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 "components/copresence/test/audio_test_support.h" 6 7 #include <cstdlib> 8 9 #include "media/base/audio_bus.h" 10 11 namespace copresence { 12 13 void PopulateSamples(int random_seed, size_t size, float* samples) { 14 srand(random_seed); 15 for (size_t i = 0; i < size; ++i) 16 samples[i] = (2.0 * rand() / RAND_MAX) - 1; 17 } 18 19 scoped_ptr<media::AudioBus> CreateRandomAudio(int random_seed, 20 int channels, 21 int samples) { 22 scoped_ptr<media::AudioBus> bus = media::AudioBus::Create(channels, samples); 23 for (int ch = 0; ch < channels; ++ch) 24 PopulateSamples(random_seed, samples, bus->channel(ch)); 25 return bus.Pass(); 26 } 27 28 scoped_refptr<media::AudioBusRefCounted> 29 CreateRandomAudioRefCounted(int random_seed, int channels, int samples) { 30 scoped_refptr<media::AudioBusRefCounted> bus = 31 media::AudioBusRefCounted::Create(channels, samples); 32 for (int ch = 0; ch < channels; ++ch) 33 PopulateSamples(random_seed, samples, bus->channel(ch)); 34 return bus; 35 } 36 37 } // namespace copresence 38
