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
|
// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/platform/peerconnection/instrumented_video_encoder_wrapper.h"
#include "base/numerics/safe_conversions.h"
#include "base/time/time.h"
#include "third_party/webrtc/modules/video_coding/include/video_error_codes.h"
namespace blink {
InstrumentedVideoEncoderWrapper::InstrumentedVideoEncoderWrapper(
int id,
std::unique_ptr<webrtc::VideoEncoder> wrapped_encoder,
VideoEncoderStateObserver* state_observer)
: id_(id),
state_observer_(state_observer),
encoder_sequence_runner_(base::SequencedTaskRunner::GetCurrentDefault()),
wrapped_encoder_(std::move(wrapped_encoder)),
callback_(nullptr) {
DCHECK_CALLED_ON_VALID_SEQUENCE(encoder_sequence_);
}
InstrumentedVideoEncoderWrapper::~InstrumentedVideoEncoderWrapper() {
DCHECK_CALLED_ON_VALID_SEQUENCE(encoder_sequence_);
wrapped_encoder_->RegisterEncodeCompleteCallback(nullptr);
weak_this_factory_.InvalidateWeakPtrs();
}
int InstrumentedVideoEncoderWrapper::InitEncode(
const webrtc::VideoCodec* codec_settings,
const webrtc::VideoEncoder::Settings& settings) {
DCHECK_CALLED_ON_VALID_SEQUENCE(encoder_sequence_);
const int status = wrapped_encoder_->InitEncode(codec_settings, settings);
if (status == WEBRTC_VIDEO_CODEC_OK) {
state_observer_->OnEncoderCreated(id_, *codec_settings);
CHECK_EQ(wrapped_encoder_->RegisterEncodeCompleteCallback(this),
WEBRTC_VIDEO_CODEC_OK);
}
return status;
}
int32_t InstrumentedVideoEncoderWrapper::RegisterEncodeCompleteCallback(
webrtc::EncodedImageCallback* callback) {
DCHECK_CALLED_ON_VALID_SEQUENCE(encoder_sequence_);
callback_ = callback;
return WEBRTC_VIDEO_CODEC_OK;
}
int32_t InstrumentedVideoEncoderWrapper::Release() {
DCHECK_CALLED_ON_VALID_SEQUENCE(encoder_sequence_);
state_observer_->OnEncoderDestroyed(id_);
const int status = wrapped_encoder_->Release();
wrapped_encoder_->RegisterEncodeCompleteCallback(nullptr);
return status;
}
int32_t InstrumentedVideoEncoderWrapper::Encode(
const webrtc::VideoFrame& frame,
const std::vector<webrtc::VideoFrameType>* frame_types) {
DCHECK_CALLED_ON_VALID_SEQUENCE(encoder_sequence_);
state_observer_->OnEncode(id_, frame.rtp_timestamp());
return wrapped_encoder_->Encode(frame, frame_types);
}
void InstrumentedVideoEncoderWrapper::SetRates(
const RateControlParameters& parameters) {
DCHECK_CALLED_ON_VALID_SEQUENCE(encoder_sequence_);
wrapped_encoder_->SetRates(parameters);
Vector<bool> active_layers;
for (wtf_size_t i = 0; i < webrtc::kMaxSpatialLayers; ++i) {
if (parameters.bitrate.IsSpatialLayerUsed(i)) {
while (active_layers.size() + 1 < i) {
// Backfill in case some lower layers were not used.
active_layers.push_back(false);
}
active_layers.push_back(parameters.bitrate.GetSpatialLayerSum(i) > 0);
}
}
state_observer_->OnRatesUpdated(id_, active_layers);
}
void InstrumentedVideoEncoderWrapper::SetFecControllerOverride(
webrtc::FecControllerOverride* fec_controller_override) {
wrapped_encoder_->SetFecControllerOverride(fec_controller_override);
}
void InstrumentedVideoEncoderWrapper::OnPacketLossRateUpdate(
float packet_loss_rate) {
wrapped_encoder_->OnPacketLossRateUpdate(packet_loss_rate);
}
void InstrumentedVideoEncoderWrapper::OnRttUpdate(int64_t rtt_ms) {
wrapped_encoder_->OnRttUpdate(rtt_ms);
}
void InstrumentedVideoEncoderWrapper::OnLossNotification(
const LossNotification& loss_notification) {
wrapped_encoder_->OnLossNotification(loss_notification);
}
webrtc::VideoEncoder::EncoderInfo
InstrumentedVideoEncoderWrapper::GetEncoderInfo() const {
return wrapped_encoder_->GetEncoderInfo();
}
void InstrumentedVideoEncoderWrapper::ReportEncodeResult(
const VideoEncoderStateObserver::EncodeResult& result) {
DCHECK_CALLED_ON_VALID_SEQUENCE(encoder_sequence_);
state_observer_->OnEncodedImage(id_, result);
}
webrtc::EncodedImageCallback::Result
InstrumentedVideoEncoderWrapper::OnEncodedImage(
const webrtc::EncodedImage& encoded_image,
const webrtc::CodecSpecificInfo* codec_specific_info) {
VideoEncoderStateObserver::EncodeResult encode_result{
.width = base::checked_cast<int>(encoded_image._encodedWidth),
.height = base::checked_cast<int>(encoded_image._encodedHeight),
.keyframe =
encoded_image._frameType == webrtc::VideoFrameType::kVideoFrameKey,
.spatial_index = encoded_image.SpatialIndex(),
.rtp_timestamp = encoded_image.RtpTimestamp(),
.encode_end_time = base::TimeTicks::Now(),
.is_hardware_accelerated = GetEncoderInfo().is_hardware_accelerated};
if (!encoder_sequence_runner_->RunsTasksInCurrentSequence()) {
encoder_sequence_runner_->PostTask(
FROM_HERE,
base::BindOnce(&InstrumentedVideoEncoderWrapper::ReportEncodeResult,
weak_this_factory_.GetWeakPtr(), encode_result));
} else {
ReportEncodeResult(encode_result);
}
webrtc::EncodedImageCallback::Result result(
webrtc::EncodedImageCallback::Result::OK);
if (callback_) {
result = callback_->OnEncodedImage(encoded_image, codec_specific_info);
}
return result;
}
void InstrumentedVideoEncoderWrapper::OnDroppedFrame(
webrtc::EncodedImageCallback::DropReason reason) {
if (callback_) {
callback_->OnDroppedFrame(reason);
}
}
} // namespace blink
|
