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/*
* 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/avassert.h"
#include "libavutil/colorspace.h"
#include "libavutil/common.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "drawutils.h"
#include "internal.h"
#include "video.h"
enum { Y, U, V, A };
enum { R, G, B };
enum FillMode { FM_SMEAR, FM_MIRROR, FM_FIXED, FM_REFLECT, FM_WRAP, FM_FADE, FM_MARGINS, FM_NB_MODES };
typedef struct Borders {
int left, right, top, bottom;
} Borders;
typedef struct FillBordersContext {
const AVClass *class;
int left, right, top, bottom;
int mode;
int nb_planes;
int depth;
Borders borders[4];
int planewidth[4];
int planeheight[4];
uint8_t fill[4];
uint8_t yuv_color[4];
uint8_t rgba_color[4];
void (*fillborders)(struct FillBordersContext *s, AVFrame *frame);
} FillBordersContext;
static const enum AVPixelFormat pix_fmts[] = {
AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P,
AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12,
AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
AV_PIX_FMT_NONE
};
static void smear_borders8(FillBordersContext *s, AVFrame *frame)
{
int p, y;
for (p = 0; p < s->nb_planes; p++) {
uint8_t *ptr = frame->data[p];
ptrdiff_t linesize = frame->linesize[p];
for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
memset(ptr + y * linesize,
*(ptr + y * linesize + s->borders[p].left),
s->borders[p].left);
memset(ptr + y * linesize + s->planewidth[p] - s->borders[p].right,
*(ptr + y * linesize + s->planewidth[p] - s->borders[p].right - 1),
s->borders[p].right);
}
for (y = 0; y < s->borders[p].top; y++) {
memcpy(ptr + y * linesize,
ptr + s->borders[p].top * linesize, s->planewidth[p]);
}
for (y = s->planeheight[p] - s->borders[p].bottom; y < s->planeheight[p]; y++) {
memcpy(ptr + y * linesize,
ptr + (s->planeheight[p] - s->borders[p].bottom - 1) * linesize,
s->planewidth[p]);
}
}
}
static void smear_borders16(FillBordersContext *s, AVFrame *frame)
{
int p, y, x;
for (p = 0; p < s->nb_planes; p++) {
uint16_t *ptr = (uint16_t *)frame->data[p];
ptrdiff_t linesize = frame->linesize[p] / 2;
for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
for (x = 0; x < s->borders[p].left; x++) {
ptr[y * linesize + x] = *(ptr + y * linesize + s->borders[p].left);
}
for (x = 0; x < s->borders[p].right; x++) {
ptr[y * linesize + s->planewidth[p] - s->borders[p].right + x] =
*(ptr + y * linesize + s->planewidth[p] - s->borders[p].right - 1);
}
}
for (y = 0; y < s->borders[p].top; y++) {
memcpy(ptr + y * linesize,
ptr + s->borders[p].top * linesize, s->planewidth[p] * 2);
}
for (y = s->planeheight[p] - s->borders[p].bottom; y < s->planeheight[p]; y++) {
memcpy(ptr + y * linesize,
ptr + (s->planeheight[p] - s->borders[p].bottom - 1) * linesize,
s->planewidth[p] * 2);
}
}
}
static void mirror_borders8(FillBordersContext *s, AVFrame *frame)
{
int p, y, x;
for (p = 0; p < s->nb_planes; p++) {
uint8_t *ptr = frame->data[p];
ptrdiff_t linesize = frame->linesize[p];
for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
for (x = 0; x < s->borders[p].left; x++) {
ptr[y * linesize + x] = ptr[y * linesize + s->borders[p].left * 2 - 1 - x];
}
for (x = 0; x < s->borders[p].right; x++) {
ptr[y * linesize + s->planewidth[p] - s->borders[p].right + x] =
ptr[y * linesize + s->planewidth[p] - s->borders[p].right - 1 - x];
}
}
for (y = 0; y < s->borders[p].top; y++) {
memcpy(ptr + y * linesize,
ptr + (s->borders[p].top * 2 - 1 - y) * linesize,
