OLD | NEW |
| (Empty) |
1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "remoting/protocol/webrtc_video_encoder_factory.h" | |
6 | |
7 #include <algorithm> | |
8 #include <vector> | |
9 | |
10 #include "base/callback.h" | |
11 #include "base/logging.h" | |
12 #include "base/memory/ptr_util.h" | |
13 #include "base/synchronization/lock.h" | |
14 | |
15 namespace remoting { | |
16 | |
17 WebrtcVideoEncoder::WebrtcVideoEncoder(webrtc::VideoCodecType codec) | |
18 : state_(kUninitialized), video_codec_type_(codec) { | |
19 VLOG(1) << "video codecType " << video_codec_type_; | |
20 } | |
21 | |
22 WebrtcVideoEncoder::~WebrtcVideoEncoder() {} | |
23 | |
24 int32_t WebrtcVideoEncoder::InitEncode(const webrtc::VideoCodec* codec_settings, | |
25 int32_t number_of_cores, | |
26 size_t max_payload_size) { | |
27 base::AutoLock lock(lock_); | |
28 DCHECK(codec_settings); | |
29 VLOG(1) << "video codecType " << codec_settings->codecType << " width " | |
30 << codec_settings->width << " height " << codec_settings->height | |
31 << " startBitrate " << codec_settings->startBitrate << " maxBitrate " | |
32 << codec_settings->maxBitrate << " minBitrate " | |
33 << codec_settings->minBitrate << " targetBitrate " | |
34 << codec_settings->targetBitrate << " maxFramerate " | |
35 << codec_settings->maxFramerate; | |
36 | |
37 int streamCount = codec_settings->numberOfSimulcastStreams; | |
38 // Validate request is to support a single stream. | |
39 if (streamCount > 1) { | |
40 for (int i = 0; i < streamCount; ++i) { | |
41 if (codec_settings->simulcastStream[i].maxBitrate != 0) { | |
42 LOG(ERROR) << "Simulcast unsupported"; | |
43 return WEBRTC_VIDEO_CODEC_ERR_PARAMETER; | |
44 } | |
45 } | |
46 } | |
47 state_ = kInitialized; | |
48 return WEBRTC_VIDEO_CODEC_OK; | |
49 } | |
50 | |
51 int32_t WebrtcVideoEncoder::RegisterEncodeCompleteCallback( | |
52 webrtc::EncodedImageCallback* callback) { | |
53 base::AutoLock lock(lock_); | |
54 DCHECK(callback); | |
55 encoded_callback_ = callback; | |
56 return WEBRTC_VIDEO_CODEC_OK; | |
57 } | |
58 | |
59 int32_t WebrtcVideoEncoder::Release() { | |
60 base::AutoLock lock(lock_); | |
61 encoded_callback_ = nullptr; | |
62 return WEBRTC_VIDEO_CODEC_OK; | |
63 } | |
64 | |
65 int32_t WebrtcVideoEncoder::Encode( | |
66 const webrtc::VideoFrame& frame, | |
67 const webrtc::CodecSpecificInfo* codec_specific_info, | |
68 const std::vector<webrtc::FrameType>* frame_types) { | |
69 base::AutoLock lock(lock_); | |
70 if (!key_frame_request_.is_null()) | |
71 key_frame_request_.Run(); | |
72 return WEBRTC_VIDEO_CODEC_OK; | |
73 } | |
74 | |
75 int32_t WebrtcVideoEncoder::SetChannelParameters(uint32_t packet_loss, | |
76 int64_t rtt) { | |
77 VLOG(1) << "WebrtcVideoEncoder::SetChannelParameters " | |
78 << "loss:RTT " << packet_loss << ":" << rtt; | |
79 // Unused right now. | |
80 return WEBRTC_VIDEO_CODEC_OK; | |
81 } | |
82 | |
83 int32_t WebrtcVideoEncoder::SetRates(uint32_t bitrate, uint32_t framerate) { | |
84 VLOG(1) << "WebrtcVideoEncoder::SetRates bitrate:framerate " << bitrate << ":" | |
85 << framerate; | |
86 if (!target_bitrate_cb_.is_null()) | |
87 target_bitrate_cb_.Run(bitrate); | |
88 // framerate is not expected to be valid given we never report captured | |
