mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
avfilter: add displace video filter
Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
parent
b70566d6ca
commit
0c2b37fed4
@ -16,6 +16,7 @@ version <next>:
|
||||
- Screenpresso SPV1 decoding
|
||||
- chromaprint fingerprinting muxer
|
||||
- ffplay dynamic volume control
|
||||
- displace filter
|
||||
|
||||
|
||||
version 2.8:
|
||||
|
@ -4750,6 +4750,58 @@ Flags to local 3x3 coordinates maps like this:
|
||||
6 7 8
|
||||
@end table
|
||||
|
||||
@section displace
|
||||
|
||||
Displace pixels as indicated by second and third input stream.
|
||||
|
||||
It takes three input streams and outputs one stream, the first input is the
|
||||
source, and second and third input are displacement maps.
|
||||
|
||||
The second input specifies how much to displace pixels along the
|
||||
x-axis, while the third input specifies how much to displace pixels
|
||||
along the y-axis.
|
||||
If one of displacement map streams terminates, last frame from that
|
||||
displacement map will be used.
|
||||
|
||||
Note that once generated, displacements maps can be reused over and over again.
|
||||
|
||||
A description of the accepted options follows.
|
||||
|
||||
@table @option
|
||||
@item edge
|
||||
Set displace behavior for pixels that are out of range.
|
||||
|
||||
Available values are:
|
||||
@table @samp
|
||||
@item blank
|
||||
Missing pixels are replaced by black pixels.
|
||||
|
||||
@item smear
|
||||
Adjacent pixels will spread out to replace missing pixels.
|
||||
|
||||
@item wrap
|
||||
Out of range pixels are wrapped so they point to pixels of other side.
|
||||
@end table
|
||||
Default is @samp{smear}.
|
||||
|
||||
@end table
|
||||
|
||||
@subsection Examples
|
||||
|
||||
@itemize
|
||||
@item
|
||||
Add ripple effect to rgb input of video size hd720:
|
||||
@example
|
||||
ffmpeg -i INPUT -f lavfi -i nullsrc=s=hd720,lutrgb=128:128:128 -f lavfi -i nullsrc=s=hd720,geq='r=128+30*sin(2*PI*X/400+T):g=128+30*sin(2*PI*X/400+T):b=128+30*sin(2*PI*X/400+T)' -lavfi '[0][1][2]displace' OUTPUT
|
||||
@end example
|
||||
|
||||
@item
|
||||
Add wave effect to rgb input of video size hd720:
|
||||
@example
|
||||
ffmpeg -i INPUT -f lavfi -i nullsrc=hd720,geq='r=128+80*(sin(sqrt((X-W/2)*(X-W/2)+(Y-H/2)*(Y-H/2))/220*2*PI+T)):g=128+80*(sin(sqrt((X-W/2)*(X-W/2)+(Y-H/2)*(Y-H/2))/220*2*PI+T)):b=128+80*(sin(sqrt((X-W/2)*(X-W/2)+(Y-H/2)*(Y-H/2))/220*2*PI+T))' -lavfi '[1]split[x][y],[0][x][y]displace' OUTPUT
|
||||
@end example
|
||||
@end itemize
|
||||
|
||||
@section drawbox
|
||||
|
||||
Draw a colored box on the input image.
