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media / base / mac / audio_latency_mac.cc [blame]
// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "media/base/mac/audio_latency_mac.h"
#include "base/check_op.h"
#include "media/base/limits.h"
namespace media {
int GetMinAudioBufferSizeMacOS(int min_buffer_size, int sample_rate) {
int buffer_size = min_buffer_size;
if (sample_rate > 48000) {
// The default buffer size is too small for higher sample rates and may lead
// to glitching. Adjust upwards by multiples of the default size.
if (sample_rate <= 96000)
buffer_size = 2 * limits::kMinAudioBufferSize;
else if (sample_rate <= 192000)
buffer_size = 4 * limits::kMinAudioBufferSize;
}
DCHECK_EQ(limits::kMaxWebAudioBufferSize % buffer_size, 0);
return buffer_size;
}
} // namespace media