doxygen/4.1/vf__removegrain_8c_source.html

 /*

  * Copyright (c) 2012 Laurent de Soras

  * Copyright (c) 2013 Fredrik Mellbin

  * Copyright (c) 2015 Paul B Mahol

  * Copyright (c) 2015 James Darnley

  *

  * This file is part of FFmpeg.

  *

  * FFmpeg is free software; you can redistribute it and/or

  * modify it under the terms of the GNU Lesser General Public

  * License as published by the Free Software Foundation; either

  * version 2.1 of the License, or (at your option) any later version.

  *

  * FFmpeg is distributed in the hope that it will be useful,

  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  * Lesser General Public License for more details.

  *

  * You should have received a copy of the GNU Lesser General Public

  * License along with FFmpeg; if not, write to the Free Software

  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  */


 #include "libavutil/imgutils.h"

 #include "libavutil/opt.h"

 #include "libavutil/pixdesc.h"

 #include "libavutil/qsort.h"

 #include "avfilter.h"

 #include "formats.h"

 #include "internal.h"

 #include "removegrain.h"

 #include "video.h"


 #define OFFSET(x) offsetof(RemoveGrainContext, x)

 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM


 static const AVOption removegrain_options[] = {

     { "m0", "set mode for 1st plane", OFFSET(mode[0]), AV_OPT_TYPE_INT, {.i64=0}, 0, 24, FLAGS },

     { "m1", "set mode for 2nd plane", OFFSET(mode[1]), AV_OPT_TYPE_INT, {.i64=0}, 0, 24, FLAGS },

     { "m2", "set mode for 3rd plane", OFFSET(mode[2]), AV_OPT_TYPE_INT, {.i64=0}, 0, 24, FLAGS },

     { "m3", "set mode for 4th plane", OFFSET(mode[3]), AV_OPT_TYPE_INT, {.i64=0}, 0, 24, FLAGS },

     {NULL}

 };


 AVFILTER_DEFINE_CLASS(removegrain);


 static int query_formats(AVFilterContext *ctx)

 {

     static const enum AVPixelFormat pix_fmts[] = {

         AV_PIX_FMT_GRAY8,

         AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV444P,

         AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,

         AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,

         AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,

         AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P,

         AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,

         AV_PIX_FMT_NONE

     };


     AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);

     if (!fmts_list)

         return AVERROR(ENOMEM);

     return ff_set_common_formats(ctx, fmts_list);

 }


 #define REMOVE_GRAIN_SORT_AXIS       \

     const int ma1 = FFMAX(a1, a8);   \

     const int mi1 = FFMIN(a1, a8);   \

     const int ma2 = FFMAX(a2, a7);   \

     const int mi2 = FFMIN(a2, a7);   \

     const int ma3 = FFMAX(a3, a6);   \

     const int mi3 = FFMIN(a3, a6);   \

     const int ma4 = FFMAX(a4, a5);   \

     const int mi4 = FFMIN(a4, a5);


 static int mode01(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)

 {

     const int mi = FFMIN(FFMIN(FFMIN(a1, a2), FFMIN(a3, a4)), FFMIN(FFMIN(a5, a6), FFMIN(a7, a8)));

     const int ma = FFMAX(FFMAX(FFMAX(a1, a2), FFMAX(a3, a4)), FFMAX(FFMAX(a5, a6), FFMAX(a7, a8)));


     return av_clip(c, mi, ma);

 }


 static int cmp_int(const void *p1, const void *p2)

 {

     int left  = *(const int *)p1;

     int right = *(const int *)p2;

     return FFDIFFSIGN(left, right);

 }


 static int mode02(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)

 {

     int a[8] = { a1, a2, a3, a4, a5, a6, a7, a8 };


     AV_QSORT(a, 8, int, cmp_int);


     return av_clip(c, a[2 - 1 ], a[7 - 1]);

 }


 static int mode03(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)