|
||||
|
@ -126,6 +126,7 @@ OBJS-$(CONFIG_DELOGO_FILTER) += vf_delogo.o
|
||||
OBJS-$(CONFIG_DESHAKE_FILTER) += vf_deshake.o
|
||||
OBJS-$(CONFIG_DETELECINE_FILTER) += vf_detelecine.o
|
||||
OBJS-$(CONFIG_DILATION_FILTER) += vf_neighbor.o
|
||||
OBJS-$(CONFIG_DISPLACE_FILTER) += vf_displace.o framesync.o
|
||||
OBJS-$(CONFIG_DRAWBOX_FILTER) += vf_drawbox.o
|
||||
OBJS-$(CONFIG_DRAWGRAPH_FILTER) += f_drawgraph.o
|
||||
OBJS-$(CONFIG_DRAWGRID_FILTER) += vf_drawbox.o
|
||||
|
@ -148,6 +148,7 @@ void avfilter_register_all(void)
|
||||
REGISTER_FILTER(DESHAKE, deshake, vf);
|
||||
REGISTER_FILTER(DETELECINE, detelecine, vf);
|
||||
REGISTER_FILTER(DILATION, dilation, vf);
|
||||
REGISTER_FILTER(DISPLACE, displace, vf);
|
||||
REGISTER_FILTER(DRAWBOX, drawbox, vf);
|
||||
REGISTER_FILTER(DRAWGRAPH, drawgraph, vf);
|
||||
REGISTER_FILTER(DRAWGRID, drawgrid, vf);
|
||||
|
@ -30,8 +30,8 @@
|
||||
#include "libavutil/version.h"
|
||||
|
||||
#define LIBAVFILTER_VERSION_MAJOR 6
|
||||
#define LIBAVFILTER_VERSION_MINOR 9
|
||||
#define LIBAVFILTER_VERSION_MICRO 101
|
||||
#define LIBAVFILTER_VERSION_MINOR 10
|
||||
#define LIBAVFILTER_VERSION_MICRO 100
|
||||
|
||||
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
|
||||
LIBAVFILTER_VERSION_MINOR, \
|
||||
|
396
libavfilter/vf_displace.c
Normal file
396
libavfilter/vf_displace.c
Normal file
@ -0,0 +1,396 @@
|
||||
/*
|
||||
* Copyright (c) 2013 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/pixdesc.h"
|
||||
#include "libavutil/opt.h"
|
||||
#include "avfilter.h"
|
||||
#include "formats.h"
|
||||
#include "framesync.h"
|
||||
#include "internal.h"
|
||||
#include "video.h"
|
||||
|
||||
enum EdgeMode {
|
||||
EDGE_BLANK,
|
||||
EDGE_SMEAR,
|
||||
EDGE_WRAP,
|
||||
EDGE_NB
|
||||
};
|
||||
|
||||
typedef struct DisplaceContext {
|
||||
const AVClass *class;
|
||||
int width[4], height[4];
|
||||
enum EdgeMode edge;
|
||||
int nb_planes;
|
||||
int nb_components;
|
||||
int step;
|
||||
uint8_t blank[4];
|
||||
FFFrameSync fs;
|
||||
|
||||
void (*displace)(struct DisplaceContext *s, const AVFrame *in,
|
||||
const AVFrame *xpic, const AVFrame *ypic, AVFrame *out);
|
||||
} DisplaceContext;
|
||||
|
||||
#define OFFSET(x) offsetof(DisplaceContext, x)
|
||||
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
|
||||
|
||||
static const AVOption displace_options[] = {
|
||||
{ "edge", "set edge mode", OFFSET(edge), AV_OPT_TYPE_INT, {.i64=EDGE_SMEAR}, 0, EDGE_NB-1, FLAGS, "edge" },
|
||||
{ "blank", "", 0, AV_OPT_TYPE_CONST, {.i64=EDGE_BLANK}, 0, 0, FLAGS, "edge" },
|
||||
{ "smear", "", 0, AV_OPT_TYPE_CONST, {.i64=EDGE_SMEAR}, 0, 0, FLAGS, "edge" },
|
||||
{ "wrap" , "", 0, AV_OPT_TYPE_CONST, {.i64=EDGE_WRAP}, 0, 0, FLAGS, "edge" },
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
AVFILTER_DEFINE_CLASS(displace);
|
||||
|
||||
static int query_formats(AVFilterContext *ctx)
|
||||
{
|
||||
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_RGB24, AV_PIX_FMT_BGR24,
|
||||
AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA,
|
||||
AV_PIX_FMT_0RGB, AV_PIX_FMT_0BGR, AV_PIX_FMT_RGB0, AV_PIX_FMT_BGR0,
|
||||
AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
|
||||
AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE
|
||||
};
|
||||
|
||||
ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void displace_planar(DisplaceContext *s, const AVFrame *in,
|
||||
const AVFrame *xpic, const AVFrame *ypic,
|
||||
AVFrame *out)
|
||||
{
|
||||
int plane, x, y;
|
||||
|
||||
for (plane = 0; plane < s->nb_planes; plane++) {
|
||||
const int h = s->height[plane];
|
||||
const int w = s->width[plane];
|
||||
const int dlinesize = out->linesize[plane];
|
||||
const int slinesize = in->linesize[plane];
|
||||
const int xlinesize = xpic->linesize[plane];
|
||||
const int ylinesize = ypic->linesize[plane];
|
||||
const uint8_t *src = in->data[plane];
|
||||
const uint8_t *ysrc = ypic->data[plane];
|
||||
const uint8_t *xsrc = xpic->data[plane];
|
||||
uint8_t *dst = out->data[plane];
|
||||
const uint8_t blank = s->blank[plane];
|
||||
|
||||
for (y = 0; y < h; y++) {
|
||||
switch (s->edge) {
|
||||
case EDGE_BLANK:
|
||||
for (x = 0; x < w; x++) {
|
||||
int Y = y + ysrc[x] - 128;
|
||||
int X = x + xsrc[x] - 128;
|
||||
|
||||
if (Y < 0 || Y >= h || X < 0 || X >= w)
|
||||
dst[x] = blank;
|
||||
else
|
||||
dst[x] = src[Y * slinesize + X];
|
||||
}
|
||||
break;
|
||||
case EDGE_SMEAR:
|
||||
for (x = 0; x < w; x++) {
|
||||
int Y = av_clip(y + ysrc[x] - 128, 0, h - 1);
|
||||
int X = av_clip(x + xsrc[x] - 128, 0, w - 1);
|
||||
dst[x] = src[Y * slinesize + X];
|
||||
}
|
||||
break;
|
||||
case EDGE_WRAP:
|
||||
for (x = 0; x < w; x++) {
|
||||
int Y = (y + ysrc[x] - 128) % h;
|
||||
int X = (x + xsrc[x] - 128) % w;
|
||||
|
||||
if (Y < 0)
|
||||
Y += h;
|
||||
if (X < 0)
|
||||
X += w;
|
||||
dst[x] = src[Y * slinesize + X];
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
ysrc += ylinesize;
|
||||
xsrc += xlinesize;
|
||||
dst += dlinesize;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void displace_packed(DisplaceContext *s, const AVFrame *in,
|
||||
const AVFrame *xpic, const AVFrame *ypic,
|
||||
AVFrame *out)
|
||||
{
|
||||
const int step = s->step;
|
||||
const int h = s->height[0];
|
||||
const int w = s->width[0];
|
||||
const int dlinesize = out->linesize[0];
|
||||
const int slinesize = in->linesize[0];
|
||||
const int xlinesize = xpic->linesize[0];
|
||||
const int ylinesize = ypic->linesize[0];
|
||||
const uint8_t *src = in->data[0];
|
||||
const uint8_t *ysrc = ypic->data[0];
|
||||
const uint8_t *xsrc = xpic->data[0];
|
||||
const uint8_t *blank = s->blank;
|
||||
uint8_t *dst = out->data[0];
|
||||
int c, x, y;
|
||||
|
||||
for (y = 0; y < h; y++) {
|
||||
switch (s->edge) {
|
||||
case EDGE_BLANK:
|
||||
for (x = 0; x < w; x++) {
|
||||
for (c = 0; c < s->nb_components; c++) {
|
||||
int Y = y + (ysrc[x * step + c] - 128);
|
||||
int X = x + (xsrc[x * step + c] - 128);
