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The Tor Browser
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GMPVideoDecoderChild.h (2617B)

      1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* This Source Code Form is subject to the terms of the Mozilla Public
      3 * License, v. 2.0. If a copy of the MPL was not distributed with this
      4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      5 
      6 #ifndef GMPVideoDecoderChild_h_
      7 #define GMPVideoDecoderChild_h_
      8 
      9 #include "GMPSharedMemManager.h"
     10 #include "GMPVideoHost.h"
     11 #include "gmp-video-decode.h"
     12 #include "mozilla/gmp/GMPTypes.h"
     13 #include "mozilla/gmp/PGMPVideoDecoderChild.h"
     14 #include "nsString.h"
     15 
     16 namespace mozilla::gmp {
     17 
     18 class GMPContentChild;
     19 
     20 class GMPVideoDecoderChild final : public PGMPVideoDecoderChild,
     21                                   public GMPVideoDecoderCallback,
     22                                   public GMPSharedMemManager {
     23  friend class PGMPVideoDecoderChild;
     24 
     25 public:
     26  // Mark AddRef and Release as `final`, as they overload pure virtual
     27  // implementations in PGMPVideoDecoderChild.
     28  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(GMPVideoDecoderChild, final);
     29 
     30  explicit GMPVideoDecoderChild(GMPContentChild* aPlugin);
     31 
     32  void Init(GMPVideoDecoder* aDecoder);
     33  GMPVideoHostImpl& Host();
     34 
     35  // GMPVideoDecoderCallback
     36  void Decoded(GMPVideoi420Frame* decodedFrame) override;
     37  void ReceivedDecodedReferenceFrame(const uint64_t pictureId) override;
     38  void ReceivedDecodedFrame(const uint64_t pictureId) override;
     39  void InputDataExhausted() override;
     40  void DrainComplete() override;
     41  void ResetComplete() override;
     42  void Error(GMPErr aError) override;
     43 
     44  // GMPSharedMemManager
     45  bool MgrIsOnOwningThread() const override;
     46  void MgrDeallocShmem(Shmem& aMem) override { DeallocShmem(aMem); }
     47 
     48 private:
     49  virtual ~GMPVideoDecoderChild();
     50 
     51  // PGMPVideoDecoderChild
     52  mozilla::ipc::IPCResult RecvInitDecode(const GMPVideoCodec& aCodecSettings,
     53                                         nsTArray<uint8_t>&& aCodecSpecific,
     54                                         const int32_t& aCoreCount);
     55  mozilla::ipc::IPCResult RecvGiveShmem(ipc::Shmem&& aOutputShmem);
     56  mozilla::ipc::IPCResult RecvDecode(
     57      const GMPVideoEncodedFrameData& aInputFrame, ipc::Shmem&& aInputShmem,
     58      const bool& aMissingFrames, nsTArray<uint8_t>&& aCodecSpecificInfo,
     59      const int64_t& aRenderTimeMs);
     60  mozilla::ipc::IPCResult RecvReset();
     61  mozilla::ipc::IPCResult RecvDrain();
     62  void ActorDestroy(ActorDestroyReason why) override;
     63 
     64  GMPContentChild* mPlugin;
     65  GMPVideoDecoder* mVideoDecoder;
     66  GMPVideoHostImpl mVideoHost;
     67  bool mOutstandingDrain = false;
     68  bool mOutstandingReset = false;
     69 };
     70 
     71 }  // namespace mozilla::gmp
     72 
     73 #endif  // GMPVideoDecoderChild_h_