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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stddef.h>
#include <stdint.h>
#include <memory>
#include <vector>
#include "base/time/tick_clock.h"
#include "base/time/time.h"
#include "media/cast/common/frame_id.h"
namespace media {
namespace cast {
class CongestionControl {
virtual ~CongestionControl();
// Called with latest measured rtt value.
virtual void UpdateRtt(base::TimeDelta rtt) = 0;
// Called with an updated target playout delay value.
virtual void UpdateTargetPlayoutDelay(base::TimeDelta delay) = 0;
// Called when an encoded frame is enqueued for transport.
virtual void SendFrameToTransport(FrameId frame_id,
size_t frame_size_in_bits,
base::TimeTicks when) = 0;
// Called when we receive an ACK for a frame.
virtual void AckFrame(FrameId frame_id, base::TimeTicks when) = 0;
// Called when the RTP receiver received frames that have frame ID larger
// than |last_acked_frame_|.
virtual void AckLaterFrames(std::vector<FrameId> received_frames,
base::TimeTicks when) = 0;
// Returns the bitrate we should use for the next frame.
virtual int GetBitrate(base::TimeTicks playout_time,
base::TimeDelta playout_delay) = 0;
CongestionControl* NewAdaptiveCongestionControl(const base::TickClock* clock,
int max_bitrate_configured,
int min_bitrate_configured,
double max_frame_rate);
CongestionControl* NewFixedCongestionControl(int bitrate);
} // namespace cast
} // namespace media