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- // Copyright (c) 2012 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #ifndef MEDIA_BASE_SAMPLE_RATES_H_
- #define MEDIA_BASE_SAMPLE_RATES_H_
- #include "media/base/media_export.h"
- namespace media {
- // Enumeration used for histogramming sample rates into distinct buckets.
- // Logged to UMA, so never reuse a value, always add new/greater ones!
- enum AudioSampleRate {
- k8000Hz = 0,
- k16000Hz = 1,
- k32000Hz = 2,
- k48000Hz = 3,
- k96000Hz = 4,
- k11025Hz = 5,
- k22050Hz = 6,
- k44100Hz = 7,
- k88200Hz = 8,
- k176400Hz = 9,
- k192000Hz = 10,
- k24000Hz = 11,
- k384000Hz = 12,
- k768000Hz = 13,
- // Must always equal the largest value ever reported:
- kAudioSampleRateMax = k768000Hz,
- };
- // Helper method to convert integral values to their respective enum values,
- // returns false for unexpected sample rates.
- MEDIA_EXPORT bool ToAudioSampleRate(int sample_rate, AudioSampleRate* asr);
- } // namespace media
- #endif // MEDIA_BASE_SAMPLE_RATES_H_
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