diff options
author | Lynne <dev@lynne.ee> | 2019-03-15 17:35:03 +0300 |
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committer | Carl Eugen Hoyos <ceffmpeg@gmail.com> | 2019-04-01 01:19:14 +0300 |
commit | 0cea3ca8943b5a3f28a3672037f424b4d03853b8 (patch) | |
tree | c7056e3dca217790886df80a44d6ba5e2d24584c /libavcodec/opusdsp.h | |
parent | 5468c1d075166fa1a8fea217b07e30abc6bdc4b1 (diff) |
opusdsp: create and move deemphasis and postfiltering from opus_celt
Diffstat (limited to 'libavcodec/opusdsp.h')
-rw-r--r-- | libavcodec/opusdsp.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/libavcodec/opusdsp.h b/libavcodec/opusdsp.h new file mode 100644 index 0000000000..05bf2ba1a4 --- /dev/null +++ b/libavcodec/opusdsp.h @@ -0,0 +1,33 @@ +/* + * 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); + +#endif /* AVCODEC_OPUSDSP_H */ |