s->planewidth[p]);
}
for (y = 0; y < s->borders[p].bottom; y++) {
memcpy(ptr + (s->planeheight[p] - s->borders[p].bottom + y) * linesize,
ptr + (s->planeheight[p] - s->borders[p].bottom - 1 - y) * linesize,
s->planewidth[p]);
}
}
}
static void mirror_borders16(FillBordersContext *s, AVFrame *frame)
{
int p, y, x;
for (p = 0; p < s->nb_planes; p++) {
uint16_t *ptr = (uint16_t *)frame->data[p];
ptrdiff_t linesize = frame->linesize[p] / 2;
for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
for (x = 0; x < s->borders[p].left; x++) {
ptr[y * linesize + x] = ptr[y * linesize + s->borders[p].left * 2 - 1 - x];
}
for (x = 0; x < s->borders[p].right; x++) {
ptr[y * linesize + s->planewidth[p] - s->borders[p].right + x] =
ptr[y * linesize + s->planewidth[p] - s->borders[p].right - 1 - x];
}
}
for (y = 0; y < s->borders[p].top; y++) {
memcpy(ptr + y * linesize,
ptr + (s->borders[p].top * 2 - 1 - y) * linesize,
s->planewidth[p] * 2);
}
for (y = 0; y < s->borders[p].bottom; y++) {
memcpy(ptr + (s->planeheight[p] - s->borders[p].bottom + y) * linesize,
ptr + (s->planeheight[p] - s->borders[p].bottom - 1 - y) * linesize,
s->planewidth[p] * 2);
}
}
}
static void fixed_borders8(FillBordersContext *s, AVFrame *frame)
{
int p, y;
for (p = 0; p < s->nb_planes; p++) {
uint8_t *ptr = frame->data[p];
uint8_t fill = s->fill[p];
ptrdiff_t linesize = frame->linesize[p];
for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
memset(ptr + y * linesize, fill, s->borders[p].left);
memset(ptr + y * linesize + s->planewidth[p] - s->borders[p].right, fill,
s->borders[p].right);
}
for (y = 0; y < s->borders[p].top; y++) {
memset(ptr + y * linesize, fill, s->planewidth[p]);
}
for (y = s->planeheight[p] - s->borders[p].bottom; y < s->planeheight[p]; y++) {
memset(ptr + y * linesize, fill, s->planewidth[p]);
}
}
}
static void fixed_borders16(FillBordersContext *s, AVFrame *frame)
{
int p, y, x;
for (p = 0; p < s->nb_planes; p++) {
uint16_t *ptr = (uint16_t *)frame->data[p];
uint16_t fill = s->fill[p] << (s->depth - 8);
ptrdiff_t linesize = frame->linesize[p] / 2;
for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
for (x = 0; x < s->borders[p].left; x++) {
ptr[y * linesize + x] = fill;
}
for (x = 0; x < s->borders[p].right; x++) {
ptr[y * linesize + s->planewidth[p] - s->borders[p].right + x] = fill;
}
}
for (y = 0; y < s->borders[p].top; y++) {
for (x = 0; x < s->planewidth[p]; x++) {
ptr[y * linesize + x] = fill;
}
}
for (y = s->planeheight[p] - s->borders[p].bottom; y < s->planeheight[p]; y++) {
for (x = 0; x < s->planewidth[p]; x++) {
ptr[y * linesize + x] = fill;
}
}
}
}
static void reflect_borders8(FillBordersContext *s, AVFrame *frame)
{
int p, y, x;
for (p = 0; p < s->nb_planes; p++) {
uint8_t *ptr = frame->data[p];
ptrdiff_t linesize = frame->linesize[p];
for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
for (x = 0; x < s->borders[p].left; x++) {
ptr[y * linesize + x] = ptr[y * linesize + s->borders[p].left * 2 - x];
}
for (x = 0; x < s->borders[p].right; x++) {
ptr[y * linesize + s->planewidth[p] - s->borders[p].right + x] =
ptr[y * linesize + s->planewidth[p] - s->borders[p].right - 2 - x];
}
}
for (y = 0; y < s->borders[p].top; y++) {
memcpy(ptr + y * linesize,
ptr + (s->borders[p].top * 2 - y) * linesize,
s->planewidth[p]);
}
for (y = 0; y < s->borders[p].bottom; y++) {
memcpy(ptr + (s->planeheight[p] - s->borders[p].bottom + y) * linesize,
