2010-04-07 01:05:24 +00:00
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/*
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2010-11-28 10:22:58 +00:00
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* Original copyright (c) 2002 Remi Guyomarch <rguyom@pobox.com>
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* Port copyright (c) 2010 Daniel G. Taylor <dan@programmer-art.org>
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2010-04-07 01:05:24 +00:00
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* Relicensed to the LGPL with permission from Remi Guyomarch.
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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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/**
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2010-04-20 14:45:34 +00:00
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* @file
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2010-11-28 10:22:58 +00:00
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* blur / sharpen filter, ported to FFmpeg from MPlayer
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* libmpcodecs/unsharp.c.
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2010-04-07 01:05:24 +00:00
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*
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* This code is based on:
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*
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* An Efficient algorithm for Gaussian blur using finite-state machines
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* Frederick M. Waltz and John W. V. Miller
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*
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* SPIE Conf. on Machine Vision Systems for Inspection and Metrology VII
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* Originally published Boston, Nov 98
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*
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* http://www.engin.umd.umich.edu/~jwvm/ece581/21_GBlur.pdf
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*/
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#include "avfilter.h"
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2012-05-30 08:12:55 +00:00
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#include "formats.h"
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2012-06-12 18:12:42 +00:00
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#include "internal.h"
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2012-05-30 09:20:32 +00:00
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#include "video.h"
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2010-04-07 01:05:24 +00:00
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#include "libavutil/common.h"
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2013-05-16 11:36:42 +00:00
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#include "libavutil/imgutils.h"
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2010-04-07 01:05:24 +00:00
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#include "libavutil/mem.h"
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2011-08-12 23:08:48 +00:00
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#include "libavutil/opt.h"
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2010-04-07 01:05:24 +00:00
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#include "libavutil/pixdesc.h"
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2013-04-25 11:32:13 +00:00
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#include "unsharp.h"
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2010-04-07 01:05:24 +00:00
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2019-05-07 01:46:33 +00:00
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typedef struct TheadData {
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UnsharpFilterParam *fp;
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uint8_t *dst;
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const uint8_t *src;
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int dst_stride;
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int src_stride;
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int width;
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int height;
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} ThreadData;
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2019-10-14 10:27:05 +00:00
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#define DEF_UNSHARP_SLICE_FUNC(name, nbits) \
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static int name##_##nbits(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \
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{ \
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ThreadData *td = arg; \
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UnsharpFilterParam *fp = td->fp; \
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UnsharpContext *s = ctx->priv; \
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uint32_t **sc = fp->sc; \
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uint32_t *sr = fp->sr; \
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const uint##nbits##_t *src2 = NULL; \
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const int amount = fp->amount; \
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const int steps_x = fp->steps_x; \
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const int steps_y = fp->steps_y; \
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const int scalebits = fp->scalebits; \
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const int32_t halfscale = fp->halfscale; \
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\
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uint##nbits##_t *dst = (uint##nbits##_t*)td->dst; \
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const uint##nbits##_t *src = (const uint##nbits##_t *)td->src; \
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int dst_stride = td->dst_stride; \
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int src_stride = td->src_stride; \
