1 /* 2 * Copyright (c) 2016 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 11 #ifndef MODULES_AUDIO_MIXER_OUTPUT_RATE_CALCULATOR_H_ 12 #define MODULES_AUDIO_MIXER_OUTPUT_RATE_CALCULATOR_H_ 13 14 #include <vector> 15 16 #include "api/array_view.h" 17 18 namespace webrtc { 19 20 // Decides the sample rate of a mixing iteration given the preferred 21 // sample rates of the sources. 22 class OutputRateCalculator { 23 public: 24 virtual int CalculateOutputRateFromRange( 25 rtc::ArrayView<const int> preferred_sample_rates) = 0; 26 ~OutputRateCalculator()27 virtual ~OutputRateCalculator() {} 28 }; 29 30 } // namespace webrtc 31 32 #endif // MODULES_AUDIO_MIXER_OUTPUT_RATE_CALCULATOR_H_ 33