Let alr dectector use a budged to detect underuse.

webrtc/modules/pacing/paced_sender.h

 /*
  *  Copyright (c) 2012 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.
  */
 
@@ skipping 10 matching lines @@
 #include "webrtc/rtc_base/optional.h"
 #include "webrtc/rtc_base/thread_annotations.h"
 #include "webrtc/typedefs.h"
 
 namespace webrtc {
 class AlrDetector;
 class BitrateProber;
 class Clock;
 class ProbeClusterCreatedObserver;
 class RtcEventLog;
+class IntervalBudget;
 
 namespace paced_sender {
-class IntervalBudget;
 struct Packet;
 class PacketQueue;
 }  // namespace paced_sender
 
 class PacedSender : public Module, public RtpPacketSender {
  public:
   class PacketSender {
    public:
     // Note: packets sent as a result of a callback should not pass by this
     // module again.
@@ skipping 122 matching lines @@
       EXCLUSIVE_LOCKS_REQUIRED(critsect_);
 
   const Clock* const clock_;
   PacketSender* const packet_sender_;
   std::unique_ptr<AlrDetector> alr_detector_ GUARDED_BY(critsect_);
 
   rtc::CriticalSection critsect_;
   bool paused_ GUARDED_BY(critsect_);
   // This is the media budget, keeping track of how many bits of media
   // we can pace out during the current interval.
-  std::unique_ptr<paced_sender::IntervalBudget> media_budget_
-      GUARDED_BY(critsect_);
+  std::unique_ptr<IntervalBudget> media_budget_ GUARDED_BY(critsect_);
   // This is the padding budget, keeping track of how many bits of padding we're
   // allowed to send out during the current interval. This budget will be
   // utilized when there's no media to send.
-  std::unique_ptr<paced_sender::IntervalBudget> padding_budget_
-      GUARDED_BY(critsect_);
+  std::unique_ptr<IntervalBudget> padding_budget_ GUARDED_BY(critsect_);
 
   std::unique_ptr<BitrateProber> prober_ GUARDED_BY(critsect_);
   bool probing_send_failure_;
   // Actual configured bitrates (media_budget_ may temporarily be higher in
   // order to meet pace time constraint).
   uint32_t estimated_bitrate_bps_ GUARDED_BY(critsect_);
   uint32_t min_send_bitrate_kbps_ GUARDED_BY(critsect_);
   uint32_t max_padding_bitrate_kbps_ GUARDED_BY(critsect_);
   uint32_t pacing_bitrate_kbps_ GUARDED_BY(critsect_);
 
   int64_t time_last_update_us_ GUARDED_BY(critsect_);
   int64_t first_sent_packet_ms_ GUARDED_BY(critsect_);
 
   std::unique_ptr<paced_sender::PacketQueue> packets_ GUARDED_BY(critsect_);
   uint64_t packet_counter_;
   ProcessThread* process_thread_ = nullptr;
 
   float pacing_factor_ GUARDED_BY(critsect_);
   int64_t queue_time_limit GUARDED_BY(critsect_);
 };
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_PACING_PACED_SENDER_H_