mirror of https://git.ffmpeg.org/ffmpeg.git
402 lines
14 KiB
C
402 lines
14 KiB
C
/*
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* Copyright (c) 2012-2013 Oka Motofumi (chikuzen.mo at gmail dot com)
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* Copyright (c) 2015 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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#include "config_components.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/opt.h"
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#include "avfilter.h"
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#include "internal.h"
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#include "video.h"
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typedef struct ThreadData {
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AVFrame *in, *out;
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} ThreadData;
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typedef struct NContext {
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const AVClass *class;
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int planeheight[4];
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int planewidth[4];
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int nb_planes;
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int threshold[4];
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int coordinates;
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int depth;
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int max;
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int bpc;
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void (*filter)(uint8_t *dst, const uint8_t *p1, int width,
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int threshold, const uint8_t *coordinates[], int coord,
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int maxc);
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} NContext;
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static const enum AVPixelFormat pix_fmts[] = {
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AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
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AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
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AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P,
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AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
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AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
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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,
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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_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
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AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
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AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
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AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
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AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12,
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AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
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AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
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AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
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AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
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AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
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AV_PIX_FMT_NONE
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};
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static void erosion(uint8_t *dst, const uint8_t *p1, int width,
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int threshold, const uint8_t *coordinates[], int coord,
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int maxc)
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{
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int x, i;
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for (x = 0; x < width; x++) {
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int min = p1[x];
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int limit = FFMAX(min - threshold, 0);
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for (i = 0; i < 8; i++) {
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if (coord & (1 << i)) {
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min = FFMIN(min, *(coordinates[i] + x));
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}
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min = FFMAX(min, limit);
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}
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dst[x] = min;
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}
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}
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static void erosion16(uint8_t *dstp, const uint8_t *p1, int width,
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int threshold, const uint8_t *coordinates[], int coord,
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int maxc)
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{
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uint16_t *dst = (uint16_t *)dstp;
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int x, i;
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for (x = 0; x < width; x++) {
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int min = AV_RN16A(&p1[2 * x]);
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int limit = FFMAX(min - threshold, 0);
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for (i = 0; i < 8; i++) {
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if (coord & (1 << i)) {
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min = FFMIN(min, AV_RN16A(coordinates[i] + x * 2));
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}
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min = FFMAX(min, limit);
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}
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dst[x] = min;
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}
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}
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static void dilation(uint8_t *dst, const uint8_t *p1, int width,
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int threshold, const uint8_t *coordinates[], int coord,
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int maxc)
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{
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int x, i;
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for (x = 0; x < width; x++) {
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int max = p1[x];
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int limit = FFMIN(max + threshold, 255);
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for (i = 0; i < 8; i++) {
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if (coord & (1 << i)) {
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max = FFMAX(max, *(coordinates[i] + x));
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}
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max = FFMIN(max, limit);
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}
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dst[x] = max;
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}
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}
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static void dilation16(uint8_t *dstp, const uint8_t *p1, int width,
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int threshold, const uint8_t *coordinates[], int coord,
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int maxc)
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{
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uint16_t *dst = (uint16_t *)dstp;
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int x, i;
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for (x = 0; x < width; x++) {
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int max = AV_RN16A(&p1[x * 2]);
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int limit = FFMIN(max + threshold, maxc);
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for (i = 0; i < 8; i++) {
