mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-28 20:53:54 +02:00
6d75d44d90
All that remains in it are things that belong in avfilter_internal.h. Move them there and remove internal.h
417 lines
14 KiB
C
417 lines
14 KiB
C
/*
|
|
* Copyright (c) 2017 Paul B Mahol
|
|
*
|
|
* 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/mem.h"
|
|
#include "libavutil/opt.h"
|
|
#include "libavutil/intreadwrite.h"
|
|
#include "libavutil/pixdesc.h"
|
|
#include "avfilter.h"
|
|
#include "filters.h"
|
|
#include "video.h"
|
|
|
|
typedef struct Points {
|
|
uint16_t x, y;
|
|
} Points;
|
|
|
|
typedef struct FloodfillContext {
|
|
const AVClass *class;
|
|
|
|
int x, y;
|
|
int s[4];
|
|
int S[4];
|
|
int d[4];
|
|
|
|
int nb_planes;
|
|
int back, front;
|
|
Points *points;
|
|
|
|
int (*is_same)(const AVFrame *frame, int x, int y,
|
|
unsigned s0, unsigned s1, unsigned s2, unsigned s3);
|
|
void (*set_pixel)(AVFrame *frame, int x, int y,
|
|
unsigned d0, unsigned d1, unsigned d2, unsigned d3);
|
|
void (*pick_pixel)(const AVFrame *frame, int x, int y,
|
|
int *s0, int *s1, int *s2, int *s3);
|
|
} FloodfillContext;
|
|
|
|
static int is_inside(int x, int y, int w, int h)
|
|
{
|
|
if (x >= 0 && x < w && y >= 0 && y < h)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static int is_same4(const AVFrame *frame, int x, int y,
|
|
unsigned s0, unsigned s1, unsigned s2, unsigned s3)
|
|
{
|
|
unsigned c0 = frame->data[0][y * frame->linesize[0] + x];
|
|
unsigned c1 = frame->data[1][y * frame->linesize[1] + x];
|
|
unsigned c2 = frame->data[2][y * frame->linesize[2] + x];
|
|
unsigned c3 = frame->data[3][y * frame->linesize[3] + x];
|
|
|
|
if (s0 == c0 && s1 == c1 && s2 == c2 && s3 == c3)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static int is_same4_16(const AVFrame *frame, int x, int y,
|
|
unsigned s0, unsigned s1, unsigned s2, unsigned s3)
|
|
{
|
|
unsigned c0 = AV_RN16(frame->data[0] + y * frame->linesize[0] + 2 * x);
|
|
unsigned c1 = AV_RN16(frame->data[1] + y * frame->linesize[1] + 2 * x);
|
|
unsigned c2 = AV_RN16(frame->data[2] + y * frame->linesize[2] + 2 * x);
|
|
unsigned c3 = AV_RN16(frame->data[3] + y * frame->linesize[3] + 2 * x);
|
|
|
|
if (s0 == c0 && s1 == c1 && s2 == c2 && s3 == c3)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static int is_same3(const AVFrame *frame, int x, int y,
|
|
unsigned s0, unsigned s1, unsigned s2, unsigned s3)
|
|
{
|
|
unsigned c0 = frame->data[0][y * frame->linesize[0] + x];
|
|
unsigned c1 = frame->data[1][y * frame->linesize[1] + x];
|
|
unsigned c2 = frame->data[2][y * frame->linesize[2] + x];
|
|
|
|
if (s0 == c0 && s1 == c1 && s2 == c2)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static int is_same3_16(const AVFrame *frame, int x, int y,
|
|
unsigned s0, unsigned s1, unsigned s2, unsigned s3)
|
|
{
|
|
unsigned c0 = AV_RN16(frame->data[0] + y * frame->linesize[0] + 2 * x);
|
|
unsigned c1 = AV_RN16(frame->data[1] + y * frame->linesize[1] + 2 * x);
|
|
unsigned c2 = AV_RN16(frame->data[2] + y * frame->linesize[2] + 2 * x);
|
|
|
|
if (s0 == c0 && s1 == c1 && s2 == c2)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static int is_same1(const AVFrame *frame, int x, int y,
|
|
unsigned s0, unsigned s1, unsigned s2, unsigned s3)
|
|
{
|
|
