ASSERT(mPlugin->GMPMessageLoop() == MessageLoop::current()); + + SendInputDataExhausted(); +} + +void +GMPVideoDecoderChild::DrainComplete() +{ + MOZ_ASSERT(mPlugin->GMPMessageLoop() == MessageLoop::current()); + + SendDrainComplete(); +} + +void +GMPVideoDecoderChild::ResetComplete() +{ + MOZ_ASSERT(mPlugin->GMPMessageLoop() == MessageLoop::current()); + + SendResetComplete(); +} + +void +GMPVideoDecoderChild::Error(GMPErr aError) +{ + MOZ_ASSERT(mPlugin->GMPMessageLoop() == MessageLoop::current()); + + SendError(aError); +} + +bool +GMPVideoDecoderChild::RecvInitDecode(const GMPVideoCodec& aCodecSettings, + InfallibleTArray<uint8_t>&& aCodecSpecific, + const int32_t& aCoreCount) +{ + if (!mVideoDecoder) { + return false; + } + + // Ignore any return code. It is OK for this to fail without killing the process. + mVideoDecoder->InitDecode(aCodecSettings, + aCodecSpecific.Elements(), + aCodecSpecific.Length(), + this, + aCoreCount); + return true; +} + +bool +GMPVideoDecoderChild::RecvDecode(const GMPVideoEncodedFrameData& aInputFrame, + const bool& aMissingFrames, + InfallibleTArray<uint8_t>&& aCodecSpecificInfo, + const int64_t& aRenderTimeMs) +{ + if (!mVideoDecoder) { + return false; + } + + auto f = new GMPVideoEncodedFrameImpl(aInputFrame, &mVideoHost); + + // Ignore any return code. It is OK for this to fail without killing the process. + mVideoDecoder->Decode(f, + aMissingFrames, + aCodecSpecificInfo.Elements(), + aCodecSpecificInfo.Length(), + aRenderTimeMs); + + return true; +} + +bool +GMPVideoDecoderChild::RecvChildShmemForPool(Shmem&& aFrameBuffer) +{ + if (aFrameBuffer.IsWritable()) { + mVideoHost.SharedMemMgr()->MgrDeallocShmem(GMPSharedMem::kGMPFrameData, + aFrameBuffer); + } + return true; +} + +bool +GMPVideoDecoderChild::RecvReset() +{ + if (!mVideoDecoder) { + return false; + } + + // Ignore any return code. It is OK for this to fail without killing the process. + mVideoDecoder->Reset(); + + return true; +} + +bool +GMPVideoDecoderChild::RecvDrain() +{ + if (!mVideoDecoder) { + return false; + } + + // Ignore any return code. It is OK for this to fail without killing the process. + mVideoDecoder->Drain(); + + return true; +} + +bool +GMPVideoDecoderChild::RecvDecodingComplete() +{ + MOZ_ASSERT(mPlugin->GMPMessageLoop() == MessageLoop::current()); + + if (mNeedShmemIntrCount) { + // There's a GMP blocked in Alloc() waiting for the CallNeedShem() to + // return a frame they can use. Don't call the GMP's DecodingComplete() + // now and don't delete the GMPVideoDecoderChild, defer processing the + // DecodingComplete() until once the Alloc() finishes. + mPendingDecodeComplete = true; + return true; + } + if (mVideoDecoder) { + // Ignore any return code. It is OK for this to fail without killing the process. + mVideoDecoder->DecodingComplete(); + mVideoDecoder = nullptr; + } + + mVideoHost.DoneWithAPI(); + + mPlugin = nullptr; + + Unused << Send__delete__(this); + + return true; +} + +bool +GMPVideoDecoderChild::Alloc(size_t aSize, + Shmem::SharedMemory::SharedMemoryType aType, + Shmem* aMem) +{ + MOZ_ASSERT(mPlugin->GMPMessageLoop() == MessageLoop::current()); + + bool rv; +#ifndef SHMEM_ALLOC_IN_CHILD + ++mNeedShmemIntrCount; + rv = CallNeedShmem(aSize, aMem); + --mNeedShmemIntrCount; + if (mPendingDecodeComplete && mNeedShmemIntrCount == 0) { + mPendingDecodeComplete = false; + mPlugin->GMPMessageLoop()->PostTask( + NewRunnableMethod(this, &GMPVideoDecoderChild::RecvDecodingComplete)); + } +#else +#ifdef GMP_SAFE_SHMEM + rv = AllocShmem(aSize, aType, aMem); +#else + rv = AllocUnsafeShmem(aSize, aType, aMem); +#endif +#endif + return rv; +} + +void +GMPVideoDecoderChild::Dealloc(Shmem& aMem) +{ +#ifndef SHMEM_ALLOC_IN_CHILD + SendParentShmemForPool(aMem); +#else + DeallocShmem(aMem); +#endif +} + +} // namespace gmp +} // namespace mozilla |