GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavfilter/vf_dedot.c Lines: 0 106 0.0 %
Date: 2020-10-23 17:01:47 Branches: 0 144 0.0 %

Line Branch Exec Source
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/*
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 * Copyright (c) 2018 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 "libavutil/imgutils.h"
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#include "libavutil/opt.h"
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#include "libavutil/pixdesc.h"
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#include "avfilter.h"
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#include "filters.h"
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#include "formats.h"
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#include "internal.h"
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#include "video.h"
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typedef struct DedotContext {
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    const AVClass *class;
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    int m;
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    float lt;
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    float tl;
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    float tc;
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    float ct;
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    const AVPixFmtDescriptor *desc;
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    int depth;
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    int max;
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    int luma2d;
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    int lumaT;
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    int chromaT1;
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    int chromaT2;
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    int eof;
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    int eof_frames;
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    int nb_planes;
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    int planewidth[4];
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    int planeheight[4];
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    AVFrame *frames[5];
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    int (*dedotcrawl)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
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    int (*derainbow)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
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} DedotContext;
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static int query_formats(AVFilterContext *ctx)
60
{
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    static const enum AVPixelFormat pixel_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_NONE
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    };
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    AVFilterFormats *formats = ff_make_format_list(pixel_fmts);
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    if (!formats)
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        return AVERROR(ENOMEM);
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    return ff_set_common_formats(ctx, formats);
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}
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#define DEFINE_DEDOTCRAWL(name, type, div)                       \
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static int dedotcrawl##name(AVFilterContext *ctx, void *arg,     \
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                            int jobnr, int nb_jobs)              \
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{                                                                \
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    DedotContext *s = ctx->priv;                                 \
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    AVFrame *out = arg;                                          \
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    int src_linesize = s->frames[2]->linesize[0] / div;          \
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    int dst_linesize = out->linesize[0] / div;                   \
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    int p0_linesize = s->frames[0]->linesize[0] / div;           \
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    int p1_linesize = s->frames[1]->linesize[0] / div;           \
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    int p3_linesize = s->frames[3]->linesize[0] / div;           \
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    int p4_linesize = s->frames[4]->linesize[0] / div;           \
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    const int h = s->planeheight[0];                             \
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    int slice_start = (h * jobnr) / nb_jobs;                     \
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    int slice_end = (h * (jobnr+1)) / nb_jobs;                   \
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    type *p0 = (type *)s->frames[0]->data[0];                    \
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    type *p1 = (type *)s->frames[1]->data[0];                    \
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    type *p3 = (type *)s->frames[3]->data[0];                    \
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    type *p4 = (type *)s->frames[4]->data[0];                    \
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    type *src = (type *)s->frames[2]->data[0];                   \
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    type *dst = (type *)out->data[0];                            \
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    const int luma2d = s->luma2d;                                \
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    const int lumaT = s->lumaT;                                  \
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                                                                 \
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    if (!slice_start) {                                          \
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        slice_start++;                                           \
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    }                                                            \
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    p0 += p0_linesize * slice_start;                             \
