mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
407 lines
17 KiB
C
407 lines
17 KiB
C
/*
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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 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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#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; \
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}
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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)
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{
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AVFilterContext *ctx = outlink->src;
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DedotContext *s = ctx->priv;
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AVFilterLink *inlink = ctx->inputs[0];
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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->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;
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if (s->depth <= 8) {
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s->dedotcrawl = dedotcrawl8;
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s->derainbow = derainbow8;
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} else {
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s->dedotcrawl = dedotcrawl16;
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s->derainbow = derainbow16;
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}
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return 0;
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}
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static int activate(AVFilterContext *ctx)
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{
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AVFilterLink *inlink = ctx->inputs[0];
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AVFilterLink *outlink = ctx->outputs[0];
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DedotContext *s = ctx->priv;
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AVFrame *frame = NULL;
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int64_t pts;
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int status;
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int ret = 0;
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FF_FILTER_FORWARD_STATUS_BACK(outlink, inlink);
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if (s->eof == 0) {
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ret = ff_inlink_consume_frame(inlink, &frame);
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if (ret < 0)
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return ret;
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}
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if (frame || s->eof_frames > 0) {
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AVFrame *out = NULL;
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if (frame) {
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for (int i = 2; i < 5; i++) {
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if (!s->frames[i])
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s->frames[i] = av_frame_clone(frame);
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}
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av_frame_free(&frame);
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} else if (s->frames[3]) {
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s->eof_frames--;
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s->frames[4] = av_frame_clone(s->frames[3]);
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}
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if (s->frames[0] &&
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s->frames[1] &&
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s->frames[2] &&
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s->frames[3] &&
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s->frames[4]) {
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out = av_frame_clone(s->frames[2]);
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if (out && !ctx->is_disabled) {
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ret = av_frame_make_writable(out);
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if (ret >= 0) {
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if (s->m & 1)
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ff_filter_execute(ctx, s->dedotcrawl, out, NULL,
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FFMIN(ff_filter_get_nb_threads(ctx),
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s->planeheight[0]));
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if (s->m & 2) {
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ThreadData td;
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td.out = out; td.plane = 1;
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ff_filter_execute(ctx, s->derainbow, &td, NULL,
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FFMIN(ff_filter_get_nb_threads(ctx),
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s->planeheight[1]));
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td.plane = 2;
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ff_filter_execute(ctx, s->derainbow, &td, NULL,
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FFMIN(ff_filter_get_nb_threads(ctx),
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s->planeheight[2]));
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}
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} else
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av_frame_free(&out);
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} else if (!out) {
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ret = AVERROR(ENOMEM);
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}
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}
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av_frame_free(&s->frames[0]);
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s->frames[0] = s->frames[1];
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s->frames[1] = s->frames[2];
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s->frames[2] = s->frames[3];
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s->frames[3] = s->frames[4];
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s->frames[4] = NULL;
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if (ret < 0)
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return ret;
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if (out)
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return ff_filter_frame(outlink, out);
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}
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if (s->eof) {
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if (s->eof_frames <= 0) {
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ff_outlink_set_status(outlink, AVERROR_EOF, s->frames[2]->pts);
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} else {
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ff_filter_set_ready(ctx, 10);
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}
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return 0;
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}
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if (!s->eof && ff_inlink_acknowledge_status(inlink, &status, &pts)) {
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if (status == AVERROR_EOF) {
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s->eof = 1;
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s->eof_frames = !!s->frames[0] + !!s->frames[1];
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if (s->eof_frames <= 0) {
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ff_outlink_set_status(outlink, AVERROR_EOF, pts);
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return 0;
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}
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ff_filter_set_ready(ctx, 10);
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return 0;
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}
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}
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FF_FILTER_FORWARD_WANTED(outlink, inlink);
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return FFERROR_NOT_READY;
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}
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static av_cold void uninit(AVFilterContext *ctx)
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{
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DedotContext *s = ctx->priv;
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for (int i = 0; i < 5; i++)
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av_frame_free(&s->frames[i]);
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}
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#define OFFSET(x) offsetof(DedotContext, x)
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#define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
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static const AVOption dedot_options[] = {
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{ "m", "set filtering mode", OFFSET( m), AV_OPT_TYPE_FLAGS, {.i64=3}, 0, 3, FLAGS, "m" },
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{ "dotcrawl", 0, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "m" },
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{ "rainbows", 0, 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, FLAGS, "m" },
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{ "lt", "set spatial luma threshold", OFFSET(lt), AV_OPT_TYPE_FLOAT, {.dbl=.079}, 0, 1, FLAGS },
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{ "tl", "set tolerance for temporal luma", OFFSET(tl), AV_OPT_TYPE_FLOAT, {.dbl=.079}, 0, 1, FLAGS },
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{ "tc", "set tolerance for chroma temporal variation", OFFSET(tc), AV_OPT_TYPE_FLOAT, {.dbl=.058}, 0, 1, FLAGS },
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{ "ct", "set temporal chroma threshold", OFFSET(ct), AV_OPT_TYPE_FLOAT, {.dbl=.019}, 0, 1, FLAGS },
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{ NULL },
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};
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static const AVFilterPad inputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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},
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};
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static const AVFilterPad outputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.config_props = config_output,
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},
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};
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AVFILTER_DEFINE_CLASS(dedot);
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const AVFilter ff_vf_dedot = {
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.name = "dedot",
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.description = NULL_IF_CONFIG_SMALL("Reduce cross-luminance and cross-color."),
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.priv_size = sizeof(DedotContext),
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.priv_class = &dedot_class,
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.activate = activate,
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.uninit = uninit,
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FILTER_INPUTS(inputs),
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FILTER_OUTPUTS(outputs),
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FILTER_PIXFMTS_ARRAY(pixel_fmts),
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.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
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};
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