LCOV - code coverage report
Current view: top level - dom/media/ipc - VideoDecoderParent.cpp (source / functions) Hit Total Coverage
Test: output.info Lines: 0 138 0.0 %
Date: 2017-07-14 16:53:18 Functions: 0 45 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /* vim: set ts=8 sts=2 et sw=2 tw=99: */
       3             : /* This Source Code Form is subject to the terms of the Mozilla Public
       4             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       5             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       6             : #include "VideoDecoderParent.h"
       7             : #include "mozilla/Unused.h"
       8             : #include "mozilla/layers/CompositorThread.h"
       9             : #include "base/thread.h"
      10             : #include "mozilla/layers/TextureClient.h"
      11             : #include "mozilla/layers/VideoBridgeChild.h"
      12             : #include "mozilla/layers/ImageClient.h"
      13             : #include "MediaInfo.h"
      14             : #include "VideoDecoderManagerParent.h"
      15             : #ifdef XP_WIN
      16             : #include "WMFDecoderModule.h"
      17             : #endif
      18             : 
      19             : namespace mozilla {
      20             : namespace dom {
      21             : 
      22             : using base::Thread;
      23             : using media::TimeUnit;
      24             : using namespace ipc;
      25             : using namespace layers;
      26             : using namespace gfx;
      27             : 
      28           0 : class KnowsCompositorVideo : public layers::KnowsCompositor
      29             : {
      30             : public:
      31           0 :   NS_INLINE_DECL_THREADSAFE_REFCOUNTING(KnowsCompositorVideo, override)
      32             : 
      33           0 :   layers::TextureForwarder* GetTextureForwarder() override
      34             :   {
      35           0 :     return VideoBridgeChild::GetSingleton();
      36             :   }
      37           0 :   layers::LayersIPCActor* GetLayersIPCActor() override
      38             :   {
      39           0 :     return VideoBridgeChild::GetSingleton();
      40             :   }
      41             : private:
      42           0 :   virtual ~KnowsCompositorVideo() = default;
      43             : };
      44             : 
      45           0 : VideoDecoderParent::VideoDecoderParent(VideoDecoderManagerParent* aParent,
      46             :                                        const VideoInfo& aVideoInfo,
      47             :                                        const layers::TextureFactoryIdentifier& aIdentifier,
      48             :                                        TaskQueue* aManagerTaskQueue,
      49             :                                        TaskQueue* aDecodeTaskQueue,
      50           0 :                                        bool* aSuccess)
      51             :   : mParent(aParent)
      52             :   , mManagerTaskQueue(aManagerTaskQueue)
      53             :   , mDecodeTaskQueue(aDecodeTaskQueue)
      54           0 :   , mKnowsCompositor(new KnowsCompositorVideo)
      55           0 :   , mDestroyed(false)
      56             : {
      57           0 :   MOZ_COUNT_CTOR(VideoDecoderParent);
      58           0 :   MOZ_ASSERT(OnManagerThread());
      59             :   // We hold a reference to ourselves to keep us alive until IPDL
      60             :   // explictly destroys us. There may still be refs held by
      61             :   // tasks, but no new ones should be added after we're
      62             :   // destroyed.
      63           0 :   mIPDLSelfRef = this;
      64             : 
      65           0 :   mKnowsCompositor->IdentifyTextureHost(aIdentifier);
      66             : 
      67             : #ifdef XP_WIN
      68             :   // TODO: Ideally we wouldn't hardcode the WMF PDM, and we'd use the normal PDM
      69             :   // factory logic for picking a decoder.
