2016-02-06 16:11:07 +00:00
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/*
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* Copyright (c) 2016 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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/**
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* @file
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* threshold video filter
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*/
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#include "libavutil/imgutils.h"
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#include "libavutil/internal.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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2017-08-31 17:47:37 +00:00
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#include "framesync.h"
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2016-02-06 16:11:07 +00:00
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#include "internal.h"
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#include "video.h"
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2017-11-12 18:11:51 +00:00
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#include "threshold.h"
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2016-02-06 16:11:07 +00:00
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#define OFFSET(x) offsetof(ThresholdContext, x)
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#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
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static const AVOption threshold_options[] = {
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{ "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=15}, 0, 15, FLAGS},
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{ NULL }
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};
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AVFILTER_DEFINE_CLASS(threshold);
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static int query_formats(AVFilterContext *ctx)
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{
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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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2021-01-16 22:49:59 +00:00
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AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV440P10, AV_PIX_FMT_YUV444P10,
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AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV440P12, AV_PIX_FMT_YUV444P12,
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2016-02-06 16:11:07 +00:00
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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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2021-01-16 22:49:59 +00:00
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AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12,
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2016-02-06 16:11:07 +00:00
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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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2017-08-07 09:52:18 +00:00
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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,
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2018-09-09 17:05:56 +00:00
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AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
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2016-02-06 16:11:07 +00:00
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AV_PIX_FMT_NONE
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};
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return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
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}
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2018-09-24 18:21:17 +00:00
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typedef struct ThreadData {
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AVFrame *in;
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AVFrame *threshold;
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AVFrame *min;
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AVFrame *max;
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AVFrame *out;
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} ThreadData;
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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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ThresholdContext *s = ctx->priv;
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ThreadData *td = arg;
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AVFrame *min = td->min;
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AVFrame *max = td->max;
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AVFrame *threshold = td->threshold;
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AVFrame *in = td->in;
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AVFrame *out = td->out;
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for (int p = 0; p < s->nb_planes; p++) {
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const int h = s->height[p];
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const int slice_start = (h * jobnr) / nb_jobs;
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const int slice_end = (h * (jobnr+1)) / nb_jobs;
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if (!(s->planes & (1 << p))) {
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av_image_copy_plane(out->data[p] + slice_start * out->linesize[p],
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out->linesize[p],
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in->data[p] + slice_start * in->linesize[p],
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in->linesize[p],
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s->width[p] * s->bpc,
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slice_end - slice_start);
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continue;
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}
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s->threshold(in->data[p] + slice_start * in->linesize[p],
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threshold->data[p] + slice_start * threshold->linesize[p],
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min->data[p] + slice_start * min->linesize[p],
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max->data[p] + slice_start * max->linesize[p],
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out->data[p] + slice_start * out->linesize[p],
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in->linesize[p], threshold->linesize[p],
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min->linesize[p], max->linesize[p],
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out->linesize[p],
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s->width[p], slice_end - slice_start);
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}
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return 0;
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}
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2016-02-06 16:11:07 +00:00
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static int process_frame(FFFrameSync *fs)
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{
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AVFilterContext *ctx = fs->parent;
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ThresholdContext *s = fs->opaque;
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AVFilterLink *outlink = ctx->outputs[0];
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AVFrame *out, *in, *threshold, *min, *max;
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2018-09-24 18:21:17 +00:00
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ThreadData td;
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2016-02-06 16:11:07 +00:00
