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

media/audio/alsa/alsa_input.cc

 // Copyright 2013 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/alsa/alsa_input.h"
 
 #include <stddef.h>
 
 #include "base/bind.h"
 #include "base/location.h"
@@ skipping 182 matching lines @@
 
     base::TimeDelta next_check_time = buffer_duration_ / 2;
     base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
         FROM_HERE,
         base::Bind(&AlsaPcmInputStream::ReadAudio, weak_factory_.GetWeakPtr()),
         next_check_time);
     return;
   }
 
   int num_buffers = frames / params_.frames_per_buffer();
-  uint32_t hardware_delay_bytes =
-      static_cast<uint32_t>(GetCurrentDelay() * params_.GetBytesPerFrame());
+  base::TimeDelta hardware_delay = base::TimeDelta::FromSecondsD(
+      GetCurrentDelay() / static_cast<double>(params_.sample_rate()));
   double normalized_volume = 0.0;
 
   // Update the AGC volume level once every second. Note that, |volume| is
   // also updated each time SetVolume() is called through IPC by the
   // render-side AGC.
   GetAgcVolume(&normalized_volume);
 
   while (num_buffers--) {
     int frames_read = wrapper_->PcmReadi(device_handle_, audio_buffer_.get(),
                                          params_.frames_per_buffer());
     if (frames_read == params_.frames_per_buffer()) {
-      audio_bus_->FromInterleaved(audio_buffer_.get(),
-                                  audio_bus_->frames(),
+      audio_bus_->FromInterleaved(audio_buffer_.get(), audio_bus_->frames(),
                                   params_.bits_per_sample() / 8);
-      callback_->OnData(
-          this, audio_bus_.get(), hardware_delay_bytes, normalized_volume);
+      callback_->OnData(this, audio_bus_.get(), hardware_delay,
+                        base::TimeTicks::Now(), normalized_volume);
     } else {
       LOG(WARNING) << "PcmReadi returning less than expected frames: "
                    << frames_read << " vs. " << params_.frames_per_buffer()
                    << ". Dropping this buffer.";
     }
   }
 
   next_read_time_ += buffer_duration_;
   base::TimeDelta delay = next_read_time_ - base::TimeTicks::Now();
   if (delay < base::TimeDelta()) {
@@ skipping 111 matching lines @@
 bool AlsaPcmInputStream::IsMuted() {
   return false;
 }
 
 void AlsaPcmInputStream::HandleError(const char* method, int error) {
   LOG(WARNING) << method << ": " << wrapper_->StrError(error);
   callback_->OnError(this);
 }
 
 }  // namespace media