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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "media/base/audio_timestamp_helper.h" | 5 #include "media/base/audio_timestamp_helper.h" |
6 #include "media/base/timestamp_constants.h" | 6 #include "media/base/timestamp_constants.h" |
7 #include "testing/gtest/include/gtest/gtest.h" | 7 #include "testing/gtest/include/gtest/gtest.h" |
8 | 8 |
9 namespace media { | 9 namespace media { |
10 | 10 |
11 static const int kDefaultSampleRate = 44100; | 11 static const int kDefaultSampleRate = 44100; |
12 | 12 |
13 class AudioTimestampHelperTest : public ::testing::Test { | 13 class AudioTimestampHelperTest : public ::testing::Test { |
14 public: | 14 public: |
15 AudioTimestampHelperTest() : helper_(kDefaultSampleRate) { | 15 AudioTimestampHelperTest() : helper_(kDefaultSampleRate) { |
16 helper_.SetBaseTimestamp(base::TimeDelta()); | 16 helper_.SetBaseTimestamp(base::TimeDelta()); |
17 } | 17 } |
18 | 18 |
19 // Adds frames to the helper and returns the current timestamp in | 19 // Adds frames to the helper and returns the current timestamp in |
20 // microseconds. | 20 // microseconds. |
21 int64 AddFrames(int frames) { | 21 int64_t AddFrames(int frames) { |
22 helper_.AddFrames(frames); | 22 helper_.AddFrames(frames); |
23 return helper_.GetTimestamp().InMicroseconds(); | 23 return helper_.GetTimestamp().InMicroseconds(); |
24 } | 24 } |
25 | 25 |
26 int64 FramesToTarget(int target_in_microseconds) { | 26 int64_t FramesToTarget(int target_in_microseconds) { |
27 return helper_.GetFramesToTarget( | 27 return helper_.GetFramesToTarget( |
28 base::TimeDelta::FromMicroseconds(target_in_microseconds)); | 28 base::TimeDelta::FromMicroseconds(target_in_microseconds)); |
29 } | 29 } |
30 | 30 |
31 void TestGetFramesToTargetRange(int frame_count, int start, int end) { | 31 void TestGetFramesToTargetRange(int frame_count, int start, int end) { |
32 for (int i = start; i <= end; ++i) { | 32 for (int i = start; i <= end; ++i) { |
33 EXPECT_EQ(frame_count, FramesToTarget(i)) << " Failure for timestamp " | 33 EXPECT_EQ(frame_count, FramesToTarget(i)) << " Failure for timestamp " |
34 << i << " us."; | 34 << i << " us."; |
35 } | 35 } |
36 } | 36 } |
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66 helper_.AddFrames(5); | 66 helper_.AddFrames(5); |
67 EXPECT_EQ(113, helper_.GetTimestamp().InMicroseconds()); | 67 EXPECT_EQ(113, helper_.GetTimestamp().InMicroseconds()); |
68 EXPECT_TRUE(timestamp_1 == helper_.GetTimestamp()); | 68 EXPECT_TRUE(timestamp_1 == helper_.GetTimestamp()); |
69 } | 69 } |
70 | 70 |
71 | 71 |
72 TEST_F(AudioTimestampHelperTest, GetDuration) { | 72 TEST_F(AudioTimestampHelperTest, GetDuration) { |
73 helper_.SetBaseTimestamp(base::TimeDelta::FromMicroseconds(100)); | 73 helper_.SetBaseTimestamp(base::TimeDelta::FromMicroseconds(100)); |
74 | 74 |
75 int frame_count = 5; | 75 int frame_count = 5; |
76 int64 expected_durations[] = { 113, 113, 114, 113, 113, 114 }; | 76 int64_t expected_durations[] = {113, 113, 114, 113, 113, 114}; |
77 for (size_t i = 0; i < arraysize(expected_durations); ++i) { | 77 for (size_t i = 0; i < arraysize(expected_durations); ++i) { |
78 base::TimeDelta duration = helper_.GetFrameDuration(frame_count); | 78 base::TimeDelta duration = helper_.GetFrameDuration(frame_count); |
79 EXPECT_EQ(expected_durations[i], duration.InMicroseconds()); | 79 EXPECT_EQ(expected_durations[i], duration.InMicroseconds()); |
80 | 80 |
81 base::TimeDelta timestamp_1 = helper_.GetTimestamp() + duration; | 81 base::TimeDelta timestamp_1 = helper_.GetTimestamp() + duration; |
82 helper_.AddFrames(frame_count); | 82 helper_.AddFrames(frame_count); |
83 base::TimeDelta timestamp_2 = helper_.GetTimestamp(); | 83 base::TimeDelta timestamp_2 = helper_.GetTimestamp(); |
84 EXPECT_TRUE(timestamp_1 == timestamp_2); | 84 EXPECT_TRUE(timestamp_1 == timestamp_2); |
85 } | 85 } |
86 } | 86 } |
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113 // tested above to verify that the code is rounding properly. | 113 // tested above to verify that the code is rounding properly. |
114 TestGetFramesToTargetRange(0, 103, 124); | 114 TestGetFramesToTargetRange(0, 103, 124); |
115 TestGetFramesToTargetRange(-1, 80, 102); | 115 TestGetFramesToTargetRange(-1, 80, 102); |
116 TestGetFramesToTargetRange(-2, 57, 79); | 116 TestGetFramesToTargetRange(-2, 57, 79); |
117 TestGetFramesToTargetRange(-3, 35, 56); | 117 TestGetFramesToTargetRange(-3, 35, 56); |
118 TestGetFramesToTargetRange(-4, 12, 34); | 118 TestGetFramesToTargetRange(-4, 12, 34); |
119 TestGetFramesToTargetRange(-5, 0, 11); | 119 TestGetFramesToTargetRange(-5, 0, 11); |
120 } | 120 } |
121 | 121 |
122 } // namespace media | 122 } // namespace media |
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