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/*
* Copyright (c) 2016 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 MODULES_VIDEO_CODING_FEC_CONTROLLER_DEFAULT_H_
#define MODULES_VIDEO_CODING_FEC_CONTROLLER_DEFAULT_H_
#include <stddef.h>
#include <stdint.h>
#include <memory>
#include <vector>
#include "api/fec_controller.h"
#include "modules/video_coding/media_opt_util.h"
#include "rtc_base/synchronization/mutex.h"
#include "rtc_base/thread_annotations.h"
#include "system_wrappers/include/clock.h"
namespace webrtc {
class FecControllerDefault : public FecController {
public:
FecControllerDefault(Clock* clock,
VCMProtectionCallback* protection_callback);
explicit FecControllerDefault(Clock* clock);
~FecControllerDefault() override;
FecControllerDefault(const FecControllerDefault&) = delete;
FecControllerDefault& operator=(const FecControllerDefault&) = delete;
void SetProtectionCallback(
VCMProtectionCallback* protection_callback) override;
void SetProtectionMethod(bool enable_fec, bool enable_nack) override;
void SetEncodingData(size_t width,
size_t height,
size_t num_temporal_layers,
size_t max_payload_size) override;
uint32_t UpdateFecRates(uint32_t estimated_bitrate_bps,
int actual_framerate_fps,
uint8_t fraction_lost,
std::vector<bool> loss_mask_vector,
int64_t round_trip_time_ms) override;
void UpdateWithEncodedData(size_t encoded_image_length,
VideoFrameType encoded_image_frametype) override;
bool UseLossVectorMask() override;
float GetProtectionOverheadRateThreshold();
private:
enum { kBitrateAverageWinMs = 1000 };
Clock* const clock_;
VCMProtectionCallback* protection_callback_;
Mutex mutex_;
std::unique_ptr<media_optimization::VCMLossProtectionLogic> loss_prot_logic_
RTC_GUARDED_BY(mutex_);
size_t max_payload_size_ RTC_GUARDED_BY(mutex_);
const float overhead_threshold_;
};
} // namespace webrtc
#endif // MODULES_VIDEO_CODING_FEC_CONTROLLER_DEFAULT_H_
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