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FFmpeg/libavfilter/vf_removegrain.c
Andreas Rheinhardt b4f5201967 avfilter: Replace query_formats callback with union of list and callback 
If one looks at the many query_formats callbacks in existence,
one will immediately recognize that there is one type of default
callback for video and a slightly different default callback for
audio: It is "return ff_set_common_formats_from_list(ctx, pix_fmts);"
for video with a filter-specific pix_fmts list. For audio, it is
the same with a filter-specific sample_fmts list together with
ff_set_common_all_samplerates() and ff_set_common_all_channel_counts().

This commit allows to remove the boilerplate query_formats callbacks
by replacing said callback with a union consisting the old callback
and pointers for pixel and sample format arrays. For the not uncommon
case in which these lists only contain a single entry (besides the
sentinel) enum AVPixelFormat and enum AVSampleFormat fields are also
added to the union to store them directly in the AVFilter,
thereby avoiding a relocation.

The state of said union will be contained in a new, dedicated AVFilter
field (the nb_inputs and nb_outputs fields have been shrunk to uint8_t
in order to create a hole for this new field; this is no problem, as
the maximum of all the nb_inputs is four; for nb_outputs it is only
two).

The state's default value coincides with the earlier default of
query_formats being unset, namely that the filter accepts all formats
(and also sample rates and channel counts/layouts for audio)
provided that these properties agree coincide for all inputs and
outputs.

By using different union members for audio and video filters
the type-unsafety of using the same functions for audio and video
lists will furthermore be more confined to formats.c than before.

When the new fields are used, they will also avoid allocations:
Currently something nearly equivalent to ff_default_query_formats()
is called after every successful call to a query_formats callback;
yet in the common case that the newly allocated AVFilterFormats
are not used at all (namely if there are no free links) these newly
allocated AVFilterFormats are freed again without ever being used.
Filters no longer using the callback will not exhibit this any more.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2021-10-05 17:48:25 +02:00

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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
};
return ff_set_common_formats_from_list(ctx, pix_fmts);
}
#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;
ff_filter_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,
},
};
static const AVFilterPad removegrain_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
},
};
const AVFilter ff_vf_removegrain = {
.name = "removegrain",
.description = NULL_IF_CONFIG_SMALL("Remove grain."),
.priv_size = sizeof(RemoveGrainContext),
FILTER_INPUTS(removegrain_inputs),
FILTER_OUTPUTS(removegrain_outputs),
FILTER_QUERY_FUNC(query_formats),
.priv_class = &removegrain_class,
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
};
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