Handle padded audio packets correctly

webrtc/modules/audio_coding/neteq/delay_manager.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 77 matching lines @@
   virtual void BufferLimits(int* lower_limit, int* higher_limit) const;
 
   // Gets the target buffer level, in (fractions of) packets in Q8. This value
   // includes any extra delay set through the set_extra_delay_ms() method.
   virtual int TargetLevel() const;
 
   // Informs the delay manager whether or not the last decoded packet contained
   // speech.
   virtual void LastDecodedWasCngOrDtmf(bool it_was);
 
+  // Notify the delay manager that empty packets have been received. These are
+  // packets that are part of the sequence number series, so that an empty
+  // packet will shift the sequence numbers for the following packets.
+  virtual void RegisterEmptyPacket();
+
   // Accessors and mutators.
   // Assuming |delay| is in valid range.
   virtual bool SetMinimumDelay(int delay_ms);
   virtual bool SetMaximumDelay(int delay_ms);
   virtual int least_required_delay_ms() const;
   virtual int base_target_level() const;
   virtual void set_streaming_mode(bool value);
   virtual int last_pack_cng_or_dtmf() const;
   virtual void set_last_pack_cng_or_dtmf(int value);
 
@@ skipping 52 matching lines @@
   // Time elapsed since maximum was observed.
   std::unique_ptr<TickTimer::Stopwatch> max_iat_stopwatch_;
   DelayPeakDetector& peak_detector_;
   int last_pack_cng_or_dtmf_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(DelayManager);
 };
 
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_AUDIO_CODING_NETEQ_DELAY_MANAGER_H_