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    p1 += p1_linesize * slice_start;                             \
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    p3 += p3_linesize * slice_start;                             \
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    p4 += p4_linesize * slice_start;                             \
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    src += src_linesize * slice_start;                           \
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    dst += dst_linesize * slice_start;                           \
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    if (slice_end == h) {                                        \
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        slice_end--;                                             \
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    }                                                            \
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    for (int y = slice_start; y < slice_end; y++) {              \
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        for (int x = 1; x < s->planewidth[0] - 1; x++) {         \
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            int above = src[x - src_linesize];                   \
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            int bellow = src[x + src_linesize];                  \
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            int cur = src[x];                                    \
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            int left = src[x - 1];                               \
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            int right = src[x + 1];                              \
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                                                                 \
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            if (FFABS(above + bellow - 2 * cur) <= luma2d &&     \
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                FFABS(left + right - 2 * cur) <= luma2d)         \
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                continue;                                        \
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                                                                 \
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            if (FFABS(cur - p0[x]) <= lumaT &&                   \
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                FFABS(cur - p4[x]) <= lumaT &&                   \
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                FFABS(p1[x] - p3[x]) <= lumaT) {                 \
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                int diff1 = FFABS(cur - p1[x]);                  \
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                int diff2 = FFABS(cur - p3[x]);                  \
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                                                                 \
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                if (diff1 < diff2)                               \
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                    dst[x] = (src[x] + p1[x] + 1) >> 1;          \
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                else                                             \
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                    dst[x] = (src[x] + p3[x] + 1) >> 1;          \
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            }                                                    \
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        }                                                        \
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                                                                 \
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        dst += dst_linesize;                                     \
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        src += src_linesize;                                     \
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        p0 += p0_linesize;                                       \
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        p1 += p1_linesize;                                       \
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        p3 += p3_linesize;                                       \
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        p4 += p4_linesize;                                       \
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    }                                                            \
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    return 0;                                                    \
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}
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DEFINE_DEDOTCRAWL(8, uint8_t, 1)
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DEFINE_DEDOTCRAWL(16, uint16_t, 2)
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typedef struct ThreadData {
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    AVFrame *out;
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    int plane;
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} ThreadData;
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#define DEFINE_DERAINBOW(name, type, div)                    \
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static int derainbow##name(AVFilterContext *ctx, void *arg,  \
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                           int jobnr, int nb_jobs)           \
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{                                                            \
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    DedotContext *s = ctx->priv;                             \
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    ThreadData *td = arg;                                    \
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    AVFrame *out = td->out;                                  \
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    const int plane = td->plane;                             \
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    const int h = s->planeheight[plane];                     \
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    int slice_start = (h * jobnr) / nb_jobs;                 \
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    int slice_end = (h * (jobnr+1)) / nb_jobs;               \
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    int src_linesize = s->frames[2]->linesize[plane] / div;  \
