dom/media/ipc/RemoteVideoDecoder.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   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 #ifndef include_dom_media_ipc_RemoteVideoDecoderChild_h
   7 #define include_dom_media_ipc_RemoteVideoDecoderChild_h
   8 #include "RemoteDecoderChild.h"
   9 #include "RemoteDecoderManagerChild.h"
  10 #include "RemoteDecoderParent.h"
  11
  12 namespace mozilla::layers {
  13 class BufferRecycleBin;
  14 }  // namespace mozilla::layers
  15
  16 namespace mozilla {
  17
  18 class KnowsCompositorVideo : public layers::KnowsCompositor {
  19  public:
  20   NS_INLINE_DECL_THREADSAFE_REFCOUNTING(KnowsCompositorVideo, override)
  21
  22   layers::TextureForwarder* GetTextureForwarder() override;
  23   layers::LayersIPCActor* GetLayersIPCActor() override;
  24
  25   static already_AddRefed<KnowsCompositorVideo> TryCreateForIdentifier(
  26       const layers::TextureFactoryIdentifier& aIdentifier);
  27
  28  private:
  29   KnowsCompositorVideo() = default;
  30   virtual ~KnowsCompositorVideo() = default;
  31 };
  32
  33 using mozilla::ipc::IPCResult;
  34
  35 class RemoteVideoDecoderChild : public RemoteDecoderChild {
  36  public:
  37   explicit RemoteVideoDecoderChild(RemoteDecodeIn aLocation);
  38
  39   MOZ_IS_CLASS_INIT MediaResult
  40   InitIPDL(const VideoInfo& aVideoInfo, float aFramerate,
  41            const CreateDecoderParams::OptionSet& aOptions,
  42            mozilla::Maybe<layers::TextureFactoryIdentifier> aIdentifier,
  43            const Maybe<uint64_t>& aMediaEngineId,
  44            const Maybe<TrackingId>& aTrackingId);
  45
  46   MediaResult ProcessOutput(DecodedOutputIPDL&& aDecodedData) override;
  47
  48  private:
  49   RefPtr<mozilla::layers::BufferRecycleBin> mBufferRecycleBin;
  50 };
  51
  52 class RemoteVideoDecoderParent final : public RemoteDecoderParent {
  53  public:
  54   RemoteVideoDecoderParent(
  55       RemoteDecoderManagerParent* aParent, const VideoInfo& aVideoInfo,
  56       float aFramerate, const CreateDecoderParams::OptionSet& aOptions,
  57       const Maybe<layers::TextureFactoryIdentifier>& aIdentifier,
  58       nsISerialEventTarget* aManagerThread, TaskQueue* aDecodeTaskQueue,
  59       const Maybe<uint64_t>& aMediaEngineId, Maybe<TrackingId> aTrackingId);
  60
  61  protected:
  62   IPCResult RecvConstruct(ConstructResolver&& aResolver) override;
  63
  64   MediaResult ProcessDecodedData(MediaDataDecoder::DecodedData&& aData,
  65                                  DecodedOutputIPDL& aDecodedData) override;
  66
  67  private:
  68   // Can only be accessed from the manager thread
  69   // Note: we can't keep a reference to the original VideoInfo here
  70   // because unlike in typical MediaDataDecoder situations, we're being
  71   // passed a deserialized VideoInfo from RecvPRemoteDecoderConstructor
  72   // which is destroyed when RecvPRemoteDecoderConstructor returns.
  73   const VideoInfo mVideoInfo;
  74   const float mFramerate;
  75   RefPtr<KnowsCompositorVideo> mKnowsCompositor;
  76 };
  77
  78 }  // namespace mozilla
  79
  80 #endif  // include_dom_media_ipc_RemoteVideoDecoderChild_h