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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.
*/
#ifndef CALL_ADAPTATION_ADAPTATION_CONSTRAINT_H_
#define CALL_ADAPTATION_ADAPTATION_CONSTRAINT_H_
#include <string>
#include "api/adaptation/resource.h"
#include "call/adaptation/video_source_restrictions.h"
#include "call/adaptation/video_stream_input_state.h"
namespace webrtc {
// Adaptation constraints have the ability to prevent applying a proposed
// adaptation (expressed as restrictions before/after adaptation).
class AdaptationConstraint {
public:
virtual ~AdaptationConstraint();
virtual std::string Name() const = 0;
// TODO(https://crbug.com/webrtc/11172): When we have multi-stream adaptation
// support, this interface needs to indicate which stream the adaptation
// applies to.
virtual bool IsAdaptationUpAllowed(
const VideoStreamInputState& input_state,
const VideoSourceRestrictions& restrictions_before,
const VideoSourceRestrictions& restrictions_after) const = 0;
};
} // namespace webrtc
#endif // CALL_ADAPTATION_ADAPTATION_CONSTRAINT_H_
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