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const int width = td->width; \
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const int height = td->height; \
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const int sc_offset = jobnr * 2 * steps_y; \
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const int sr_offset = jobnr * (MAX_MATRIX_SIZE - 1); \
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const int slice_start = (height * jobnr) / nb_jobs; \
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const int slice_end = (height * (jobnr+1)) / nb_jobs; \
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\
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int32_t res; \
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int x, y, z; \
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uint32_t tmp1, tmp2; \
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\
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if (!amount) { \
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av_image_copy_plane(td->dst + slice_start * dst_stride, dst_stride, \
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td->src + slice_start * src_stride, src_stride, \
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width * s->bps, slice_end - slice_start); \
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return 0; \
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} \
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\
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for (y = 0; y < 2 * steps_y; y++) \
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memset(sc[sc_offset + y], 0, sizeof(sc[y][0]) * (width + 2 * steps_x)); \
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\
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dst_stride = dst_stride / s->bps; \
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src_stride = src_stride / s->bps; \
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/* if this is not the first tile, we start from (slice_start - steps_y) */ \
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/* so we can get smooth result at slice boundary */ \
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if (slice_start > steps_y) { \
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src += (slice_start - steps_y) * src_stride; \
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dst += (slice_start - steps_y) * dst_stride; \
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} \
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\
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for (y = -steps_y + slice_start; y < steps_y + slice_end; y++) { \
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if (y < height) \
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src2 = src; \
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\
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memset(sr + sr_offset, 0, sizeof(sr[0]) * (2 * steps_x - 1)); \
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for (x = -steps_x; x < width + steps_x; x++) { \
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tmp1 = x <= 0 ? src2[0] : x >= width ? src2[width-1] : src2[x]; \
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for (z = 0; z < steps_x * 2; z += 2) { \
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tmp2 = sr[sr_offset + z + 0] + tmp1; sr[sr_offset + z + 0] = tmp1; \
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tmp1 = sr[sr_offset + z + 1] + tmp2; sr[sr_offset + z + 1] = tmp2; \
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} \
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for (z = 0; z < steps_y * 2; z += 2) { \
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tmp2 = sc[sc_offset + z + 0][x + steps_x] + tmp1; \
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sc[sc_offset + z + 0][x + steps_x] = tmp1; \
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tmp1 = sc[sc_offset + z + 1][x + steps_x] + tmp2; \
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sc[sc_offset + z + 1][x + steps_x] = tmp2; \
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} \
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if (x >= steps_x && y >= (steps_y + slice_start)) { \
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const uint##nbits##_t *srx = src - steps_y * src_stride + x - steps_x; \
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uint##nbits##_t *dsx = dst - steps_y * dst_stride + x - steps_x; \
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\
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res = (int32_t)*srx + ((((int32_t) * srx - \
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(int32_t)((tmp1 + halfscale) >> scalebits)) * amount) >> (8+nbits)); \
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*dsx = av_clip_uint##nbits(res); \
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} \
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} \
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if (y >= 0) { \
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dst += dst_stride; \
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src += src_stride; \
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} \
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} \
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return 0; \
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2010-04-07 01:05:24 +00:00
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}
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2021-01-24 21:26:06 +00:00
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DEF_UNSHARP_SLICE_FUNC(unsharp_slice, 16)
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DEF_UNSHARP_SLICE_FUNC(unsharp_slice, 8)
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2010-04-07 01:05:24 +00:00
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2013-04-25 11:32:13 +00:00
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static int apply_unsharp_c(AVFilterContext *ctx, AVFrame *in, AVFrame *out)
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{
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AVFilterLink *inlink = ctx->inputs[0];
