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webrtc / src / 2504c0a91c2923905a59f85d4e1c9675135648a0 / . / webrtc / video / vie_encoder.cc
blob: 95a6f5a18c9f54a8139292fcfd05167cfdc8af3c [file] [log] [blame]
/*
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "webrtc/video/vie_encoder.h"
#include <algorithm>
#include <limits>
#include <utility>
#include "webrtc/base/checks.h"
#include "webrtc/base/logging.h"
#include "webrtc/base/trace_event.h"
#include "webrtc/base/timeutils.h"
#include "webrtc/modules/pacing/paced_sender.h"
#include "webrtc/modules/video_coding/include/video_coding.h"
#include "webrtc/modules/video_coding/include/video_coding_defines.h"
#include "webrtc/video/overuse_frame_detector.h"
#include "webrtc/video/send_statistics_proxy.h"
#include "webrtc/video_frame.h"
namespace webrtc {
namespace {
// Time interval for logging frame counts.
const int64_t kFrameLogIntervalMs = 60000;
VideoCodecType PayloadNameToCodecType(const std::string& payload_name) {
if (payload_name == "VP8")
return kVideoCodecVP8;
if (payload_name == "VP9")
return kVideoCodecVP9;
if (payload_name == "H264")
return kVideoCodecH264;
return kVideoCodecGeneric;
}
VideoCodec VideoEncoderConfigToVideoCodec(
const VideoEncoderConfig& config,
const std::vector<VideoStream>& streams,
const std::string& payload_name,
int payload_type) {
static const int kEncoderMinBitrateKbps = 30;
RTC_DCHECK(!streams.empty());
RTC_DCHECK_GE(config.min_transmit_bitrate_bps, 0);
VideoCodec video_codec;
memset(&video_codec, 0, sizeof(video_codec));
video_codec.codecType = PayloadNameToCodecType(payload_name);
switch (config.content_type) {
case VideoEncoderConfig::ContentType::kRealtimeVideo:
video_codec.mode = kRealtimeVideo;
break;
case VideoEncoderConfig::ContentType::kScreen:
video_codec.mode = kScreensharing;
if (streams.size() == 1 &&
streams[0].temporal_layer_thresholds_bps.size() == 1) {
video_codec.targetBitrate =
streams[0].temporal_layer_thresholds_bps[0] / 1000;
}
break;
}
if (config.encoder_specific_settings)
config.encoder_specific_settings->FillEncoderSpecificSettings(&video_codec);
switch (video_codec.codecType) {
case kVideoCodecVP8: {
if (!config.encoder_specific_settings)
video_codec.codecSpecific.VP8 = VideoEncoder::GetDefaultVp8Settings();
video_codec.codecSpecific.VP8.numberOfTemporalLayers =
static_cast<unsigned char>(
streams.back().temporal_layer_thresholds_bps.size() + 1);
break;
}
case kVideoCodecVP9: {
if (!config.encoder_specific_settings)
video_codec.codecSpecific.VP9 = VideoEncoder::GetDefaultVp9Settings();
if (video_codec.mode == kScreensharing &&
config.encoder_specific_settings) {
video_codec.codecSpecific.VP9.flexibleMode = true;
// For now VP9 screensharing use 1 temporal and 2 spatial layers.
RTC_DCHECK_EQ(1, video_codec.codecSpecific.VP9.numberOfTemporalLayers);
RTC_DCHECK_EQ(2, video_codec.codecSpecific.VP9.numberOfSpatialLayers);
}
video_codec.codecSpecific.VP9.numberOfTemporalLayers =
static_cast<unsigned char>(
streams.back().temporal_layer_thresholds_bps.size() + 1);
break;
}
case kVideoCodecH264: {
if (!config.encoder_specific_settings)
video_codec.codecSpecific.H264 = VideoEncoder::GetDefaultH264Settings();
break;
}
default:
// TODO(pbos): Support encoder_settings codec-agnostically.
