mirror of
https://github.com/FFmpeg/FFmpeg.git
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113 lines
3.6 KiB
C
113 lines
3.6 KiB
C
/*
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* Copyright (c) 2015 Muhammad Faiz <mfcc64@gmail.com>
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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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#ifndef AVFILTER_AVF_SHOWCQT_H
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#define AVFILTER_AVF_SHOWCQT_H
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#include "libavcodec/avfft.h"
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#include "avfilter.h"
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#include "internal.h"
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typedef struct {
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FFTSample *val;
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int start, len;
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} Coeffs;
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enum CoeffsType {
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COEFFS_TYPE_DEFAULT,
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COEFFS_TYPE_INTERLEAVE
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};
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typedef struct {
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float r, g, b;
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} RGBFloat;
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typedef struct {
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float y, u, v;
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} YUVFloat;
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typedef union {
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RGBFloat rgb;
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YUVFloat yuv;
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} ColorFloat;
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typedef struct {
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const AVClass *class;
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AVFilterContext *ctx;
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AVFrame *axis_frame;
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AVFrame *sono_frame;
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enum AVPixelFormat format;
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int sono_idx;
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int sono_count;
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int step;
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AVRational step_frac;
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int remaining_frac;
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int remaining_fill;
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int64_t frame_count;
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double *freq;
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FFTContext *fft_ctx;
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Coeffs *coeffs;
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FFTComplex *fft_data;
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FFTComplex *fft_result;
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FFTComplex *cqt_result;
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int fft_bits;
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int fft_len;
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int cqt_len;
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int cqt_align;
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enum CoeffsType cqt_coeffs_type;
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ColorFloat *c_buf;
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float *h_buf;
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float *rcp_h_buf;
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float *sono_v_buf;
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float *bar_v_buf;
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/* callback */
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void (*cqt_calc)(FFTComplex *dst, const FFTComplex *src, const Coeffs *coeffs,
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int len, int fft_len);
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void (*draw_bar)(AVFrame *out, const float *h, const float *rcp_h,
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const ColorFloat *c, int bar_h);
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void (*draw_axis)(AVFrame *out, AVFrame *axis, const ColorFloat *c, int off);
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void (*draw_sono)(AVFrame *out, AVFrame *sono, int off, int idx);
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void (*update_sono)(AVFrame *sono, const ColorFloat *c, int idx);
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/* option */
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int width, height;
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AVRational rate;
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int bar_h;
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int axis_h;
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int sono_h;
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int fullhd; /* deprecated */
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char *sono_v;
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char *bar_v;
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float sono_g;
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float bar_g;
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double timeclamp;
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double basefreq;
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double endfreq;
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float coeffclamp; /* deprecated - ignored */
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char *tlength;
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int count;
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int fcount;
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char *fontfile;
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char *fontcolor;
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char *axisfile;
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int axis;
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} ShowCQTContext;
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#endif
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