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int ret;
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2017-08-31 17:47:37 +00:00
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if ((ret = ff_framesync_get_frame(&s->fs, 0, &in, 0)) < 0 ||
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(ret = ff_framesync_get_frame(&s->fs, 1, &threshold, 0)) < 0 ||
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(ret = ff_framesync_get_frame(&s->fs, 2, &min, 0)) < 0 ||
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(ret = ff_framesync_get_frame(&s->fs, 3, &max, 0)) < 0)
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2016-02-06 16:11:07 +00:00
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return ret;
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if (ctx->is_disabled) {
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out = av_frame_clone(in);
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if (!out)
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return AVERROR(ENOMEM);
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} else {
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out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
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if (!out)
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return AVERROR(ENOMEM);
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av_frame_copy_props(out, in);
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2018-09-24 18:21:17 +00:00
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td.out = out;
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td.in = in;
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td.threshold = threshold;
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td.min = min;
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td.max = max;
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ctx->internal->execute(ctx, filter_slice, &td, NULL,
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FFMIN(s->height[2], ff_filter_get_nb_threads(ctx)));
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2016-02-06 16:11:07 +00:00
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}
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out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
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return ff_filter_frame(outlink, out);
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}
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static void threshold8(const uint8_t *in, const uint8_t *threshold,
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const uint8_t *min, const uint8_t *max,
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uint8_t *out,
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ptrdiff_t ilinesize, ptrdiff_t tlinesize,
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ptrdiff_t flinesize, ptrdiff_t slinesize,
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ptrdiff_t olinesize,
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int w, int h)
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{
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int x, y;
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for (y = 0; y < h; y++) {
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for (x = 0; x < w; x++) {
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out[x] = in[x] < threshold[x] ? min[x] : max[x];
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}
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in += ilinesize;
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threshold += tlinesize;
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min += flinesize;
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2017-11-27 17:04:39 +00:00
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max += slinesize;
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2016-02-06 16:11:07 +00:00
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out += olinesize;
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}
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}
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static void threshold16(const uint8_t *iin, const uint8_t *tthreshold,
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const uint8_t *ffirst, const uint8_t *ssecond,
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uint8_t *oout,
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ptrdiff_t ilinesize, ptrdiff_t tlinesize,
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ptrdiff_t flinesize, ptrdiff_t slinesize,
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ptrdiff_t olinesize,
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int w, int h)
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{
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const uint16_t *in = (const uint16_t *)iin;
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const uint16_t *threshold = (const uint16_t *)tthreshold;
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const uint16_t *min = (const uint16_t *)ffirst;
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const uint16_t *max = (const uint16_t *)ssecond;
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uint16_t *out = (uint16_t *)oout;
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int x, y;
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for (y = 0; y < h; y++) {
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for (x = 0; x < w; x++) {
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out[x] = in[x] < threshold[x] ? min[x] : max[x];
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}
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in += ilinesize / 2;
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threshold += tlinesize / 2;
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min += flinesize / 2;
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2017-11-27 17:04:39 +00:00
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max += slinesize / 2;
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2016-02-06 16:11:07 +00:00
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out += olinesize / 2;
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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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ThresholdContext *s = ctx->priv;
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
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int vsub, hsub;
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s->nb_planes = av_pix_fmt_count_planes(inlink->format);
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hsub = desc->log2_chroma_w;
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vsub = desc->log2_chroma_h;
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s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
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s->height[0] = s->height[3] = inlink->h;
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s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
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s->width[0] = s->width[3] = inlink->w;
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2017-11-12 18:11:51 +00:00
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s->depth = desc->comp[0].depth;
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2016-02-06 16:11:07 +00:00
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2017-12-03 15:55:37 +00:00
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ff_threshold_init(s);
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return 0;
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}
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void ff_threshold_init(ThresholdContext *s)
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{
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2017-11-12 18:11:51 +00:00
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if (s->depth == 8) {
