| OLD | NEW |
| 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 // MSVC++ requires this to be set before any other includes to get M_PI. | 4 // MSVC++ requires this to be set before any other includes to get M_PI. |
| 5 #define _USE_MATH_DEFINES | 5 #define _USE_MATH_DEFINES |
| 6 #include <cmath> | 6 #include <cmath> |
| 7 | 7 |
| 8 #include "media/audio/simple_sources.h" | 8 #include "media/audio/simple_sources.h" |
| 9 | 9 |
| 10 #include <algorithm> | 10 #include <algorithm> |
| (...skipping 30 matching lines...) Expand all Loading... |
| 41 std::min(audio_bus->frames(), cap_ - time_state_) : audio_bus->frames(); | 41 std::min(audio_bus->frames(), cap_ - time_state_) : audio_bus->frames(); |
| 42 for (int i = 0; i < max_frames; ++i) | 42 for (int i = 0; i < max_frames; ++i) |
| 43 audio_bus->channel(0)[i] = sin(2.0 * M_PI * f_ * time_state_++); | 43 audio_bus->channel(0)[i] = sin(2.0 * M_PI * f_ * time_state_++); |
| 44 for (int i = 1; i < audio_bus->channels(); ++i) { | 44 for (int i = 1; i < audio_bus->channels(); ++i) { |
| 45 memcpy(audio_bus->channel(i), audio_bus->channel(0), | 45 memcpy(audio_bus->channel(i), audio_bus->channel(0), |
| 46 max_frames * sizeof(*audio_bus->channel(i))); | 46 max_frames * sizeof(*audio_bus->channel(i))); |
| 47 } | 47 } |
| 48 return max_frames; | 48 return max_frames; |
| 49 } | 49 } |
| 50 | 50 |
| 51 int SineWaveAudioSource::OnMoreIOData(AudioBus* source, | |
| 52 AudioBus* dest, | |
| 53 AudioBuffersState audio_buffers) { | |
| 54 return OnMoreData(dest, audio_buffers); | |
| 55 } | |
| 56 | |
| 57 void SineWaveAudioSource::OnError(AudioOutputStream* stream) { | 51 void SineWaveAudioSource::OnError(AudioOutputStream* stream) { |
| 58 errors_++; | 52 errors_++; |
| 59 } | 53 } |
| 60 | 54 |
| 61 void SineWaveAudioSource::CapSamples(int cap) { | 55 void SineWaveAudioSource::CapSamples(int cap) { |
| 62 base::AutoLock auto_lock(time_lock_); | 56 base::AutoLock auto_lock(time_lock_); |
| 63 DCHECK_GT(cap, 0); | 57 DCHECK_GT(cap, 0); |
| 64 cap_ = cap; | 58 cap_ = cap; |
| 65 } | 59 } |
| 66 | 60 |
| 67 void SineWaveAudioSource::Reset() { | 61 void SineWaveAudioSource::Reset() { |
| 68 base::AutoLock auto_lock(time_lock_); | 62 base::AutoLock auto_lock(time_lock_); |
| 69 time_state_ = 0; | 63 time_state_ = 0; |
| 70 } | 64 } |
| 71 | 65 |
| 72 } // namespace media | 66 } // namespace media |
| OLD | NEW |