 {

     int a[8] = { a1, a2, a3, a4, a5, a6, a7, a8 };


     AV_QSORT(a, 8, int, cmp_int);


     return av_clip(c, a[3 - 1 ], a[6 - 1]);

 }


 static int mode04(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)

 {

     int a[8] = { a1, a2, a3, a4, a5, a6, a7, a8 };


     AV_QSORT(a, 8, int, cmp_int);


     return av_clip(c, a[4 - 1 ], a[5 - 1]);

 }


 static int mode05(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)

 {

     REMOVE_GRAIN_SORT_AXIS


     const int c1 = FFABS(c - av_clip(c, mi1, ma1));

     const int c2 = FFABS(c - av_clip(c, mi2, ma2));

     const int c3 = FFABS(c - av_clip(c, mi3, ma3));

     const int c4 = FFABS(c - av_clip(c, mi4, ma4));


     const int mindiff = FFMIN(FFMIN(c1, c2), FFMIN(c3, c4));


     /* When adding SIMD notice the return order here: 4, 2, 3, 1. */

     if (mindiff == c4) {

         return av_clip(c, mi4, ma4);

     } else if (mindiff == c2) {

         return av_clip(c, mi2, ma2);

     } else if (mindiff == c3) {

         return av_clip(c, mi3, ma3);

     }


     return av_clip(c, mi1, ma1);

 }


 static int mode06(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)

 {

     REMOVE_GRAIN_SORT_AXIS


     const int d1 = ma1 - mi1;

     const int d2 = ma2 - mi2;

     const int d3 = ma3 - mi3;

     const int d4 = ma4 - mi4;


     const int cli1 = av_clip(c, mi1, ma1);

     const int cli2 = av_clip(c, mi2, ma2);

     const int cli3 = av_clip(c, mi3, ma3);

     const int cli4 = av_clip(c, mi4, ma4);


     const int c1 = av_clip_uint16((FFABS(c - cli1) << 1) + d1);

     const int c2 = av_clip_uint16((FFABS(c - cli2) << 1) + d2);

     const int c3 = av_clip_uint16((FFABS(c - cli3) << 1) + d3);

     const int c4 = av_clip_uint16((FFABS(c - cli4) << 1) + d4);


     const int mindiff = FFMIN(FFMIN(c1, c2), FFMIN(c3, c4));


     if (mindiff == c4) {

         return cli4;

     } else if (mindiff == c2) {

         return cli2;

     } else if (mindiff == c3) {

         return cli3;

     }


     return cli1;

 }


 static int mode07(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)

 {

     REMOVE_GRAIN_SORT_AXIS


     const int d1 = ma1 - mi1;

     const int d2 = ma2 - mi2;

     const int d3 = ma3 - mi3;

     const int d4 = ma4 - mi4;


     const int cli1 = av_clip(c, mi1, ma1);

     const int cli2 = av_clip(c, mi2, ma2);

     const int cli3 = av_clip(c, mi3, ma3);

     const int cli4 = av_clip(c, mi4, ma4);


     const int c1 = FFABS(c - cli1) + d1;

     const int c2 = FFABS(c - cli2) + d2;

     const int c3 = FFABS(c - cli3) + d3;

     const int c4 = FFABS(c - cli4) + d4;


     const int mindiff = FFMIN(FFMIN(c1, c2), FFMIN(c3, c4));


     if (mindiff == c4) {

         return cli4;

     } else if (mindiff == c2) {

         return cli2;

     } else if (mindiff == c3) {

         return cli3;

     }


     return cli1;

 }


 static int mode08(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)

