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FFmpeg4/libavfilter/vf_removegrain.c

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/*
* 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,
};
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