89 // frames | |
90 return WEBRTC_VIDEO_CODEC_OK; | |
91 } | |
92 | |
93 webrtc::EncodedImageCallback::Result WebrtcVideoEncoder::SendEncodedFrame( | |
94 std::unique_ptr<VideoPacket> frame, | |
95 base::TimeTicks capture_time) { | |
96 uint8_t* buffer = | |
97 reinterpret_cast<uint8_t*>(const_cast<char*>(frame->data().data())); | |
98 size_t buffer_size = frame->data().size(); | |
99 base::AutoLock lock(lock_); | |
100 if (state_ == kUninitialized) { | |
101 LOG(ERROR) << "encoder interface uninitialized"; | |
102 return webrtc::EncodedImageCallback::Result( | |
103 webrtc::EncodedImageCallback::Result::ERROR_SEND_FAILED); | |
104 } | |
105 | |
106 webrtc::EncodedImage encoded_image(buffer, buffer_size, buffer_size); | |
107 encoded_image._encodedWidth = frame->format().screen_width(); | |
108 encoded_image._encodedHeight = frame->format().screen_height(); | |
109 encoded_image._completeFrame = true; | |
110 encoded_image._frameType = | |
111 frame->key_frame() ? webrtc::kVideoFrameKey : webrtc::kVideoFrameDelta; | |
112 int64_t capture_time_ms = (capture_time - base::TimeTicks()).InMilliseconds(); | |
113 encoded_image.capture_time_ms_ = capture_time_ms; | |
114 encoded_image._timeStamp = static_cast<uint32_t>(capture_time_ms * 90); | |
115 encoded_image.playout_delay_.min_ms = 0; | |
116 encoded_image.playout_delay_.max_ms = 0; | |
117 | |
118 webrtc::CodecSpecificInfo codec_specific_info; | |
119 memset(&codec_specific_info, 0, sizeof(codec_specific_info)); | |
120 codec_specific_info.codecType = webrtc::kVideoCodecVP8; | |
121 | |
122 webrtc::RTPFragmentationHeader header; | |
123 memset(&header, 0, sizeof(header)); | |
124 | |
125 codec_specific_info.codecSpecific.VP8.simulcastIdx = 0; | |
126 codec_specific_info.codecSpecific.VP8.temporalIdx = webrtc::kNoTemporalIdx; | |
127 codec_specific_info.codecSpecific.VP8.tl0PicIdx = webrtc::kNoTl0PicIdx; | |
128 codec_specific_info.codecSpecific.VP8.pictureId = webrtc::kNoPictureId; | |
129 | |
130 header.VerifyAndAllocateFragmentationHeader(1); | |
131 header.fragmentationOffset[0] = 0; | |
132 header.fragmentationLength[0] = buffer_size; | |
133 header.fragmentationPlType[0] = 0; | |
134 header.fragmentationTimeDiff[0] = 0; | |
135 | |
136 return encoded_callback_->OnEncodedImage(encoded_image, &codec_specific_info, | |
137 &header); | |
138 } | |
139 | |
140 void WebrtcVideoEncoder::SetKeyFrameRequestCallback( | |
141 const base::Closure& key_frame_request) { | |
142 base::AutoLock lock(lock_); | |
143 key_frame_request_ = key_frame_request; | |
144 } | |
145 | |
146 void WebrtcVideoEncoder::SetTargetBitrateCallback( | |
147 const TargetBitrateCallback& target_bitrate_cb) { | |
148 base::AutoLock lock(lock_); | |
149 target_bitrate_cb_ = target_bitrate_cb; | |
150 } | |
151 | |
152 WebrtcVideoEncoderFactory::WebrtcVideoEncoderFactory() { | |
153 // TODO(isheriff): These do not really affect anything internally | |
154 // in webrtc. | |
155 codecs_.push_back(cricket::WebRtcVideoEncoderFactory::VideoCodec( | |
156 webrtc::kVideoCodecVP8, "VP8", 1280, 720, 30)); | |
157 } | |
158 | |
159 WebrtcVideoEncoderFactory::~WebrtcVideoEncoderFactory() { | |
160 DCHECK(encoders_.empty()); | |