 {

     REMOVE_GRAIN_SORT_AXIS


     const int d1 = ma1 - mi1;

     const int d2 = ma2 - mi2;

     const int d3 = ma3 - mi3;

     const int d4 = ma4 - mi4;


     const int cli1 = av_clip(c, mi1, ma1);

     const int cli2 = av_clip(c, mi2, ma2);

     const int cli3 = av_clip(c, mi3, ma3);

     const int cli4 = av_clip(c, mi4, ma4);


     const int c1 = av_clip_uint16(FFABS(c - cli1) + (d1 << 1));

     const int c2 = av_clip_uint16(FFABS(c - cli2) + (d2 << 1));

     const int c3 = av_clip_uint16(FFABS(c - cli3) + (d3 << 1));

     const int c4 = av_clip_uint16(FFABS(c - cli4) + (d4 << 1));


     const int mindiff = FFMIN(FFMIN(c1, c2), FFMIN(c3, c4));


     if (mindiff == c4) {

         return cli4;

     } else if (mindiff == c2) {

         return cli2;

     } else if (mindiff == c3) {

         return cli3;

     }


     return cli1;

 }


 static int mode09(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)

 {

     REMOVE_GRAIN_SORT_AXIS


     const int d1 = ma1 - mi1;

     const int d2 = ma2 - mi2;

     const int d3 = ma3 - mi3;

     const int d4 = ma4 - mi4;


     const int mindiff = FFMIN(FFMIN(d1, d2), FFMIN(d3, d4));


     if (mindiff == d4) {

         return av_clip(c, mi4, ma4);

     } else if (mindiff == d2) {

         return av_clip(c, mi2, ma2);

     } else if (mindiff == d3) {

         return av_clip(c, mi3, ma3);

     }


     return av_clip(c, mi1, ma1);

 }


 static int mode10(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)

 {

     const int d1 = FFABS(c - a1);

     const int d2 = FFABS(c - a2);

     const int d3 = FFABS(c - a3);

     const int d4 = FFABS(c - a4);

     const int d5 = FFABS(c - a5);

     const int d6 = FFABS(c - a6);

     const int d7 = FFABS(c - a7);

     const int d8 = FFABS(c - a8);


     const int mindiff = FFMIN(FFMIN(FFMIN(d1, d2), FFMIN(d3, d4)),

                               FFMIN(FFMIN(d5, d6), FFMIN(d7, d8)));


     if (mindiff == d7) return a7;

     if (mindiff == d8) return a8;

     if (mindiff == d6) return a6;

     if (mindiff == d2) return a2;

     if (mindiff == d3) return a3;

     if (mindiff == d1) return a1;

     if (mindiff == d5) return a5;


     return a4;

 }


 static int mode1112(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)

 {

     const int sum = 4 * c + 2 * (a2 + a4 + a5 + a7) + a1 + a3 + a6 + a8;

     const int val = (sum + 8) >> 4;


     return val;

 }


 static int mode1314(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)

 {

     const int d1 = FFABS(a1 - a8);

     const int d2 = FFABS(a2 - a7);

     const int d3 = FFABS(a3 - a6);


     const int mindiff = FFMIN(FFMIN(d1, d2), d3);


     if (mindiff == d2) {

         return (a2 + a7 + 1) >> 1;

     }

     if (mindiff == d3) {

         return (a3 + a6 + 1) >> 1;

     }


     return (a1 + a8 + 1) >> 1;

 }


 static int mode1516(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)

 {

     const int d1 = FFABS(a1 - a8);

     const int d2 = FFABS(a2 - a7);

     const int d3 = FFABS(a3 - a6);


     const int mindiff = FFMIN(FFMIN(d1, d2), d3);

     const int average = (2 * (a2 + a7) + a1 + a3 + a6 + a8 + 4) >> 3;


     if (mindiff == d2) {

         return av_clip(average, FFMIN(a2, a7), FFMAX(a2, a7));

     }

     if (mindiff == d3) {

         return av_clip(average, FFMIN(a3, a6), FFMAX(a3, a6));

     }


     return av_clip(average, FFMIN(a1, a8), FFMAX(a1, a8));

 }


 static int mode17(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)

