Reland of VCMCodecTimer: Change filter from max to 95th percentile

webrtc/modules/video_coding/timing.h

 /*
  *  Copyright (c) 2011 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 WEBRTC_MODULES_VIDEO_CODING_TIMING_H_
 #define WEBRTC_MODULES_VIDEO_CODING_TIMING_H_
 
+#include <memory>
+
 #include "webrtc/base/thread_annotations.h"
 #include "webrtc/modules/video_coding/codec_timer.h"
 #include "webrtc/system_wrappers/include/critical_section_wrapper.h"
 #include "webrtc/typedefs.h"
 
 namespace webrtc {
 
 class Clock;
 class TimestampExtrapolator;
 
@@ skipping 63 matching lines @@
                   int* current_delay_ms,
                   int* target_delay_ms,
                   int* jitter_buffer_ms,
                   int* min_playout_delay_ms,
                   int* render_delay_ms) const;
 
   enum { kDefaultRenderDelayMs = 10 };
   enum { kDelayMaxChangeMsPerS = 100 };
 
  protected:
-  int32_t MaxDecodeTimeMs(FrameType frame_type = kVideoFrameDelta) const
+  int64_t RequiredDecodeTimeMs() const
       EXCLUSIVE_LOCKS_REQUIRED(crit_sect_);
   int64_t RenderTimeMsInternal(uint32_t frame_timestamp, int64_t now_ms) const
       EXCLUSIVE_LOCKS_REQUIRED(crit_sect_);
   uint32_t TargetDelayInternal() const EXCLUSIVE_LOCKS_REQUIRED(crit_sect_);
 
  private:
   void UpdateHistograms() const;
 
   CriticalSectionWrapper* crit_sect_;
   Clock* const clock_;
   bool master_ GUARDED_BY(crit_sect_);
   TimestampExtrapolator* ts_extrapolator_ GUARDED_BY(crit_sect_);
-  VCMCodecTimer codec_timer_ GUARDED_BY(crit_sect_);
+  std::unique_ptr<VCMCodecTimer> codec_timer_ GUARDED_BY(crit_sect_);
   uint32_t render_delay_ms_ GUARDED_BY(crit_sect_);
   uint32_t min_playout_delay_ms_ GUARDED_BY(crit_sect_);
   uint32_t jitter_delay_ms_ GUARDED_BY(crit_sect_);
   uint32_t current_delay_ms_ GUARDED_BY(crit_sect_);
   int last_decode_ms_ GUARDED_BY(crit_sect_);
   uint32_t prev_frame_timestamp_ GUARDED_BY(crit_sect_);
 
   // Statistics.
   size_t num_decoded_frames_ GUARDED_BY(crit_sect_);
   size_t num_delayed_decoded_frames_ GUARDED_BY(crit_sect_);
   int64_t first_decoded_frame_ms_ GUARDED_BY(crit_sect_);
   uint64_t sum_missed_render_deadline_ms_ GUARDED_BY(crit_sect_);
 };
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_VIDEO_CODING_TIMING_H_