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