 {

     REMOVE_GRAIN_SORT_AXIS


     const int l = FFMAX(FFMAX(mi1, mi2), FFMAX(mi3, mi4));

     const int u = FFMIN(FFMIN(ma1, ma2), FFMIN(ma3, ma4));


     return av_clip(c, FFMIN(l, u), FFMAX(l, u));

 }


 static int mode18(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)

 {

     const int d1 = FFMAX(FFABS(c - a1), FFABS(c - a8));

     const int d2 = FFMAX(FFABS(c - a2), FFABS(c - a7));

     const int d3 = FFMAX(FFABS(c - a3), FFABS(c - a6));

     const int d4 = FFMAX(FFABS(c - a4), FFABS(c - a5));


     const int mindiff = FFMIN(FFMIN(d1, d2), FFMIN(d3, d4));


     if (mindiff == d4) {

         return av_clip(c, FFMIN(a4, a5), FFMAX(a4, a5));

     }

     if (mindiff == d2) {

         return av_clip(c, FFMIN(a2, a7), FFMAX(a2, a7));

     }

     if (mindiff == d3) {

         return av_clip(c, FFMIN(a3, a6), FFMAX(a3, a6));

     }


     return av_clip(c, FFMIN(a1, a8), FFMAX(a1, a8));

 }


 static int mode19(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)

 {

     const int sum = a1 + a2 + a3 + a4 + a5 + a6 + a7 + a8;

     const int val = (sum + 4) >> 3;


     return val;

 }


 static int mode20(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)

 {

     const int sum = a1 + a2 + a3 + a4 + c + a5 + a6 + a7 + a8;

     const int val = (sum + 4) / 9;


     return val;

 }


 static int mode21(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)

 {

     const int l1l = (a1 + a8) >> 1;

     const int l2l = (a2 + a7) >> 1;

     const int l3l = (a3 + a6) >> 1;

     const int l4l = (a4 + a5) >> 1;


     const int l1h = (a1 + a8 + 1) >> 1;

     const int l2h = (a2 + a7 + 1) >> 1;

     const int l3h = (a3 + a6 + 1) >> 1;

     const int l4h = (a4 + a5 + 1) >> 1;


     const int mi = FFMIN(FFMIN(l1l, l2l), FFMIN(l3l, l4l));

     const int ma = FFMAX(FFMAX(l1h, l2h), FFMAX(l3h, l4h));


     return av_clip(c, mi, ma);

 }


 static int mode22(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)

 {

     const int l1 = (a1 + a8 + 1) >> 1;

     const int l2 = (a2 + a7 + 1) >> 1;

     const int l3 = (a3 + a6 + 1) >> 1;

     const int l4 = (a4 + a5 + 1) >> 1;


     const int mi = FFMIN(FFMIN(l1, l2), FFMIN(l3, l4));

     const int ma = FFMAX(FFMAX(l1, l2), FFMAX(l3, l4));


     return av_clip(c, mi, ma);

 }


 static int mode23(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)

 {

     REMOVE_GRAIN_SORT_AXIS


     const int linediff1 = ma1 - mi1;

     const int linediff2 = ma2 - mi2;

     const int linediff3 = ma3 - mi3;

     const int linediff4 = ma4 - mi4;


     const int u1 = FFMIN(c - ma1, linediff1);

     const int u2 = FFMIN(c - ma2, linediff2);

     const int u3 = FFMIN(c - ma3, linediff3);

     const int u4 = FFMIN(c - ma4, linediff4);

     const int u = FFMAX(FFMAX(FFMAX(u1, u2), FFMAX(u3, u4)), 0);


     const int d1 = FFMIN(mi1 - c, linediff1);

     const int d2 = FFMIN(mi2 - c, linediff2);

     const int d3 = FFMIN(mi3 - c, linediff3);

     const int d4 = FFMIN(mi4 - c, linediff4);

     const int d = FFMAX(FFMAX(FFMAX(d1, d2), FFMAX(d3, d4)), 0);


     return c - u + d;  // This probably will never overflow.

