[Cast] Repair receiver playout time calculations and frame skip logic.

media/cast/audio_sender/audio_sender_unittest.cc

 // 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 <stdint.h>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/test/simple_test_tick_clock.h"
 #include "media/base/media.h"
 #include "media/cast/audio_sender/audio_sender.h"
 #include "media/cast/cast_config.h"
 #include "media/cast/cast_environment.h"
 #include "media/cast/rtcp/rtcp.h"
 #include "media/cast/test/fake_single_thread_task_runner.h"
 #include "media/cast/test/utility/audio_utility.h"
 #include "media/cast/transport/cast_transport_config.h"
 #include "media/cast/transport/cast_transport_sender_impl.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace media {
 namespace cast {
 
-static const int64 kStartMillisecond = INT64_C(12345678900000);
-
 class TestPacketSender : public transport::PacketSender {
  public:
   TestPacketSender() : number_of_rtp_packets_(0), number_of_rtcp_packets_(0) {}
 
   virtual bool SendPacket(transport::PacketRef packet,
                           const base::Closure& cb) OVERRIDE {
     if (Rtcp::IsRtcpPacket(&packet->data[0], packet->data.size())) {
       ++number_of_rtcp_packets_;
     } else {
       ++number_of_rtp_packets_;
@@ skipping 10 matching lines @@
   int number_of_rtcp_packets_;
 
   DISALLOW_COPY_AND_ASSIGN(TestPacketSender);
 };
 
 class AudioSenderTest : public ::testing::Test {
  protected:
   AudioSenderTest() {
     InitializeMediaLibraryForTesting();
     testing_clock_ = new base::SimpleTestTickClock();
-    testing_clock_->Advance(
-        base::TimeDelta::FromMilliseconds(kStartMillisecond));
+    testing_clock_->Advance(base::TimeTicks::Now() - base::TimeTicks());
     task_runner_ = new test::FakeSingleThreadTaskRunner(testing_clock_);
     cast_environment_ =
         new CastEnvironment(scoped_ptr<base::TickClock>(testing_clock_).Pass(),
                             task_runner_,
                             task_runner_,
                             task_runner_);
     audio_config_.codec = transport::kOpus;
     audio_config_.use_external_encoder = false;
     audio_config_.frequency = kDefaultAudioSamplingRate;
     audio_config_.channels = 2;
@@ skipping 61 matching lines @@
   base::TimeDelta max_rtcp_timeout =
       base::TimeDelta::FromMilliseconds(1 + kDefaultRtcpIntervalMs * 3 / 2);
   testing_clock_->Advance(max_rtcp_timeout);
   task_runner_->RunTasks();
   EXPECT_GE(transport_.number_of_rtp_packets(), 1);
   EXPECT_EQ(transport_.number_of_rtcp_packets(), 1);
 }
 
 }  // namespace cast
 }  // namespace media