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This CL was generated by running git ls-files | grep -P "(\.h|\.cc)$" | grep -v 'sdk/' | grep -v 'rtc_base/ssl_' | \ grep -v 'fake_rtc_certificate_generator.h' | grep -v 'modules/audio_device/win/' | \ grep -v 'system_wrappers/source/clock.cc' | grep -v 'rtc_base/trace_event.h' | \ grep -v 'modules/audio_coding/codecs/ilbc/' | grep -v 'screen_capturer_mac.h' | \ grep -v 'spl_inl_mips.h' | grep -v 'data_size_unittest.cc' | grep -v 'timestamp_unittest.cc' \ | xargs clang-format -i ; git cl format Most of these changes are clang-format grouping and reordering includes differently. Bug: webrtc:9340 Change-Id: Ic83ddbc169bfacd21883e381b5181c3dd4fe8a63 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/144051 Commit-Queue: Jonas Olsson <jonasolsson@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Cr-Commit-Position: refs/heads/master@{#28505}
113 lines
3.8 KiB
C++
113 lines
3.8 KiB
C++
/*
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* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MODULES_VIDEO_CODING_NACK_MODULE_H_
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#define MODULES_VIDEO_CODING_NACK_MODULE_H_
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#include <stdint.h>
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#include <map>
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#include <set>
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#include <vector>
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#include "modules/include/module.h"
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#include "modules/include/module_common_types.h"
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#include "modules/video_coding/histogram.h"
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#include "rtc_base/critical_section.h"
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#include "rtc_base/numerics/sequence_number_util.h"
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#include "rtc_base/thread_annotations.h"
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#include "system_wrappers/include/clock.h"
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namespace webrtc {
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class NackModule : public Module {
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public:
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NackModule(Clock* clock,
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NackSender* nack_sender,
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KeyFrameRequestSender* keyframe_request_sender);
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int OnReceivedPacket(uint16_t seq_num, bool is_keyframe);
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int OnReceivedPacket(uint16_t seq_num, bool is_keyframe, bool is_recovered);
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void ClearUpTo(uint16_t seq_num);
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void UpdateRtt(int64_t rtt_ms);
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void Clear();
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// Module implementation
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int64_t TimeUntilNextProcess() override;
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void Process() override;
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private:
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// Which fields to consider when deciding which packet to nack in
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// GetNackBatch.
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enum NackFilterOptions { kSeqNumOnly, kTimeOnly, kSeqNumAndTime };
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// This class holds the sequence number of the packet that is in the nack list
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// as well as the meta data about when it should be nacked and how many times
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// we have tried to nack this packet.
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struct NackInfo {
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NackInfo();
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NackInfo(uint16_t seq_num,
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uint16_t send_at_seq_num,
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int64_t created_at_time);
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uint16_t seq_num;
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uint16_t send_at_seq_num;
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int64_t created_at_time;
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int64_t sent_at_time;
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int retries;
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};
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void AddPacketsToNack(uint16_t seq_num_start, uint16_t seq_num_end)
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RTC_EXCLUSIVE_LOCKS_REQUIRED(crit_);
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// Removes packets from the nack list until the next keyframe. Returns true
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// if packets were removed.
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bool RemovePacketsUntilKeyFrame() RTC_EXCLUSIVE_LOCKS_REQUIRED(crit_);
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std::vector<uint16_t> GetNackBatch(NackFilterOptions options)
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RTC_EXCLUSIVE_LOCKS_REQUIRED(crit_);
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// Update the reordering distribution.
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void UpdateReorderingStatistics(uint16_t seq_num)
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RTC_EXCLUSIVE_LOCKS_REQUIRED(crit_);
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// Returns how many packets we have to wait in order to receive the packet
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// with probability |probabilty| or higher.
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int WaitNumberOfPackets(float probability) const
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RTC_EXCLUSIVE_LOCKS_REQUIRED(crit_);
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rtc::CriticalSection crit_;
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Clock* const clock_;
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NackSender* const nack_sender_;
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KeyFrameRequestSender* const keyframe_request_sender_;
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// TODO(philipel): Some of the variables below are consistently used on a
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// known thread (e.g. see |initialized_|). Those probably do not need
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// synchronized access.
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std::map<uint16_t, NackInfo, DescendingSeqNumComp<uint16_t>> nack_list_
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RTC_GUARDED_BY(crit_);
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std::set<uint16_t, DescendingSeqNumComp<uint16_t>> keyframe_list_
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RTC_GUARDED_BY(crit_);
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std::set<uint16_t, DescendingSeqNumComp<uint16_t>> recovered_list_
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RTC_GUARDED_BY(crit_);
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video_coding::Histogram reordering_histogram_ RTC_GUARDED_BY(crit_);
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bool initialized_ RTC_GUARDED_BY(crit_);
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int64_t rtt_ms_ RTC_GUARDED_BY(crit_);
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uint16_t newest_seq_num_ RTC_GUARDED_BY(crit_);
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// Only touched on the process thread.
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int64_t next_process_time_ms_;
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// Adds a delay before send nack on packet received.
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const int64_t send_nack_delay_ms_;
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};
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} // namespace webrtc
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#endif // MODULES_VIDEO_CODING_NACK_MODULE_H_
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