 }


 static int mode24(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)

 {

     REMOVE_GRAIN_SORT_AXIS


     const int linediff1 = ma1 - mi1;

     const int linediff2 = ma2 - mi2;

     const int linediff3 = ma3 - mi3;

     const int linediff4 = ma4 - mi4;


     const int tu1 = c - ma1;

     const int tu2 = c - ma2;

     const int tu3 = c - ma3;

     const int tu4 = c - ma4;


     const int u1 = FFMIN(tu1, linediff1 - tu1);

     const int u2 = FFMIN(tu2, linediff2 - tu2);

     const int u3 = FFMIN(tu3, linediff3 - tu3);

     const int u4 = FFMIN(tu4, linediff4 - tu4);

     const int u = FFMAX(FFMAX(FFMAX(u1, u2), FFMAX(u3, u4)), 0);


     const int td1 = mi1 - c;

     const int td2 = mi2 - c;

     const int td3 = mi3 - c;

     const int td4 = mi4 - c;


     const int d1 = FFMIN(td1, linediff1 - td1);

     const int d2 = FFMIN(td2, linediff2 - td2);

     const int d3 = FFMIN(td3, linediff3 - td3);

     const int d4 = FFMIN(td4, linediff4 - td4);

     const int d = FFMAX(FFMAX(FFMAX(d1, d2), FFMAX(d3, d4)), 0);


     return c - u + d;  // This probably will never overflow.

 }


 static int config_input(AVFilterLink *inlink)

 {

     RemoveGrainContext *s = inlink->dst->priv;

     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);

     int i;


     s->nb_planes = av_pix_fmt_count_planes(inlink->format);


     s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);

     s->planeheight[0] = s->planeheight[3] = inlink->h;

     s->planewidth[1]  = s->planewidth[2]  = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);

     s->planewidth[0]  = s->planewidth[3]  = inlink->w;


     for (i = 0; i < s->nb_planes; i++) {

         switch (s->mode[i]) {

         case 1:  s->rg[i] = mode01;   break;

         case 2:  s->rg[i] = mode02;   break;

         case 3:  s->rg[i] = mode03;   break;

         case 4:  s->rg[i] = mode04;   break;

         case 5:  s->rg[i] = mode05;   break;

         case 6:  s->rg[i] = mode06;   break;

         case 7:  s->rg[i] = mode07;   break;

         case 8:  s->rg[i] = mode08;   break;

         case 9:  s->rg[i] = mode09;   break;

         case 10: s->rg[i] = mode10;   break;

         case 11: s->rg[i] = mode1112; break;

         case 12: s->rg[i] = mode1112; break;

         case 13: s->skip_odd = 1;

                  s->rg[i] = mode1314; break;

         case 14: s->skip_even = 1;

                  s->rg[i] = mode1314; break;

         case 15: s->skip_odd = 1;

                  s->rg[i] = mode1516; break;

         case 16: s->skip_even = 1;

                  s->rg[i] = mode1516; break;

         case 17: s->rg[i] = mode17;   break;

         case 18: s->rg[i] = mode18;   break;

         case 19: s->rg[i] = mode19;   break;

         case 20: s->rg[i] = mode20;   break;

         case 21: s->rg[i] = mode21;   break;

         case 22: s->rg[i] = mode22;   break;

         case 23: s->rg[i] = mode23;   break;

         case 24: s->rg[i] = mode24;   break;

         }

     }


     if (ARCH_X86)

         ff_removegrain_init_x86(s);


     return 0;

 }


 typedef struct ThreadData {

     AVFrame *in, *out;

     int plane;

 } ThreadData;


 static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)

 {

     RemoveGrainContext *s = ctx->priv;

     ThreadData *td = arg;

     AVFrame *in = td->in;

