mirror of https://github.com/mpv-player/mpv
100 lines
2.7 KiB
C
100 lines
2.7 KiB
C
/*
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* Copyright (C) 2009 Loren Merritt <lorenm@u.washignton.edu>
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*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <inttypes.h>
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#include <math.h>
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#include "vf.h"
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#include "common/common.h"
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#include "options/m_option.h"
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#include "vf_lavfi.h"
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struct vf_priv_s {
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float cfg_thresh;
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int cfg_radius;
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float cfg_size;
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int radius;
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struct vf_lw_opts *lw_opts;
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} const vf_priv_dflt = {
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.cfg_thresh = 1.5,
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.cfg_radius = -1,
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.cfg_size = -1,
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};
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static void lavfi_recreate(struct vf_instance *vf)
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{
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struct vf_priv_s *p = vf_lw_old_priv(vf);
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int w = vf->fmt_in.w;
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int h = vf->fmt_in.h;
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p->radius = p->cfg_radius;
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if (p->cfg_size > -1)
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p->radius = (p->cfg_size / 100.0f) * sqrtf(w * w + h * h);
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p->radius = MPCLAMP((p->radius+1)&~1, 4, 32);
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vf_lw_update_graph(vf, "gradfun", "%f:%d", p->cfg_thresh, p->radius);
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}
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static int vf_open(vf_instance_t *vf)
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{
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bool have_radius = vf->priv->cfg_radius > -1;
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bool have_size = vf->priv->cfg_size > -1;
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if (have_radius && have_size) {
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MP_ERR(vf, "scale: gradfun: only one of "
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"radius/size parameters allowed at the same time!\n");
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return 0;
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}
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if (!have_radius && !have_size)
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vf->priv->cfg_size = 1.0;
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if (vf_lw_set_graph(vf, vf->priv->lw_opts, "gradfun", "%f:4",
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vf->priv->cfg_thresh) >= 0)
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{
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vf_lw_set_recreate_cb(vf, lavfi_recreate);
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return 1;
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}
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MP_FATAL(vf, "Requires libavfilter.\n");
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return 0;
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}
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#define OPT_BASE_STRUCT struct vf_priv_s
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static const m_option_t vf_opts_fields[] = {
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OPT_FLOATRANGE("strength", cfg_thresh, 0, 0.51, 255),
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OPT_INTRANGE("radius", cfg_radius, 0, 4, 32),
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OPT_FLOATRANGE("size", cfg_size, 0, 0.1, 5.0),
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OPT_SUBSTRUCT("", lw_opts, vf_lw_conf, 0),
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{0}
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};
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const vf_info_t vf_info_gradfun = {
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.description = "gradient deband",
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.name = "gradfun",
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.open = vf_open,
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.priv_size = sizeof(struct vf_priv_s),
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.priv_defaults = &vf_priv_dflt,
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.options = vf_opts_fields,
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};
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