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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef _include_ipc_glue_UtilityAudioDecoderChild_h__
#define _include_ipc_glue_UtilityAudioDecoderChild_h__
#include "mozilla/ProcInfo.h"
#include "mozilla/RefPtr.h"
#include "mozilla/ipc/Endpoint.h"
#include "mozilla/ipc/UtilityProcessParent.h"
#include "mozilla/ipc/UtilityProcessSandboxing.h"
#include "mozilla/ipc/PUtilityAudioDecoderChild.h"
#ifdef MOZ_WMF_MEDIA_ENGINE
# include "mozilla/gfx/GPUProcessListener.h"
# include "mozilla/gfx/gfxVarReceiver.h"
#endif
#include "PDMFactory.h"
namespace mozilla::ipc {
class UtilityAudioDecoderChildShutdownObserver : public nsIObserver {
public:
explicit UtilityAudioDecoderChildShutdownObserver(SandboxingKind aKind)
: mSandbox(aKind){};
NS_DECL_ISUPPORTS
NS_IMETHOD Observe(nsISupports* aSubject, const char* aTopic,
const char16_t* aData) override;
private:
virtual ~UtilityAudioDecoderChildShutdownObserver() = default;
const SandboxingKind mSandbox;
};
// This controls performing audio decoding on the utility process and it is
// intended to live on the main process side
class UtilityAudioDecoderChild final : public PUtilityAudioDecoderChild
#ifdef MOZ_WMF_MEDIA_ENGINE
,
public gfx::gfxVarReceiver,
public gfx::GPUProcessListener
#endif
{
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(UtilityAudioDecoderChild, override);
mozilla::ipc::IPCResult RecvUpdateMediaCodecsSupported(
const RemoteDecodeIn& aLocation,
const media::MediaCodecsSupported& aSupported);
UtilityActorName GetActorName() {
switch (mSandbox) {
case GENERIC_UTILITY:
return UtilityActorName::AudioDecoder_Generic;
#ifdef MOZ_APPLEMEDIA
case UTILITY_AUDIO_DECODING_APPLE_MEDIA:
return UtilityActorName::AudioDecoder_AppleMedia;
#endif
#ifdef XP_WIN
case UTILITY_AUDIO_DECODING_WMF:
return UtilityActorName::AudioDecoder_WMF;
#endif
#ifdef MOZ_WMF_MEDIA_ENGINE
case MF_MEDIA_ENGINE_CDM:
return UtilityActorName::MfMediaEngineCDM;
#endif
default:
MOZ_CRASH("Unexpected mSandbox for GetActorName()");
}
}
nsresult BindToUtilityProcess(RefPtr<UtilityProcessParent> aUtilityParent) {
Endpoint<PUtilityAudioDecoderChild> utilityAudioDecoderChildEnd;
Endpoint<PUtilityAudioDecoderParent> utilityAudioDecoderParentEnd;
nsresult rv = PUtilityAudioDecoder::CreateEndpoints(
aUtilityParent->OtherPid(), base::GetCurrentProcId(),
&utilityAudioDecoderParentEnd, &utilityAudioDecoderChildEnd);
if (NS_FAILED(rv)) {
MOZ_ASSERT(false, "Protocol endpoints failure");
return NS_ERROR_FAILURE;
}
if (!aUtilityParent->SendStartUtilityAudioDecoderService(
std::move(utilityAudioDecoderParentEnd))) {
MOZ_ASSERT(false, "StartUtilityAudioDecoder service failure");
return NS_ERROR_FAILURE;
}
Bind(std::move(utilityAudioDecoderChildEnd));
return NS_OK;
}
void ActorDestroy(ActorDestroyReason aReason) override;
void Bind(Endpoint<PUtilityAudioDecoderChild>&& aEndpoint);
static void Shutdown(SandboxingKind aKind);
static RefPtr<UtilityAudioDecoderChild> GetSingleton(SandboxingKind aKind);
#ifdef MOZ_WMF_MEDIA_ENGINE
mozilla::ipc::IPCResult RecvCompleteCreatedVideoBridge();
bool HasCreatedVideoBridge() const;
void OnVarChanged(const gfx::GfxVarUpdate& aVar) override;
void OnCompositorUnexpectedShutdown() override;
// True if creating a video bridge sucessfully. Currently only used for media
// engine cdm.
bool CreateVideoBridge();
#endif
private:
explicit UtilityAudioDecoderChild(SandboxingKind aKind);
~UtilityAudioDecoderChild() = default;
const SandboxingKind mSandbox;
#ifdef MOZ_WMF_MEDIA_ENGINE
// True if the utility process has created a video bridge with the GPU prcess.
// Currently only used for media egine cdm. Main thread only.
bool mHasCreatedVideoBridge = false;
#endif
};
} // namespace mozilla::ipc
#endif // _include_ipc_glue_UtilityAudioDecoderChild_h__
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