RTC_DCHECK(!config.encoder_specific_settings)
<< "Encoder-specific settings for codec type not wired up.";
break;
}
strncpy(video_codec.plName, payload_name.c_str(), kPayloadNameSize - 1);
video_codec.plName[kPayloadNameSize - 1] = '\0';
video_codec.plType = payload_type;
video_codec.numberOfSimulcastStreams =
static_cast<unsigned char>(streams.size());
video_codec.minBitrate = streams[0].min_bitrate_bps / 1000;
if (video_codec.minBitrate < kEncoderMinBitrateKbps)
video_codec.minBitrate = kEncoderMinBitrateKbps;
RTC_DCHECK_LE(streams.size(), static_cast<size_t>(kMaxSimulcastStreams));
if (video_codec.codecType == kVideoCodecVP9) {
// If the vector is empty, bitrates will be configured automatically.
RTC_DCHECK(config.spatial_layers.empty() ||
config.spatial_layers.size() ==
video_codec.codecSpecific.VP9.numberOfSpatialLayers);
RTC_DCHECK_LE(video_codec.codecSpecific.VP9.numberOfSpatialLayers,
kMaxSimulcastStreams);
for (size_t i = 0; i < config.spatial_layers.size(); ++i)
video_codec.spatialLayers[i] = config.spatial_layers[i];
}
for (size_t i = 0; i < streams.size(); ++i) {
SimulcastStream* sim_stream = &video_codec.simulcastStream[i];
RTC_DCHECK_GT(streams[i].width, 0u);
RTC_DCHECK_GT(streams[i].height, 0u);
RTC_DCHECK_GT(streams[i].max_framerate, 0);
// Different framerates not supported per stream at the moment.
RTC_DCHECK_EQ(streams[i].max_framerate, streams[0].max_framerate);
RTC_DCHECK_GE(streams[i].min_bitrate_bps, 0);
RTC_DCHECK_GE(streams[i].target_bitrate_bps, streams[i].min_bitrate_bps);
RTC_DCHECK_GE(streams[i].max_bitrate_bps, streams[i].target_bitrate_bps);
RTC_DCHECK_GE(streams[i].max_qp, 0);
sim_stream->width = static_cast<uint16_t>(streams[i].width);
sim_stream->height = static_cast<uint16_t>(streams[i].height);
sim_stream->minBitrate = streams[i].min_bitrate_bps / 1000;
sim_stream->targetBitrate = streams[i].target_bitrate_bps / 1000;
sim_stream->maxBitrate = streams[i].max_bitrate_bps / 1000;
sim_stream->qpMax = streams[i].max_qp;
sim_stream->numberOfTemporalLayers = static_cast<unsigned char>(
streams[i].temporal_layer_thresholds_bps.size() + 1);
video_codec.width = std::max(video_codec.width,
static_cast<uint16_t>(streams[i].width));
video_codec.height = std::max(
video_codec.height, static_cast<uint16_t>(streams[i].height));
video_codec.minBitrate =
std::min(static_cast<uint16_t>(video_codec.minBitrate),
static_cast<uint16_t>(streams[i].min_bitrate_bps / 1000));
video_codec.maxBitrate += streams[i].max_bitrate_bps / 1000;
video_codec.qpMax = std::max(video_codec.qpMax,
static_cast<unsigned int>(streams[i].max_qp));
}
if (video_codec.maxBitrate == 0) {
// Unset max bitrate -> cap to one bit per pixel.
video_codec.maxBitrate =
(video_codec.width * video_codec.height * video_codec.maxFramerate) /
1000;
}
if (video_codec.maxBitrate < kEncoderMinBitrateKbps)
video_codec.maxBitrate = kEncoderMinBitrateKbps;
RTC_DCHECK_GT(streams[0].max_framerate, 0);
video_codec.maxFramerate = streams[0].max_framerate;
return video_codec;
}
// TODO(pbos): Lower these thresholds (to closer to 100%) when we handle
// pipelining encoders better (multiple input frames before something comes
// out). This should effectively turn off CPU adaptations for systems that
// remotely cope with the load right now.