161 } | |
162 | |
163 webrtc::VideoEncoder* WebrtcVideoEncoderFactory::CreateVideoEncoder( | |
164 webrtc::VideoCodecType type) { | |
165 VLOG(2) << "WebrtcVideoEncoderFactory::CreateVideoEncoder " << type; | |
166 DCHECK(type == webrtc::kVideoCodecVP8); | |
167 WebrtcVideoEncoder* encoder = new WebrtcVideoEncoder(type); | |
168 base::AutoLock lock(lock_); | |
169 encoder->SetKeyFrameRequestCallback(key_frame_request_); | |
170 encoder->SetTargetBitrateCallback(target_bitrate_cb_); | |
171 VLOG(1) << "Created " << encoder; | |
172 encoders_.push_back(base::WrapUnique(encoder)); | |
173 return encoder; | |
174 } | |
175 | |
176 const std::vector<cricket::WebRtcVideoEncoderFactory::VideoCodec>& | |
177 WebrtcVideoEncoderFactory::codecs() const { | |
178 VLOG(2) << "WebrtcVideoEncoderFactory::codecs"; | |
179 return codecs_; | |
180 } | |
181 | |
182 bool WebrtcVideoEncoderFactory::EncoderTypeHasInternalSource( | |
183 webrtc::VideoCodecType type) const { | |
184 VLOG(2) << "WebrtcVideoEncoderFactory::EncoderTypeHasInternalSource"; | |
185 return true; | |
186 } | |
187 | |
188 void WebrtcVideoEncoderFactory::DestroyVideoEncoder( | |
189 webrtc::VideoEncoder* encoder) { | |
190 VLOG(2) << "WebrtcVideoEncoderFactory::DestroyVideoEncoder"; | |
191 if (encoder == nullptr) { | |
192 LOG(ERROR) << "Attempting to destroy null encoder"; | |
193 return; | |
194 } | |
195 for (auto pos = encoders_.begin(); pos != encoders_.end(); ++pos) { | |
196 if ((*pos).get() == encoder) { | |
197 encoders_.erase(pos); | |
198 return; | |
199 } | |
200 } | |
201 DCHECK(false) << "Asked to remove encoder not owned by factory"; | |
202 } | |
203 | |
204 webrtc::EncodedImageCallback::Result | |
205 WebrtcVideoEncoderFactory::SendEncodedFrame(std::unique_ptr<VideoPacket> frame, | |
206 base::TimeTicks capture_time) { | |
207 if (encoders_.size() != 1) { | |
208 LOG(ERROR) << "Unexpected number of encoders " << encoders_.size(); | |
209 return webrtc::EncodedImageCallback::Result( | |
210 webrtc::EncodedImageCallback::Result::ERROR_SEND_FAILED); | |
211 } | |
212 return encoders_.front()->SendEncodedFrame(std::move(frame), capture_time); | |
213 } | |
214 | |
215 void WebrtcVideoEncoderFactory::SetKeyFrameRequestCallback( | |
216 const base::Closure& key_frame_request) { | |
217 base::AutoLock lock(lock_); | |
218 key_frame_request_ = key_frame_request; | |
219 if (encoders_.size() == 1) { | |
220 encoders_.front()->SetKeyFrameRequestCallback(key_frame_request); | |
221 } else { | |
222 LOG(ERROR) << "Dropping key frame request callback with unexpected" | |
223 " number of encoders: " | |
224 << encoders_.size(); | |
225 } | |
226 } | |
227 | |
228 void WebrtcVideoEncoderFactory::SetTargetBitrateCallback( | |
229 const TargetBitrateCallback& target_bitrate_cb) { | |
230 base::AutoLock lock(lock_); | |
231 target_bitrate_cb_ = target_bitrate_cb; | |
232 if (encoders_.size() == 1) { | |
233 encoders_.front()->SetTargetBitrateCallback(target_bitrate_cb); | |
234 } else { | |
235 LOG(ERROR) << "Dropping target bitrate request callback with unexpected" | |
236 " number of encoders: " | |
237 << encoders_.size(); | |
238 } | |
239 } | |
240 | |
241 } // namespace remoting | |
OLD | NEW |