      70             :   WMFDecoderModule::Init();
      71             :   RefPtr<WMFDecoderModule> pdm(new WMFDecoderModule());
      72             :   pdm->Startup();
      73             : 
      74             :   CreateDecoderParams params(aVideoInfo);
      75             :   params.mTaskQueue = mDecodeTaskQueue;
      76             :   params.mKnowsCompositor = mKnowsCompositor;
      77             :   params.mImageContainer = new layers::ImageContainer();
      78             : 
      79             :   mDecoder = pdm->CreateVideoDecoder(params);
      80             : #else
      81           0 :   MOZ_ASSERT(false,
      82             :              "Can't use RemoteVideoDecoder on non-Windows platforms yet");
      83             : #endif
      84             : 
      85             :   *aSuccess = !!mDecoder;
      86             : }
      87             : 
      88           0 : VideoDecoderParent::~VideoDecoderParent()
      89             : {
      90           0 :   MOZ_COUNT_DTOR(VideoDecoderParent);
      91           0 : }
      92             : 
      93             : void
      94           0 : VideoDecoderParent::Destroy()
      95             : {
      96           0 :   MOZ_ASSERT(OnManagerThread());
      97           0 :   mDecodeTaskQueue->AwaitShutdownAndIdle();
      98           0 :   mDestroyed = true;
      99           0 :   mIPDLSelfRef = nullptr;
     100           0 : }
     101             : 
     102             : mozilla::ipc::IPCResult
     103           0 : VideoDecoderParent::RecvInit()
     104             : {
     105           0 :   MOZ_ASSERT(OnManagerThread());
     106           0 :   RefPtr<VideoDecoderParent> self = this;
     107           0 :   mDecoder->Init()->Then(mManagerTaskQueue, __func__,
     108           0 :     [self] (TrackInfo::TrackType aTrack) {
     109           0 :       if (self->mDecoder) {
     110           0 :         nsCString hardwareReason;
     111             :         bool hardwareAccelerated =
     112           0 :           self->mDecoder->IsHardwareAccelerated(hardwareReason);
     113             :         uint32_t conversion =
     114           0 :           static_cast<uint32_t>(self->mDecoder->NeedsConversion());
     115           0 :         Unused << self->SendInitComplete(
     116             :           hardwareAccelerated, hardwareReason, conversion);
     117             :       }
     118           0 :     },
     119           0 :     [self] (MediaResult aReason) {
     120           0 :       if (!self->mDestroyed) {
     121           0 :         Unused << self->SendInitFailed(aReason);
     122             :       }
     123           0 :     });
     124           0 :   return IPC_OK();
     125             : }
     126             : 
     127             : mozilla::ipc::IPCResult
     128           0 : VideoDecoderParent::RecvInput(const MediaRawDataIPDL& aData)
     129             : {
     130           0 :   MOZ_ASSERT(OnManagerThread());
     131             :   // XXX: This copies the data into a buffer owned by the MediaRawData. Ideally
     132             :   // we'd just take ownership of the shmem.
     133           0 :   RefPtr<MediaRawData> data = new MediaRawData(aData.buffer().get<uint8_t>(),
     134           0 :                                                aData.buffer().Size<uint8_t>());
     135           0 :   if (aData.buffer().Size<uint8_t>() && !data->Data()) {
     136             :     // OOM
     137           0 :     Error(NS_ERROR_OUT_OF_MEMORY);
     138           0 :     return IPC_OK();
     139             :   }
     140           0 :   data->mOffset = aData.base().offset();
     141           0 :   data->mTime = TimeUnit::FromMicroseconds(aData.base().time());
     142           0 :   data->mTimecode = TimeUnit::FromMicroseconds(aData.base().timecode());
     143           0 :   data->mDuration = TimeUnit::FromMicroseconds(aData.base().duration());
     144           0 :   data->mKeyframe = aData.base().keyframe();
     145             : 
     146           0 :   DeallocShmem(aData.buffer());
     147             : 
     148           0 :   RefPtr<VideoDecoderParent> self = this;
     149           0 :   mDecoder->Decode(data)->Then(
     150             :     mManagerTaskQueue, __func__,
     151           0 :     [self, this](const MediaDataDecoder::DecodedData& aResults) {
     152           0 :       if (mDestroyed) {
     153           0 :         return;
     154             :       }
     155           0 :       ProcessDecodedData(aResults);
     156           0 :       Unused << SendInputExhausted();
     157             :     },
     158           0 :     [self, this](const MediaResult& aError) { Error(aError); });
     159           0 :   return IPC_OK();
     160             : }
     161             : 
     162             : void
     163           0 : VideoDecoderParent::ProcessDecodedData(
     164             :   const MediaDataDecoder::DecodedData& aData)
     165             : {
     166           0 :   MOZ_ASSERT(OnManagerThread());
     167             : 
     168             :   // If the video decoder bridge has shut down, stop.
