1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
/* -*- 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/. */
#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
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, SandboxingKind::COUNT,
StaticRefPtr<UtilityAudioDecoderChild>>
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);
}
}
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 = true;
return IPC_OK();
}
bool UtilityAudioDecoderChild::HasCreatedVideoBridge() const {
MOZ_ASSERT(NS_IsMainThread());
return mHasCreatedVideoBridge;
}
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 = false;
CreateVideoBridge();
}
bool UtilityAudioDecoderChild::CreateVideoBridge() {
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mSandbox == SandboxingKind::MF_MEDIA_ENGINE_CDM);
if (HasCreatedVideoBridge()) {
return true;
}
// 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;
}
nsTArray<gfx::GfxVarUpdate> updates = gfx::gfxVars::FetchNonDefaultVars();
gpuManager->InitVideoBridge(
std::move(parentPipe),
layers::VideoBridgeSource::MFMediaEngineCDMProcess);
SendInitVideoBridge(std::move(childPipe), updates, contentDeviceData);
return true;
}
#endif
} // namespace mozilla::ipc
|
