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/* |
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* Copyright (c) 2019 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/avstring.h" |
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#include "libavutil/imgutils.h" |
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#include "libavutil/mem.h" |
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#include "libavutil/opt.h" |
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#include "libavutil/pixdesc.h" |
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#include "libavutil/qsort.h" |
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#include "avfilter.h" |
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#include "internal.h" |
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#include "framesync.h" |
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#include "video.h" |
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typedef struct XMedianContext { |
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const AVClass *class; |
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const AVPixFmtDescriptor *desc; |
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int nb_inputs; |
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int nb_frames; |
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int nb_threads; |
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int planes; |
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float percentile; |
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int xmedian; |
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int radius; |
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int index; |
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int depth; |
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int max; |
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int nb_planes; |
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int linesizes[4]; |
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int width[4]; |
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int height[4]; |
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uint8_t **data; |
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int *linesize; |
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AVFrame **frames; |
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FFFrameSync fs; |
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int (*median_frames)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs); |
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} XMedianContext; |
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static const enum AVPixelFormat pixel_fmts[] = { |
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AV_PIX_FMT_GRAY8, |
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AV_PIX_FMT_GRAY9, |
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AV_PIX_FMT_GRAY10, |
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AV_PIX_FMT_GRAY12, |
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AV_PIX_FMT_GRAY14, |
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AV_PIX_FMT_GRAY16, |
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AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P, |
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AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, |
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AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P, |
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AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P, |
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AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P, |
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AV_PIX_FMT_YUVJ411P, |
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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_YUV440P10, |
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AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV420P12, |
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AV_PIX_FMT_YUV440P12, |
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AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14, |
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AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, |
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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_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P, |
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AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA444P16, |
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AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA422P16, |
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AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA420P16, |
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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_NONE |
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}; |
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static av_cold int init(AVFilterContext *ctx) |
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{ |
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XMedianContext *s = ctx->priv; |
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if (!s->xmedian) |
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s->nb_inputs = s->radius * 2 + 1; |
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if (s->nb_inputs & 1) |
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s->index = s->radius * 2.f * s->percentile; |
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else |
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s->index = av_clip(s->radius * 2.f * s->percentile, 1, s->nb_inputs - 1); |
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s->frames = av_calloc(s->nb_inputs, sizeof(*s->frames)); |
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if (!s->frames) |
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return AVERROR(ENOMEM); |
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return 0; |
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} |
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typedef struct ThreadData { |
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AVFrame **in, *out; |
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} ThreadData; |
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static int compare8(const void *p1, const void *p2) |
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{ |
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int left = *(const uint8_t *)p1; |
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int right = *(const uint8_t *)p2; |
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return FFDIFFSIGN(left, right); |
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} |
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static int compare16(const void *p1, const void *p2) |