     AVFrame *out = td->out;

     const int i = td->plane;

     const int height = s->planeheight[i];

     const int om = in->linesize[i] - 1;

     const int o0 = in->linesize[i]    ;

     const int op = in->linesize[i] + 1;

     int start = (height *  jobnr   ) / nb_jobs;

     int end   = (height * (jobnr+1)) / nb_jobs;

     int x, y;


     start = FFMAX(1, start);

     end   = FFMIN(height-1, end);

     for (y = start; y < end; y++) {

         uint8_t *dst = out->data[i];

         uint8_t *src = in->data[i];


         src = in->data[i] + y * in->linesize[i];

         dst = out->data[i] + y * out->linesize[i];


         if (s->skip_even && !(y & 1)) {

             memcpy(dst, src, s->planewidth[i]);

             continue;

         }

         if (s->skip_odd && y & 1) {

             memcpy(dst, src, s->planewidth[i]);

             continue;

         }


         *dst++ = *src++;


         if (s->fl[i]) {

             int w_asm = (s->planewidth[i] - 2) & ~15;


             s->fl[i](dst, src, in->linesize[i], w_asm);


             x = 1 + w_asm;

             dst += w_asm;

             src += w_asm;

         } else

             x = 1;


         for (; x < s->planewidth[i] - 1; x++) {

             const int a1 = src[-op];

             const int a2 = src[-o0];

             const int a3 = src[-om];

             const int a4 = src[-1 ];

             const int c  = src[ 0 ];

             const int a5 = src[ 1 ];

             const int a6 = src[ om];

             const int a7 = src[ o0];

             const int a8 = src[ op];


             const int res = s->rg[i](c, a1, a2, a3, a4, a5, a6, a7, a8);


             *dst = res;

             dst++, src++;

         }

         dst[0] = src[0];

     }


     return 0;

 }


 static int filter_frame(AVFilterLink *inlink, AVFrame *in)

 {

     AVFilterContext *ctx = inlink->dst;

     AVFilterLink *outlink = ctx->outputs[0];

     RemoveGrainContext *s = ctx->priv;

     ThreadData td;

     AVFrame *out;

     int i;


     out = ff_get_video_buffer(outlink, outlink->w, outlink->h);

     if (!out) {

         av_frame_free(&in);

         return AVERROR(ENOMEM);

     }

     av_frame_copy_props(out, in);


     for (i = 0; i < s->nb_planes; i++) {

         uint8_t *dst = out->data[i];

         uint8_t *src = in->data[i];


         if (s->mode[i] == 0) {

             av_image_copy_plane(dst, out->linesize[i],

                                 src, in->linesize[i],

                                 s->planewidth[i], s->planeheight[i]);

             continue;

         }


         memcpy(dst, src, s->planewidth[i]);


         td.in = in; td.out = out; td.plane = i;

         ctx->internal->execute(ctx, filter_slice, &td, NULL,

                                FFMIN(s->planeheight[i], ff_filter_get_nb_threads(ctx)));


         src = in->data[i] + (s->planeheight[i] - 1) * in->linesize[i];

         dst = out->data[i] + (s->planeheight[i] - 1) * out->linesize[i];

         memcpy(dst, src, s->planewidth[i]);

     }


     av_frame_free(&in);

     return ff_filter_frame(outlink, out);

 }


 static const AVFilterPad removegrain_inputs[] = {

     {

         .name         = "default",

         .type         = AVMEDIA_TYPE_VIDEO,

         .filter_frame = filter_frame,

         .config_props = config_input,

     },

     { NULL }

 };


 static const AVFilterPad removegrain_outputs[] = {

     {

         .name = "default",

         .type = AVMEDIA_TYPE_VIDEO,

     },

     { NULL }

 };


 AVFilter ff_vf_removegrain = {

     .name          = "removegrain",

     .description   = NULL_IF_CONFIG_SMALL("Remove grain."),

     .priv_size     = sizeof(RemoveGrainContext),

     .query_formats = query_formats,

     .inputs        = removegrain_inputs,

     .outputs       = removegrain_outputs,

     .priv_class    = &removegrain_class,

     .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,

 };

