Source code
Revision control
Copy as Markdown
Other Tools
/* -*- 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
#include "UtilityAudioDecoderChild.h"
#include "base/basictypes.h"
#include "mozilla/AppShutdown.h"
#include "mozilla/dom/ContentParent.h"
#ifdef MOZ_WMF_MEDIA_ENGINE
# include "mozilla/StaticPrefs_media.h"
# include "mozilla/gfx/GPUProcessManager.h"
# include "mozilla/gfx/gfxVars.h"
# include "mozilla/ipc/UtilityProcessManager.h"
# include "mozilla/layers/PVideoBridge.h"
# include "mozilla/layers/VideoBridgeUtils.h"
#endif
#ifdef MOZ_WMF_CDM
# include "mozilla/dom/Promise.h"
# include "mozilla/EMEUtils.h"
# include "mozilla/PMFCDM.h"
#endif
namespace mozilla::ipc {
NS_IMETHODIMP UtilityAudioDecoderChildShutdownObserver::Observe(
nsISupports* aSubject, const char* aTopic, const char16_t* aData) {
MOZ_ASSERT(strcmp(aTopic, "ipc:utility-shutdown") == 0);
nsCOMPtr<nsIObserverService> observerService = services::GetObserverService();
if (observerService) {
observerService->RemoveObserver(this, "ipc:utility-shutdown");
}
UtilityAudioDecoderChild::Shutdown(mSandbox);
return NS_OK;
}
NS_IMPL_ISUPPORTS(UtilityAudioDecoderChildShutdownObserver, nsIObserver);
static EnumeratedArray<SandboxingKind, StaticRefPtr<UtilityAudioDecoderChild>,
size_t(SandboxingKind::COUNT)>
sAudioDecoderChilds;
UtilityAudioDecoderChild::UtilityAudioDecoderChild(SandboxingKind aKind)
: mSandbox(aKind), mAudioDecoderChildStart(TimeStamp::Now()) {
MOZ_ASSERT(NS_IsMainThread());
nsCOMPtr<nsIObserverService> observerService = services::GetObserverService();
if (observerService) {
auto* obs = new UtilityAudioDecoderChildShutdownObserver(aKind);
observerService->AddObserver(obs, "ipc:utility-shutdown", false);
}
}
nsresult UtilityAudioDecoderChild::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;
}
nsTArray<gfx::GfxVarUpdate> updates;
#ifdef MOZ_WMF_MEDIA_ENGINE
// Only MFCDM process needs gfxVars
if (mSandbox == SandboxingKind::MF_MEDIA_ENGINE_CDM) {
updates = gfx::gfxVars::FetchNonDefaultVars();
}
#endif
if (!aUtilityParent->SendStartUtilityAudioDecoderService(
std::move(utilityAudioDecoderParentEnd), std::move(updates))) {
MOZ_ASSERT(false, "StartUtilityAudioDecoder service failure");
return NS_ERROR_FAILURE;
}
Bind(std::move(utilityAudioDecoderChildEnd));
PROFILER_MARKER_UNTYPED("UtilityAudioDecoderChild::BindToUtilityProcess", IPC,
MarkerOptions(MarkerTiming::IntervalUntilNowFrom(
mAudioDecoderChildStart)));
return NS_OK;
}
void UtilityAudioDecoderChild::ActorDestroy(ActorDestroyReason aReason) {
MOZ_ASSERT(NS_IsMainThread());
#ifdef MOZ_WMF_MEDIA_ENGINE
if (mSandbox == SandboxingKind::MF_MEDIA_ENGINE_CDM) {
gfx::gfxVars::RemoveReceiver(this);
}
#endif
Shutdown(mSandbox);
}
void UtilityAudioDecoderChild::Bind(
Endpoint<PUtilityAudioDecoderChild>&& aEndpoint) {
MOZ_ASSERT(NS_IsMainThread());
if (NS_WARN_IF(!aEndpoint.Bind(this))) {
MOZ_ASSERT_UNREACHABLE("Failed to bind UtilityAudioDecoderChild!");
return;
}
#ifdef MOZ_WMF_MEDIA_ENGINE
if (mSandbox == SandboxingKind::MF_MEDIA_ENGINE_CDM) {
gfx::gfxVars::AddReceiver(this);
}
#endif
}
/* static */
void UtilityAudioDecoderChild::Shutdown(SandboxingKind aKind) {
sAudioDecoderChilds[aKind] = nullptr;
}
/* static */
RefPtr<UtilityAudioDecoderChild> UtilityAudioDecoderChild::GetSingleton(
SandboxingKind aKind) {
MOZ_ASSERT(NS_IsMainThread());
bool shutdown = AppShutdown::IsInOrBeyond(ShutdownPhase::XPCOMWillShutdown);
if (!sAudioDecoderChilds[aKind] && !shutdown) {
sAudioDecoderChilds[aKind] = new UtilityAudioDecoderChild(aKind);
}
return sAudioDecoderChilds[aKind];
}
mozilla::ipc::IPCResult
UtilityAudioDecoderChild::RecvUpdateMediaCodecsSupported(
const RemoteDecodeIn& aLocation,
const media::MediaCodecsSupported& aSupported) {
dom::ContentParent::BroadcastMediaCodecsSupportedUpdate(aLocation,
aSupported);
return IPC_OK();
}
#ifdef MOZ_WMF_MEDIA_ENGINE
mozilla::ipc::IPCResult
UtilityAudioDecoderChild::RecvCompleteCreatedVideoBridge() {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mSandbox == SandboxingKind::MF_MEDIA_ENGINE_CDM);
mHasCreatedVideoBridge = State::Created;
return IPC_OK();
}
void UtilityAudioDecoderChild::OnVarChanged(const gfx::GfxVarUpdate& aVar) {
MOZ_ASSERT(mSandbox == SandboxingKind::MF_MEDIA_ENGINE_CDM);
SendUpdateVar(aVar);
}
void UtilityAudioDecoderChild::OnCompositorUnexpectedShutdown() {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mSandbox == SandboxingKind::MF_MEDIA_ENGINE_CDM);
mHasCreatedVideoBridge = State::None;
CreateVideoBridge();
}
bool UtilityAudioDecoderChild::CreateVideoBridge() {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mSandbox == SandboxingKind::MF_MEDIA_ENGINE_CDM);
// Creating or already created, avoiding reinit a bridge.
