| /* Copyright 2019 The TensorFlow Authors. All Rights Reserved. |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| ==============================================================================*/ |
| |
| #ifndef SIGNAL_SRC_FILTER_BANK_SQUARE_ROOT_H_ |
| #define SIGNAL_SRC_FILTER_BANK_SQUARE_ROOT_H_ |
| |
| #include <stdint.h> |
| |
| namespace tflite { |
| namespace tflm_signal { |
| // TODO(b/286250473): remove namespace once de-duped libraries above |
| |
| // Apply square root to each element in `input`, then shift right by |
| // `scale_down_bits` before writing the result to `output`, |
| // `input` and `output` must both be of size `num_channels` |
| void FilterbankSqrt(const uint64_t* input, int num_channels, |
| int scale_down_bits, uint32_t* output); |
| |
| } // namespace tflm_signal |
| } // namespace tflite |
| |
| #endif // SIGNAL_SRC_FILTER_BANK_SQUARE_ROOT_H_ |