NULL
#define NULL
Definition: coverity.c:32

val
const char const char void * val
Definition: avisynth_c.h:771

ff_removegrain_init_x86
void ff_removegrain_init_x86(RemoveGrainContext *rg)
Definition: vf_removegrain_init.c:50

ThreadData::out
AVFrame * out
Definition: af_adeclick.c:485

av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2446

AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:226

mi
#define mi
Definition: vf_colormatrix.c:108

mode08
static int mode08(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:205

AV_PIX_FMT_NONE
Definition: pixfmt.h:65

AVOption
AVOption.
Definition: opt.h:246

ma
#define ma
Definition: vf_colormatrix.c:100

AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71

imgutils.h
misc image utilities

av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2486

avfilter.h
Main libavfilter public API header.

desc
const char * desc
Definition: nvenc.c:65

AV_OPT_TYPE_INT
Definition: opt.h:223

AVFilterLink::h
int h
agreed upon image height
Definition: avfilter.h:450

AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168

filter_slice
static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_removegrain.c:523

ff_vf_removegrain
AVFilter ff_vf_removegrain
Definition: vf_removegrain.c:651

a1
#define a1
Definition: regdef.h:47

FLAGS
#define FLAGS
Definition: vf_removegrain.c:35

RemoveGrainContext::rg
int(* rg[4])(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: removegrain.h:38

ff_get_video_buffer
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:99

src
#define src
Definition: vp8dsp.c:254

AVPixFmtDescriptor::log2_chroma_w
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92

mode24
static int mode24(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:432

ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283

AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
Definition: avfilter.h:125

AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:60

ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1080

a3
#define a3
Definition: regdef.h:49

ThreadData::in
AVFrame * in
Definition: af_afftdn.c:1082

AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101

removegrain_options
static const AVOption removegrain_options[]
Definition: vf_removegrain.c:37

uint8_t
uint8_t
Definition: audio_convert.c:194

opt.h
AVOptions.

mode19
static int mode19(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:361

end
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90

u
#define u(width, name, range_min, range_max)
Definition: cbs_h2645.c:253

height
#define height

ThreadData::plane
int plane
Definition: vf_blend.c:57

AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:100

c1
static const uint64_t c1
Definition: murmur3.c:49

AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79

mode23
static int mode23(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:408

mode04
static int mode04(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:109

RemoveGrainContext::planeheight
int planeheight[4]
Definition: removegrain.h:34

video.h

RemoveGrainContext
Definition: removegrain.h:27

RemoveGrainContext::skip_even
int skip_even
Definition: removegrain.h:35

query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_removegrain.c:47

AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:54

AVFilterLink
A link between two filters.
Definition: avfilter.h:439

AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:176

ff_set_common_formats
int ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
A helper for query_formats() which sets all links to the same list of formats.
Definition: formats.c:568

td
#define td
Definition: regdef.h:70

AVPixFmtDescriptor::log2_chroma_h
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101

mode20
static int mode20(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:369

AVERROR
#define AVERROR(e)
Definition: error.h:43

av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:202

NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186

AVFilterContext::priv
void * priv
private data for use by the filter
Definition: avfilter.h:353

AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:116

arg
const char * arg
Definition: jacosubdec.c:66

RemoveGrainContext::skip_odd
int skip_odd
Definition: removegrain.h:36

mode1112
static int mode1112(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:284

