chrome/browser/media/webrtc_browsertest_audio.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_MEDIA_WEBRTC_BROWSERTEST_AUDIO_H_
   6 #define CHROME_BROWSER_MEDIA_WEBRTC_BROWSERTEST_AUDIO_H_
   7
   8 #include <vector>
   9
  10 namespace base {
  11 class FilePath;
  12 }
  13
  14 namespace media {
  15 class AudioParameters;
  16 }
  17
  18 namespace test {
  19
  20 // Computes the average power of the audio signal seen over the entire file.
  21 //
  22 // The |file_parameters| pointer is filled with a copy of the audio file's
  23 // parameters as deduced by wav_audio_handler.h (i.e. what's in the header).
  24 //
  25 // Returns a audio dBFS (decibels relative to full-scale) value.
  26 // See media/audio/audio_power_monitor.h for more details.
  27 float ComputeAudioEnergyForWavFile(const base::FilePath& wav_file_path,
  28                                    media::AudioParameters* file_parameters);
  29
  30 }  // namespace test
  31
  32 #endif  // CHROME_BROWSER_MEDIA_WEBRTC_BROWSERTEST_AUDIO_H_