|
||||
|
||||
if (Y < 0 || Y >= h || X < 0 || X >= w)
|
||||
dst[x * step + c] = blank[c];
|
||||
else
|
||||
dst[x * step + c] = src[Y * slinesize + X * step + c];
|
||||
}
|
||||
}
|
||||
break;
|
||||
case EDGE_SMEAR:
|
||||
for (x = 0; x < w; x++) {
|
||||
for (c = 0; c < s->nb_components; c++) {
|
||||
int Y = av_clip(y + (ysrc[x * step + c] - 128), 0, h - 1);
|
||||
int X = av_clip(x + (xsrc[x * step + c] - 128), 0, w - 1);
|
||||
|
||||
dst[x * step + c] = src[Y * slinesize + X * step + c];
|
||||
}
|
||||
}
|
||||
break;
|
||||
case EDGE_WRAP:
|
||||
for (x = 0; x < w; x++) {
|
||||
for (c = 0; c < s->nb_components; c++) {
|
||||
int Y = (y + (ysrc[x * step + c] - 128)) % h;
|
||||
int X = (x + (xsrc[x * step + c] - 128)) % w;
|
||||
|
||||
if (Y < 0)
|
||||
Y += h;
|
||||
if (X < 0)
|
||||
X += w;
|
||||
dst[x * step + c] = src[Y * slinesize + X * step + c];
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
ysrc += ylinesize;
|
||||
xsrc += xlinesize;
|
||||
dst += dlinesize;
|
||||
}
|
||||
}
|
||||
|
||||
static int process_frame(FFFrameSync *fs)
|
||||
{
|
||||
AVFilterContext *ctx = fs->parent;
|
||||
DisplaceContext *s = fs->opaque;
|
||||
AVFilterLink *outlink = ctx->outputs[0];
|
||||
AVFrame *out, *in, *xpic, *ypic;
|
||||
int ret;
|
||||
|
||||
if ((ret = ff_framesync_get_frame(&s->fs, 0, &in, 0)) < 0 ||
|
||||
(ret = ff_framesync_get_frame(&s->fs, 1, &xpic, 0)) < 0 ||
|
||||
(ret = ff_framesync_get_frame(&s->fs, 2, &ypic, 0)) < 0)
|
||||
return ret;
|
||||
|
||||
if (ctx->is_disabled) {
|
||||
out = av_frame_clone(in);
|
||||
if (!out)
|
||||
return AVERROR(ENOMEM);
|
||||
} else {
|
||||
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
|
||||
if (!out)
|
||||
return AVERROR(ENOMEM);
|
||||
av_frame_copy_props(out, in);
|
||||
|
||||
s->displace(s, in, xpic, ypic, out);
|
||||
}
|
||||
out->pts = av_rescale_q(in->pts, s->fs.time_base, outlink->time_base);
|
||||
|
||||
return ff_filter_frame(outlink, out);
|
||||
}
|
||||
|
||||
static int config_input(AVFilterLink *inlink)
|
||||
{
|
||||
AVFilterContext *ctx = inlink->dst;
|
||||
DisplaceContext *s = ctx->priv;
|
||||
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
|
||||
int vsub, hsub;
|
||||
|
||||
s->nb_planes = av_pix_fmt_count_planes(inlink->format);
|
||||
s->nb_components = desc->nb_components;
|
||||
|
||||
if (s->nb_planes > 1 || s->nb_components == 1)
|
||||
s->displace = displace_planar;
|
||||
else
|
||||
s->displace = displace_packed;
|
||||
|
||||
if (!(desc->flags & AV_PIX_FMT_FLAG_RGB)) {
|
||||
s->blank[1] = s->blank[2] = 128;
|
||||
s->blank[0] = 16;
|
||||
}
|
||||
|
||||
s->step = av_get_padded_bits_per_pixel(desc) >> 3;
|
||||
hsub = desc->log2_chroma_w;
|
||||
vsub = desc->log2_chroma_h;
|
||||
s->height[1] = s->height[2] = FF_CEIL_RSHIFT(inlink->h, vsub);
|
||||
s->height[0] = s->height[3] = inlink->h;
|
||||
s->width[1] = s->width[2] = FF_CEIL_RSHIFT(inlink->w, hsub);
|
||||