ptr + (s->planeheight[p] - s->borders[p].bottom - 2 - y) * linesize,
s->planewidth[p]);
}
}
}
static void reflect_borders16(FillBordersContext *s, AVFrame *frame)
{
int p, y, x;
for (p = 0; p < s->nb_planes; p++) {
uint16_t *ptr = (uint16_t *)frame->data[p];
ptrdiff_t linesize = frame->linesize[p] / 2;
for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
for (x = 0; x < s->borders[p].left; x++) {
ptr[y * linesize + x] = ptr[y * linesize + s->borders[p].left * 2 - x];
}
for (x = 0; x < s->borders[p].right; x++) {
ptr[y * linesize + s->planewidth[p] - s->borders[p].right + x] =
ptr[y * linesize + s->planewidth[p] - s->borders[p].right - 2 - x];
}
}
for (y = 0; y < s->borders[p].top; y++) {
memcpy(ptr + y * linesize,
ptr + (s->borders[p].top * 2 - y) * linesize,
s->planewidth[p] * 2);
}
for (y = 0; y < s->borders[p].bottom; y++) {
memcpy(ptr + (s->planeheight[p] - s->borders[p].bottom + y) * linesize,
ptr + (s->planeheight[p] - s->borders[p].bottom - 2 - y) * linesize,
s->planewidth[p] * 2);
}
}
}
static void wrap_borders8(FillBordersContext *s, AVFrame *frame)
{
int p, y, x;
for (p = 0; p < s->nb_planes; p++) {
uint8_t *ptr = frame->data[p];
ptrdiff_t linesize = frame->linesize[p];
for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
for (x = 0; x < s->borders[p].left; x++) {
ptr[y * linesize + x] = ptr[y * linesize + s->planewidth[p] - s->borders[p].right - s->borders[p].left + x];
}
for (x = 0; x < s->borders[p].right; x++) {
ptr[y * linesize + s->planewidth[p] - s->borders[p].right + x] =
ptr[y * linesize + s->borders[p].left + x];
}
}
for (y = 0; y < s->borders[p].top; y++) {
memcpy(ptr + y * linesize,
ptr + (s->planeheight[p] - s->borders[p].bottom - s->borders[p].top + y) * linesize,
s->planewidth[p]);
}
for (y = 0; y < s->borders[p].bottom; y++) {
memcpy(ptr + (s->planeheight[p] - s->borders[p].bottom + y) * linesize,
ptr + (s->borders[p].top + y) * linesize,
s->planewidth[p]);
}
}
}
static void wrap_borders16(FillBordersContext *s, AVFrame *frame)
{
int p, y, x;
for (p = 0; p < s->nb_planes; p++) {
uint16_t *ptr = (uint16_t *)frame->data[p];
ptrdiff_t linesize = frame->linesize[p] / 2;
for (y = s->borders[p].top; y < s->planeheight[p] - s->borders[p].bottom; y++) {
for (x = 0; x < s->borders[p].left; x++) {
ptr[y * linesize + x] = ptr[y * linesize + s->planewidth[p] - s->borders[p].right - s->borders[p].left + x];
}
for (x = 0; x < s->borders[p].right; x++) {
ptr[y * linesize + s->planewidth[p] - s->borders[p].right + x] =
ptr[y * linesize + s->borders[p].left + x];
}
}
for (y = 0; y < s->borders[p].top; y++) {
memcpy(ptr + y * linesize,
ptr + (s->planeheight[p] - s->borders[p].bottom - s->borders[p].top + y) * linesize,
s->planewidth[p] * 2);
}
for (y = 0; y < s->borders[p].bottom; y++) {
memcpy(ptr + (s->planeheight[p] - s->borders[p].bottom + y) * linesize,
ptr + (s->borders[p].top + y) * linesize,
s->planewidth[p] * 2);
}
}
}
static int lerp8(int fill, int src, int pos, int size)
{
return av_clip_uint8(((fill * 256 * pos / size) + (src * 256 * (size - pos) / size)) >> 8);
}
static int lerp16(int fill, int src, int pos, int size, int depth)
{
return av_clip_uintp2_c(((fill * (1LL << depth) * pos / size) + (src * (1LL << depth) * (size - pos) / size)) >> depth, depth);
}
static void fade_borders8(FillBordersContext *s, AVFrame *frame)
{
int p, y, x;
for (p = 0; p < s->nb_planes; p++) {
uint8_t *ptr = frame->data[p];
const uint8_t fill = s->fill[p];
const ptrdiff_t linesize = frame->linesize[p];