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{ |
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int left = *(const uint16_t *)p1; |
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int right = *(const uint16_t *)p2; |
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return FFDIFFSIGN(left, right); |
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} |
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#define MEDIAN_SLICE(name, type, comparei) \ |
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static int median_frames ## name(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \ |
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{ \ |
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XMedianContext *s = ctx->priv; \ |
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ThreadData *td = arg; \ |
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AVFrame **in = td->in; \ |
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AVFrame *out = td->out; \ |
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const int nb_inputs = s->nb_inputs; \ |
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uint8_t **srcf = s->data + jobnr * nb_inputs; \ |
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int *linesize = s->linesize + jobnr * nb_inputs; \ |
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const int radius = s->radius; \ |
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const int index = s->index; \ |
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type values[256]; \ |
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\ |
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for (int p = 0; p < s->nb_planes; p++) { \ |
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const int slice_start = (s->height[p] * jobnr) / nb_jobs; \ |
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const int slice_end = (s->height[p] * (jobnr+1)) / nb_jobs; \ |
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const int width = s->width[p]; \ |
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type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \ |
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ptrdiff_t dst_linesize = out->linesize[p] / sizeof(type); \ |
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\ |
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if (!((1 << p) & s->planes)) { \ |
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av_image_copy_plane((uint8_t *)dst, out->linesize[p], \ |
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in[radius]->data[p] + slice_start * in[radius]->linesize[p], \ |
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in[radius]->linesize[p], \ |
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s->linesizes[p], slice_end - slice_start); \ |
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continue; \ |
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} \ |
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\ |
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for (int i = 0; i < nb_inputs; i++) \ |
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linesize[i] = in[i]->linesize[p]; \ |
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\ |
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for (int i = 0; i < nb_inputs; i++) \ |
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srcf[i] = in[i]->data[p] + slice_start * linesize[i]; \ |
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\ |
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for (int y = slice_start; y < slice_end; y++) { \ |
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for (int x = 0; x < width; x++) { \ |
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for (int i = 0; i < nb_inputs; i++) { \ |
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const type *src = (const type *)srcf[i]; \ |
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values[i] = src[x]; \ |
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} \ |
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\ |
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AV_QSORT(values, nb_inputs, type, comparei); \ |
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if (nb_inputs & 1) \ |
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dst[x] = values[index]; \ |
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else \ |
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dst[x] = (values[index] + values[index - 1]) >> 1; \ |
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} \ |
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\ |
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dst += dst_linesize; \ |
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for (int i = 0; i < nb_inputs; i++) \ |
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srcf[i] += linesize[i]; \ |
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} \ |
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} \ |
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\ |
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return 0; \ |
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} |
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MEDIAN_SLICE(8, uint8_t, compare8) |
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MEDIAN_SLICE(16, uint16_t, compare16) |
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static void update_index(XMedianContext *s) |
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{ |
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if (s->nb_inputs & 1) |
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s->index = s->radius * 2.f * s->percentile; |
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else |
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s->index = av_clip(s->radius * 2.f * s->percentile, 1, s->nb_inputs - 1); |
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} |
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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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AVFilterLink *outlink = ctx->outputs[0]; |
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XMedianContext *s = fs->opaque; |
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AVFrame **in = s->frames; |
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AVFrame *out; |
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ThreadData td; |
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int i, ret; |
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update_index(s); |
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for (i = 0; i < s->nb_inputs; i++) { |
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if ((ret = ff_framesync_get_frame(&s->fs, i, &in[i], 0)) < 0) |
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return ret; |
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} |
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if (ctx->is_disabled) { |