CpuOveruseOptions GetCpuOveruseOptions(bool full_overuse_time) {
CpuOveruseOptions options;
if (full_overuse_time) {
options.low_encode_usage_threshold_percent = 150;
options.high_encode_usage_threshold_percent = 200;
}
return options;
}
} // namespace
class ViEEncoder::ConfigureEncoderTask : public rtc::QueuedTask {
public:
ConfigureEncoderTask(ViEEncoder* vie_encoder,
VideoEncoderConfig config,
size_t max_data_payload_length)
: vie_encoder_(vie_encoder),
config_(std::move(config)),
max_data_payload_length_(max_data_payload_length) {}
private:
bool Run() override {
vie_encoder_->ConfigureEncoderOnTaskQueue(std::move(config_),
max_data_payload_length_);
return true;
}
ViEEncoder* const vie_encoder_;
VideoEncoderConfig config_;
size_t max_data_payload_length_;
};
class ViEEncoder::EncodeTask : public rtc::QueuedTask {
public:
EncodeTask(const VideoFrame& frame,
ViEEncoder* vie_encoder,
int64_t time_when_posted_in_ms,
bool log_stats)
: vie_encoder_(vie_encoder),
time_when_posted_ms_(time_when_posted_in_ms),
log_stats_(log_stats) {
frame_.ShallowCopy(frame);
++vie_encoder_->posted_frames_waiting_for_encode_;
}
private:
bool Run() override {
RTC_DCHECK_RUN_ON(&vie_encoder_->encoder_queue_);
RTC_DCHECK_GT(vie_encoder_->posted_frames_waiting_for_encode_.Value(), 0);
++vie_encoder_->captured_frame_count_;
if (--vie_encoder_->posted_frames_waiting_for_encode_ == 0) {
vie_encoder_->EncodeVideoFrame(frame_, time_when_posted_ms_);
} else {
// There is a newer frame in flight. Do not encode this frame.
LOG(LS_VERBOSE)
<< "Incoming frame dropped due to that the encoder is blocked.";
++vie_encoder_->dropped_frame_count_;
}
if (log_stats_) {
LOG(LS_INFO) << "Number of frames: captured "
<< vie_encoder_->captured_frame_count_
<< ", dropped (due to encoder blocked) "
<< vie_encoder_->dropped_frame_count_ << ", interval_ms "
<< kFrameLogIntervalMs;
vie_encoder_->captured_frame_count_ = 0;
vie_encoder_->dropped_frame_count_ = 0;
}
return true;
}
VideoFrame frame_;
ViEEncoder* const vie_encoder_;
const int64_t time_when_posted_ms_;
const bool log_stats_;
};
// VideoSourceProxy is responsible ensuring thread safety between calls to
// ViEEncoder::SetSource that will happen on libjingles worker thread when a
// video capturer is connected to the encoder and the encoder task queue
// (encoder_queue_) where the encoder reports its VideoSinkWants.
class ViEEncoder::VideoSourceProxy {
public:
explicit VideoSourceProxy(ViEEncoder* vie_encoder)
: vie_encoder_(vie_encoder), source_(nullptr) {}
void SetSource(rtc::VideoSourceInterface<VideoFrame>* source) {
RTC_DCHECK_CALLED_SEQUENTIALLY(&main_checker_);
rtc::VideoSourceInterface<VideoFrame>* old_source = nullptr;
{
rtc::CritScope lock(&crit_);
old_source = source_;
source_ = source;
}
if (old_source != source && old_source != nullptr) {
old_source->RemoveSink(vie_encoder_);
}
if (!source) {
return;
}
// TODO(perkj): Let VideoSourceProxy implement LoadObserver and truly send
// CPU load as sink wants.