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2016-02-06 16:11:07 +00:00
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s->threshold = threshold8;
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s->bpc = 1;
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} else {
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s->threshold = threshold16;
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s->bpc = 2;
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}
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2017-11-12 18:11:51 +00:00
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if (ARCH_X86)
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ff_threshold_init_x86(s);
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2016-02-06 16:11:07 +00:00
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}
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static int config_output(AVFilterLink *outlink)
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{
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AVFilterContext *ctx = outlink->src;
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ThresholdContext *s = ctx->priv;
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AVFilterLink *base = ctx->inputs[0];
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AVFilterLink *threshold = ctx->inputs[1];
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AVFilterLink *min = ctx->inputs[2];
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AVFilterLink *max = ctx->inputs[3];
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FFFrameSyncIn *in;
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int ret;
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if (base->format != threshold->format ||
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base->format != min->format ||
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base->format != max->format) {
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av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n");
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return AVERROR(EINVAL);
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}
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if (base->w != threshold->w ||
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base->h != threshold->h ||
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base->w != min->w ||
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base->h != min->h ||
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base->w != max->w ||
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base->h != max->h) {
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av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
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"(size %dx%d) do not match the corresponding "
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"second input link %s parameters (%dx%d) "
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"and/or third input link %s parameters (%dx%d) "
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"and/or fourth input link %s parameters (%dx%d)\n",
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ctx->input_pads[0].name, base->w, base->h,
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ctx->input_pads[1].name, threshold->w, threshold->h,
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ctx->input_pads[2].name, min->w, min->h,
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ctx->input_pads[3].name, max->w, max->h);
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return AVERROR(EINVAL);
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}
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outlink->w = base->w;
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outlink->h = base->h;
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outlink->sample_aspect_ratio = base->sample_aspect_ratio;
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outlink->frame_rate = base->frame_rate;
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2017-08-31 17:47:37 +00:00
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if ((ret = ff_framesync_init(&s->fs, ctx, 4)) < 0)
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2016-02-06 16:11:07 +00:00
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return ret;
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in = s->fs.in;
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in[0].time_base = base->time_base;
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in[1].time_base = threshold->time_base;
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in[2].time_base = min->time_base;
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in[3].time_base = max->time_base;
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in[0].sync = 1;
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in[0].before = EXT_STOP;
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in[0].after = EXT_STOP;
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in[1].sync = 1;
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in[1].before = EXT_STOP;
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in[1].after = EXT_STOP;
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in[2].sync = 1;
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in[2].before = EXT_STOP;
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in[2].after = EXT_STOP;
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in[3].sync = 1;
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in[3].before = EXT_STOP;
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in[3].after = EXT_STOP;
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s->fs.opaque = s;
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s->fs.on_event = process_frame;
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2019-07-14 15:28:04 +00:00
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ret = ff_framesync_configure(&s->fs);
|
|
|
|
outlink->time_base = s->fs.time_base;
|
|
|
|
|
|
|
|
return ret;
|
2016-02-06 16:11:07 +00:00
|
|
|
}
|
|
|
|
|
2017-07-17 14:29:35 +00:00
|
|
|
static int activate(AVFilterContext *ctx)
|
2016-02-06 16:11:07 +00:00
|
|
|
{
|
2017-07-17 14:29:35 +00:00
|
|
|
ThresholdContext *s = ctx->priv;
|
2017-08-31 17:47:37 +00:00
|
|
|
return ff_framesync_activate(&s->fs);
|
2016-02-06 16:11:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static av_cold void uninit(AVFilterContext *ctx)
|
|
|
|
{
|
|
|
|
ThresholdContext *s = ctx->priv;
|
|
|
|
|
2017-08-31 17:47:37 +00:00
|
|
|
ff_framesync_uninit(&s->fs);
|
2016-02-06 16:11:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static const AVFilterPad inputs[] = {
|
|
|
|
{
|
|
|
|
.name = "default",
|
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
|
|
.config_props = config_input,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.name = "threshold",
|
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.name = "min",
|
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.name = "max",
|
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
|
|
},
|
|
|
|
{ NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static const AVFilterPad outputs[] = {
|
|
|
|
{
|
|
|
|
.name = "default",
|
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
|
|
.config_props = config_output,
|
|
|
|
},
|
|
|
|
{ NULL }
|
|
|
|
};
|
|
|
|
|
2021-04-19 16:33:56 +00:00
|
|
|
const AVFilter ff_vf_threshold = {
|
2016-02-06 16:11:07 +00:00
|
|
|
.name = "threshold",
|
|
|
|
.description = NULL_IF_CONFIG_SMALL("Threshold first video stream using other video streams."),
|
|
|
|
.priv_size = sizeof(ThresholdContext),
|
|
|
|
.priv_class = &threshold_class,
|
|
|
|
.uninit = uninit,
|
|
|
|
.query_formats = query_formats,
|
2017-07-17 14:29:35 +00:00
|
|
|
.activate = activate,
|
2016-02-06 16:11:07 +00:00
|
|
|
.inputs = inputs,
|
|
|
|
.outputs = outputs,
|
2018-09-24 18:21:17 +00:00
|
|
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
|
2016-02-06 16:11:07 +00:00
|
|
|
};
|