const int start_left = s->borders[p].left;
const int start_right = s->planewidth[p] - s->borders[p].right;
const int start_top = s->borders[p].top;
const int start_bottom = s->planeheight[p] - s->borders[p].bottom;
for (y = 0; y < start_top; y++) {
for (x = 0; x < s->planewidth[p]; x++) {
int src = ptr[y * linesize + x];
ptr[y * linesize + x] = lerp8(fill, src, start_top - y, start_top);
}
}
for (y = start_bottom; y < s->planeheight[p]; y++) {
for (x = 0; x < s->planewidth[p]; x++) {
int src = ptr[y * linesize + x];
ptr[y * linesize + x] = lerp8(fill, src, y - start_bottom, s->borders[p].bottom);
}
}
for (y = 0; y < s->planeheight[p]; y++) {
for (x = 0; x < start_left; x++) {
int src = ptr[y * linesize + x];
ptr[y * linesize + x] = lerp8(fill, src, start_left - x, start_left);
}
for (x = 0; x < s->borders[p].right; x++) {
int src = ptr[y * linesize + start_right + x];
ptr[y * linesize + start_right + x] = lerp8(fill, src, x, s->borders[p].right);
}
}
}
}
static void fade_borders16(FillBordersContext *s, AVFrame *frame)
{
const int depth = s->depth;
int p, y, x;
for (p = 0; p < s->nb_planes; p++) {
uint16_t *ptr = (uint16_t *)frame->data[p];
const uint16_t fill = s->fill[p] << (depth - 8);
const ptrdiff_t linesize = frame->linesize[p] / 2;
const int start_left = s->borders[p].left;
const int start_right = s->planewidth[p] - s->borders[p].right;
const int start_top = s->borders[p].top;
const int start_bottom = s->planeheight[p] - s->borders[p].bottom;
for (y = 0; y < start_top; y++) {
for (x = 0; x < s->planewidth[p]; x++) {
int src = ptr[y * linesize + x];
ptr[y * linesize + x] = lerp16(fill, src, start_top - y, start_top, depth);
}
}
for (y = start_bottom; y < s->planeheight[p]; y++) {
for (x = 0; x < s->planewidth[p]; x++) {
int src = ptr[y * linesize + x];
ptr[y * linesize + x] = lerp16(fill, src, y - start_bottom, s->borders[p].bottom, depth);
}
}
for (y = 0; y < s->planeheight[p]; y++) {
for (x = 0; x < start_left; x++) {
int src = ptr[y * linesize + x];
ptr[y * linesize + x] = lerp16(fill, src, start_left - x, start_left, depth);
}
for (x = 0; x < s->borders[p].right; x++) {
int src = ptr[y * linesize + start_right + x];
ptr[y * linesize + start_right + x] = lerp16(fill, src, x, s->borders[p].right, depth);
}
}
}
}
static void margins_borders8(FillBordersContext *s, AVFrame *frame)
{
for (int p = 0; p < s->nb_planes; p++) {
uint8_t *ptr = (uint8_t *)frame->data[p];
const ptrdiff_t linesize = frame->linesize[p];
const int left = s->borders[p].left;
const int right = s->borders[p].right;
const int top = s->borders[p].top;
const int bottom = s->borders[p].bottom;
const int width = s->planewidth[p];
const int height = s->planeheight[p];
for (int y = top; y < height - bottom; y++) {
memset(ptr + linesize * y, ptr[linesize * y + left], left);
memset(ptr + linesize * y + width - right, (ptr + linesize * y + width - right)[-1], right);
}
for (int y = top - 1; y >= 0; y--) {
ptr[linesize * y] = ptr[linesize * (y + 1)];
memcpy(ptr + linesize * y + width - 8, ptr + linesize * (y + 1) + width - 8, 8);
for (int x = 1; x < width - 8; x++) {
int prev = ptr[linesize * (y + 1) + x - 1];
int cur = ptr[linesize * (y + 1) + x];
int next = ptr[linesize * (y + 1) + x + 1];
ptr[linesize * y + x] = (3 * prev + 2 * cur + 3 * next + 4) >> 3;
}
}
for (int y = height - bottom; y < height; y++) {
ptr[linesize * y] = ptr[linesize * (y - 1)];
memcpy(ptr + linesize * y + width - 8, ptr + linesize * (y - 1) + width - 8, 8);
