1 /* Copyright 2017 The TensorFlow Authors. All Rights Reserved. 2 3 Licensed under the Apache License, Version 2.0 (the "License"); 4 you may not use this file except in compliance with the License. 5 You may obtain a copy of the License at 6 7 http://www.apache.org/licenses/LICENSE-2.0 8 9 Unless required by applicable law or agreed to in writing, software 10 distributed under the License is distributed on an "AS IS" BASIS, 11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 See the License for the specific language governing permissions and 13 limitations under the License. 14 ==============================================================================*/ 15 16 // Declarations for 2D FFT routines in third_party/fft2d/fft2d. 17 18 #ifndef FFT2D_FFT_H__ 19 #define FFT2D_FFT_H__ 20 21 #ifdef __cplusplus 22 extern "C" { 23 #endif 24 25 extern void cdft2d(int, int, int, double **, double *, int *, double *); 26 extern void rdft2d(int, int, int, double **, double *, int *, double *); 27 extern void ddct2d(int, int, int, double **, double *, int *, double *); 28 extern void ddst2d(int, int, int, double **, double *, int *, double *); 29 extern void ddct8x8s(int isgn, double **a); 30 extern void ddct16x16s(int isgn, double **a); 31 32 #ifdef __cplusplus 33 } 34 #endif 35 36 #endif // FFT2D_FFT_H__ 37