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- #ifndef MODULES_VIDEO_CODING_DEPRECATED_NACK_MODULE_H_
- #define MODULES_VIDEO_CODING_DEPRECATED_NACK_MODULE_H_
- #include <stdint.h>
- #include <map>
- #include <set>
- #include <vector>
- #include "api/units/time_delta.h"
- #include "modules/include/module.h"
- #include "modules/include/module_common_types.h"
- #include "modules/video_coding/histogram.h"
- #include "rtc_base/deprecation.h"
- #include "rtc_base/numerics/sequence_number_util.h"
- #include "rtc_base/synchronization/mutex.h"
- #include "rtc_base/thread_annotations.h"
- #include "system_wrappers/include/clock.h"
- namespace webrtc {
- class DEPRECATED_NackModule : public Module {
- public:
- DEPRECATED_NackModule(Clock* clock,
- NackSender* nack_sender,
- KeyFrameRequestSender* keyframe_request_sender);
- int OnReceivedPacket(uint16_t seq_num, bool is_keyframe);
- int OnReceivedPacket(uint16_t seq_num, bool is_keyframe, bool is_recovered);
- void ClearUpTo(uint16_t seq_num);
- void UpdateRtt(int64_t rtt_ms);
- void Clear();
-
- int64_t TimeUntilNextProcess() override;
- void Process() override;
- private:
-
-
- enum NackFilterOptions { kSeqNumOnly, kTimeOnly, kSeqNumAndTime };
-
-
-
- struct NackInfo {
- NackInfo();
- NackInfo(uint16_t seq_num,
- uint16_t send_at_seq_num,
- int64_t created_at_time);
- uint16_t seq_num;
- uint16_t send_at_seq_num;
- int64_t created_at_time;
- int64_t sent_at_time;
- int retries;
- };
- struct BackoffSettings {
- BackoffSettings(TimeDelta min_retry, TimeDelta max_rtt, double base);
- static absl::optional<BackoffSettings> ParseFromFieldTrials();
-
- const TimeDelta min_retry_interval;
-
- const TimeDelta max_rtt;
-
- const double base;
- };
- void AddPacketsToNack(uint16_t seq_num_start, uint16_t seq_num_end)
- RTC_EXCLUSIVE_LOCKS_REQUIRED(mutex_);
-
-
- bool RemovePacketsUntilKeyFrame() RTC_EXCLUSIVE_LOCKS_REQUIRED(mutex_);
- std::vector<uint16_t> GetNackBatch(NackFilterOptions options)
- RTC_EXCLUSIVE_LOCKS_REQUIRED(mutex_);
-
- void UpdateReorderingStatistics(uint16_t seq_num)
- RTC_EXCLUSIVE_LOCKS_REQUIRED(mutex_);
-
-
- int WaitNumberOfPackets(float probability) const
- RTC_EXCLUSIVE_LOCKS_REQUIRED(mutex_);
- Mutex mutex_;
- Clock* const clock_;
- NackSender* const nack_sender_;
- KeyFrameRequestSender* const keyframe_request_sender_;
-
-
-
- std::map<uint16_t, NackInfo, DescendingSeqNumComp<uint16_t>> nack_list_
- RTC_GUARDED_BY(mutex_);
- std::set<uint16_t, DescendingSeqNumComp<uint16_t>> keyframe_list_
- RTC_GUARDED_BY(mutex_);
- std::set<uint16_t, DescendingSeqNumComp<uint16_t>> recovered_list_
- RTC_GUARDED_BY(mutex_);
- video_coding::Histogram reordering_histogram_ RTC_GUARDED_BY(mutex_);
- bool initialized_ RTC_GUARDED_BY(mutex_);
- int64_t rtt_ms_ RTC_GUARDED_BY(mutex_);
- uint16_t newest_seq_num_ RTC_GUARDED_BY(mutex_);
-
- int64_t next_process_time_ms_;
-
- const int64_t send_nack_delay_ms_;
- const absl::optional<BackoffSettings> backoff_settings_;
- };
- using NackModule = RTC_DEPRECATED DEPRECATED_NackModule;
- }
- #endif
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