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2015-09-05 15:13:30 +00:00
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UnsharpContext *s = ctx->priv;
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2013-04-25 11:32:13 +00:00
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int i, plane_w[3], plane_h[3];
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UnsharpFilterParam *fp[3];
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2019-05-07 01:46:33 +00:00
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ThreadData td;
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2013-04-25 11:32:13 +00:00
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plane_w[0] = inlink->w;
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2016-01-27 15:19:38 +00:00
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plane_w[1] = plane_w[2] = AV_CEIL_RSHIFT(inlink->w, s->hsub);
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2013-04-25 11:32:13 +00:00
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plane_h[0] = inlink->h;
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2016-01-27 15:19:38 +00:00
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plane_h[1] = plane_h[2] = AV_CEIL_RSHIFT(inlink->h, s->vsub);
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2015-09-05 15:13:30 +00:00
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fp[0] = &s->luma;
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fp[1] = fp[2] = &s->chroma;
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2013-04-25 11:32:13 +00:00
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for (i = 0; i < 3; i++) {
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2019-05-07 01:46:33 +00:00
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td.fp = fp[i];
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td.dst = out->data[i];
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td.src = in->data[i];
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td.width = plane_w[i];
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td.height = plane_h[i];
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td.dst_stride = out->linesize[i];
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td.src_stride = in->linesize[i];
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2021-08-15 19:33:25 +00:00
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ff_filter_execute(ctx, s->unsharp_slice, &td, NULL,
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FFMIN(plane_h[i], s->nb_threads));
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2013-04-25 11:32:13 +00:00
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}
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return 0;
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}
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static void set_filter_param(UnsharpFilterParam *fp, int msize_x, int msize_y, float amount)
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2010-04-07 01:05:24 +00:00
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{
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fp->msize_x = msize_x;
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fp->msize_y = msize_y;
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fp->amount = amount * 65536.0;
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fp->steps_x = msize_x / 2;
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fp->steps_y = msize_y / 2;
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fp->scalebits = (fp->steps_x + fp->steps_y) * 2;
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fp->halfscale = 1 << (fp->scalebits - 1);
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}
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2013-03-13 07:26:39 +00:00
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static av_cold int init(AVFilterContext *ctx)
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2010-04-07 01:05:24 +00:00
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{
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2015-09-05 15:13:30 +00:00
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UnsharpContext *s = ctx->priv;
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2011-08-12 23:08:48 +00:00
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2015-09-05 15:13:30 +00:00
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set_filter_param(&s->luma, s->lmsize_x, s->lmsize_y, s->lamount);
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set_filter_param(&s->chroma, s->cmsize_x, s->cmsize_y, s->camount);
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2010-04-07 01:05:24 +00:00
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2016-09-17 11:47:17 +00:00
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if (s->luma.scalebits >= 26 || s->chroma.scalebits >= 26) {
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av_log(ctx, AV_LOG_ERROR, "luma or chroma matrix size too big\n");
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return AVERROR(EINVAL);
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}
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2015-09-05 15:13:30 +00:00
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s->apply_unsharp = apply_unsharp_c;
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2010-04-07 01:05:24 +00:00
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return 0;
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}
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2012-12-21 22:38:59 +00:00
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static const enum AVPixelFormat pix_fmts[] = {
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2012-10-06 10:10:34 +00:00
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AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV410P,
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AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
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2019-10-14 10:27:06 +00:00
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AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
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AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV440P10,
