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
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "GMPVideoEncoderChild.h"
#include "GMPContentChild.h"
#include <stdio.h>
#include "mozilla/Unused.h"
#include "GMPVideoEncodedFrameImpl.h"
#include "GMPVideoi420FrameImpl.h"
#include "runnable_utils.h"
namespace mozilla::gmp {
GMPVideoEncoderChild::GMPVideoEncoderChild(GMPContentChild* aPlugin)
: GMPSharedMemManager(aPlugin),
mPlugin(aPlugin),
mVideoEncoder(nullptr),
mVideoHost(this),
mNeedShmemIntrCount(0),
mPendingEncodeComplete(false) {
MOZ_ASSERT(mPlugin);
}
GMPVideoEncoderChild::~GMPVideoEncoderChild() {
MOZ_ASSERT(!mNeedShmemIntrCount);
}
void GMPVideoEncoderChild::Init(GMPVideoEncoder* aEncoder) {
MOZ_ASSERT(aEncoder,
"Cannot initialize video encoder child without a video encoder!");
mVideoEncoder = aEncoder;
}
GMPVideoHostImpl& GMPVideoEncoderChild::Host() { return mVideoHost; }
void GMPVideoEncoderChild::Encoded(GMPVideoEncodedFrame* aEncodedFrame,
const uint8_t* aCodecSpecificInfo,
uint32_t aCodecSpecificInfoLength) {
if (NS_WARN_IF(!mPlugin)) {
aEncodedFrame->Destroy();
return;
}
MOZ_ASSERT(mPlugin->GMPMessageLoop() == MessageLoop::current());
auto ef = static_cast<GMPVideoEncodedFrameImpl*>(aEncodedFrame);
GMPVideoEncodedFrameData frameData;
ef->RelinquishFrameData(frameData);
nsTArray<uint8_t> codecSpecific;
codecSpecific.AppendElements(aCodecSpecificInfo, aCodecSpecificInfoLength);
SendEncoded(frameData, codecSpecific);
aEncodedFrame->Destroy();
}
void GMPVideoEncoderChild::Error(GMPErr aError) {
if (NS_WARN_IF(!mPlugin)) {
return;
}
MOZ_ASSERT(mPlugin->GMPMessageLoop() == MessageLoop::current());
SendError(aError);
}
mozilla::ipc::IPCResult GMPVideoEncoderChild::RecvInitEncode(
const GMPVideoCodec& aCodecSettings, nsTArray<uint8_t>&& aCodecSpecific,
const int32_t& aNumberOfCores, const uint32_t& aMaxPayloadSize) {
if (!mVideoEncoder) {
return IPC_FAIL(this, "!mVideoDecoder");
}
// Ignore any return code. It is OK for this to fail without killing the
// process.
mVideoEncoder->InitEncode(aCodecSettings, aCodecSpecific.Elements(),
aCodecSpecific.Length(), this, aNumberOfCores,
aMaxPayloadSize);
return IPC_OK();
}
mozilla::ipc::IPCResult GMPVideoEncoderChild::RecvEncode(
const GMPVideoi420FrameData& aInputFrame,
nsTArray<uint8_t>&& aCodecSpecificInfo,
nsTArray<GMPVideoFrameType>&& aFrameTypes) {
if (!mVideoEncoder) {
return IPC_FAIL(this, "!mVideoDecoder");
}
auto f = new GMPVideoi420FrameImpl(aInputFrame, &mVideoHost);
// Ignore any return code. It is OK for this to fail without killing the
// process.
mVideoEncoder->Encode(f, aCodecSpecificInfo.Elements(),
aCodecSpecificInfo.Length(), aFrameTypes.Elements(),
aFrameTypes.Length());
return IPC_OK();
}
mozilla::ipc::IPCResult GMPVideoEncoderChild::RecvChildShmemForPool(
Shmem&& aEncodedBuffer) {
GMPSharedMemManager* memMgr = mVideoHost.SharedMemMgr();
if (memMgr && aEncodedBuffer.IsWritable()) {
memMgr->MgrDeallocShmem(GMPSharedMem::kGMPEncodedData, aEncodedBuffer);
}
return IPC_OK();
}
mozilla::ipc::IPCResult GMPVideoEncoderChild::RecvSetChannelParameters(
const uint32_t& aPacketLoss, const uint32_t& aRTT) {
if (!mVideoEncoder) {
return IPC_FAIL(this, "!mVideoDecoder");
}
// Ignore any return code. It is OK for this to fail without killing the
// process.
mVideoEncoder->SetChannelParameters(aPacketLoss, aRTT);
return IPC_OK();
}
mozilla::ipc::IPCResult GMPVideoEncoderChild::RecvSetRates(
const uint32_t& aNewBitRate, const uint32_t& aFrameRate) {
if (!mVideoEncoder) {
return IPC_FAIL(this, "!mVideoDecoder");
}
// Ignore any return code. It is OK for this to fail without killing the
// process.
mVideoEncoder->SetRates(aNewBitRate, aFrameRate);
return IPC_OK();
}
mozilla::ipc::IPCResult GMPVideoEncoderChild::RecvSetPeriodicKeyFrames(
const bool& aEnable) {
if (!mVideoEncoder) {
return IPC_FAIL(this, "!mVideoDecoder");
}
// Ignore any return code. It is OK for this to fail without killing the
// process.
mVideoEncoder->SetPeriodicKeyFrames(aEnable);
return IPC_OK();
}
mozilla::ipc::IPCResult GMPVideoEncoderChild::RecvEncodingComplete() {
MOZ_ASSERT(mPlugin);
MOZ_ASSERT(mPlugin->GMPMessageLoop() == MessageLoop::current());
if (mNeedShmemIntrCount) {
// There's a GMP blocked in Alloc() waiting for the CallNeedShem() to
// return a frame they can use. Don't call the GMP's EncodingComplete()
// now and don't delete the GMPVideoEncoderChild, defer processing the
// EncodingComplete() until once the Alloc() finishes.
mPendingEncodeComplete = true;
return IPC_OK();
}
// This will call ActorDestroy.
Unused << Send__delete__(this);
return IPC_OK();
}
void GMPVideoEncoderChild::ActorDestroy(ActorDestroyReason why) {
if (mVideoEncoder) {
// Ignore any return code. It is OK for this to fail without killing the
// process.
mVideoEncoder->EncodingComplete();
mVideoEncoder = nullptr;
}
mVideoHost.DoneWithAPI();
mPlugin = nullptr;
}
bool GMPVideoEncoderChild::Alloc(size_t aSize, Shmem* aMem) {
if (NS_WARN_IF(!mPlugin)) {
return false;
}
MOZ_ASSERT(mPlugin->GMPMessageLoop() == MessageLoop::current());
bool rv;
#ifndef SHMEM_ALLOC_IN_CHILD
++mNeedShmemIntrCount;
rv = SendNeedShmem(aSize, aMem);
--mNeedShmemIntrCount;
if (mPendingEncodeComplete && mNeedShmemIntrCount == 0) {
mPendingEncodeComplete = false;
mPlugin->GMPMessageLoop()->PostTask(
NewRunnableMethod("gmp::GMPVideoEncoderChild::RecvEncodingComplete",
this, &GMPVideoEncoderChild::RecvEncodingComplete));
}
#else
rv = AllocShmem(aSize, aMem);
#endif
return rv;
}
void GMPVideoEncoderChild::Dealloc(Shmem&& aMem) {
#ifndef SHMEM_ALLOC_IN_CHILD
SendParentShmemForPool(std::move(aMem));
#else
DeallocShmem(aMem);
#endif
}
} // namespace mozilla::gmp
|