rtc::VideoSinkWants wants;
source->AddOrUpdateSink(vie_encoder_, wants);
}
private:
rtc::CriticalSection crit_;
rtc::SequencedTaskChecker main_checker_;
ViEEncoder* vie_encoder_;
rtc::VideoSourceInterface<VideoFrame>* source_ GUARDED_BY(&crit_);
RTC_DISALLOW_COPY_AND_ASSIGN(VideoSourceProxy);
};
ViEEncoder::ViEEncoder(uint32_t number_of_cores,
SendStatisticsProxy* stats_proxy,
const VideoSendStream::Config::EncoderSettings& settings,
rtc::VideoSinkInterface<VideoFrame>* pre_encode_callback,
LoadObserver* overuse_callback,
EncodedFrameObserver* encoder_timing)
: shutdown_event_(true /* manual_reset */, false),
number_of_cores_(number_of_cores),
source_proxy_(new VideoSourceProxy(this)),
sink_(nullptr),
settings_(settings),
codec_type_(PayloadNameToCodecType(settings.payload_name)),
video_sender_(Clock::GetRealTimeClock(), this, this),
overuse_detector_(Clock::GetRealTimeClock(),
GetCpuOveruseOptions(settings.full_overuse_time),
this,
encoder_timing,
stats_proxy),
load_observer_(overuse_callback),
stats_proxy_(stats_proxy),
pre_encode_callback_(pre_encode_callback),
module_process_thread_(nullptr),
pending_encoder_reconfiguration_(false),
encoder_start_bitrate_bps_(0),
max_data_payload_length_(0),
last_observed_bitrate_bps_(0),
encoder_paused_and_dropped_frame_(false),
has_received_sli_(false),
picture_id_sli_(0),
has_received_rpsi_(false),
picture_id_rpsi_(0),
clock_(Clock::GetRealTimeClock()),
last_captured_timestamp_(0),
delta_ntp_internal_ms_(clock_->CurrentNtpInMilliseconds() -
clock_->TimeInMilliseconds()),
last_frame_log_ms_(clock_->TimeInMilliseconds()),
captured_frame_count_(0),
dropped_frame_count_(0),
encoder_queue_("EncoderQueue") {
encoder_queue_.PostTask([this, encoder_timing] {
RTC_DCHECK_RUN_ON(&encoder_queue_);
video_sender_.RegisterExternalEncoder(
settings_.encoder, settings_.payload_type, settings_.internal_source);
overuse_detector_.StartCheckForOveruse();
});
}
ViEEncoder::~ViEEncoder() {
RTC_DCHECK_RUN_ON(&thread_checker_);
RTC_DCHECK(shutdown_event_.Wait(0))
<< "Must call ::Stop() before destruction.";
}
void ViEEncoder::Stop() {
RTC_DCHECK_RUN_ON(&thread_checker_);
source_proxy_->SetSource(nullptr);
encoder_queue_.PostTask([this] {
RTC_DCHECK_RUN_ON(&encoder_queue_);
video_sender_.RegisterExternalEncoder(nullptr, settings_.payload_type,
false);
overuse_detector_.StopCheckForOveruse();
shutdown_event_.Set();
});
shutdown_event_.Wait(rtc::Event::kForever);
}
void ViEEncoder::RegisterProcessThread(ProcessThread* module_process_thread) {
RTC_DCHECK_RUN_ON(&thread_checker_);
RTC_DCHECK(!module_process_thread_);
module_process_thread_ = module_process_thread;
module_process_thread_->RegisterModule(&video_sender_);
module_process_thread_checker_.DetachFromThread();
}
void ViEEncoder::DeRegisterProcessThread() {
RTC_DCHECK_RUN_ON(&thread_checker_);
module_process_thread_->DeRegisterModule(&video_sender_);
}
void ViEEncoder::SetSource(rtc::VideoSourceInterface<VideoFrame>* source) {
RTC_DCHECK_RUN_ON(&thread_checker_);
source_proxy_->SetSource(source);
}
void ViEEncoder::SetSink(EncoderSink* sink) {
encoder_queue_.PostTask([this, sink] {
RTC_DCHECK_RUN_ON(&encoder_queue_);
sink_ = sink;
});
}
void ViEEncoder::SetStartBitrate(int start_bitrate_bps) {
encoder_queue_.PostTask([this, start_bitrate_bps] {
RTC_DCHECK_RUN_ON(&encoder_queue_);
encoder_start_bitrate_bps_ = start_bitrate_bps;
});
}
void ViEEncoder::ConfigureEncoder(VideoEncoderConfig config,
size_t max_data_payload_length) {
encoder_queue_.PostTask(
std::unique_ptr<rtc::QueuedTask>(new ConfigureEncoderTask(
this, std::move(config), max_data_payload_length)));
}
void ViEEncoder::ConfigureEncoderOnTaskQueue(VideoEncoderConfig config,
size_t max_data_payload_length) {
RTC_DCHECK_RUN_ON(&encoder_queue_);
RTC_DCHECK(sink_);
LOG(LS_INFO) << "ConfigureEncoder requested.";
max_data_payload_length_ = max_data_payload_length;
encoder_config_ = std::move(config);
pending_encoder_reconfiguration_ = true;
// Reconfigure the encoder now if the encoder has an internal source or
// if this is the first time the encoder is configured.
