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/*
* Copyright 2020 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 "video/adaptation/encode_usage_resource.h"
#include <limits>
#include <utility>
#include "rtc_base/checks.h"
#include "rtc_base/ref_counted_object.h"
namespace webrtc {
// static
rtc::scoped_refptr<EncodeUsageResource> EncodeUsageResource::Create(
std::unique_ptr<OveruseFrameDetector> overuse_detector) {
return rtc::make_ref_counted<EncodeUsageResource>(
std::move(overuse_detector));
}
EncodeUsageResource::EncodeUsageResource(
std::unique_ptr<OveruseFrameDetector> overuse_detector)
: VideoStreamEncoderResource("EncoderUsageResource"),
overuse_detector_(std::move(overuse_detector)),
is_started_(false),
target_frame_rate_(absl::nullopt) {
RTC_DCHECK(overuse_detector_);
}
EncodeUsageResource::~EncodeUsageResource() {}
bool EncodeUsageResource::is_started() const {
RTC_DCHECK_RUN_ON(encoder_queue());
return is_started_;
}
void EncodeUsageResource::StartCheckForOveruse(CpuOveruseOptions options) {
RTC_DCHECK_RUN_ON(encoder_queue());
RTC_DCHECK(!is_started_);
overuse_detector_->StartCheckForOveruse(TaskQueueBase::Current(),
std::move(options), this);
is_started_ = true;
overuse_detector_->OnTargetFramerateUpdated(TargetFrameRateAsInt());
}
void EncodeUsageResource::StopCheckForOveruse() {
RTC_DCHECK_RUN_ON(encoder_queue());
overuse_detector_->StopCheckForOveruse();
is_started_ = false;
}
void EncodeUsageResource::SetTargetFrameRate(
absl::optional<double> target_frame_rate) {
RTC_DCHECK_RUN_ON(encoder_queue());
if (target_frame_rate == target_frame_rate_)
return;
target_frame_rate_ = target_frame_rate;
if (is_started_)
overuse_detector_->OnTargetFramerateUpdated(TargetFrameRateAsInt());
}
void EncodeUsageResource::OnEncodeStarted(const VideoFrame& cropped_frame,
int64_t time_when_first_seen_us) {
RTC_DCHECK_RUN_ON(encoder_queue());
// TODO(hbos): Rename FrameCaptured() to something more appropriate (e.g.
// "OnEncodeStarted"?) or revise usage.
overuse_detector_->FrameCaptured(cropped_frame, time_when_first_seen_us);
}
void EncodeUsageResource::OnEncodeCompleted(
uint32_t timestamp,
int64_t time_sent_in_us,
int64_t capture_time_us,
absl::optional<int> encode_duration_us) {
RTC_DCHECK_RUN_ON(encoder_queue());
// TODO(hbos): Rename FrameSent() to something more appropriate (e.g.
// "OnEncodeCompleted"?).
overuse_detector_->FrameSent(timestamp, time_sent_in_us, capture_time_us,
encode_duration_us);
}
void EncodeUsageResource::AdaptUp() {
RTC_DCHECK_RUN_ON(encoder_queue());
OnResourceUsageStateMeasured(ResourceUsageState::kUnderuse);
}
void EncodeUsageResource::AdaptDown() {
RTC_DCHECK_RUN_ON(encoder_queue());
OnResourceUsageStateMeasured(ResourceUsageState::kOveruse);
}
int EncodeUsageResource::TargetFrameRateAsInt() {
RTC_DCHECK_RUN_ON(encoder_queue());
return target_frame_rate_.has_value()
? static_cast<int>(target_frame_rate_.value())
: std::numeric_limits<int>::max();
}
} // namespace webrtc
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