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if (coord & (1 << i)) {
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max = FFMAX(max, AV_RN16A(coordinates[i] + x * 2));
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}
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max = FFMIN(max, limit);
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}
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dst[x] = max;
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}
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}
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static void deflate(uint8_t *dst, const uint8_t *p1, int width,
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int threshold, const uint8_t *coordinates[], int coord,
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int maxc)
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{
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int x, i;
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for (x = 0; x < width; x++) {
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int sum = 0;
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int limit = FFMAX(p1[x] - threshold, 0);
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for (i = 0; i < 8; sum += *(coordinates[i++] + x));
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dst[x] = FFMAX(FFMIN(sum / 8, p1[x]), limit);
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}
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}
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static void deflate16(uint8_t *dstp, const uint8_t *p1, int width,
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int threshold, const uint8_t *coordinates[], int coord,
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int maxc)
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{
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uint16_t *dst = (uint16_t *)dstp;
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int x, i;
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for (x = 0; x < width; x++) {
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int sum = 0;
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int limit = FFMAX(AV_RN16A(&p1[2 * x]) - threshold, 0);
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for (i = 0; i < 8; sum += AV_RN16A(coordinates[i++] + x * 2));
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dst[x] = FFMAX(FFMIN(sum / 8, AV_RN16A(&p1[2 * x])), limit);
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}
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}
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static void inflate(uint8_t *dst, const uint8_t *p1, int width,
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int threshold, const uint8_t *coordinates[], int coord,
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int maxc)
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{
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int x, i;
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for (x = 0; x < width; x++) {
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int sum = 0;
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int limit = FFMIN(p1[x] + threshold, 255);
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for (i = 0; i < 8; sum += *(coordinates[i++] + x));
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dst[x] = FFMIN(FFMAX(sum / 8, p1[x]), limit);
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}
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}
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static void inflate16(uint8_t *dstp, const uint8_t *p1, int width,
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int threshold, const uint8_t *coordinates[], int coord,
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int maxc)
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{
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uint16_t *dst = (uint16_t *)dstp;
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int x, i;
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for (x = 0; x < width; x++) {
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int sum = 0;
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int limit = FFMIN(AV_RN16A(&p1[2 * x]) + threshold, maxc);
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for (i = 0; i < 8; sum += AV_RN16A(coordinates[i++] + x * 2));
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dst[x] = FFMIN(FFMAX(sum / 8, AV_RN16A(&p1[x * 2])), limit);
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}
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}
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static int config_input(AVFilterLink *inlink)
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{
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AVFilterContext *ctx = inlink->dst;
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NContext *s = ctx->priv;
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
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s->depth = desc->comp[0].depth;
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s->max = (1 << s->depth) - 1;
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s->bpc = (s->depth + 7) / 8;
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s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
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s->planewidth[0] = s->planewidth[3] = inlink->w;
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s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
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s->planeheight[0] = s->planeheight[3] = inlink->h;
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s->nb_planes = av_pix_fmt_count_planes(inlink->format);
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if (!strcmp(ctx->filter->name, "erosion"))
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s->filter = s->depth > 8 ? erosion16 : erosion;
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else if (!strcmp(ctx->filter->name, "dilation"))
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s->filter = s->depth > 8 ? dilation16 : dilation;
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else if (!strcmp(ctx->filter->name, "deflate"))
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s->filter = s->depth > 8 ? deflate16 : deflate;
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else if (!strcmp(ctx->filter->name, "inflate"))
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s->filter = s->depth > 8 ? inflate16 : inflate;
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return 0;
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}
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static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
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{
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NContext *s = ctx->priv;
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ThreadData *td = arg;
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AVFrame *out = td->out;
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AVFrame *in = td->in;
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int plane, y;
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for (plane = 0; plane < s->nb_planes; plane++) {
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const int bpc = s->bpc;
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const int threshold = s->threshold[plane];
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const int stride = in->linesize[plane];
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const int dstride = out->linesize[plane];
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const int height = s->planeheight[plane];
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const int width = s->planewidth[plane];
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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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const uint8_t *src = (const uint8_t *)in->data[plane] + slice_start * stride;
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uint8_t *dst = out->data[plane] + slice_start * dstride;
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if (!threshold) {
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av_image_copy_plane(dst, dstride, src, stride, width * bpc, slice_end - slice_start);
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continue;
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}
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for (y = slice_start; y < slice_end; y++) {
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const int nh = y > 0;