// Otherwise, the reconfiguration is deferred until the next frame to minimize
// the number of reconfigurations. The codec configuration depends on incoming
// video frame size.
if (!last_frame_info_ || settings_.internal_source) {
if (!last_frame_info_) {
last_frame_info_ = rtc::Optional<VideoFrameInfo>(
VideoFrameInfo(176, 144, kVideoRotation_0, false));
}
ReconfigureEncoder();
}
}
void ViEEncoder::ReconfigureEncoder() {
RTC_DCHECK_RUN_ON(&encoder_queue_);
RTC_DCHECK(pending_encoder_reconfiguration_);
std::vector<VideoStream> streams =
encoder_config_.video_stream_factory->CreateEncoderStreams(
last_frame_info_->width, last_frame_info_->height, encoder_config_);
VideoCodec codec = VideoEncoderConfigToVideoCodec(
encoder_config_, streams, settings_.payload_name, settings_.payload_type);
codec.startBitrate =
std::max(encoder_start_bitrate_bps_ / 1000, codec.minBitrate);
codec.startBitrate = std::min(codec.startBitrate, codec.maxBitrate);
codec.expect_encode_from_texture = last_frame_info_->is_texture;
bool success = video_sender_.RegisterSendCodec(
&codec, number_of_cores_,
static_cast<uint32_t>(max_data_payload_length_)) == VCM_OK;
if (!success) {
LOG(LS_ERROR) << "Failed to configure encoder.";
RTC_DCHECK(success);
}
rate_allocator_.reset(new SimulcastRateAllocator(codec));
if (stats_proxy_) {
stats_proxy_->OnEncoderReconfigured(encoder_config_,
rate_allocator_->GetPreferedBitrate());
}
pending_encoder_reconfiguration_ = false;
if (stats_proxy_) {
stats_proxy_->OnEncoderReconfigured(encoder_config_,
rate_allocator_->GetPreferedBitrate());
}
sink_->OnEncoderConfigurationChanged(
std::move(streams), encoder_config_.min_transmit_bitrate_bps);
}
void ViEEncoder::OnFrame(const VideoFrame& video_frame) {
RTC_DCHECK_RUNS_SERIALIZED(&incoming_frame_race_checker_);
stats_proxy_->OnIncomingFrame(video_frame.width(), video_frame.height());
VideoFrame incoming_frame = video_frame;
// Local time in webrtc time base.
int64_t current_time = clock_->TimeInMilliseconds();
incoming_frame.set_render_time_ms(current_time);
// Capture time may come from clock with an offset and drift from clock_.
int64_t capture_ntp_time_ms;
if (video_frame.ntp_time_ms() != 0) {
capture_ntp_time_ms = video_frame.ntp_time_ms();
} else if (video_frame.render_time_ms() != 0) {
capture_ntp_time_ms = video_frame.render_time_ms() + delta_ntp_internal_ms_;
} else {
capture_ntp_time_ms = current_time + delta_ntp_internal_ms_;
}
incoming_frame.set_ntp_time_ms(capture_ntp_time_ms);
// Convert NTP time, in ms, to RTP timestamp.
const int kMsToRtpTimestamp = 90;
incoming_frame.set_timestamp(
kMsToRtpTimestamp * static_cast<uint32_t>(incoming_frame.ntp_time_ms()));
if (incoming_frame.ntp_time_ms() <= last_captured_timestamp_) {
// We don't allow the same capture time for two frames, drop this one.
LOG(LS_WARNING) << "Same/old NTP timestamp ("
<< incoming_frame.ntp_time_ms()
<< " <= " << last_captured_timestamp_
<< ") for incoming frame. Dropping.";
return;
}
bool log_stats = false;
if (current_time - last_frame_log_ms_ > kFrameLogIntervalMs) {
last_frame_log_ms_ = current_time;
log_stats = true;
}
last_captured_timestamp_ = incoming_frame.ntp_time_ms();
encoder_queue_.PostTask(std::unique_ptr<rtc::QueuedTask>(new EncodeTask(
incoming_frame, this, clock_->TimeInMilliseconds(), log_stats)));
}
bool ViEEncoder::EncoderPaused() const {
RTC_DCHECK_RUN_ON(&encoder_queue_);
// Pause video if paused by caller or as long as the network is down or the
// pacer queue has grown too large in buffered mode.
