mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-02 03:06:28 +02:00
790f793844
There are lots of files that don't need it: The number of object files that actually need it went down from 2011 to 884 here. Keep it for external users in order to not cause breakages. Also improve the other headers a bit while just at it. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
314 lines
10 KiB
C
314 lines
10 KiB
C
/*
|
|
* Copyright (c) 2020 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/imgutils.h"
|
|
#include "libavutil/mem.h"
|
|
#include "libavutil/opt.h"
|
|
#include "libavutil/pixdesc.h"
|
|
#include "avfilter.h"
|
|
#include "internal.h"
|
|
#include "video.h"
|
|
|
|
typedef struct DBlurContext {
|
|
const AVClass *class;
|
|
|
|
float angle;
|
|
float radius;
|
|
int planes;
|
|
|
|
float b0, b1, q, c, R3;
|
|
|
|
int depth;
|
|
int planewidth[4];
|
|
int planeheight[4];
|
|
float *buffer;
|
|
int nb_planes;
|
|
} DBlurContext;
|
|
|
|
#define OFFSET(x) offsetof(DBlurContext, x)
|
|
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
|
|
|
|
static const AVOption dblur_options[] = {
|
|
{ "angle", "set angle", OFFSET(angle), AV_OPT_TYPE_FLOAT, {.dbl=45}, 0.0, 360, FLAGS },
|
|
{ "radius", "set radius", OFFSET(radius), AV_OPT_TYPE_FLOAT, {.dbl=5}, 0, 8192, FLAGS },
|
|
{ "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
|
|
{ NULL }
|
|
};
|
|
|
|
AVFILTER_DEFINE_CLASS(dblur);
|
|
|
|
#define f(n, m) (dst[(n) * width + (m)])
|
|
|
|
static int filter_horizontally(AVFilterContext *ctx, int width, int height)
|
|
{
|
|
DBlurContext *s = ctx->priv;
|
|
const float b0 = s->b0;
|
|
const float b1 = s->b1;
|
|
const float q = s->q;
|
|
const float c = s->c;
|
|
float *dst = s->buffer;
|
|
float g;
|
|
|
|
if (s->R3 > 0) {
|
|
for (int y = 1; y < height; y++) {
|
|
g = q * f(y, 0) + c * f(y, 0);
|
|
for (int x = 0; x < width; x++) {
|
|
f(y, x) = b0 * f(y, x) + b1 * f(y - 1, x) + g;
|
|
g = q * f(y, x) + c * f(y - 1, x);
|
|
}
|
|
}
|
|
|
|
for (int y = height - 2; y >= 0; y--) {
|
|
g = q * f(y, width - 1) + c * f(y, width - 1);
|
|
for (int x = width - 1; x >= 0; x--) {
|
|
f(y, x) = b0 * f(y, x) + b1 * f(y + 1, x) + g;
|
|
g = q * f(y, x) + c * f(y + 1, x);
|
|
}
|
|
}
|
|
} else {
|
|
for (int y = 1; y < height; y++) {
|
|
g = q * f(y, width - 1) + c * f(y, width - 1);
|
|
for (int x = width - 1; x >= 0; x--) {
|
|
f(y, x) = b0 * f(y, x) + b1 * f(y - 1, x) + g;
|
|
g = q * f(y, x) + c * f(y - 1, x);
|
|
}
|
|
}
|
|
|
|
for (int y = height - 2; y >= 0; y--) {
|
|
g = q * f(y, 0) + c * f(y, 0);
|
|
for (int x = 0; x < width; x++) {
|
|
f(y, x) = b0 * f(y, x) + b1 * f(y + 1, x) + g;
|
|
g = q * f(y, x) + c * f(y + 1, x);
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void diriir2d(AVFilterContext *ctx, int plane)
|
|
{
|
|
DBlurContext *s = ctx->priv;
|
|
const int width = s->planewidth[plane];
|
|
const int height = s->planeheight[plane];
|
|
|
|
filter_horizontally(ctx, width, height);
|
|
}
|
|
|
|
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_GRAYF32, AV_PIX_FMT_GBRPF32, AV_PIX_FMT_GBRAPF32,
|
|
AV_PIX_FMT_NONE
|
|
};
|
|
|
|
static av_cold void uninit(AVFilterContext *ctx)
|
|
{
|
|
DBlurContext *s = ctx->priv;
|
|
|
|
av_freep(&s->buffer);
|
|
}
|
|
|
|
static int config_input(AVFilterLink *inlink)
|
|
{
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
|
|
DBlurContext *s = inlink->dst->priv;
|
|
|
|
uninit(inlink->dst);
|
|
|
|
s->depth = desc->comp[0].depth;
|
|
s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
|
|
s->planewidth[0] = s->planewidth[3] = inlink->w;
|
|
s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
|
|
s->planeheight[0] = s->planeheight[3] = inlink->h;
|
|
|
|
s->nb_planes = av_pix_fmt_count_planes(inlink->format);
|
|
|
|
s->buffer = av_malloc_array(FFALIGN(inlink->w, 16), FFALIGN(inlink->h, 16) * sizeof(*s->buffer));