unsigned c0 = frame->data[0][y * frame->linesize[0] + x];
|
|
|
|
if (s0 == c0)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static int is_same1_16(const AVFrame *frame, int x, int y,
|
|
unsigned s0, unsigned s1, unsigned s2, unsigned s3)
|
|
{
|
|
unsigned c0 = AV_RN16(frame->data[0] + y * frame->linesize[0] + 2 * x);
|
|
|
|
if (s0 == c0)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static void set_pixel1(AVFrame *frame, int x, int y,
|
|
unsigned d0, unsigned d1, unsigned d2, unsigned d3)
|
|
{
|
|
frame->data[0][y * frame->linesize[0] + x] = d0;
|
|
}
|
|
|
|
static void set_pixel1_16(AVFrame *frame, int x, int y,
|
|
unsigned d0, unsigned d1, unsigned d2, unsigned d3)
|
|
{
|
|
AV_WN16(frame->data[0] + y * frame->linesize[0] + 2 * x, d0);
|
|
}
|
|
|
|
static void set_pixel3(AVFrame *frame, int x, int y,
|
|
unsigned d0, unsigned d1, unsigned d2, unsigned d3)
|
|
{
|
|
frame->data[0][y * frame->linesize[0] + x] = d0;
|
|
frame->data[1][y * frame->linesize[1] + x] = d1;
|
|
frame->data[2][y * frame->linesize[2] + x] = d2;
|
|
}
|
|
|
|
static void set_pixel3_16(AVFrame *frame, int x, int y,
|
|
unsigned d0, unsigned d1, unsigned d2, unsigned d3)
|
|
{
|
|
AV_WN16(frame->data[0] + y * frame->linesize[0] + 2 * x, d0);
|
|
AV_WN16(frame->data[1] + y * frame->linesize[1] + 2 * x, d1);
|
|
AV_WN16(frame->data[2] + y * frame->linesize[2] + 2 * x, d2);
|
|
}
|
|
|
|
static void set_pixel4(AVFrame *frame, int x, int y,
|
|
unsigned d0, unsigned d1, unsigned d2, unsigned d3)
|
|
{
|
|
frame->data[0][y * frame->linesize[0] + x] = d0;
|
|
frame->data[1][y * frame->linesize[1] + x] = d1;
|
|
frame->data[2][y * frame->linesize[2] + x] = d2;
|
|
frame->data[3][y * frame->linesize[3] + x] = d3;
|
|
}
|
|
|
|
static void set_pixel4_16(AVFrame *frame, int x, int y,
|
|
unsigned d0, unsigned d1, unsigned d2, unsigned d3)
|
|
{
|
|
AV_WN16(frame->data[0] + y * frame->linesize[0] + 2 * x, d0);
|
|
AV_WN16(frame->data[1] + y * frame->linesize[1] + 2 * x, d1);
|
|
AV_WN16(frame->data[2] + y * frame->linesize[2] + 2 * x, d2);
|
|
AV_WN16(frame->data[3] + y * frame->linesize[3] + 2 * x, d3);
|
|
}
|
|
|
|
static void pick_pixel1(const AVFrame *frame, int x, int y,
|
|
int *s0, int *s1, int *s2, int *s3)
|
|
{
|
|
if (*s0 < 0)
|
|
*s0 = frame->data[0][y * frame->linesize[0] + x];
|
|
}
|
|
|
|
static void pick_pixel1_16(const AVFrame *frame, int x, int y,
|
|
int *s0, int *s1, int *s2, int *s3)
|
|
{
|
|
if (*s0 < 0)
|
|
*s0 = AV_RN16(frame->data[0] + y * frame->linesize[0] + 2 * x);
|
|
}
|
|
|
|
static void pick_pixel3(const AVFrame *frame, int x, int y,
|
|
int *s0, int *s1, int *s2, int *s3)
|
|
{
|
|
if (*s0 < 0)
|
|
*s0 = frame->data[0][y * frame->linesize[0] + x];
|
|
if (*s1 < 0)
|
|
*s1 = frame->data[1][y * frame->linesize[1] + x];
|
|
if (*s2 < 0)
|
|
*s2 = frame->data[2][y * frame->linesize[2] + x];
|
|
}
|
|
|
|
static void pick_pixel3_16(const AVFrame *frame, int x, int y,
|
|
int *s0, int *s1, int *s2, int *s3)
|
|
{
|
|
if (*s0 < 0)
|
|
*s0 = AV_RN16(frame->data[0] + y * frame->linesize[0] + 2 * x);
|
|
if (*s1 < 0)
|
|
*s1 = AV_RN16(frame->data[1] + y * frame->linesize[1] + 2 * x);
|
|
if (*s2 < 0)
|
|
*s2 = AV_RN16(frame->data[2] + y * frame->linesize[2] + 2 * x);
|
|
}
|
|
|
|
static void pick_pixel4(const AVFrame *frame, int x, int y,