// If the pacer queue has grown too large or the network is down,
// last_observed_bitrate_bps_ will be 0.
return last_observed_bitrate_bps_ == 0;
}
void ViEEncoder::TraceFrameDropStart() {
RTC_DCHECK_RUN_ON(&encoder_queue_);
// Start trace event only on the first frame after encoder is paused.
if (!encoder_paused_and_dropped_frame_) {
TRACE_EVENT_ASYNC_BEGIN0("webrtc", "EncoderPaused", this);
}
encoder_paused_and_dropped_frame_ = true;
return;
}
void ViEEncoder::TraceFrameDropEnd() {
RTC_DCHECK_RUN_ON(&encoder_queue_);
// End trace event on first frame after encoder resumes, if frame was dropped.
if (encoder_paused_and_dropped_frame_) {
TRACE_EVENT_ASYNC_END0("webrtc", "EncoderPaused", this);
}
encoder_paused_and_dropped_frame_ = false;
}
void ViEEncoder::EncodeVideoFrame(const VideoFrame& video_frame,
int64_t time_when_posted_in_ms) {
RTC_DCHECK_RUN_ON(&encoder_queue_);
if (pre_encode_callback_)
pre_encode_callback_->OnFrame(video_frame);
if (video_frame.width() != last_frame_info_->width ||
video_frame.height() != last_frame_info_->height ||
video_frame.rotation() != last_frame_info_->rotation ||
video_frame.is_texture() != last_frame_info_->is_texture) {
pending_encoder_reconfiguration_ = true;
last_frame_info_ = rtc::Optional<VideoFrameInfo>(
VideoFrameInfo(video_frame.width(), video_frame.height(),
video_frame.rotation(), video_frame.is_texture()));
LOG(LS_INFO) << "Video frame parameters changed: dimensions="
<< last_frame_info_->width << "x" << last_frame_info_->height
<< ", rotation=" << last_frame_info_->rotation
<< ", texture=" << last_frame_info_->is_texture;
}
if (pending_encoder_reconfiguration_) {
ReconfigureEncoder();
}
if (EncoderPaused()) {
TraceFrameDropStart();
return;
}
TraceFrameDropEnd();
TRACE_EVENT_ASYNC_STEP0("webrtc", "Video", video_frame.render_time_ms(),
"Encode");
overuse_detector_.FrameCaptured(video_frame, time_when_posted_in_ms);
if (codec_type_ == webrtc::kVideoCodecVP8) {
webrtc::CodecSpecificInfo codec_specific_info;
codec_specific_info.codecType = webrtc::kVideoCodecVP8;
codec_specific_info.codecSpecific.VP8.hasReceivedRPSI =
has_received_rpsi_;
codec_specific_info.codecSpecific.VP8.hasReceivedSLI =
has_received_sli_;
codec_specific_info.codecSpecific.VP8.pictureIdRPSI =
picture_id_rpsi_;
codec_specific_info.codecSpecific.VP8.pictureIdSLI =
picture_id_sli_;
has_received_sli_ = false;
has_received_rpsi_ = false;
video_sender_.AddVideoFrame(video_frame, &codec_specific_info);
return;
}
video_sender_.AddVideoFrame(video_frame, nullptr);
}
void ViEEncoder::SendKeyFrame() {
if (!encoder_queue_.IsCurrent()) {
encoder_queue_.PostTask([this] { SendKeyFrame(); });
return;
}
RTC_DCHECK_RUN_ON(&encoder_queue_);
video_sender_.IntraFrameRequest(0);
}
EncodedImageCallback::Result ViEEncoder::OnEncodedImage(
const EncodedImage& encoded_image,
const CodecSpecificInfo* codec_specific_info,
const RTPFragmentationHeader* fragmentation) {
// Encoded is called on whatever thread the real encoder implementation run
// on. In the case of hardware encoders, there might be several encoders
// running in parallel on different threads.