for (int x = 1; x < width - 8; x++) {
int prev = ptr[linesize * (y - 1) + x - 1];
int cur = ptr[linesize * (y - 1) + x];
int next = ptr[linesize * (y - 1) + x + 1];
ptr[linesize * y + x] = (3 * prev + 2 * cur + 3 * next + 4) >> 3;
}
}
}
}
static void margins_borders16(FillBordersContext *s, AVFrame *frame)
{
for (int p = 0; p < s->nb_planes; p++) {
uint16_t *ptr = (uint16_t *)frame->data[p];
const ptrdiff_t linesize = frame->linesize[p] / 2;
const int left = s->borders[p].left;
const int right = s->borders[p].right;
const int top = s->borders[p].top;
const int bottom = s->borders[p].bottom;
const int width = s->planewidth[p];
const int height = s->planeheight[p];
for (int y = top; y < height - bottom; y++) {
for (int x = 0; x < left; x++)
ptr[linesize * y + x] = ptr[linesize * y + left];
for (int x = 0; x < right; x++)
ptr[linesize * y + width - right + x] = ptr[linesize * y + width - right - 1];
}
for (int y = top - 1; y >= 0; y--) {
ptr[linesize * y] = ptr[linesize * (y + 1)];
memcpy(ptr + linesize * y + width - 8, ptr + linesize * (y + 1) + width - 8, 16);
for (int x = 1; x < width - 8; x++) {
int prev = ptr[linesize * (y + 1) + x - 1];
int cur = ptr[linesize * (y + 1) + x];
int next = ptr[linesize * (y + 1) + x + 1];
ptr[linesize * y + x] = (3 * prev + 2 * cur + 3 * next + 4) >> 3;
}
}
for (int y = height - bottom; y < height; y++) {
ptr[linesize * y] = ptr[linesize * (y - 1)];
memcpy(ptr + linesize * y + width - 8, ptr + linesize * (y - 1) + width - 8, 16);
for (int x = 1; x < width - 8; x++) {
int prev = ptr[linesize * (y - 1) + x - 1];
int cur = ptr[linesize * (y - 1) + x];
int next = ptr[linesize * (y - 1) + x + 1];
ptr[linesize * y + x] = (3 * prev + 2 * cur + 3 * next + 4) >> 3;
}
}
}
}
static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
{
FillBordersContext *s = inlink->dst->priv;
s->fillborders(s, frame);
return ff_filter_frame(inlink->dst->outputs[0], frame);
}
static int config_input(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
FillBordersContext *s = ctx->priv;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
s->nb_planes = desc->nb_components;
s->depth = desc->comp[0].depth;
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;
if (inlink->w < s->left + s->right ||
inlink->w <= s->left ||
inlink->w <= s->right ||
inlink->h < s->top + s->bottom ||
inlink->h <= s->top ||
inlink->h <= s->bottom ||
inlink->w < s->left * 2 ||
inlink->w < s->right * 2 ||
inlink->h < s->top * 2 ||
inlink->h < s->bottom * 2) {
av_log(ctx, AV_LOG_ERROR, "Borders are bigger than input frame size.\n");
return AVERROR(EINVAL);
}
s->borders[0].left = s->borders[3].left = s->left;
s->borders[0].right = s->borders[3].right = s->right;
s->borders[0].top = s->borders[3].top = s->top;
s->borders[0].bottom = s->borders[3].bottom = s->bottom;
s->borders[1].left = s->left >> desc->log2_chroma_w;
s->borders[1].right = s->right >> desc->log2_chroma_w;
s->borders[1].top = s->top >> desc->log2_chroma_h;
s->borders[1].bottom = s->bottom >> desc->log2_chroma_h;
s->borders[2].left = s->left >> desc->log2_chroma_w;
s->borders[2].right = s->right >> desc->log2_chroma_w;
s->borders[2].top = s->top >> desc->log2_chroma_h;
s->borders[2].bottom = s->bottom >> desc->log2_chroma_h;
switch (s->mode) {
case FM_SMEAR: s->fillborders = s->depth <= 8 ? smear_borders8 : smear_borders16; break;
case FM_MIRROR: s->fillborders = s->depth <= 8 ? mirror_borders8 : mirror_borders16; break;
