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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 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/time_delta_interpolator.h" | 5 #include "media/base/time_delta_interpolator.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 | 8 |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 #include "base/time/tick_clock.h" | 10 #include "base/time/tick_clock.h" |
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58 | 58 |
59 lower_bound_ = GetInterpolatedTime(); | 59 lower_bound_ = GetInterpolatedTime(); |
60 reference_ = tick_clock_->NowTicks(); | 60 reference_ = tick_clock_->NowTicks(); |
61 upper_bound_ = upper_bound; | 61 upper_bound_ = upper_bound; |
62 } | 62 } |
63 | 63 |
64 base::TimeDelta TimeDeltaInterpolator::GetInterpolatedTime() { | 64 base::TimeDelta TimeDeltaInterpolator::GetInterpolatedTime() { |
65 if (!interpolating_) | 65 if (!interpolating_) |
66 return lower_bound_; | 66 return lower_bound_; |
67 | 67 |
68 int64 now_us = (tick_clock_->NowTicks() - reference_).InMicroseconds(); | 68 int64_t now_us = (tick_clock_->NowTicks() - reference_).InMicroseconds(); |
69 now_us = static_cast<int64>(now_us * playback_rate_); | 69 now_us = static_cast<int64_t>(now_us * playback_rate_); |
70 base::TimeDelta interpolated_time = | 70 base::TimeDelta interpolated_time = |
71 lower_bound_ + base::TimeDelta::FromMicroseconds(now_us); | 71 lower_bound_ + base::TimeDelta::FromMicroseconds(now_us); |
72 | 72 |
73 if (upper_bound_ == kNoTimestamp()) | 73 if (upper_bound_ == kNoTimestamp()) |
74 return interpolated_time; | 74 return interpolated_time; |
75 | 75 |
76 return std::min(interpolated_time, upper_bound_); | 76 return std::min(interpolated_time, upper_bound_); |
77 } | 77 } |
78 | 78 |
79 } // namespace media | 79 } // namespace media |
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