|
|
int *s0, int *s1, int *s2, int *s3)
|
|
{
|
|
if (*s0 < 0)
|
|
*s0 = frame->data[0][y * frame->linesize[0] + x];
|
|
if (*s1 < 0)
|
|
*s1 = frame->data[1][y * frame->linesize[1] + x];
|
|
if (*s2 < 0)
|
|
*s2 = frame->data[2][y * frame->linesize[2] + x];
|
|
if (*s3 < 0)
|
|
*s3 = frame->data[3][y * frame->linesize[3] + x];
|
|
}
|
|
|
|
static void pick_pixel4_16(const AVFrame *frame, int x, int y,
|
|
int *s0, int *s1, int *s2, int *s3)
|
|
{
|
|
if (*s0 < 0)
|
|
*s0 = AV_RN16(frame->data[0] + y * frame->linesize[0] + 2 * x);
|
|
if (*s1 < 0)
|
|
*s1 = AV_RN16(frame->data[1] + y * frame->linesize[1] + 2 * x);
|
|
if (*s2 < 0)
|
|
*s2 = AV_RN16(frame->data[2] + y * frame->linesize[2] + 2 * x);
|
|
if (*s3 < 0)
|
|
*s3 = AV_RN16(frame->data[3] + y * frame->linesize[3] + 2 * x);
|
|
}
|
|
|
|
static int config_input(AVFilterLink *inlink)
|
|
{
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
|
|
AVFilterContext *ctx = inlink->dst;
|
|
FloodfillContext *s = ctx->priv;
|
|
int depth;
|
|
|
|
s->nb_planes = av_pix_fmt_count_planes(inlink->format);
|
|
depth = desc->comp[0].depth;
|
|
if (depth == 8) {
|
|
switch (s->nb_planes) {
|
|
case 1: s->set_pixel = set_pixel1;
|
|
s->is_same = is_same1;
|
|
s->pick_pixel = pick_pixel1; break;
|
|
case 3: s->set_pixel = set_pixel3;
|
|
s->is_same = is_same3;
|
|
s->pick_pixel = pick_pixel3; break;
|
|
case 4: s->set_pixel = set_pixel4;
|
|
s->is_same = is_same4;
|
|
s->pick_pixel = pick_pixel4; break;
|
|
}
|
|
} else {
|
|
switch (s->nb_planes) {
|
|
case 1: s->set_pixel = set_pixel1_16;
|
|
s->is_same = is_same1_16;
|
|
s->pick_pixel = pick_pixel1_16; break;
|
|
case 3: s->set_pixel = set_pixel3_16;
|
|
s->is_same = is_same3_16;
|
|
s->pick_pixel = pick_pixel3_16; break;
|
|
case 4: s->set_pixel = set_pixel4_16;
|
|
s->is_same = is_same4_16;
|
|
s->pick_pixel = pick_pixel4_16; break;
|
|
}
|
|
}
|
|
|
|
s->front = s->back = 0;
|
|
s->points = av_calloc(inlink->w * inlink->h, 4 * sizeof(Points));
|
|
if (!s->points)
|
|
return AVERROR(ENOMEM);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int filter_frame(AVFilterLink *link, AVFrame *frame)
|
|
{
|
|
AVFilterContext *ctx = link->dst;
|
|
FloodfillContext *s = ctx->priv;
|
|
const unsigned d0 = s->d[0];
|
|
const unsigned d1 = s->d[1];
|
|
const unsigned d2 = s->d[2];
|
|
const unsigned d3 = s->d[3];
|
|
int s0 = s->s[0];
|
|
int s1 = s->s[1];
|
|
int s2 = s->s[2];
|
|
int s3 = s->s[3];
|
|
const int w = frame->width;
|
|
const int h = frame->height;
|
|
int i, ret;
|
|
|
|
if (is_inside(s->x, s->y, w, h)) {
|
|
s->pick_pixel(frame, s->x, s->y, &s0, &s1, &s2, &s3);
|
|
|
|
s->S[0] = s0;
|
|
s->S[1] = s1;
|
|
s->S[2] = s2;
|
|
s->S[3] = s3;
|
|
for (i = 0; i < s->nb_planes; i++) {
|
|
if (s->S[i] != s->d[i])
|
|
break;
|
|
}
|
|
|
|
if (i == s->nb_planes)
|
|
goto end;
|
|
|
|
if (s->is_same(frame, s->x, s->y, s0, s1, s2, s3)) {
|
|
s->points[s->front].x = s->x;
|
|
s->points[s->front].y = s->y;
|
|
s->front++;
|
|
}
|
|
|
|
if (ret = ff_inlink_make_frame_writable(link, &frame)) {
|
|
av_frame_free(&frame);
|
|
return ret;
|
|
}
|
|
|
|
while (s->front > s->back) {
|
|
int x, y;
|
|
|
|
s->front--;
|
|
x = s->points[s->front].x;
|
|
y = s->points[s->front].y;
|
|
|
|
if (s->is_same(frame, x, y, s0, s1, s2, s3)) {
