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/*
* Copyright 2019 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 "call/adaptation/resource.h"
#include "absl/algorithm/container.h"
#include "rtc_base/checks.h"
namespace webrtc {
ResourceListener::~ResourceListener() {}
Resource::Resource()
: encoder_queue_(nullptr),
resource_adaptation_queue_(nullptr),
usage_state_(absl::nullopt),
listener_(nullptr) {}
Resource::~Resource() {
RTC_DCHECK(!listener_)
<< "There is a listener depending on a Resource being destroyed.";
}
void Resource::Initialize(rtc::TaskQueue* encoder_queue,
rtc::TaskQueue* resource_adaptation_queue) {
RTC_DCHECK(!encoder_queue_);
RTC_DCHECK(encoder_queue);
RTC_DCHECK(!resource_adaptation_queue_);
RTC_DCHECK(resource_adaptation_queue);
encoder_queue_ = encoder_queue;
resource_adaptation_queue_ = resource_adaptation_queue;
}
void Resource::SetResourceListener(ResourceListener* listener) {
RTC_DCHECK(resource_adaptation_queue_);
RTC_DCHECK_RUN_ON(resource_adaptation_queue_);
// If you want to change listener you need to unregister the old listener by
// setting it to null first.
RTC_DCHECK(!listener_ || !listener) << "A listener is already set";
listener_ = listener;
}
absl::optional<ResourceUsageState> Resource::usage_state() const {
RTC_DCHECK(resource_adaptation_queue_);
RTC_DCHECK_RUN_ON(resource_adaptation_queue_);
return usage_state_;
}
void Resource::ClearUsageState() {
RTC_DCHECK(resource_adaptation_queue_);
RTC_DCHECK_RUN_ON(resource_adaptation_queue_);
usage_state_ = absl::nullopt;
}
bool Resource::IsAdaptationUpAllowed(
const VideoStreamInputState& input_state,
const VideoSourceRestrictions& restrictions_before,
const VideoSourceRestrictions& restrictions_after,
rtc::scoped_refptr<Resource> reason_resource) const {
return true;
}
void Resource::OnAdaptationApplied(
const VideoStreamInputState& input_state,
const VideoSourceRestrictions& restrictions_before,
const VideoSourceRestrictions& restrictions_after,
rtc::scoped_refptr<Resource> reason_resource) {}
rtc::TaskQueue* Resource::encoder_queue() const {
return encoder_queue_;
}
rtc::TaskQueue* Resource::resource_adaptation_queue() const {
return resource_adaptation_queue_;
}
void Resource::OnResourceUsageStateMeasured(ResourceUsageState usage_state) {
RTC_DCHECK(resource_adaptation_queue_);
RTC_DCHECK_RUN_ON(resource_adaptation_queue_);
usage_state_ = usage_state;
if (!listener_)
return;
listener_->OnResourceUsageStateMeasured(this);
}
} // namespace webrtc
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