2017-01-26 18:03:08 +02:00
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/*
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* Copyright (c) 2017 Paul B Mahol
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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2017-05-10 04:07:26 +02:00
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#ifndef AVFILTER_AFIR_H
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#define AVFILTER_AFIR_H
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2017-01-26 18:03:08 +02:00
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#include "libavutil/audio_fifo.h"
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#include "libavutil/common.h"
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#include "libavutil/float_dsp.h"
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#include "libavutil/opt.h"
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#include "libavcodec/avfft.h"
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#include "audio.h"
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#include "avfilter.h"
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#include "formats.h"
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#include "internal.h"
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#define MAX_IR_DURATION 30
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typedef struct AudioFIRContext {
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const AVClass *class;
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float wet_gain;
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float dry_gain;
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float length;
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int again;
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float gain;
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int eof_coeffs;
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int have_coeffs;
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int nb_coeffs;
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int nb_taps;
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int part_size;
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int part_index;
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int coeff_size;
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int block_size;
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int nb_partitions;
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int nb_channels;
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int ir_length;
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int fft_length;
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int nb_coef_channels;
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int one2many;
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int nb_samples;
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int want_skip;
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int need_padding;
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RDFTContext **rdft, **irdft;
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float **sum;
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float **block;
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FFTComplex **coeff;
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AVAudioFifo *fifo[2];
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AVFrame *in[2];
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AVFrame *buffer;
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int64_t pts;
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int index;
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AVFloatDSPContext *fdsp;
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void (*fcmul_add)(float *sum, const float *t, const float *c,
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ptrdiff_t len);
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} AudioFIRContext;
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void ff_afir_init_x86(AudioFIRContext *s);
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#endif /* AVFILTER_AFIR_H */
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