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out = av_frame_clone(in[0]); |
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} else { |
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out = ff_get_video_buffer(outlink, outlink->w, outlink->h); |
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} |
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if (!out) |
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return AVERROR(ENOMEM); |
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out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base); |
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if (!ctx->is_disabled) { |
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td.in = in; |
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td.out = out; |
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ff_filter_execute(ctx, s->median_frames, &td, NULL, |
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FFMIN(s->height[1], s->nb_threads)); |
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} |
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return ff_filter_frame(outlink, out); |
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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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XMedianContext *s = ctx->priv; |
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AVRational frame_rate = ctx->inputs[0]->frame_rate; |
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AVRational sar = ctx->inputs[0]->sample_aspect_ratio; |
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AVFilterLink *inlink = ctx->inputs[0]; |
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int height = ctx->inputs[0]->h; |
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int width = ctx->inputs[0]->w; |
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FFFrameSyncIn *in; |
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int i, ret; |
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for (int i = 1; i < s->nb_inputs && s->xmedian; i++) { |
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if (ctx->inputs[i]->h != height || ctx->inputs[i]->w != width) { |
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av_log(ctx, AV_LOG_ERROR, "Input %d size (%dx%d) does not match input %d size (%dx%d).\n", i, ctx->inputs[i]->w, ctx->inputs[i]->h, 0, width, height); |
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return AVERROR(EINVAL); |
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} |
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} |
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s->desc = av_pix_fmt_desc_get(outlink->format); |
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if (!s->desc) |
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return AVERROR_BUG; |
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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->nb_threads = ff_filter_get_nb_threads(ctx); |
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if (s->depth <= 8) |
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s->median_frames = median_frames8; |
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else |
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s->median_frames = median_frames16; |
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266 |
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if ((ret = av_image_fill_linesizes(s->linesizes, inlink->format, inlink->w)) < 0) |
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return ret; |
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s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, s->desc->log2_chroma_w); |
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s->width[0] = s->width[3] = inlink->w; |
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s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, s->desc->log2_chroma_h); |
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s->height[0] = s->height[3] = inlink->h; |
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s->data = av_calloc(s->nb_threads * s->nb_inputs, sizeof(*s->data)); |
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if (!s->data) |
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return AVERROR(ENOMEM); |
277 |
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278 |
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s->linesize = av_calloc(s->nb_threads * s->nb_inputs, sizeof(*s->linesize)); |
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if (!s->linesize) |
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return AVERROR(ENOMEM); |
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if (!s->xmedian) |
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return 0; |
284 |
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285 |
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outlink->w = width; |
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outlink->h = height; |
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outlink->frame_rate = frame_rate; |
288 |
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outlink->sample_aspect_ratio = sar; |
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290 |
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if ((ret = ff_framesync_init(&s->fs, ctx, s->nb_inputs)) < 0) |
291 |
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return ret; |
292 |
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293 |
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in = s->fs.in; |
294 |
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s->fs.opaque = s; |
295 |
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s->fs.on_event = process_frame; |
296 |
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297 |
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for (i = 0; i < s->nb_inputs; i++) { |
298 |
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AVFilterLink *inlink = ctx->inputs[i]; |
299 |
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300 |
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in[i].time_base = inlink->time_base; |
301 |
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in[i].sync = 1; |
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in[i].before = EXT_STOP; |
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in[i].after = EXT_INFINITY; |
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} |
305 |
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306 |
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ret = ff_framesync_configure(&s->fs); |
307 |
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outlink->time_base = s->fs.time_base; |
308 |
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309 |
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✗ |
return ret; |
310 |
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} |
311 |
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312 |
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✗ |
