mirror of
https://github.com/mozilla/gecko-dev.git
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367 lines
8.7 KiB
C++
367 lines
8.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "GMPVideoDecoderParent.h"
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#include "prlog.h"
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#include "mozilla/unused.h"
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#include "nsAutoRef.h"
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#include "nsThreadUtils.h"
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#include "GMPVideoEncodedFrameImpl.h"
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#include "GMPVideoi420FrameImpl.h"
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#include "GMPParent.h"
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#include "GMPMessageUtils.h"
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#include "mozilla/gmp/GMPTypes.h"
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namespace mozilla {
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#ifdef LOG
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#undef LOG
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#endif
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#ifdef PR_LOGGING
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extern PRLogModuleInfo* GetGMPLog();
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#define LOGD(msg) PR_LOG(GetGMPLog(), PR_LOG_DEBUG, msg)
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#define LOG(level, msg) PR_LOG(GetGMPLog(), (level), msg)
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#else
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#define LOGD(msg)
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#define LOG(level, msg)
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#endif
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namespace gmp {
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// States:
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// Initial: mIsOpen == false
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// on InitDecode success -> Open
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// on Shutdown -> Dead
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// Open: mIsOpen == true
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// on Close -> Dead
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// on ActorDestroy -> Dead
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// on Shutdown -> Dead
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// Dead: mIsOpen == false
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GMPVideoDecoderParent::GMPVideoDecoderParent(GMPParent* aPlugin)
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: GMPSharedMemManager(aPlugin)
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, mIsOpen(false)
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, mShuttingDown(false)
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, mPlugin(aPlugin)
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, mCallback(nullptr)
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, mVideoHost(MOZ_THIS_IN_INITIALIZER_LIST())
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{
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MOZ_ASSERT(mPlugin);
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}
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GMPVideoDecoderParent::~GMPVideoDecoderParent()
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{
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}
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GMPVideoHostImpl&
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GMPVideoDecoderParent::Host()
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{
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return mVideoHost;
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}
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// Note: may be called via Terminated()
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void
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GMPVideoDecoderParent::Close()
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{
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LOGD(("%s: %p", __FUNCTION__, this));
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MOZ_ASSERT(mPlugin->GMPThread() == NS_GetCurrentThread());
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// Consumer is done with us; we can shut down. No more callbacks should
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// be made to mCallback. Note: do this before Shutdown()!
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mCallback = nullptr;
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// Let Shutdown mark us as dead so it knows if we had been alive
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// In case this is the last reference
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nsRefPtr<GMPVideoDecoderParent> kungfudeathgrip(this);
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Release();
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Shutdown();
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}
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nsresult
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GMPVideoDecoderParent::InitDecode(const GMPVideoCodec& aCodecSettings,
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const nsTArray<uint8_t>& aCodecSpecific,
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GMPVideoDecoderCallbackProxy* aCallback,
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int32_t aCoreCount)
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{
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if (mIsOpen) {
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NS_WARNING("Trying to re-init an in-use GMP video decoder!");
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return NS_ERROR_FAILURE;
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}
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MOZ_ASSERT(mPlugin->GMPThread() == NS_GetCurrentThread());
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if (!aCallback) {
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return NS_ERROR_FAILURE;
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}
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mCallback = aCallback;
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if (!SendInitDecode(aCodecSettings, aCodecSpecific, aCoreCount)) {
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return NS_ERROR_FAILURE;
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}
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mIsOpen = true;
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// Async IPC, we don't have access to a return value.
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return NS_OK;
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}
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nsresult
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GMPVideoDecoderParent::Decode(UniquePtr<GMPVideoEncodedFrame> aInputFrame,
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bool aMissingFrames,
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const nsTArray<uint8_t>& aCodecSpecificInfo,
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int64_t aRenderTimeMs)
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{
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if (!mIsOpen) {
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NS_WARNING("Trying to use an dead GMP video decoder");
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return NS_ERROR_FAILURE;
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}
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MOZ_ASSERT(mPlugin->GMPThread() == NS_GetCurrentThread());
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UniquePtr<GMPVideoEncodedFrameImpl> inputFrameImpl(
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static_cast<GMPVideoEncodedFrameImpl*>(aInputFrame.release()));
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// Very rough kill-switch if the plugin stops processing. If it's merely
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// hung and continues, we'll come back to life eventually.
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// 3* is because we're using 3 buffers per frame for i420 data for now.
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if ((NumInUse(GMPSharedMem::kGMPFrameData) > 3*GMPSharedMem::kGMPBufLimit) ||
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(NumInUse(GMPSharedMem::kGMPEncodedData) > GMPSharedMem::kGMPBufLimit)) {
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return NS_ERROR_FAILURE;
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}
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GMPVideoEncodedFrameData frameData;
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inputFrameImpl->RelinquishFrameData(frameData);
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if (!SendDecode(frameData,
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aMissingFrames,
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aCodecSpecificInfo,
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aRenderTimeMs)) {
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return NS_ERROR_FAILURE;
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}
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// Async IPC, we don't have access to a return value.
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return NS_OK;
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}
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nsresult
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GMPVideoDecoderParent::Reset()
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{
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if (!mIsOpen) {
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NS_WARNING("Trying to use an dead GMP video decoder");
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return NS_ERROR_FAILURE;
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}
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MOZ_ASSERT(mPlugin->GMPThread() == NS_GetCurrentThread());
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if (!SendReset()) {
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return NS_ERROR_FAILURE;
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}
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// Async IPC, we don't have access to a return value.
