Cast: Reshuffle files under media/cast

media/cast/rtp_receiver/receiver_stats.cc

Index: media/cast/rtp_receiver/receiver_stats.cc
diff --git a/media/cast/rtp_receiver/receiver_stats.cc b/media/cast/rtp_receiver/receiver_stats.cc
deleted file mode 100644
index 7eff86763f88e8255177b41bdb3ac27f57035d72..0000000000000000000000000000000000000000
--- a/media/cast/rtp_receiver/receiver_stats.cc
+++ /dev/null
@@ -1,119 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "media/cast/rtp_receiver/receiver_stats.h"
-
-#include "base/logging.h"
-#include "media/cast/rtp_receiver/rtp_receiver_defines.h"
-
-namespace media {
-namespace cast {
-
-static const uint32 kMaxSequenceNumber = 65536;
-
-ReceiverStats::ReceiverStats(base::TickClock* clock)
-    : clock_(clock),
-      min_sequence_number_(0),
-      max_sequence_number_(0),
-      total_number_packets_(0),
-      sequence_number_cycles_(0),
-      interval_min_sequence_number_(0),
-      interval_number_packets_(0),
-      interval_wrap_count_(0) {}
-
-ReceiverStats::~ReceiverStats() {}
-
-void ReceiverStats::GetStatistics(uint8* fraction_lost,
-                                  uint32* cumulative_lost,
-                                  uint32* extended_high_sequence_number,
-                                  uint32* jitter) {
-  // Compute losses.
-  if (interval_number_packets_ == 0) {
-    *fraction_lost = 0;
-  } else {
-    int diff = 0;
-    if (interval_wrap_count_ == 0) {
-      diff = max_sequence_number_ - interval_min_sequence_number_ + 1;
-    } else {
-      diff = kMaxSequenceNumber * (interval_wrap_count_ - 1) +
-             (max_sequence_number_ - interval_min_sequence_number_ +
-              kMaxSequenceNumber + 1);
-    }
-
-    if (diff < 1) {
-      *fraction_lost = 0;
-    } else {
-      float tmp_ratio =
-          (1 - static_cast<float>(interval_number_packets_) / abs(diff));
-      *fraction_lost = static_cast<uint8>(256 * tmp_ratio);
-    }
-  }
-
-  int expected_packets_num = max_sequence_number_ - min_sequence_number_ + 1;
-  if (total_number_packets_ == 0) {
-    *cumulative_lost = 0;
-  } else if (sequence_number_cycles_ == 0) {
-    *cumulative_lost = expected_packets_num - total_number_packets_;
-  } else {
-    *cumulative_lost =
-        kMaxSequenceNumber * (sequence_number_cycles_ - 1) +
-        (expected_packets_num - total_number_packets_ + kMaxSequenceNumber);
-  }
-
-  // Extended high sequence number consists of the highest seq number and the
-  // number of cycles (wrap).
-  *extended_high_sequence_number =
-      (sequence_number_cycles_ << 16) + max_sequence_number_;
-
-  *jitter = static_cast<uint32>(std::abs(jitter_.InMillisecondsRoundedUp()));
-
-  // Reset interval values.
-  interval_min_sequence_number_ = 0;
-  interval_number_packets_ = 0;
-  interval_wrap_count_ = 0;
-}
-
-void ReceiverStats::UpdateStatistics(const RtpCastHeader& header) {
-  const uint16 new_seq_num = header.sequence_number;
-
-  if (interval_number_packets_ == 0) {
-    // First packet in the interval.
-    interval_min_sequence_number_ = new_seq_num;
-  }
-  if (total_number_packets_ == 0) {
-    // First incoming packet.
-    min_sequence_number_ = new_seq_num;
-    max_sequence_number_ = new_seq_num;
-  }
-
-  if (IsNewerSequenceNumber(new_seq_num, max_sequence_number_)) {
-    // Check wrap.
-    if (new_seq_num < max_sequence_number_) {
-      ++sequence_number_cycles_;
-      ++interval_wrap_count_;
-    }
-    max_sequence_number_ = new_seq_num;
-  }
-
-  // Compute Jitter.
-  base::TimeTicks now = clock_->NowTicks();
-  base::TimeDelta delta_new_timestamp =
-      base::TimeDelta::FromMilliseconds(header.rtp_timestamp);
-  if (total_number_packets_ > 0) {
-    // Update jitter.
-    base::TimeDelta delta =
-        (now - last_received_packet_time_) -
-        ((delta_new_timestamp - last_received_timestamp_) / 90);
-    jitter_ += (delta - jitter_) / 16;
-  }
-  last_received_timestamp_ = delta_new_timestamp;
-  last_received_packet_time_ = now;
-
-  // Increment counters.
-  ++total_number_packets_;
-  ++interval_number_packets_;
-}
-
-}  // namespace cast
-}  // namespace media