FFMAX
#define FFMAX(a, b)
Definition: common.h:94

removegrain.h

AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70

AVFilterLink::w
int w
agreed upon image width
Definition: avfilter.h:449

FFDIFFSIGN
#define FFDIFFSIGN(x, y)
Comparator.
Definition: common.h:92

mode1314
static int mode1314(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:292

cmp_int
static int cmp_int(const void *p1, const void *p2)
Definition: vf_removegrain.c:84

pixdesc.h

ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:802

FFMIN
#define FFMIN(a, b)
Definition: common.h:96

AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78

mode09
static int mode09(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:237

ctx
AVFormatContext * ctx
Definition: movenc.c:48

a2
#define a2
Definition: regdef.h:48

REMOVE_GRAIN_SORT_AXIS
#define REMOVE_GRAIN_SORT_AXIS
Definition: vf_removegrain.c:66

FFABS
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72

s
#define s(width, name)
Definition: cbs_vp9.c:257

mode07
static int mode07(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:173

removegrain_inputs
static const AVFilterPad removegrain_inputs[]
Definition: vf_removegrain.c:633

inputs
static const AVFilterPad inputs[]
Definition: af_acontrast.c:193

outputs
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203

AVFilterLink::format
int format
agreed upon media format
Definition: avfilter.h:456

mode01
static int mode01(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:76

a5
#define a5
Definition: regdef.h:51

config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_removegrain.c:466

ThreadData
Used for passing data between threads.
Definition: af_adeclick.c:484

AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:257

AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:177

AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81

mode21
static int mode21(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:377

in
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
Definition: audio_convert.c:194

AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72

AVFilter
Filter definition.
Definition: avfilter.h:144

qsort.h

removegrain_outputs
static const AVFilterPad removegrain_outputs[]
Definition: vf_removegrain.c:643

RemoveGrainContext::nb_planes
int nb_planes
Definition: removegrain.h:32

AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:148

AVFilterContext::outputs
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350

pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:266

flags
#define flags(name, subs,...)
Definition: cbs_av1.c:596

mode06
static int mode06(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:141

AVFilterContext::internal
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:378

mode18
static int mode18(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:339

AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:240

mode10
static int mode10(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:259

op
static int op(uint8_t **dst, const uint8_t *dst_end, GetByteContext *gb, int pixel, int count, int *x, int width, int linesize)
Perform decode operation.
Definition: anm.c:78

AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66

mode17
static int mode17(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:329

AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74

mode03
static int mode03(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:100

AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215

c
static double c[64]
Definition: vsrc_mptestsrc.c:87

AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80

c2
static const uint64_t c2
Definition: murmur3.c:50

AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73

AVFilterInternal::execute
avfilter_execute_func * execute
Definition: internal.h:155

a4
#define a4
Definition: regdef.h:50

OFFSET
#define OFFSET(x)
Definition: vf_removegrain.c:34

mode1516
static int mode1516(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:310

AVFilterLink::dst
AVFilterContext * dst
dest filter
Definition: avfilter.h:443

RemoveGrainContext::planewidth
int planewidth[4]
Definition: removegrain.h:33

AVFilterFormats
A list of supported formats for one end of a filter link.
Definition: formats.h:64

AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:258

formats.h

AVFilterContext
An instance of a filter.
Definition: avfilter.h:338

mode22
static int mode22(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:395

out
FILE * out
Definition: movenc.c:54

AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99

start
void INT64 start
Definition: avisynth_c.h:690

mode02
static int mode02(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:91

AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201

RemoveGrainContext::mode
int mode[4]
Definition: removegrain.h:30

AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(removegrain)

filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_removegrain.c:591

av_image_copy_plane
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
Definition: imgutils.c:338

internal.h
internal API functions

mode05
static int mode05(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
Definition: vf_removegrain.c:118

AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64

mode
mode
Use these values in ebur128_init (or'ed).
Definition: ebur128.h:83

AV_QSORT
#define AV_QSORT(p, num, type, cmp)
Quicksort This sort is fast, and fully inplace but not stable and it is possible to construct input t...
Definition: qsort.h:33

av_frame_copy_props
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:654

RemoveGrainContext::fl
void(* fl[4])(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int pixels)
Definition: removegrain.h:40

a
a
Definition: h264pred_template.c:468

AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58