1/*
2 *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10#ifndef VOICE_ENGINE_MAIN_TEST_AUTO_TEST_FAKE_MEDIA_PROCESS_H_
11#define VOICE_ENGINE_MAIN_TEST_AUTO_TEST_FAKE_MEDIA_PROCESS_H_
12
13#include <math.h>
14
15class FakeMediaProcess : public webrtc::VoEMediaProcess {
16 public:
17  FakeMediaProcess() : frequency(0) {}
18  virtual void Process(int channel,
19                       const webrtc::ProcessingTypes type,
20                       int16_t audio_10ms[],
21                       size_t length,
22                       int sampling_freq_hz,
23                       bool stereo) {
24    for (size_t i = 0; i < length; i++) {
25      if (!stereo) {
26        audio_10ms[i] = static_cast<int16_t>(audio_10ms[i] *
27            sin(2.0 * 3.14 * frequency * 400.0 / sampling_freq_hz));
28      } else {
29        // Interleaved stereo.
30        audio_10ms[2 * i] = static_cast<int16_t> (
31            audio_10ms[2 * i] * sin(2.0 * 3.14 *
32                frequency * 400.0 / sampling_freq_hz));
33        audio_10ms[2 * i + 1] = static_cast<int16_t> (
34            audio_10ms[2 * i + 1] * sin(2.0 * 3.14 *
35                frequency * 400.0 / sampling_freq_hz));
36      }
37      frequency++;
38    }
39  }
40
41 private:
42  int frequency;
43};
44
45#endif  // VOICE_ENGINE_MAIN_TEST_AUTO_TEST_FAKE_MEDIA_PROCESS_H_
46