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AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
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AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
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2012-10-06 10:10:34 +00:00
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AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_NONE
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2010-04-07 01:05:24 +00:00
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};
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2013-04-25 11:32:13 +00:00
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static int init_filter_param(AVFilterContext *ctx, UnsharpFilterParam *fp, const char *effect_type, int width)
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2010-04-07 01:05:24 +00:00
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{
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int z;
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2019-05-07 01:46:33 +00:00
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UnsharpContext *s = ctx->priv;
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2013-02-15 13:19:13 +00:00
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const char *effect = fp->amount == 0 ? "none" : fp->amount < 0 ? "blur" : "sharpen";
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2010-04-07 01:05:24 +00:00
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2013-02-15 13:18:02 +00:00
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if (!(fp->msize_x & fp->msize_y & 1)) {
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av_log(ctx, AV_LOG_ERROR,
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"Invalid even size for %s matrix size %dx%d\n",
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effect_type, fp->msize_x, fp->msize_y);
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return AVERROR(EINVAL);
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}
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2012-06-25 04:31:38 +00:00
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av_log(ctx, AV_LOG_VERBOSE, "effect:%s type:%s msize_x:%d msize_y:%d amount:%0.2f\n",
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2010-04-07 01:05:24 +00:00
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effect, effect_type, fp->msize_x, fp->msize_y, fp->amount / 65535.0);
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2019-05-07 01:46:33 +00:00
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fp->sr = av_malloc_array((MAX_MATRIX_SIZE - 1) * s->nb_threads, sizeof(uint32_t));
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2021-09-14 19:31:53 +00:00
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fp->sc = av_calloc(fp->steps_y * s->nb_threads, 2 * sizeof(*fp->sc));
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2019-05-07 01:46:33 +00:00
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if (!fp->sr || !fp->sc)
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return AVERROR(ENOMEM);
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for (z = 0; z < 2 * fp->steps_y * s->nb_threads; z++)
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2014-06-13 21:14:18 +00:00
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if (!(fp->sc[z] = av_malloc_array(width + 2 * fp->steps_x,
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sizeof(*(fp->sc[z])))))
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2013-02-15 13:22:21 +00:00
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return AVERROR(ENOMEM);
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2013-02-15 13:18:02 +00:00
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return 0;
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2010-04-07 01:05:24 +00:00
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}
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2019-10-14 10:27:04 +00:00
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static int config_input(AVFilterLink *inlink)
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2010-04-07 01:05:24 +00:00
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{
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2019-10-14 10:27:04 +00:00
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UnsharpContext *s = inlink->dst->priv;
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
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2013-02-15 13:18:02 +00:00
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int ret;
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2010-04-07 01:05:24 +00:00
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2015-09-05 15:13:30 +00:00
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s->hsub = desc->log2_chroma_w;
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s->vsub = desc->log2_chroma_h;
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2019-10-14 10:27:05 +00:00
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s->bitdepth = desc->comp[0].depth;
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s->bps = s->bitdepth > 8 ? 2 : 1;
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s->unsharp_slice = s->bitdepth > 8 ? unsharp_slice_16 : unsharp_slice_8;
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2011-08-12 07:30:17 +00:00
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2019-05-07 01:46:33 +00:00
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// ensure (height / nb_threads) > 4 * steps_y,
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// so that we don't have too much overlap between two threads
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2019-10-14 10:27:04 +00:00
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s->nb_threads = FFMIN(ff_filter_get_nb_threads(inlink->dst),
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inlink->h / (4 * s->luma.steps_y));
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2019-05-07 01:46:33 +00:00
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2019-10-14 10:27:04 +00:00
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ret = init_filter_param(inlink->dst, &s->luma, "luma", inlink->w);