     169           0 :   if (!mKnowsCompositor->GetTextureForwarder()) {
     170           0 :     return;
     171             :   }
     172             : 
     173           0 :   for (const auto& data : aData) {
     174           0 :     MOZ_ASSERT(data->mType == MediaData::VIDEO_DATA,
     175             :                 "Can only decode videos using VideoDecoderParent!");
     176           0 :     VideoData* video = static_cast<VideoData*>(data.get());
     177             : 
     178           0 :     MOZ_ASSERT(video->mImage, "Decoded video must output a layer::Image to "
     179             :                               "be used with VideoDecoderParent");
     180             : 
     181             :     RefPtr<TextureClient> texture =
     182           0 :       video->mImage->GetTextureClient(mKnowsCompositor);
     183             : 
     184           0 :     if (!texture) {
     185           0 :       texture = ImageClient::CreateTextureClientForImage(video->mImage,
     186           0 :                                                           mKnowsCompositor);
     187             :     }
     188             : 
     189           0 :     if (texture && !texture->IsAddedToCompositableClient()) {
     190           0 :       texture->InitIPDLActor(mKnowsCompositor);
     191           0 :       texture->SetAddedToCompositableClient();
     192             :     }
     193             : 
     194             :     VideoDataIPDL output(
     195           0 :       MediaDataIPDL(data->mOffset, data->mTime.ToMicroseconds(),
     196           0 :                     data->mTimecode.ToMicroseconds(),
     197           0 :                     data->mDuration.ToMicroseconds(),
     198           0 :                     data->mFrames, data->mKeyframe),
     199             :       video->mDisplay,
     200           0 :       texture ? texture->GetSize() : IntSize(),
     201           0 :       texture ? mParent->StoreImage(video->mImage, texture)
     202           0 :               : SurfaceDescriptorGPUVideo(0),
     203           0 :       video->mFrameID);
     204           0 :     Unused << SendOutput(output);
     205             :   }
     206             : }
     207             : 
     208             : mozilla::ipc::IPCResult
     209           0 : VideoDecoderParent::RecvFlush()
     210             : {
     211           0 :   MOZ_ASSERT(!mDestroyed);
     212           0 :   MOZ_ASSERT(OnManagerThread());
     213           0 :   RefPtr<VideoDecoderParent> self = this;
     214           0 :   mDecoder->Flush()->Then(
     215             :     mManagerTaskQueue, __func__,
     216           0 :     [self, this]() {
     217           0 :       if (!mDestroyed) {
     218           0 :         Unused << SendFlushComplete();
     219             :       }
     220           0 :     },
     221           0 :     [self, this](const MediaResult& aError) { Error(aError); });
     222             : 
     223           0 :   return IPC_OK();
     224             : }
     225             : 
     226             : mozilla::ipc::IPCResult
     227           0 : VideoDecoderParent::RecvDrain()
     228             : {
     229           0 :   MOZ_ASSERT(!mDestroyed);
     230           0 :   MOZ_ASSERT(OnManagerThread());
     231           0 :   RefPtr<VideoDecoderParent> self = this;
     232           0 :   mDecoder->Drain()->Then(
     233             :     mManagerTaskQueue, __func__,
     234           0 :     [self, this](const MediaDataDecoder::DecodedData& aResults) {
     235           0 :       if (!mDestroyed) {
     236           0 :         ProcessDecodedData(aResults);
     237           0 :         Unused << SendDrainComplete();
     238             :       }
     239           0 :     },
     240           0 :     [self, this](const MediaResult& aError) { Error(aError); });
     241           0 :   return IPC_OK();
     242             : }
     243             : 
     244             : mozilla::ipc::IPCResult
     245           0 : VideoDecoderParent::RecvShutdown()
     246             : {
     247           0 :   MOZ_ASSERT(!mDestroyed);
     248           0 :   MOZ_ASSERT(OnManagerThread());
     249           0 :   if (mDecoder) {
     250           0 :     mDecoder->Shutdown();
     251             :   }
     252           0 :   mDecoder = nullptr;
     253           0 :   return IPC_OK();
     254             : }
     255             : 
     256             : mozilla::ipc::IPCResult
     257           0 : VideoDecoderParent::RecvSetSeekThreshold(const int64_t& aTime)
     258             : {
     259           0 :   MOZ_ASSERT(!mDestroyed);
     260           0 :   MOZ_ASSERT(OnManagerThread());
     261           0 :   mDecoder->SetSeekThreshold(TimeUnit::FromMicroseconds(aTime));
     262           0 :   return IPC_OK();
     263             : }
     264             : 
     265             : void
     266           0 : VideoDecoderParent::ActorDestroy(ActorDestroyReason aWhy)
     267             : {
     268           0 :   MOZ_ASSERT(!mDestroyed);
     269           0 :   MOZ_ASSERT(OnManagerThread());
     270           0 :   if (mDecoder) {
     271           0 :     mDecoder->Shutdown();
     272           0 :     mDecoder = nullptr;
     273             :   }
     274           0 :   if (mDecodeTaskQueue) {
     275           0 :     mDecodeTaskQueue->BeginShutdown();
     276             :   }
     277           0 : }
     278             : 
     279             : void
     280           0 : VideoDecoderParent::Error(const MediaResult& aError)
     281             : {
     282           0 :   MOZ_ASSERT(OnManagerThread());
     283           0 :   if (!mDestroyed) {
     284           0 :     Unused << SendError(aError);
     285             :   }
     286           0 : }
     287             : 
     288             : bool
     289           0 : VideoDecoderParent::OnManagerThread()
     290             : {
     291           0 :   return mParent->OnManagerThread();
     292             : }
     293             : 
     294             : } // namespace dom
     295             : } // namespace mozilla

Generated by: LCOV version 1.13