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const int ph = y < height - 1;
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const uint8_t *coordinates[] = { src - nh * stride, src + 1 * bpc - nh * stride, src + 2 * bpc - nh * stride,
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src, src + 2 * bpc,
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src + ph * stride, src + 1 * bpc + ph * stride, src + 2 * bpc + ph * stride};
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const uint8_t *coordinateslb[] = { src + 1 * bpc - nh * stride, src - nh * stride, src + 1 * bpc - nh * stride,
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src + 1 * bpc, src + 1 * bpc,
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src + 1 * bpc + ph * stride, src + ph * stride, src + 1 * bpc + ph * stride};
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const uint8_t *coordinatesrb[] = { src + (width - 2) * bpc - nh * stride, src + (width - 1) * bpc - nh * stride, src + (width - 2) * bpc - nh * stride,
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src + (width - 2) * bpc, src + (width - 2) * bpc,
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src + (width - 2) * bpc + ph * stride, src + (width - 1) * bpc + ph * stride, src + (width - 2) * bpc + ph * stride};
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s->filter(dst, src, 1, threshold, coordinateslb, s->coordinates, s->max);
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if (width > 1) {
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s->filter(dst + 1 * bpc, src + 1 * bpc, width - 2, threshold, coordinates, s->coordinates, s->max);
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s->filter(dst + (width - 1) * bpc, src + (width - 1) * bpc, 1, threshold, coordinatesrb, s->coordinates, s->max);
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}
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src += stride;
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dst += dstride;
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}
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}
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return 0;
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}
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static int filter_frame(AVFilterLink *inlink, AVFrame *in)
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{
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AVFilterContext *ctx = inlink->dst;
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AVFilterLink *outlink = ctx->outputs[0];
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NContext *s = ctx->priv;
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ThreadData td;
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AVFrame *out;
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out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
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if (!out) {
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av_frame_free(&in);
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return AVERROR(ENOMEM);
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}
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av_frame_copy_props(out, in);
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td.in = in;
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td.out = out;
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ff_filter_execute(ctx, filter_slice, &td, NULL,
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FFMIN(s->planeheight[1], ff_filter_get_nb_threads(ctx)));
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av_frame_free(&in);
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return ff_filter_frame(outlink, out);
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}
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static const AVFilterPad neighbor_inputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.filter_frame = filter_frame,
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.config_props = config_input,
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},
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};
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#define OFFSET(x) offsetof(NContext, x)
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#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
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#define DEFINE_NEIGHBOR_FILTER(name_, description_, priv_class_) \
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const AVFilter ff_vf_##name_ = { \
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.name = #name_, \
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.description = NULL_IF_CONFIG_SMALL(description_), \
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.priv_class = &priv_class_##_class, \
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.priv_size = sizeof(NContext), \
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FILTER_INPUTS(neighbor_inputs), \
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FILTER_OUTPUTS(ff_video_default_filterpad), \
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FILTER_PIXFMTS_ARRAY(pix_fmts), \
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.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC| \
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AVFILTER_FLAG_SLICE_THREADS, \
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.process_command = ff_filter_process_command, \
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}
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/* The following options are shared between all filters here;
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* the de/inflate filters only use the threshold* options. */
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#define DEINFLATE_OPTIONS_OFFSET (CONFIG_EROSION_FILTER || CONFIG_DILATION_FILTER)
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static const AVOption options[] = {
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#if CONFIG_EROSION_FILTER || CONFIG_DILATION_FILTER
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{ "coordinates", "set coordinates", OFFSET(coordinates), AV_OPT_TYPE_INT, {.i64=255}, 0, 255, FLAGS },
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#endif
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{ "threshold0", "set threshold for 1st plane", OFFSET(threshold[0]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS },
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{ "threshold1", "set threshold for 2nd plane", OFFSET(threshold[1]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS },
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{ "threshold2", "set threshold for 3rd plane", OFFSET(threshold[2]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS },
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{ "threshold3", "set threshold for 4th plane", OFFSET(threshold[3]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS },
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{ NULL }
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};
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AVFILTER_DEFINE_CLASS_EXT(erosion_dilation, "erosion/dilation", options);
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#if CONFIG_EROSION_FILTER
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DEFINE_NEIGHBOR_FILTER(erosion, "Apply erosion effect.", erosion_dilation);
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#endif /* CONFIG_EROSION_FILTER */
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#if CONFIG_DILATION_FILTER
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DEFINE_NEIGHBOR_FILTER(dilation, "Apply dilation effect.", erosion_dilation);
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#endif /* CONFIG_DILATION_FILTER */
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AVFILTER_DEFINE_CLASS_EXT(deflate_inflate, "deflate/inflate",
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&options[DEINFLATE_OPTIONS_OFFSET]);
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#if CONFIG_DEFLATE_FILTER
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DEFINE_NEIGHBOR_FILTER(deflate, "Apply deflate effect.", deflate_inflate);
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#endif /* CONFIG_DEFLATE_FILTER */
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#if CONFIG_INFLATE_FILTER
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DEFINE_NEIGHBOR_FILTER(inflate, "Apply inflate effect.", deflate_inflate);
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#endif /* CONFIG_INFLATE_FILTER */
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