Switch browser side audio capture path to use base time primitives.

media/audio/android/opensles_input.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/audio/android/opensles_input.h"
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/trace_event/trace_event.h"
 #include "media/audio/android/audio_manager_android.h"
@@ skipping 24 matching lines @@
   format_.formatType = SL_DATAFORMAT_PCM;
   format_.numChannels = static_cast<SLuint32>(params.channels());
   // Provides sampling rate in milliHertz to OpenSLES.
   format_.samplesPerSec = static_cast<SLuint32>(params.sample_rate() * 1000);
   format_.bitsPerSample = params.bits_per_sample();
   format_.containerSize = params.bits_per_sample();
   format_.endianness = SL_BYTEORDER_LITTLEENDIAN;
   format_.channelMask = ChannelCountToSLESChannelMask(params.channels());
 
   buffer_size_bytes_ = params.GetBytesPerBuffer();
+  hardware_delay_ = base::TimeDelta::FromSecondsD(
+      params.frames_per_buffer() / static_cast<double>(params.sample_rate()));
 
   memset(&audio_data_, 0, sizeof(audio_data_));
 }
 
 OpenSLESInputStream::~OpenSLESInputStream() {
   DVLOG(2) << __PRETTY_FUNCTION__;
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK(!recorder_object_.Get());
   DCHECK(!engine_object_.Get());
   DCHECK(!recorder_);
@@ skipping 244 matching lines @@
 
   TRACE_EVENT0("audio", "OpenSLESOutputStream::ReadBufferQueue");
 
   // Convert from interleaved format to deinterleaved audio bus format.
   audio_bus_->FromInterleaved(audio_data_[active_buffer_index_],
                               audio_bus_->frames(),
                               format_.bitsPerSample / 8);
 
   // TODO(henrika): Investigate if it is possible to get an accurate
   // delay estimation.
-  callback_->OnData(this, audio_bus_.get(), buffer_size_bytes_, 0.0);
+  callback_->OnData(this, audio_bus_.get(), hardware_delay_,
+                    base::TimeTicks::Now(), 0.0);
 
   // Done with this buffer. Send it to device for recording.
   SLresult err =
       (*simple_buffer_queue_)->Enqueue(simple_buffer_queue_,
                                        audio_data_[active_buffer_index_],
                                        buffer_size_bytes_);
   if (SL_RESULT_SUCCESS != err)
     HandleError(err);
 
   active_buffer_index_ = (active_buffer_index_ + 1) % kMaxNumOfBuffersInQueue;
@@ skipping 17 matching lines @@
   }
 }
 
 void OpenSLESInputStream::HandleError(SLresult error) {
   DLOG(ERROR) << "OpenSLES Input error " << error;
   if (callback_)
     callback_->OnError(this);
 }
 
 }  // namespace media