case FM_FIXED: s->fillborders = s->depth <= 8 ? fixed_borders8 : fixed_borders16; break;
case FM_REFLECT:s->fillborders = s->depth <= 8 ? reflect_borders8: reflect_borders16;break;
case FM_WRAP: s->fillborders = s->depth <= 8 ? wrap_borders8 : wrap_borders16; break;
case FM_FADE: s->fillborders = s->depth <= 8 ? fade_borders8 : fade_borders16; break;
case FM_MARGINS:s->fillborders = s->depth <= 8 ? margins_borders8: margins_borders16;break;
default: av_assert0(0);
}
s->yuv_color[Y] = RGB_TO_Y_CCIR(s->rgba_color[R], s->rgba_color[G], s->rgba_color[B]);
s->yuv_color[U] = RGB_TO_U_CCIR(s->rgba_color[R], s->rgba_color[G], s->rgba_color[B], 0);
s->yuv_color[V] = RGB_TO_V_CCIR(s->rgba_color[R], s->rgba_color[G], s->rgba_color[B], 0);
s->yuv_color[A] = s->rgba_color[A];
if (desc->flags & AV_PIX_FMT_FLAG_RGB) {
uint8_t rgba_map[4];
int i;
ff_fill_rgba_map(rgba_map, inlink->format);
for (i = 0; i < 4; i++)
s->fill[rgba_map[i]] = s->rgba_color[i];
} else {
memcpy(s->fill, s->yuv_color, sizeof(s->yuv_color));
}
return 0;
}
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
char *res, int res_len, int flags)
{
int ret;
ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
if (ret < 0)
return ret;
return config_input(ctx->inputs[0]);
}
#define OFFSET(x) offsetof(FillBordersContext, x)
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
static const AVOption fillborders_options[] = {
{ "left", "set the left fill border", OFFSET(left), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
{ "right", "set the right fill border", OFFSET(right), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
{ "top", "set the top fill border", OFFSET(top), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
{ "bottom", "set the bottom fill border", OFFSET(bottom), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
{ "mode", "set the fill borders mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=FM_SMEAR}, 0, FM_NB_MODES-1, FLAGS, .unit = "mode" },
{ "smear", NULL, 0, AV_OPT_TYPE_CONST, {.i64=FM_SMEAR}, 0, 0, FLAGS, .unit = "mode" },
{ "mirror", NULL, 0, AV_OPT_TYPE_CONST, {.i64=FM_MIRROR}, 0, 0, FLAGS, .unit = "mode" },
{ "fixed", NULL, 0, AV_OPT_TYPE_CONST, {.i64=FM_FIXED}, 0, 0, FLAGS, .unit = "mode" },
{ "reflect",NULL, 0, AV_OPT_TYPE_CONST, {.i64=FM_REFLECT},0, 0, FLAGS, .unit = "mode" },
{ "wrap", NULL, 0, AV_OPT_TYPE_CONST, {.i64=FM_WRAP}, 0, 0, FLAGS, .unit = "mode" },
{ "fade", NULL, 0, AV_OPT_TYPE_CONST, {.i64=FM_FADE}, 0, 0, FLAGS, .unit = "mode" },
{ "margins",NULL, 0, AV_OPT_TYPE_CONST, {.i64=FM_MARGINS},0, 0, FLAGS, .unit = "mode" },
{ "color", "set the color for the fixed/fade mode", OFFSET(rgba_color), AV_OPT_TYPE_COLOR, {.str = "black"}, .flags = FLAGS },
{ NULL }
};
AVFILTER_DEFINE_CLASS(fillborders);
static const AVFilterPad fillborders_inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.flags = AVFILTERPAD_FLAG_NEEDS_WRITABLE,
.config_props = config_input,
.filter_frame = filter_frame,
},
};
const AVFilter ff_vf_fillborders = {
.name = "fillborders",
.description = NULL_IF_CONFIG_SMALL("Fill borders of the input video."),
.priv_size = sizeof(FillBordersContext),
.priv_class = &fillborders_class,
FILTER_INPUTS(fillborders_inputs),
FILTER_OUTPUTS(ff_video_default_filterpad),
FILTER_PIXFMTS_ARRAY(pix_fmts),
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
.process_command = process_command,
};
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