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2013-02-15 13:18:02 +00:00
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if (ret < 0)
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return ret;
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2019-10-14 10:27:04 +00:00
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ret = init_filter_param(inlink->dst, &s->chroma, "chroma", AV_CEIL_RSHIFT(inlink->w, s->hsub));
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2013-02-15 13:18:02 +00:00
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if (ret < 0)
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return ret;
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2010-04-07 01:05:24 +00:00
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|
return 0;
|
|
|
|
}
|
|
|
|
|
2019-05-07 01:46:33 +00:00
|
|
|
static void free_filter_param(UnsharpFilterParam *fp, int nb_threads)
|
2010-04-07 01:05:24 +00:00
|
|
|
{
|
|
|
|
int z;
|
|
|
|
|
2019-12-01 09:56:26 +00:00
|
|
|
if (fp->sc) {
|
|
|
|
for (z = 0; z < 2 * fp->steps_y * nb_threads; z++)
|
|
|
|
av_freep(&fp->sc[z]);
|
|
|
|
av_freep(&fp->sc);
|
|
|
|
}
|
2019-05-07 01:46:33 +00:00
|
|
|
av_freep(&fp->sr);
|
2010-04-07 01:05:24 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static av_cold void uninit(AVFilterContext *ctx)
|
|
|
|
{
|
2015-09-05 15:13:30 +00:00
|
|
|
UnsharpContext *s = ctx->priv;
|
2010-04-07 01:05:24 +00:00
|
|
|
|
2019-05-07 01:46:33 +00:00
|
|
|
free_filter_param(&s->luma, s->nb_threads);
|
|
|
|
free_filter_param(&s->chroma, s->nb_threads);
|
2010-04-07 01:05:24 +00:00
|
|
|
}
|
|
|
|
|
2012-11-28 07:41:07 +00:00
|
|
|
static int filter_frame(AVFilterLink *link, AVFrame *in)
|
2010-04-07 01:05:24 +00:00
|
|
|
{
|
2015-09-05 15:13:30 +00:00
|
|
|
UnsharpContext *s = link->dst->priv;
|
2012-11-28 20:47:39 +00:00
|
|
|
AVFilterLink *outlink = link->dst->outputs[0];
|
2012-11-28 07:41:07 +00:00
|
|
|
AVFrame *out;
|
2013-04-25 11:32:13 +00:00
|
|
|
int ret = 0;
|
2012-11-28 20:47:39 +00:00
|
|
|
|
2012-11-28 07:41:07 +00:00
|
|
|
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
|
2012-11-28 20:47:39 +00:00
|
|
|
if (!out) {
|
2012-11-28 07:41:07 +00:00
|
|
|
av_frame_free(&in);
|
2012-11-28 20:47:39 +00:00
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
}
|
2012-11-28 07:41:07 +00:00
|
|
|
av_frame_copy_props(out, in);
|
2010-04-07 01:05:24 +00:00
|
|
|
|
2015-09-05 15:13:30 +00:00
|
|
|
ret = s->apply_unsharp(link->dst, in, out);
|
2017-11-14 19:47:30 +00:00
|
|
|
|
2012-11-28 07:41:07 +00:00
|
|
|
av_frame_free(&in);
|
2013-04-25 11:32:13 +00:00
|
|
|
|
2017-02-03 18:37:18 +00:00
|
|
|
if (ret < 0) {
|
|
|
|
av_frame_free(&out);
|
2013-04-25 11:32:13 +00:00
|
|
|
return ret;
|
2017-02-03 18:37:18 +00:00
|
|
|
}
|
2012-11-28 20:47:39 +00:00
|
|
|
return ff_filter_frame(outlink, out);
|
2010-04-07 01:05:24 +00:00
|
|
|
}
|
|
|
|
|
2013-02-25 20:21:29 +00:00
|
|
|
#define OFFSET(x) offsetof(UnsharpContext, x)
|
2013-04-10 22:50:53 +00:00
|
|
|
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
|
|
|
|
#define MIN_SIZE 3
|
2016-09-17 11:55:06 +00:00
|
|
|
#define MAX_SIZE 23
|
2013-04-10 22:50:53 +00:00
|
|
|
static const AVOption unsharp_options[] = {
|
2013-05-04 13:16:11 +00:00
|
|
|
{ "luma_msize_x", "set luma matrix horizontal size", OFFSET(lmsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
|
|
|
|
{ "lx", "set luma matrix horizontal size", OFFSET(lmsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
|
|
|
|
{ "luma_msize_y", "set luma matrix vertical size", OFFSET(lmsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
|
|
|
|
{ "ly", "set luma matrix vertical size", OFFSET(lmsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
|
|
|
|
{ "luma_amount", "set luma effect strength", OFFSET(lamount), AV_OPT_TYPE_FLOAT, { .dbl = 1 }, -2, 5, FLAGS },
|
|
|
|
{ "la", "set luma effect strength", OFFSET(lamount), AV_OPT_TYPE_FLOAT, { .dbl = 1 }, -2, 5, FLAGS },
|
|
|
|
{ "chroma_msize_x", "set chroma matrix horizontal size", OFFSET(cmsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
|
|
|
|
{ "cx", "set chroma matrix horizontal size", OFFSET(cmsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
|
|
|
|
{ "chroma_msize_y", "set chroma matrix vertical size", OFFSET(cmsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
|
|
|
|
{ "cy", "set chroma matrix vertical size", OFFSET(cmsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
|
|
|
|
{ "chroma_amount", "set chroma effect strength", OFFSET(camount), AV_OPT_TYPE_FLOAT, { .dbl = 0 }, -2, 5, FLAGS },
|
|
|
|
{ "ca", "set chroma effect strength", OFFSET(camount), AV_OPT_TYPE_FLOAT, { .dbl = 0 }, -2, 5, FLAGS },
|
2017-11-14 19:47:30 +00:00
|
|
|
{ "opencl", "ignored", OFFSET(opencl), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
|
2013-09-07 12:13:50 +00:00
|
|
|
{ NULL }
|
2013-02-25 20:21:29 +00:00
|
|
|
};
|
|
|
|
|
2013-04-10 22:50:53 +00:00
|
|
|
AVFILTER_DEFINE_CLASS(unsharp);
|
2013-02-25 20:21:29 +00:00
|
|
|
|
2012-07-24 13:14:01 +00:00
|
|
|
static const AVFilterPad avfilter_vf_unsharp_inputs[] = {
|
|
|
|
{
|
|
|
|
.name = "default",
|
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
2012-11-28 20:47:39 +00:00
|
|
|
.filter_frame = filter_frame,
|
2019-10-14 10:27:04 +00:00
|
|
|
.config_props = config_input,
|
2012-07-24 13:14:01 +00:00
|
|
|
},
|
|
|
|
};
|
|
|
|
|
|
|
|
static const AVFilterPad avfilter_vf_unsharp_outputs[] = {
|
|
|
|
{
|
|
|
|
.name = "default",
|
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
|
|
},
|
|
|
|
};
|
|
|
|
|
2021-04-19 16:33:56 +00:00
|
|
|
const AVFilter ff_vf_unsharp = {
|
2013-09-07 12:13:50 +00:00
|
|
|
.name = "unsharp",
|
|
|
|
.description = NULL_IF_CONFIG_SMALL("Sharpen or blur the input video."),
|
|
|
|
.priv_size = sizeof(UnsharpContext),
|
|
|
|
.priv_class = &unsharp_class,
|
|
|
|
.init = init,
|
|
|
|
.uninit = uninit,
|
2021-08-12 11:05:31 +00:00
|
|
|
FILTER_INPUTS(avfilter_vf_unsharp_inputs),
|
|
|
|
FILTER_OUTPUTS(avfilter_vf_unsharp_outputs),
|
2021-09-27 15:29:19 +00:00
|
|
|
FILTER_PIXFMTS_ARRAY(pix_fmts),
|
2019-05-07 01:46:33 +00:00
|
|
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
|
2010-04-07 01:05:24 +00:00
|
|
|
};
|