window_generator.h 987 B

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  1. /*
  2. * Copyright (c) 2014 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. #ifndef COMMON_AUDIO_WINDOW_GENERATOR_H_
  11. #define COMMON_AUDIO_WINDOW_GENERATOR_H_
  12. #include <stddef.h>
  13. namespace webrtc {
  14. // Helper class with generators for various signal transform windows.
  15. class WindowGenerator {
  16. public:
  17. WindowGenerator() = delete;
  18. WindowGenerator(const WindowGenerator&) = delete;
  19. WindowGenerator& operator=(const WindowGenerator&) = delete;
  20. static void Hanning(int length, float* window);
  21. static void KaiserBesselDerived(float alpha, size_t length, float* window);
  22. };
  23. } // namespace webrtc
  24. #endif // COMMON_AUDIO_WINDOW_GENERATOR_H_