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
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
/* -*- 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 {
namespace 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)
{
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)
{
MOZ_ASSERT(mPlugin->GMPMessageLoop() == MessageLoop::current());
SendError(aError);
}
bool
GMPVideoEncoderChild::RecvInitEncode(const GMPVideoCodec& aCodecSettings,
InfallibleTArray<uint8_t>&& aCodecSpecific,
const int32_t& aNumberOfCores,
const uint32_t& aMaxPayloadSize)
{
if (!mVideoEncoder) {
return false;
}
// 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 true;
}
bool
GMPVideoEncoderChild::RecvEncode(const GMPVideoi420FrameData& aInputFrame,
InfallibleTArray<uint8_t>&& aCodecSpecificInfo,
InfallibleTArray<GMPVideoFrameType>&& aFrameTypes)
{
if (!mVideoEncoder) {
return false;
}
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 true;
}
bool
GMPVideoEncoderChild::RecvChildShmemForPool(Shmem&& aEncodedBuffer)
{
if (aEncodedBuffer.IsWritable()) {
mVideoHost.SharedMemMgr()->MgrDeallocShmem(GMPSharedMem::kGMPEncodedData,
aEncodedBuffer);
}
return true;
}
bool
GMPVideoEncoderChild::RecvSetChannelParameters(const uint32_t& aPacketLoss,
const uint32_t& aRTT)
{
if (!mVideoEncoder) {
return false;
}
// Ignore any return code. It is OK for this to fail without killing the process.
mVideoEncoder->SetChannelParameters(aPacketLoss, aRTT);
return true;
}
bool
GMPVideoEncoderChild::RecvSetRates(const uint32_t& aNewBitRate,
const uint32_t& aFrameRate)
{
if (!mVideoEncoder) {
return false;
}
// Ignore any return code. It is OK for this to fail without killing the process.
mVideoEncoder->SetRates(aNewBitRate, aFrameRate);
return true;
}
bool
GMPVideoEncoderChild::RecvSetPeriodicKeyFrames(const bool& aEnable)
{
if (!mVideoEncoder) {
return false;
}
// Ignore any return code. It is OK for this to fail without killing the process.
mVideoEncoder->SetPeriodicKeyFrames(aEnable);
return true;
}
bool
GMPVideoEncoderChild::RecvEncodingComplete()
{
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 true;
}
if (!mVideoEncoder) {
Unused << Send__delete__(this);
return false;
}
// Ignore any return code. It is OK for this to fail without killing the process.
mVideoEncoder->EncodingComplete();
mVideoHost.DoneWithAPI();
mPlugin = nullptr;
Unused << Send__delete__(this);
return true;
}
bool
GMPVideoEncoderChild::Alloc(size_t aSize,
Shmem::SharedMemory::SharedMemoryType aType,
Shmem* aMem)
{
MOZ_ASSERT(mPlugin->GMPMessageLoop() == MessageLoop::current());
bool rv;
#ifndef SHMEM_ALLOC_IN_CHILD
++mNeedShmemIntrCount;
rv = CallNeedShmem(aSize, aMem);
--mNeedShmemIntrCount;
if (mPendingEncodeComplete && mNeedShmemIntrCount == 0) {
mPendingEncodeComplete = false;
mPlugin->GMPMessageLoop()->PostTask(
NewRunnableMethod(this, &GMPVideoEncoderChild::RecvEncodingComplete));
}
#else
#ifdef GMP_SAFE_SHMEM
rv = AllocShmem(aSize, aType, aMem);
#else
rv = AllocUnsafeShmem(aSize, aType, aMem);
#endif
#endif
return rv;
}
void
GMPVideoEncoderChild::Dealloc(Shmem& aMem)
{
#ifndef SHMEM_ALLOC_IN_CHILD
SendParentShmemForPool(aMem);
#else
DeallocShmem(aMem);
#endif
}
} // namespace gmp
} // namespace mozilla
|