if (stats_proxy_) {
stats_proxy_->OnSendEncodedImage(encoded_image, codec_specific_info);
}
EncodedImageCallback::Result result =
sink_->OnEncodedImage(encoded_image, codec_specific_info, fragmentation);
int64_t time_sent = clock_->TimeInMilliseconds();
uint32_t timestamp = encoded_image._timeStamp;
encoder_queue_.PostTask([this, timestamp, time_sent] {
RTC_DCHECK_RUN_ON(&encoder_queue_);
overuse_detector_.FrameSent(timestamp, time_sent);
});
return result;
}
void ViEEncoder::SendStatistics(uint32_t bit_rate, uint32_t frame_rate) {
RTC_DCHECK(module_process_thread_checker_.CalledOnValidThread());
if (stats_proxy_)
stats_proxy_->OnEncoderStatsUpdate(frame_rate, bit_rate);
}
void ViEEncoder::OnReceivedSLI(uint8_t picture_id) {
if (!encoder_queue_.IsCurrent()) {
encoder_queue_.PostTask([this, picture_id] { OnReceivedSLI(picture_id); });
return;
}
RTC_DCHECK_RUN_ON(&encoder_queue_);
picture_id_sli_ = picture_id;
has_received_sli_ = true;
}
void ViEEncoder::OnReceivedRPSI(uint64_t picture_id) {
if (!encoder_queue_.IsCurrent()) {
encoder_queue_.PostTask([this, picture_id] { OnReceivedRPSI(picture_id); });
return;
}
RTC_DCHECK_RUN_ON(&encoder_queue_);
picture_id_rpsi_ = picture_id;
has_received_rpsi_ = true;
}
void ViEEncoder::OnReceivedIntraFrameRequest(size_t stream_index) {
if (!encoder_queue_.IsCurrent()) {
encoder_queue_.PostTask(
[this, stream_index] { OnReceivedIntraFrameRequest(stream_index); });
return;
}
RTC_DCHECK_RUN_ON(&encoder_queue_);
// Key frame request from remote side, signal to VCM.
TRACE_EVENT0("webrtc", "OnKeyFrameRequest");
video_sender_.IntraFrameRequest(stream_index);
}
void ViEEncoder::OnBitrateUpdated(uint32_t bitrate_bps,
uint8_t fraction_lost,
int64_t round_trip_time_ms) {
if (!encoder_queue_.IsCurrent()) {
encoder_queue_.PostTask(
[this, bitrate_bps, fraction_lost, round_trip_time_ms] {
OnBitrateUpdated(bitrate_bps, fraction_lost, round_trip_time_ms);
});
return;
}
RTC_DCHECK_RUN_ON(&encoder_queue_);
RTC_DCHECK(sink_) << "sink_ must be set before the encoder is active.";
LOG(LS_VERBOSE) << "OnBitrateUpdated, bitrate " << bitrate_bps
<< " packet loss " << static_cast<int>(fraction_lost)
<< " rtt " << round_trip_time_ms;
video_sender_.SetChannelParameters(bitrate_bps, fraction_lost,
round_trip_time_ms);
encoder_start_bitrate_bps_ =
bitrate_bps != 0 ? bitrate_bps : encoder_start_bitrate_bps_;
bool video_is_suspended = bitrate_bps == 0;
bool video_suspension_changed =
video_is_suspended != (last_observed_bitrate_bps_ == 0);
last_observed_bitrate_bps_ = bitrate_bps;
if (stats_proxy_ && video_suspension_changed) {
LOG(LS_INFO) << "Video suspend state changed to: "
<< (video_is_suspended ? "suspended" : "not suspended");
stats_proxy_->OnSuspendChange(video_is_suspended);
}
}
void ViEEncoder::OveruseDetected() {
RTC_DCHECK_RUN_ON(&encoder_queue_);
// TODO(perkj): When ViEEncoder inherit rtc::VideoSink instead of
// VideoCaptureInput |load_observer_| should be removed and overuse be
// expressed as rtc::VideoSinkWants instead.
if (load_observer_)
load_observer_->OnLoadUpdate(LoadObserver::kOveruse);
}
void ViEEncoder::NormalUsage() {
RTC_DCHECK_RUN_ON(&encoder_queue_);
if (load_observer_)
load_observer_->OnLoadUpdate(LoadObserver::kUnderuse);
}
} // namespace webrtc