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return NS_OK;
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}
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nsresult
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GMPVideoDecoderParent::Drain()
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{
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if (!mIsOpen) {
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NS_WARNING("Trying to use an dead GMP video decoder");
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return NS_ERROR_FAILURE;
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}
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MOZ_ASSERT(mPlugin->GMPThread() == NS_GetCurrentThread());
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if (!SendDrain()) {
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return NS_ERROR_FAILURE;
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}
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// Async IPC, we don't have access to a return value.
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return NS_OK;
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}
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// Note: Consider keeping ActorDestroy sync'd up when making changes here.
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nsresult
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GMPVideoDecoderParent::Shutdown()
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{
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LOGD(("%s: %p", __FUNCTION__, this));
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MOZ_ASSERT(mPlugin->GMPThread() == NS_GetCurrentThread());
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if (mShuttingDown) {
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return NS_OK;
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}
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mShuttingDown = true;
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// Notify client we're gone! Won't occur after Close()
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if (mCallback) {
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mCallback->Terminated();
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mCallback = nullptr;
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}
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mVideoHost.DoneWithAPI();
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mIsOpen = false;
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unused << SendDecodingComplete();
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return NS_OK;
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}
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// Note: Keep this sync'd up with Shutdown
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void
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GMPVideoDecoderParent::ActorDestroy(ActorDestroyReason aWhy)
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{
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mIsOpen = false;
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if (mCallback) {
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// May call Close() (and Shutdown()) immediately or with a delay
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mCallback->Terminated();
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mCallback = nullptr;
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}
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if (mPlugin) {
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// Ignore any return code. It is OK for this to fail without killing the process.
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mPlugin->VideoDecoderDestroyed(this);
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mPlugin = nullptr;
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}
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mVideoHost.ActorDestroyed();
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}
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bool
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GMPVideoDecoderParent::RecvDecoded(const GMPVideoi420FrameData& aDecodedFrame)
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{
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if (!mCallback) {
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return false;
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}
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if (!GMPVideoi420FrameImpl::CheckFrameData(aDecodedFrame)) {
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LOG(PR_LOG_ERROR, ("%s: Decoded frame corrupt, ignoring", __FUNCTION__));
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return false;
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}
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auto f = new GMPVideoi420FrameImpl(aDecodedFrame, &mVideoHost);
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// Ignore any return code. It is OK for this to fail without killing the process.
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mCallback->Decoded(f);
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return true;
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}
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bool
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GMPVideoDecoderParent::RecvReceivedDecodedReferenceFrame(const uint64_t& aPictureId)
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{
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if (!mCallback) {
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return false;
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}
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// Ignore any return code. It is OK for this to fail without killing the process.
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mCallback->ReceivedDecodedReferenceFrame(aPictureId);
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return true;
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}
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bool
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GMPVideoDecoderParent::RecvReceivedDecodedFrame(const uint64_t& aPictureId)
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{
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if (!mCallback) {
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return false;
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}
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// Ignore any return code. It is OK for this to fail without killing the process.
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mCallback->ReceivedDecodedFrame(aPictureId);
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return true;
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}
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bool
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GMPVideoDecoderParent::RecvInputDataExhausted()
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{
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if (!mCallback) {
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return false;
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}
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// Ignore any return code. It is OK for this to fail without killing the process.
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mCallback->InputDataExhausted();
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return true;
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}
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bool
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GMPVideoDecoderParent::RecvDrainComplete()
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{
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if (!mCallback) {
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return false;
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}
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// Ignore any return code. It is OK for this to fail without killing the process.
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mCallback->DrainComplete();
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return true;
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}
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bool
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GMPVideoDecoderParent::RecvResetComplete()
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{
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if (!mCallback) {
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return false;
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}
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// Ignore any return code. It is OK for this to fail without killing the process.
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mCallback->ResetComplete();
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return true;
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}
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bool
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GMPVideoDecoderParent::RecvError(const GMPErr& aError)
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{
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if (!mCallback) {
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return false;
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}
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// Ignore any return code. It is OK for this to fail without killing the process.
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mCallback->Error(aError);
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return true;
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}
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bool
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GMPVideoDecoderParent::RecvParentShmemForPool(Shmem& aEncodedBuffer)
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{
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if (aEncodedBuffer.IsWritable()) {
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mVideoHost.SharedMemMgr()->MgrDeallocShmem(GMPSharedMem::kGMPEncodedData,
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aEncodedBuffer);
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}
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return true;
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}
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bool
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GMPVideoDecoderParent::AnswerNeedShmem(const uint32_t& aFrameBufferSize,
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Shmem* aMem)
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{
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ipc::Shmem mem;
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if (!mVideoHost.SharedMemMgr()->MgrAllocShmem(GMPSharedMem::kGMPFrameData,
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aFrameBufferSize,
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ipc::SharedMemory::TYPE_BASIC, &mem))
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{
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LOG(PR_LOG_ERROR, ("%s: Failed to get a shared mem buffer for Child! size %u",
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__FUNCTION__, aFrameBufferSize));
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return false;
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}
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*aMem = mem;
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mem = ipc::Shmem();
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return true;
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}
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bool
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GMPVideoDecoderParent::Recv__delete__()
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{
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if (mPlugin) {
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// Ignore any return code. It is OK for this to fail without killing the process.
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mPlugin->VideoDecoderDestroyed(this);
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mPlugin = nullptr;
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}
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return true;
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}
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} // namespace gmp
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} // namespace mozilla
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