|
|
if (!s->buffer)
|
|
return AVERROR(ENOMEM);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void set_params(DBlurContext *s, float angle, float r)
|
|
{
|
|
float mu, nu, R1, R2, w1, w2;
|
|
float a0, a1, a2, a3;
|
|
|
|
angle = angle * M_PI / 180.f;
|
|
|
|
mu = cosf(angle);
|
|
nu = sinf(angle);
|
|
R1 = (mu * r) * (mu * r);
|
|
R2 = (nu * r) * (nu * r);
|
|
s->R3 = mu * nu * r * r;
|
|
w1 = sqrtf(0.25f + R1);
|
|
w2 = sqrtf(0.25f + R2);
|
|
a0 = (w1 + 0.5f) * (w2 + 0.5f) - fabsf(s->R3);
|
|
a1 = 0.5f + w2 - a0;
|
|
a2 = 0.5f + w1 - a0;
|
|
a3 = a0 - w1 - w2;
|
|
s->b0 = 1.f / a0;
|
|
s->b1 = -a2 / a0;
|
|
s->q = -a1 / a0;
|
|
s->c = -a3 / a0;
|
|
}
|
|
|
|
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
|
|
{
|
|
AVFilterContext *ctx = inlink->dst;
|
|
DBlurContext *s = ctx->priv;
|
|
AVFilterLink *outlink = ctx->outputs[0];
|
|
AVFrame *out;
|
|
int plane;
|
|
|
|
set_params(s, s->angle, s->radius);
|
|
|
|
if (av_frame_is_writable(in)) {
|
|
out = in;
|
|
} else {
|
|
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 (plane = 0; plane < s->nb_planes; plane++) {
|
|
const int height = s->planeheight[plane];
|
|
const int width = s->planewidth[plane];
|
|
float *bptr = s->buffer;
|
|
const uint8_t *src = in->data[plane];
|
|
const uint16_t *src16 = (const uint16_t *)in->data[plane];
|
|
const float *src32 = (const float *)in->data[plane];
|
|
uint8_t *dst = out->data[plane];
|
|
uint16_t *dst16 = (uint16_t *)out->data[plane];
|
|
float *dst32 = (float *)out->data[plane];
|
|
int y, x;
|
|
|
|
if (!(s->planes & (1 << plane))) {
|
|
if (out != in)
|
|
av_image_copy_plane(out->data[plane], out->linesize[plane],
|
|
in->data[plane], in->linesize[plane],
|
|
width * ((s->depth + 7) / 8), height);
|
|
continue;
|
|
}
|
|
|
|
if (s->depth == 8) {
|
|
for (y = 0; y < height; y++) {
|
|
for (x = 0; x < width; x++) {
|
|
bptr[x] = src[x];
|
|
}
|
|
bptr += width;
|
|
src += in->linesize[plane];
|
|
}
|
|
} else if (s->depth <= 16) {
|
|
for (y = 0; y < height; y++) {
|
|
for (x = 0; x < width; x++) {
|
|
bptr[x] = src16[x];
|
|
}
|
|
bptr += width;
|
|
src16 += in->linesize[plane] / 2;
|
|
}
|
|
} else {
|
|
for (y = 0; y < height; y++) {
|
|
for (x = 0; x < width; x++) {
|
|
memcpy(bptr, src32, width * sizeof(float));
|
|
}
|
|
bptr += width;
|
|
src32 += in->linesize[plane] / 4;
|
|
}
|
|
}
|
|
|
|
diriir2d(ctx, plane);
|
|
|
|
bptr = s->buffer;
|
|
if (s->depth == 8) {
|
|
for (y = 0; y < height; y++) {
|
|
for (x = 0; x < width; x++) {
|
|
dst[x] = av_clip_uint8(lrintf(bptr[x]));
|
|
}
|
|
bptr += width;
|
|
dst += out->linesize[plane];
|
|
}
|
|
} else if (s->depth <= 16) {
|
|
for (y = 0; y < height; y++) {
|
|
for (x = 0; x < width; x++) {
|
|
dst16[x] = av_clip_uintp2_c(lrintf(bptr[x]), s->depth);
|
|
}
|
|
bptr += width;
|
|
dst16 += out->linesize[plane] / 2;
|
|
}
|
|
} else {
|
|
for (y = 0; y < height; y++) {
|
|
for (x = 0; x < width; x++) {
|
|
memcpy(dst32, bptr, width * sizeof(float));
|
|
}
|
|
bptr += width;
|
|
dst32 += out->linesize[plane] / 4;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (out != in)
|
|
av_frame_free(&in);
|
|
return ff_filter_frame(outlink, out);
|
|
}
|
|
|
|
static const AVFilterPad dblur_inputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = config_input,
|
|
.filter_frame = filter_frame,
|
|
},
|
|
};
|
|
|
|
const AVFilter ff_vf_dblur = {
|
|
.name = "dblur",
|
|
.description = NULL_IF_CONFIG_SMALL("Apply Directional Blur filter."),
|
|
.priv_size = sizeof(DBlurContext),
|
|
.priv_class = &dblur_class,
|
|
.uninit = uninit,
|
|
FILTER_INPUTS(dblur_inputs),
|
|
FILTER_OUTPUTS(ff_video_default_filterpad),
|
|
FILTER_PIXFMTS_ARRAY(pix_fmts),
|
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
|
|
.process_command = ff_filter_process_command,
|
|
};
|