if (mHasCreatedVideoBridge != State::None) {
return true;
}
mHasCreatedVideoBridge = State::Creating;
// Build content device data first; this ensure that the GPU process is fully
// ready.
gfx::ContentDeviceData contentDeviceData;
gfxPlatform::GetPlatform()->BuildContentDeviceData(&contentDeviceData);
gfx::GPUProcessManager* gpuManager = gfx::GPUProcessManager::Get();
if (!gpuManager) {
NS_WARNING("Failed to get a gpu mananger!");
return false;
}
// The child end is the producer of video frames; the parent end is the
// consumer.
base::ProcessId childPid = UtilityProcessManager::GetSingleton()
->GetProcessParent(mSandbox)
->OtherPid();
base::ProcessId parentPid = gpuManager->GPUProcessPid();
if (parentPid == base::kInvalidProcessId) {
NS_WARNING("GPU process Id is invald!");
return false;
}
ipc::Endpoint<layers::PVideoBridgeParent> parentPipe;
ipc::Endpoint<layers::PVideoBridgeChild> childPipe;
nsresult rv = layers::PVideoBridge::CreateEndpoints(parentPid, childPid,
&parentPipe, &childPipe);
if (NS_FAILED(rv)) {
NS_WARNING("Failed to create endpoints for video bridge!");
return false;
}
gpuManager->InitVideoBridge(
std::move(parentPipe),
layers::VideoBridgeSource::MFMediaEngineCDMProcess);
SendInitVideoBridge(std::move(childPipe), contentDeviceData);
return true;
}
#endif
#ifdef MOZ_WMF_CDM
void UtilityAudioDecoderChild::GetKeySystemCapabilities(
dom::Promise* aPromise) {
EME_LOG("Ask capabilities for all supported CDMs");
SendGetKeySystemCapabilities()->Then(
NS_GetCurrentThread(), __func__,
[promise = RefPtr<dom::Promise>(aPromise)](
CopyableTArray<MFCDMCapabilitiesIPDL>&& result) {
FallibleTArray<dom::CDMInformation> cdmInfo;
for (const auto& capabilities : result) {
EME_LOG("Received capabilities for %s",
NS_ConvertUTF16toUTF8(capabilities.keySystem()).get());
for (const auto& v : capabilities.videoCapabilities()) {
EME_LOG(" capabilities: video=%s",
NS_ConvertUTF16toUTF8(v.contentType()).get());
}
for (const auto& a : capabilities.audioCapabilities()) {
EME_LOG(" capabilities: audio=%s",
NS_ConvertUTF16toUTF8(a.contentType()).get());
}
for (const auto& e : capabilities.encryptionSchemes()) {
EME_LOG(" capabilities: encryptionScheme=%s",
EncryptionSchemeStr(e));
}
auto* info = cdmInfo.AppendElement(fallible);
if (!info) {
promise->MaybeReject(NS_ERROR_OUT_OF_MEMORY);
return;
}
info->mKeySystemName = capabilities.keySystem();
KeySystemConfig config;
MFCDMCapabilitiesIPDLToKeySystemConfig(capabilities, config);
info->mCapabilities = config.GetDebugInfo();
info->mClearlead =
DoesKeySystemSupportClearLead(info->mKeySystemName);
if (capabilities.isHDCP22Compatible()) {
info->mIsHDCP22Compatible = *capabilities.isHDCP22Compatible();
}
}
promise->MaybeResolve(cdmInfo);
},
[promise = RefPtr<dom::Promise>(aPromise)](
const mozilla::ipc::ResponseRejectReason& aReason) {
EME_LOG("IPC failure for GetKeySystemCapabilities!");
promise->MaybeReject(NS_ERROR_DOM_MEDIA_CDM_ERR);
});
}
#endif
} // namespace mozilla::ipc