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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/renderers/audio_renderer_impl.h" | 5 #include "media/renderers/audio_renderer_impl.h" |
6 | 6 |
7 #include <math.h> | 7 #include <math.h> |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 #include <algorithm> | 9 #include <algorithm> |
10 #include <utility> | 10 #include <utility> |
11 | 11 |
12 #include "base/bind.h" | 12 #include "base/bind.h" |
13 #include "base/callback.h" | 13 #include "base/callback.h" |
14 #include "base/callback_helpers.h" | 14 #include "base/callback_helpers.h" |
15 #include "base/command_line.h" | 15 #include "base/command_line.h" |
16 #include "base/logging.h" | 16 #include "base/logging.h" |
17 #include "base/power_monitor/power_monitor.h" | 17 #include "base/power_monitor/power_monitor.h" |
18 #include "base/single_thread_task_runner.h" | 18 #include "base/single_thread_task_runner.h" |
19 #include "base/time/default_tick_clock.h" | 19 #include "base/time/default_tick_clock.h" |
20 #include "build/build_config.h" | 20 #include "build/build_config.h" |
21 #include "media/base/audio_buffer.h" | 21 #include "media/base/audio_buffer.h" |
22 #include "media/base/audio_buffer_converter.h" | 22 #include "media/base/audio_buffer_converter.h" |
23 #include "media/base/audio_hardware_config.h" | 23 #include "media/base/audio_latency.h" |
24 #include "media/base/audio_splicer.h" | 24 #include "media/base/audio_splicer.h" |
25 #include "media/base/bind_to_current_loop.h" | 25 #include "media/base/bind_to_current_loop.h" |
26 #include "media/base/demuxer_stream.h" | 26 #include "media/base/demuxer_stream.h" |
27 #include "media/base/media_log.h" | 27 #include "media/base/media_log.h" |
28 #include "media/base/media_switches.h" | 28 #include "media/base/media_switches.h" |
29 #include "media/base/renderer_client.h" | 29 #include "media/base/renderer_client.h" |
30 #include "media/base/timestamp_constants.h" | 30 #include "media/base/timestamp_constants.h" |
31 #include "media/filters/audio_clock.h" | 31 #include "media/filters/audio_clock.h" |
32 #include "media/filters/decrypting_demuxer_stream.h" | 32 #include "media/filters/decrypting_demuxer_stream.h" |
33 | 33 |
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435 // renderer. Browser-side will down-mix to the hardware config. If the | 435 // renderer. Browser-side will down-mix to the hardware config. If the |
436 // hardware later changes to equal stream channels, browser-side will stop | 436 // hardware later changes to equal stream channels, browser-side will stop |
437 // down-mixing and use the data from all stream channels. | 437 // down-mixing and use the data from all stream channels. |
438 ChannelLayout renderer_channel_layout = | 438 ChannelLayout renderer_channel_layout = |
439 hw_channel_count > stream_channel_count | 439 hw_channel_count > stream_channel_count |
440 ? hw_channel_layout | 440 ? hw_channel_layout |
441 : stream->audio_decoder_config().channel_layout(); | 441 : stream->audio_decoder_config().channel_layout(); |
442 | 442 |
443 audio_parameters_.Reset(hw_params.format(), renderer_channel_layout, | 443 audio_parameters_.Reset(hw_params.format(), renderer_channel_layout, |
444 sample_rate, hw_params.bits_per_sample(), | 444 sample_rate, hw_params.bits_per_sample(), |
445 AudioHardwareConfig::GetHighLatencyBufferSize( | 445 media::AudioLatency::GetHighLatencyBufferSize( |
446 sample_rate, preferred_buffer_size)); | 446 sample_rate, preferred_buffer_size)); |
447 } | 447 } |
448 | 448 |
449 audio_clock_.reset( | 449 audio_clock_.reset( |
450 new AudioClock(base::TimeDelta(), audio_parameters_.sample_rate())); | 450 new AudioClock(base::TimeDelta(), audio_parameters_.sample_rate())); |
451 | 451 |
452 audio_buffer_stream_->Initialize( | 452 audio_buffer_stream_->Initialize( |
453 stream, base::Bind(&AudioRendererImpl::OnAudioBufferStreamInitialized, | 453 stream, base::Bind(&AudioRendererImpl::OnAudioBufferStreamInitialized, |
454 weak_factory_.GetWeakPtr()), | 454 weak_factory_.GetWeakPtr()), |
455 cdm_context, base::Bind(&AudioRendererImpl::OnStatisticsUpdate, | 455 cdm_context, base::Bind(&AudioRendererImpl::OnStatisticsUpdate, |
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967 DCHECK_NE(buffering_state_, buffering_state); | 967 DCHECK_NE(buffering_state_, buffering_state); |
968 lock_.AssertAcquired(); | 968 lock_.AssertAcquired(); |
969 buffering_state_ = buffering_state; | 969 buffering_state_ = buffering_state; |
970 | 970 |
971 task_runner_->PostTask( | 971 task_runner_->PostTask( |
972 FROM_HERE, base::Bind(&AudioRendererImpl::OnBufferingStateChange, | 972 FROM_HERE, base::Bind(&AudioRendererImpl::OnBufferingStateChange, |
973 weak_factory_.GetWeakPtr(), buffering_state_)); | 973 weak_factory_.GetWeakPtr(), buffering_state_)); |
974 } | 974 } |
975 | 975 |
976 } // namespace media | 976 } // namespace media |
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