opusdsp.h 1.2 KB

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  1. /*
  2. * This file is part of FFmpeg.
  3. *
  4. * FFmpeg is free software; you can redistribute it and/or
  5. * modify it under the terms of the GNU Lesser General Public
  6. * License as published by the Free Software Foundation; either
  7. * version 2.1 of the License, or (at your option) any later version.
  8. *
  9. * FFmpeg is distributed in the hope that it will be useful,
  10. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12. * Lesser General Public License for more details.
  13. *
  14. * You should have received a copy of the GNU Lesser General Public
  15. * License along with FFmpeg; if not, write to the Free Software
  16. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17. */
  18. #ifndef AVCODEC_OPUSDSP_H
  19. #define AVCODEC_OPUSDSP_H
  20. #include "libavutil/common.h"
  21. #define CELT_EMPH_COEFF 0.8500061035f
  22. typedef struct OpusDSP {
  23. void (*postfilter)(float *data, int period, float *gains, int len);
  24. float (*deemphasis)(float *out, float *in, float coeff, int len);
  25. } OpusDSP;
  26. void ff_opus_dsp_init(OpusDSP *ctx);
  27. void ff_opus_dsp_init_x86(OpusDSP *ctx);
  28. void ff_opus_dsp_init_aarch64(OpusDSP *ctx);
  29. #endif /* AVCODEC_OPUSDSP_H */