|
|
s->set_pixel(frame, x, y, d0, d1, d2, d3);
|
|
|
|
if (is_inside(x + 1, y, w, h)) {
|
|
s->points[s->front] .x = x + 1;
|
|
s->points[s->front++].y = y;
|
|
}
|
|
|
|
if (is_inside(x - 1, y, w, h)) {
|
|
s->points[s->front] .x = x - 1;
|
|
s->points[s->front++].y = y;
|
|
}
|
|
|
|
if (is_inside(x, y + 1, w, h)) {
|
|
s->points[s->front] .x = x;
|
|
s->points[s->front++].y = y + 1;
|
|
}
|
|
|
|
if (is_inside(x, y - 1, w, h)) {
|
|
s->points[s->front] .x = x;
|
|
s->points[s->front++].y = y - 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
end:
|
|
return ff_filter_frame(ctx->outputs[0], frame);
|
|
}
|
|
|
|
static const enum AVPixelFormat pixel_fmts[] = {
|
|
AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
|
|
AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVA444P,
|
|
AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRAP10,
|
|
AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
|
|
AV_PIX_FMT_GBRAP16, AV_PIX_FMT_GBRAP,
|
|
AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUVA444P10,
|
|
AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV444P16, AV_PIX_FMT_YUVA444P16,
|
|
AV_PIX_FMT_NONE
|
|
};
|
|
|
|
static av_cold void uninit(AVFilterContext *ctx)
|
|
{
|
|
FloodfillContext *s = ctx->priv;
|
|
|
|
av_freep(&s->points);
|
|
}
|
|
|
|
static const AVFilterPad floodfill_inputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.filter_frame = filter_frame,
|
|
.config_props = config_input,
|
|
},
|
|
};
|
|
|
|
#define OFFSET(x) offsetof(FloodfillContext, x)
|
|
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
|
|
|
|
static const AVOption floodfill_options[] = {
|
|
{ "x", "set pixel x coordinate", OFFSET(x), AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
|
|
{ "y", "set pixel y coordinate", OFFSET(y), AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
|
|
{ "s0", "set source #0 component value", OFFSET(s[0]), AV_OPT_TYPE_INT, {.i64=0},-1, UINT16_MAX, FLAGS },
|
|
{ "s1", "set source #1 component value", OFFSET(s[1]), AV_OPT_TYPE_INT, {.i64=0},-1, UINT16_MAX, FLAGS },
|
|
{ "s2", "set source #2 component value", OFFSET(s[2]), AV_OPT_TYPE_INT, {.i64=0},-1, UINT16_MAX, FLAGS },
|
|
{ "s3", "set source #3 component value", OFFSET(s[3]), AV_OPT_TYPE_INT, {.i64=0},-1, UINT16_MAX, FLAGS },
|
|
{ "d0", "set destination #0 component value", OFFSET(d[0]), AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
|
|
{ "d1", "set destination #1 component value", OFFSET(d[1]), AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
|
|
{ "d2", "set destination #2 component value", OFFSET(d[2]), AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
|
|
{ "d3", "set destination #3 component value", OFFSET(d[3]), AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
|
|
{ NULL }
|
|
};
|
|
|
|
AVFILTER_DEFINE_CLASS(floodfill);
|
|
|
|
const AVFilter ff_vf_floodfill = {
|
|
.name = "floodfill",
|
|
.description = NULL_IF_CONFIG_SMALL("Fill area with same color with another color."),
|
|
.priv_size = sizeof(FloodfillContext),
|
|
.priv_class = &floodfill_class,
|
|
.uninit = uninit,
|
|
FILTER_INPUTS(floodfill_inputs),
|
|
FILTER_OUTPUTS(ff_video_default_filterpad),
|
|
FILTER_PIXFMTS_ARRAY(pixel_fmts),
|
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
|
|
};
|