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#include <algorithm>
6#include <cstdio>
7#include <cstdlib>
8#include <vector>
9
10#include "base/basictypes.h"
11#include "base/logging.h"
12#include "media/cast/test/utility/audio_utility.h"
13
14const size_t kSamplingFrequency = 48000;
15
16int main(int argc, char **argv) {
17  if (argc < 3) {
18    fprintf(stderr, "Usage: %s <fps> <frames> >output.s16le\n", argv[0]);
19    exit(1);
20  }
21  int fps = atoi(argv[1]);
22  const uint32 frames = static_cast<uint32>(std::max(0, atoi(argv[2])));
23  std::vector<float> samples(kSamplingFrequency / fps);
24  size_t num_samples = 0;
25  for (uint32 frame_id = 1; frame_id <= frames; frame_id++) {
26    CHECK(media::cast::EncodeTimestamp(
27        frame_id, num_samples, samples.size(), &samples.front()));
28    num_samples += samples.size();
29    for (size_t i = 0; i < samples.size(); ++i) {
30      const int16 sample_s16 = static_cast<int16>(samples[i] * kint16max);
31      putchar(sample_s16 & 0xff);
32      putchar(sample_s16 >> 8);
33      putchar(sample_s16 & 0xff);
34      putchar(sample_s16 >> 8);
35    }
36  }
37}
38