mirror of
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138 lines
4.3 KiB
C++
138 lines
4.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 sts=2 et sw=2 tw=80: */
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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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#ifndef _include_ipc_glue_UtilityAudioDecoderChild_h__
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#define _include_ipc_glue_UtilityAudioDecoderChild_h__
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#include "mozilla/ProcInfo.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/ipc/Endpoint.h"
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#include "mozilla/ipc/UtilityProcessParent.h"
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#include "mozilla/ipc/UtilityProcessSandboxing.h"
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#include "mozilla/ipc/PUtilityAudioDecoderChild.h"
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#ifdef MOZ_WMF_MEDIA_ENGINE
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# include "mozilla/gfx/GPUProcessListener.h"
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# include "mozilla/gfx/gfxVarReceiver.h"
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#endif
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#include "PDMFactory.h"
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namespace mozilla::ipc {
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class UtilityAudioDecoderChildShutdownObserver : public nsIObserver {
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public:
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explicit UtilityAudioDecoderChildShutdownObserver(SandboxingKind aKind)
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: mSandbox(aKind){};
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NS_DECL_ISUPPORTS
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NS_IMETHOD Observe(nsISupports* aSubject, const char* aTopic,
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const char16_t* aData) override;
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private:
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virtual ~UtilityAudioDecoderChildShutdownObserver() = default;
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const SandboxingKind mSandbox;
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};
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// This controls performing audio decoding on the utility process and it is
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// intended to live on the main process side
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class UtilityAudioDecoderChild final : public PUtilityAudioDecoderChild
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#ifdef MOZ_WMF_MEDIA_ENGINE
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,
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public gfx::gfxVarReceiver,
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public gfx::GPUProcessListener
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#endif
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{
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(UtilityAudioDecoderChild, override);
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mozilla::ipc::IPCResult RecvUpdateMediaCodecsSupported(
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const RemoteDecodeIn& aLocation,
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const media::MediaCodecsSupported& aSupported);
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UtilityActorName GetActorName() {
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switch (mSandbox) {
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case GENERIC_UTILITY:
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return UtilityActorName::AudioDecoder_Generic;
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#ifdef MOZ_APPLEMEDIA
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case UTILITY_AUDIO_DECODING_APPLE_MEDIA:
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return UtilityActorName::AudioDecoder_AppleMedia;
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#endif
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#ifdef XP_WIN
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case UTILITY_AUDIO_DECODING_WMF:
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return UtilityActorName::AudioDecoder_WMF;
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#endif
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#ifdef MOZ_WMF_MEDIA_ENGINE
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case MF_MEDIA_ENGINE_CDM:
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return UtilityActorName::MfMediaEngineCDM;
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#endif
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default:
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MOZ_CRASH("Unexpected mSandbox for GetActorName()");
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}
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}
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nsresult BindToUtilityProcess(RefPtr<UtilityProcessParent> aUtilityParent) {
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Endpoint<PUtilityAudioDecoderChild> utilityAudioDecoderChildEnd;
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Endpoint<PUtilityAudioDecoderParent> utilityAudioDecoderParentEnd;
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nsresult rv = PUtilityAudioDecoder::CreateEndpoints(
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aUtilityParent->OtherPid(), base::GetCurrentProcId(),
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&utilityAudioDecoderParentEnd, &utilityAudioDecoderChildEnd);
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if (NS_FAILED(rv)) {
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MOZ_ASSERT(false, "Protocol endpoints failure");
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return NS_ERROR_FAILURE;
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}
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if (!aUtilityParent->SendStartUtilityAudioDecoderService(
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std::move(utilityAudioDecoderParentEnd))) {
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MOZ_ASSERT(false, "StartUtilityAudioDecoder service failure");
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return NS_ERROR_FAILURE;
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}
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Bind(std::move(utilityAudioDecoderChildEnd));
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return NS_OK;
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}
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void ActorDestroy(ActorDestroyReason aReason) override;
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void Bind(Endpoint<PUtilityAudioDecoderChild>&& aEndpoint);
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static void Shutdown(SandboxingKind aKind);
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static RefPtr<UtilityAudioDecoderChild> GetSingleton(SandboxingKind aKind);
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#ifdef MOZ_WMF_MEDIA_ENGINE
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mozilla::ipc::IPCResult RecvCompleteCreatedVideoBridge();
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bool HasCreatedVideoBridge() const;
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void OnVarChanged(const gfx::GfxVarUpdate& aVar) override;
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void OnCompositorUnexpectedShutdown() override;
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// True if creating a video bridge sucessfully. Currently only used for media
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// engine cdm.
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bool CreateVideoBridge();
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#endif
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private:
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explicit UtilityAudioDecoderChild(SandboxingKind aKind);
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~UtilityAudioDecoderChild() = default;
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const SandboxingKind mSandbox;
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#ifdef MOZ_WMF_MEDIA_ENGINE
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// True if the utility process has created a video bridge with the GPU prcess.
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// Currently only used for media egine cdm. Main thread only.
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bool mHasCreatedVideoBridge = false;
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#endif
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};
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} // namespace mozilla::ipc
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#endif // _include_ipc_glue_UtilityAudioDecoderChild_h__
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