d15a575ec3
Bug: webrtc:12419 Change-Id: I00cca16a0ec70246156ba00b97aa7ae5ccbf5364 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/205323 Commit-Queue: Artem Titov <titovartem@webrtc.org> Reviewed-by: Tommi <tommi@webrtc.org> Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/master@{#33220}
62 lines
2.1 KiB
C++
62 lines
2.1 KiB
C++
/*
|
|
* 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/balanced_constraint.h"
|
|
|
|
#include <string>
|
|
#include <utility>
|
|
|
|
#include "api/sequence_checker.h"
|
|
#include "rtc_base/task_utils/to_queued_task.h"
|
|
|
|
namespace webrtc {
|
|
|
|
BalancedConstraint::BalancedConstraint(
|
|
DegradationPreferenceProvider* degradation_preference_provider)
|
|
: encoder_target_bitrate_bps_(absl::nullopt),
|
|
degradation_preference_provider_(degradation_preference_provider) {
|
|
RTC_DCHECK(degradation_preference_provider_);
|
|
sequence_checker_.Detach();
|
|
}
|
|
|
|
void BalancedConstraint::OnEncoderTargetBitrateUpdated(
|
|
absl::optional<uint32_t> encoder_target_bitrate_bps) {
|
|
RTC_DCHECK_RUN_ON(&sequence_checker_);
|
|
encoder_target_bitrate_bps_ = std::move(encoder_target_bitrate_bps);
|
|
}
|
|
|
|
bool BalancedConstraint::IsAdaptationUpAllowed(
|
|
const VideoStreamInputState& input_state,
|
|
const VideoSourceRestrictions& restrictions_before,
|
|
const VideoSourceRestrictions& restrictions_after) const {
|
|
RTC_DCHECK_RUN_ON(&sequence_checker_);
|
|
// Don't adapt if BalancedDegradationSettings applies and determines this will
|
|
// exceed bitrate constraints.
|
|
if (degradation_preference_provider_->degradation_preference() ==
|
|
DegradationPreference::BALANCED) {
|
|
if (!balanced_settings_.CanAdaptUp(
|
|
input_state.video_codec_type(),
|
|
input_state.frame_size_pixels().value(),
|
|
encoder_target_bitrate_bps_.value_or(0))) {
|
|
return false;
|
|
}
|
|
if (DidIncreaseResolution(restrictions_before, restrictions_after) &&
|
|
!balanced_settings_.CanAdaptUpResolution(
|
|
input_state.video_codec_type(),
|
|
input_state.frame_size_pixels().value(),
|
|
encoder_target_bitrate_bps_.value_or(0))) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
} // namespace webrtc
|