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    int dst_linesize = out->linesize[plane] / div;           \
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    int p0_linesize = s->frames[0]->linesize[plane] / div;   \
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    int p1_linesize = s->frames[1]->linesize[plane] / div;   \
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    int p3_linesize = s->frames[3]->linesize[plane] / div;   \
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    int p4_linesize = s->frames[4]->linesize[plane] / div;   \
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    type *p0 = (type *)s->frames[0]->data[plane];            \
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    type *p1 = (type *)s->frames[1]->data[plane];            \
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    type *p3 = (type *)s->frames[3]->data[plane];            \
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    type *p4 = (type *)s->frames[4]->data[plane];            \
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    type *src = (type *)s->frames[2]->data[plane];           \
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    type *dst = (type *)out->data[plane];                    \
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    const int chromaT1 = s->chromaT1;                        \
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    const int chromaT2 = s->chromaT2;                        \
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                                                             \
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    p0 += slice_start * p0_linesize;                         \
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    p1 += slice_start * p1_linesize;                         \
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    p3 += slice_start * p3_linesize;                         \
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    p4 += slice_start * p4_linesize;                         \
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    src += slice_start * src_linesize;                       \
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    dst += slice_start * dst_linesize;                       \
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    for (int y = slice_start; y < slice_end; y++) {          \
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        for (int x = 0; x < s->planewidth[plane]; x++) {     \
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            int cur = src[x];                                \
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                                                             \
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            if (FFABS(cur - p0[x]) <= chromaT1 &&            \
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                FFABS(cur - p4[x]) <= chromaT1 &&            \
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                FFABS(p1[x] - p3[x]) <= chromaT1 &&          \
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                FFABS(cur - p1[x]) > chromaT2 &&             \
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                FFABS(cur - p3[x]) > chromaT2) {             \
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                int diff1 = FFABS(cur - p1[x]);              \
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                int diff2 = FFABS(cur - p3[x]);              \
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                                                             \
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                if (diff1 < diff2)                           \
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                    dst[x] = (src[x] + p1[x] + 1) >> 1;      \
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                else                                         \
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                    dst[x] = (src[x] + p3[x] + 1) >> 1;      \
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            }                                                \
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        }                                                    \
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                                                             \
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        dst += dst_linesize;                                 \
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        src += src_linesize;                                 \
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        p0 += p0_linesize;                                   \
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        p1 += p1_linesize;                                   \
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        p3 += p3_linesize;                                   \
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        p4 += p4_linesize;                                   \
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    }                                                        \
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    return 0;                                                \
222
}
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DEFINE_DERAINBOW(8, uint8_t, 1)
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DEFINE_DERAINBOW(16, uint16_t, 2)
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static int config_output(AVFilterLink *outlink)
228
{
229
    AVFilterContext *ctx = outlink->src;
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    DedotContext *s = ctx->priv;
231
    AVFilterLink *inlink = ctx->inputs[0];
232
233
    s->desc = av_pix_fmt_desc_get(outlink->format);
234
    if (!s->desc)
235
        return AVERROR_BUG;
236
    s->nb_planes = av_pix_fmt_count_planes(outlink->format);
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    s->depth = s->desc->comp[0].depth;
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    s->max = (1 << s->depth) - 1;
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    s->luma2d = s->lt * s->max;
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    s->lumaT = s->tl * s->max;
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    s->chromaT1 = s->tc * s->max;
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    s->chromaT2 = s->ct * s->max;
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    s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, s->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, s->desc->log2_chroma_h);