static av_cold void uninit(AVFilterContext *ctx) |
313 |
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{ |
314 |
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XMedianContext *s = ctx->priv; |
315 |
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316 |
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ff_framesync_uninit(&s->fs); |
317 |
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318 |
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for (int i = 0; i < s->nb_frames && s->frames && !s->xmedian; i++) |
319 |
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av_frame_free(&s->frames[i]); |
320 |
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av_freep(&s->frames); |
321 |
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av_freep(&s->data); |
322 |
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av_freep(&s->linesize); |
323 |
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} |
324 |
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325 |
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✗ |
static int activate(AVFilterContext *ctx) |
326 |
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{ |
327 |
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✗ |
XMedianContext *s = ctx->priv; |
328 |
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return ff_framesync_activate(&s->fs); |
329 |
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} |
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331 |
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static const AVFilterPad outputs[] = { |
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{ |
333 |
|
|
.name = "default", |
334 |
|
|
.type = AVMEDIA_TYPE_VIDEO, |
335 |
|
|
.config_props = config_output, |
336 |
|
|
}, |
337 |
|
|
}; |
338 |
|
|
|
339 |
|
|
#if CONFIG_XMEDIAN_FILTER |
340 |
|
✗ |
static av_cold int xmedian_init(AVFilterContext *ctx) |
341 |
|
|
{ |
342 |
|
✗ |
XMedianContext *s = ctx->priv; |
343 |
|
|
int ret; |
344 |
|
|
|
345 |
|
✗ |
s->xmedian = 1; |
346 |
|
|
|
347 |
|
✗ |
s->radius = s->nb_inputs / 2; |
348 |
|
|
|
349 |
|
✗ |
for (int i = 0; i < s->nb_inputs; i++) { |
350 |
|
✗ |
AVFilterPad pad = { 0 }; |
351 |
|
|
|
352 |
|
✗ |
pad.type = AVMEDIA_TYPE_VIDEO; |
353 |
|
✗ |
pad.name = av_asprintf("input%d", i); |
354 |
|
✗ |
if (!pad.name) |
355 |
|
✗ |
return AVERROR(ENOMEM); |
356 |
|
|
|
357 |
|
✗ |
if ((ret = ff_append_inpad_free_name(ctx, &pad)) < 0) |
358 |
|
✗ |
return ret; |
359 |
|
|
} |
360 |
|
|
|
361 |
|
✗ |
return init(ctx); |
362 |
|
|
} |
363 |
|
|
|
364 |
|
|
#define OFFSET(x) offsetof(XMedianContext, x) |
365 |
|
|
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM |
366 |
|
|
#define TFLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM |
367 |
|
|
|
368 |
|
|
static const AVOption xmedian_options[] = { |
369 |
|
|
{ "inputs", "set number of inputs", OFFSET(nb_inputs), AV_OPT_TYPE_INT, {.i64=3}, 3, 255, .flags = FLAGS }, |
370 |
|
|
{ "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=15}, 0, 15, .flags =TFLAGS }, |
371 |
|
|
{ "percentile", "set percentile", OFFSET(percentile),AV_OPT_TYPE_FLOAT,{.dbl=0.5}, 0, 1, .flags =TFLAGS }, |
372 |
|
|
{ NULL }, |
373 |
|
|
}; |
374 |
|
|
|
375 |
|
✗ |
FRAMESYNC_DEFINE_CLASS(xmedian, XMedianContext, fs); |
376 |
|
|
|
377 |
|
|
const AVFilter ff_vf_xmedian = { |
378 |
|
|
.name = "xmedian", |
379 |
|
|
.description = NULL_IF_CONFIG_SMALL("Pick median pixels from several video inputs."), |
380 |
|
|
.priv_size = sizeof(XMedianContext), |
381 |
|
|
.priv_class = &xmedian_class, |
382 |
|
|
FILTER_OUTPUTS(outputs), |
383 |
|
|
FILTER_PIXFMTS_ARRAY(pixel_fmts), |
384 |
|
|
.preinit = xmedian_framesync_preinit, |
385 |
|
|
.init = xmedian_init, |
386 |
|
|
.uninit = uninit, |
387 |
|
|
.activate = activate, |
388 |
|
|
.flags = AVFILTER_FLAG_DYNAMIC_INPUTS | AVFILTER_FLAG_SLICE_THREADS | |
389 |
|
|
AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL, |
390 |
|
|
.process_command = ff_filter_process_command, |
391 |
|
|
}; |
392 |
|
|
|
393 |
|
|
#endif /* CONFIG_XMEDIAN_FILTER */ |
394 |
|
|
|
395 |
|
|
#if CONFIG_TMEDIAN_FILTER |
396 |
|
✗ |
static int tmedian_filter_frame(AVFilterLink *inlink, AVFrame *in) |
397 |
|
|
{ |
398 |
|
✗ |
AVFilterContext *ctx = inlink->dst; |
399 |
|
✗ |
AVFilterLink *outlink = ctx->outputs[0]; |
400 |
|
✗ |
XMedianContext *s = ctx->priv; |
401 |
|
|
ThreadData td; |
402 |
|
|
AVFrame *out; |
403 |
|
|
|
404 |
|
✗ |
update_index(s); |
405 |
|
|
|
406 |
|
✗ |
if (s->nb_frames < s->nb_inputs) { |
407 |
|
✗ |
s->frames[s->nb_frames] = in; |
408 |
|
✗ |
s->nb_frames++; |
409 |
|
✗ |
if (s->nb_frames < s->nb_inputs) |
410 |
|
✗ |
return 0; |
411 |
|
|
} else { |
412 |
|
✗ |
av_frame_free(&s->frames[0]); |
413 |
|
✗ |
memmove(&s->frames[0], &s->frames[1], sizeof(*s->frames) * (s->nb_inputs - 1)); |
414 |
|
✗ |
s->frames[s->nb_inputs - 1] = in; |
415 |
|
|
} |
416 |
|
|
|
417 |
|
✗ |
if (ctx->is_disabled) { |
418 |
|
✗ |
out = av_frame_clone(s->frames[0]); |
419 |
|
✗ |
if (!out) |
420 |
|
✗ |
return AVERROR(ENOMEM); |
421 |
|
✗ |
return ff_filter_frame(outlink, out); |
422 |
|
|
} |
423 |
|
|
|
424 |
|
✗ |
out = ff_get_video_buffer(outlink, outlink->w, outlink->h); |
425 |
|
✗ |
if (!out) |
426 |
|
✗ |
return AVERROR(ENOMEM); |
427 |
|
✗ |
out->pts = s->frames[0]->pts; |
428 |
|
|
|
429 |
|
✗ |
td.out = out; |
430 |
|
✗ |
td.in = s->frames; |
431 |
|
✗ |
ff_filter_execute(ctx, s->median_frames, &td, NULL, |
432 |
|
✗ |
FFMIN(s->height[1], s->nb_threads)); |
433 |
|
|
|
434 |
|
✗ |
return ff_filter_frame(outlink, out); |
435 |
|
|
} |
436 |
|
|
|
437 |
|
|
static const AVOption tmedian_options[] = { |
438 |
|
|
{ "radius", "set median filter radius", OFFSET(radius), AV_OPT_TYPE_INT, {.i64=1}, 1, 127, .flags = FLAGS }, |
439 |
|
|
{ "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=15}, 0, 15, .flags =TFLAGS }, |
440 |
|
|
{ "percentile", "set percentile", OFFSET(percentile), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, .flags =TFLAGS }, |
441 |
|
|
{ NULL }, |
442 |
|
|
}; |
443 |
|
|
|
444 |
|
|
static const AVFilterPad tmedian_inputs[] = { |
445 |
|
|
{ |
446 |
|
|
.name = "default", |
447 |
|
|
.type = AVMEDIA_TYPE_VIDEO, |
448 |
|
|
.filter_frame = tmedian_filter_frame, |
449 |
|
|
}, |
450 |
|
|
}; |
451 |
|
|
|
452 |
|
|
AVFILTER_DEFINE_CLASS(tmedian); |
453 |
|
|
|
454 |
|
|
const AVFilter ff_vf_tmedian = { |
455 |
|
|
.name = "tmedian", |
456 |
|
|
.description = NULL_IF_CONFIG_SMALL("Pick median pixels from successive frames."), |
457 |
|
|
.priv_size = sizeof(XMedianContext), |
458 |
|
|
.priv_class = &tmedian_class, |
459 |
|
|
FILTER_INPUTS(tmedian_inputs), |
460 |
|
|
FILTER_OUTPUTS(outputs), |
461 |
|
|
FILTER_PIXFMTS_ARRAY(pixel_fmts), |
462 |
|
|
.init = init, |
463 |
|
|
.uninit = uninit, |
464 |
|
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS, |
465 |
|
|
.process_command = ff_filter_process_command, |
466 |
|
|
}; |
467 |
|
|
|
468 |
|
|
#endif /* CONFIG_TMEDIAN_FILTER */ |
469 |
|
|
|