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 | 4 |
5 #include "media/audio/audio_input_device.h" | 5 #include "media/audio/audio_input_device.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/memory/scoped_vector.h" | 8 #include "base/memory/scoped_vector.h" |
9 #include "base/strings/stringprintf.h" | 9 #include "base/strings/stringprintf.h" |
10 #include "base/threading/thread_restrictions.h" | 10 #include "base/threading/thread_restrictions.h" |
(...skipping 22 matching lines...) Expand all Loading... |
33 CaptureCallback* capture_callback); | 33 CaptureCallback* capture_callback); |
34 ~AudioThreadCallback() override; | 34 ~AudioThreadCallback() override; |
35 | 35 |
36 void MapSharedMemory() override; | 36 void MapSharedMemory() override; |
37 | 37 |
38 // Called whenever we receive notifications about pending data. | 38 // Called whenever we receive notifications about pending data. |
39 void Process(uint32_t pending_data) override; | 39 void Process(uint32_t pending_data) override; |
40 | 40 |
41 private: | 41 private: |
42 int current_segment_id_; | 42 int current_segment_id_; |
43 uint32 last_buffer_id_; | 43 uint32_t last_buffer_id_; |
44 ScopedVector<media::AudioBus> audio_buses_; | 44 ScopedVector<media::AudioBus> audio_buses_; |
45 CaptureCallback* capture_callback_; | 45 CaptureCallback* capture_callback_; |
46 | 46 |
47 DISALLOW_COPY_AND_ASSIGN(AudioThreadCallback); | 47 DISALLOW_COPY_AND_ASSIGN(AudioThreadCallback); |
48 }; | 48 }; |
49 | 49 |
50 AudioInputDevice::AudioInputDevice( | 50 AudioInputDevice::AudioInputDevice( |
51 scoped_ptr<AudioInputIPC> ipc, | 51 scoped_ptr<AudioInputIPC> ipc, |
52 const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner) | 52 const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner) |
53 : ScopedTaskRunnerObserver(io_task_runner), | 53 : ScopedTaskRunnerObserver(io_task_runner), |
(...skipping 225 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
279 capture_callback_(capture_callback) { | 279 capture_callback_(capture_callback) { |
280 } | 280 } |
281 | 281 |
282 AudioInputDevice::AudioThreadCallback::~AudioThreadCallback() { | 282 AudioInputDevice::AudioThreadCallback::~AudioThreadCallback() { |
283 } | 283 } |
284 | 284 |
285 void AudioInputDevice::AudioThreadCallback::MapSharedMemory() { | 285 void AudioInputDevice::AudioThreadCallback::MapSharedMemory() { |
286 shared_memory_.Map(memory_length_); | 286 shared_memory_.Map(memory_length_); |
287 | 287 |
288 // Create vector of audio buses by wrapping existing blocks of memory. | 288 // Create vector of audio buses by wrapping existing blocks of memory. |
289 uint8* ptr = static_cast<uint8*>(shared_memory_.memory()); | 289 uint8_t* ptr = static_cast<uint8_t*>(shared_memory_.memory()); |
290 for (int i = 0; i < total_segments_; ++i) { | 290 for (int i = 0; i < total_segments_; ++i) { |
291 media::AudioInputBuffer* buffer = | 291 media::AudioInputBuffer* buffer = |
292 reinterpret_cast<media::AudioInputBuffer*>(ptr); | 292 reinterpret_cast<media::AudioInputBuffer*>(ptr); |
293 scoped_ptr<media::AudioBus> audio_bus = | 293 scoped_ptr<media::AudioBus> audio_bus = |
294 media::AudioBus::WrapMemory(audio_parameters_, buffer->audio); | 294 media::AudioBus::WrapMemory(audio_parameters_, buffer->audio); |
295 audio_buses_.push_back(audio_bus.Pass()); | 295 audio_buses_.push_back(audio_bus.Pass()); |
296 ptr += segment_length_; | 296 ptr += segment_length_; |
297 } | 297 } |
298 } | 298 } |
299 | 299 |
300 void AudioInputDevice::AudioThreadCallback::Process(uint32_t pending_data) { | 300 void AudioInputDevice::AudioThreadCallback::Process(uint32_t pending_data) { |
301 // The shared memory represents parameters, size of the data buffer and the | 301 // The shared memory represents parameters, size of the data buffer and the |
302 // actual data buffer containing audio data. Map the memory into this | 302 // actual data buffer containing audio data. Map the memory into this |
303 // structure and parse out parameters and the data area. | 303 // structure and parse out parameters and the data area. |
304 uint8* ptr = static_cast<uint8*>(shared_memory_.memory()); | 304 uint8_t* ptr = static_cast<uint8_t*>(shared_memory_.memory()); |
305 ptr += current_segment_id_ * segment_length_; | 305 ptr += current_segment_id_ * segment_length_; |
306 AudioInputBuffer* buffer = reinterpret_cast<AudioInputBuffer*>(ptr); | 306 AudioInputBuffer* buffer = reinterpret_cast<AudioInputBuffer*>(ptr); |
307 | 307 |
308 // Usually this will be equal but in the case of low sample rate (e.g. 8kHz, | 308 // Usually this will be equal but in the case of low sample rate (e.g. 8kHz, |
309 // the buffer may be bigger (on mac at least)). | 309 // the buffer may be bigger (on mac at least)). |
310 DCHECK_GE(buffer->params.size, | 310 DCHECK_GE(buffer->params.size, |
311 segment_length_ - sizeof(AudioInputBufferParameters)); | 311 segment_length_ - sizeof(AudioInputBufferParameters)); |
312 | 312 |
313 // Verify correct sequence. | 313 // Verify correct sequence. |
314 if (buffer->params.id != last_buffer_id_ + 1) { | 314 if (buffer->params.id != last_buffer_id_ + 1) { |
(...skipping 21 matching lines...) Expand all Loading... |
336 audio_bus, | 336 audio_bus, |
337 buffer->params.hardware_delay_bytes / bytes_per_ms_, // Delay in ms | 337 buffer->params.hardware_delay_bytes / bytes_per_ms_, // Delay in ms |
338 buffer->params.volume, | 338 buffer->params.volume, |
339 buffer->params.key_pressed); | 339 buffer->params.key_pressed); |
340 | 340 |
341 if (++current_segment_id_ >= total_segments_) | 341 if (++current_segment_id_ >= total_segments_) |
342 current_segment_id_ = 0; | 342 current_segment_id_ = 0; |
343 } | 343 } |
344 | 344 |
345 } // namespace media | 345 } // namespace media |
OLD | NEW |