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    s->planeheight[0] = s->planeheight[3] = inlink->h;
249
250
    if (s->depth <= 8) {
251
        s->dedotcrawl = dedotcrawl8;
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        s->derainbow = derainbow8;
253
    } else {
254
        s->dedotcrawl = dedotcrawl16;
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        s->derainbow = derainbow16;
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    }
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    return 0;
259
}
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static int activate(AVFilterContext *ctx)
262
{
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    AVFilterLink *inlink = ctx->inputs[0];
264
    AVFilterLink *outlink = ctx->outputs[0];
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    DedotContext *s = ctx->priv;
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    AVFrame *frame = NULL;
267
    int64_t pts;
268
    int status;
269
    int ret = 0;
270
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    FF_FILTER_FORWARD_STATUS_BACK(outlink, inlink);
272
273
    if (s->eof == 0) {
274
        ret = ff_inlink_consume_frame(inlink, &frame);
275
        if (ret < 0)
276
            return ret;
277
    }
278
    if (frame || s->eof_frames > 0) {
279
        AVFrame *out = NULL;
280
281
        if (frame) {
282
            for (int i = 2; i < 5; i++) {
283
                if (!s->frames[i])
284
                    s->frames[i] = av_frame_clone(frame);
285
            }
286
            av_frame_free(&frame);
287
        } else if (s->frames[3]) {
288
            s->eof_frames--;
289
            s->frames[4] = av_frame_clone(s->frames[3]);
290
        }
291
292
        if (s->frames[0] &&
293
            s->frames[1] &&
294
            s->frames[2] &&
295
            s->frames[3] &&
296
            s->frames[4]) {
297
            out = av_frame_clone(s->frames[2]);
298
            if (out && !ctx->is_disabled) {
299
                ret = av_frame_make_writable(out);
300
                if (ret >= 0) {
301
                    if (s->m & 1)
302
                        ctx->internal->execute(ctx, s->dedotcrawl, out, NULL,
303
                                               FFMIN(s->planeheight[0],
304
                                               ff_filter_get_nb_threads(ctx)));
305
                    if (s->m & 2) {
306
                        ThreadData td;
307
                        td.out = out; td.plane = 1;
308
                        ctx->internal->execute(ctx, s->derainbow, &td, NULL,
309
                                               FFMIN(s->planeheight[1],
310
                                               ff_filter_get_nb_threads(ctx)));
311
                        td.plane = 2;
312
                        ctx->internal->execute(ctx, s->derainbow, &td, NULL,
313
                                               FFMIN(s->planeheight[2],
314
                                               ff_filter_get_nb_threads(ctx)));
315
                    }
316
                } else
317
                    av_frame_free(&out);
318
            } else if (!out) {
319
                ret = AVERROR(ENOMEM);
320
            }
321
        }
322
323
        av_frame_free(&s->frames[0]);
324
        s->frames[0] = s->frames[1];
325
        s->frames[1] = s->frames[2];
326
        s->frames[2] = s->frames[3];
327
        s->frames[3] = s->frames[4];
328
        s->frames[4] = NULL;
329
330
        if (ret < 0)
331
            return ret;
332
        if (out)
333
            return ff_filter_frame(outlink, out);
334
    }
335
336
    if (s->eof) {
337
        if (s->eof_frames <= 0) {
338
            ff_outlink_set_status(outlink, AVERROR_EOF, s->frames[2]->pts);
339
        } else {
340
            ff_filter_set_ready(ctx, 10);
341
        }
342
        return 0;
343
    }
344
345
    if (!s->eof && ff_inlink_acknowledge_status(inlink, &status, &pts)) {
346
        if (status == AVERROR_EOF) {
347
            s->eof = 1;
348
            s->eof_frames = !!s->frames[0] + !!s->frames[1];
349
            if (s->eof_frames <= 0) {
350
                ff_outlink_set_status(outlink, AVERROR_EOF, pts);
351
                return 0;
352
            }
353
            ff_filter_set_ready(ctx, 10);
354
            return 0;
355
        }
356
    }
357
358
    FF_FILTER_FORWARD_WANTED(outlink, inlink);
359
360
    return FFERROR_NOT_READY;
361
}
362
363
static av_cold void uninit(AVFilterContext *ctx)
364
{
365
    DedotContext *s = ctx->priv;
366
367
    for (int i = 0; i < 5; i++)
368
        av_frame_free(&s->frames[i]);
369
}
370
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#define OFFSET(x) offsetof(DedotContext, x)
372
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
373
374
static const AVOption dedot_options[] = {
375
    { "m",   "set filtering mode",                          OFFSET( m), AV_OPT_TYPE_FLAGS, {.i64=3},    0, 3, FLAGS, "m" },
376
    { "dotcrawl",                                           0,       0, AV_OPT_TYPE_CONST, {.i64=1},    0, 0, FLAGS, "m" },
377
    { "rainbows",                                           0,       0, AV_OPT_TYPE_CONST, {.i64=2},    0, 0, FLAGS, "m" },
378
    { "lt",  "set spatial luma threshold",                  OFFSET(lt), AV_OPT_TYPE_FLOAT, {.dbl=.079}, 0, 1, FLAGS },
379
    { "tl",  "set tolerance for temporal luma",             OFFSET(tl), AV_OPT_TYPE_FLOAT, {.dbl=.079}, 0, 1, FLAGS },
380
    { "tc",  "set tolerance for chroma temporal variation", OFFSET(tc), AV_OPT_TYPE_FLOAT, {.dbl=.058}, 0, 1, FLAGS },
381
    { "ct",  "set temporal chroma threshold",               OFFSET(ct), AV_OPT_TYPE_FLOAT, {.dbl=.019}, 0, 1, FLAGS },
382
    { NULL },
383
};
384
385
static const AVFilterPad inputs[] = {
386
    {
387
        .name           = "default",
388
        .type           = AVMEDIA_TYPE_VIDEO,
389
    },
390
    { NULL }
391
};
392
393
static const AVFilterPad outputs[] = {
394
    {
395
        .name          = "default",
396
        .type          = AVMEDIA_TYPE_VIDEO,
397
        .config_props  = config_output,
398
    },
399
    { NULL }
400
};
401
402
AVFILTER_DEFINE_CLASS(dedot);
403
404
AVFilter ff_vf_dedot = {
405
    .name          = "dedot",
406
    .description   = NULL_IF_CONFIG_SMALL("Reduce cross-luminance and cross-color."),
407
    .priv_size     = sizeof(DedotContext),
408
    .priv_class    = &dedot_class,
409
    .query_formats = query_formats,
410
    .activate      = activate,
411
    .uninit        = uninit,
412
    .inputs        = inputs,
413
    .outputs       = outputs,
414
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
415
};