media/cast/test/utility/audio_utility_unittest.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "media/base/video_frame.h"
   6 #include "media/cast/test/utility/audio_utility.h"
   7 #include "testing/gtest/include/gtest/gtest.h"
   8
   9 namespace media {
  10 namespace cast {
  11 namespace test {
  12 namespace {
  13
  14 TEST(AudioTimestampTest, Small) {
  15   std::vector<float> samples(480);
  16   for (int32 in_timestamp = 0; in_timestamp < 65536; in_timestamp += 177) {
  17     EncodeTimestamp(in_timestamp, 0, samples.size(), &samples.front());
  18     uint16 out_timestamp;
  19     EXPECT_TRUE(
  20         DecodeTimestamp(&samples.front(), samples.size(), &out_timestamp));
  21     ASSERT_EQ(in_timestamp, out_timestamp);
  22   }
  23 }
  24
  25 TEST(AudioTimestampTest, Negative) {
  26   std::vector<float> samples(480);
  27   uint16 out_timestamp;
  28   EXPECT_FALSE(
  29       DecodeTimestamp(&samples.front(), samples.size(), &out_timestamp));
  30 }
  31
  32 TEST(AudioTimestampTest, CheckPhase) {
  33   std::vector<float> samples(4800);
  34   EncodeTimestamp(4711, 0, samples.size(), &samples.front());
  35   while (samples.size() > 240) {
  36     uint16 out_timestamp;
  37     EXPECT_TRUE(
  38         DecodeTimestamp(&samples.front(), samples.size(), &out_timestamp));
  39     ASSERT_EQ(4711, out_timestamp);
  40
  41     samples.erase(samples.begin(), samples.begin() + 73);
  42   }
  43 }
  44
  45 }  // namespace
  46 }  // namespace test
  47 }  // namespace cast
  48 }  // namespace media