s->width[0] = s->width[3] = inlink->w;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int config_output(AVFilterLink *outlink)
|
||||
{
|
||||
AVFilterContext *ctx = outlink->src;
|
||||
DisplaceContext *s = ctx->priv;
|
||||
AVFilterLink *srclink = ctx->inputs[0];
|
||||
AVFilterLink *xlink = ctx->inputs[1];
|
||||
AVFilterLink *ylink = ctx->inputs[2];
|
||||
FFFrameSyncIn *in;
|
||||
int ret;
|
||||
|
||||
if (srclink->format != xlink->format ||
|
||||
srclink->format != ylink->format) {
|
||||
av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n");
|
||||
return AVERROR(EINVAL);
|
||||
}
|
||||
if (srclink->w != xlink->w ||
|
||||
srclink->h != xlink->h ||
|
||||
srclink->sample_aspect_ratio.num != xlink->sample_aspect_ratio.num ||
|
||||
srclink->sample_aspect_ratio.den != xlink->sample_aspect_ratio.den ||
|
||||
srclink->w != ylink->w ||
|
||||
srclink->h != ylink->h ||
|
||||
srclink->sample_aspect_ratio.num != ylink->sample_aspect_ratio.num ||
|
||||
srclink->sample_aspect_ratio.den != ylink->sample_aspect_ratio.den) {
|
||||
av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
|
||||
"(size %dx%d, SAR %d:%d) do not match the corresponding "
|
||||
"second input link %s parameters (%dx%d, SAR %d:%d) "
|
||||
"and/or third input link %s parameters (%dx%d, SAR %d:%d)\n",
|
||||
ctx->input_pads[0].name, srclink->w, srclink->h,
|
||||
srclink->sample_aspect_ratio.num,
|
||||
srclink->sample_aspect_ratio.den,
|
||||
ctx->input_pads[1].name, xlink->w, xlink->h,
|
||||
xlink->sample_aspect_ratio.num,
|
||||
xlink->sample_aspect_ratio.den,
|
||||
ctx->input_pads[2].name, ylink->w, ylink->h,
|
||||
ylink->sample_aspect_ratio.num,
|
||||
ylink->sample_aspect_ratio.den);
|
||||
return AVERROR(EINVAL);
|
||||
}
|
||||
|
||||
outlink->w = srclink->w;
|
||||
outlink->h = srclink->h;
|
||||
outlink->time_base = srclink->time_base;
|
||||
outlink->sample_aspect_ratio = srclink->sample_aspect_ratio;
|
||||
outlink->frame_rate = srclink->frame_rate;
|
||||
|
||||
ret = ff_framesync_init(&s->fs, ctx, 3);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
in = s->fs.in;
|
||||
in[0].time_base = srclink->time_base;
|
||||
in[1].time_base = xlink->time_base;
|
||||
in[2].time_base = ylink->time_base;
|
||||
in[0].sync = 2;
|
||||
in[0].before = EXT_STOP;
|
||||
in[0].after = EXT_STOP;
|
||||
in[1].sync = 1;
|
||||
in[1].before = EXT_NULL;
|
||||
in[1].after = EXT_INFINITY;
|
||||
in[2].sync = 1;
|
||||
in[2].before = EXT_NULL;
|
||||
in[2].after = EXT_INFINITY;
|
||||
s->fs.opaque = s;
|
||||
s->fs.on_event = process_frame;
|
||||
|
||||
return ff_framesync_configure(&s->fs);
|
||||
}
|
||||
|
||||
static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
|
||||
{
|
||||
DisplaceContext *s = inlink->dst->priv;
|
||||
return ff_framesync_filter_frame(&s->fs, inlink, buf);
|
||||
}
|
||||
|
||||
static int request_frame(AVFilterLink *outlink)
|
||||
{
|
||||
DisplaceContext *s = outlink->src->priv;
|
||||
return ff_framesync_request_frame(&s->fs, outlink);
|
||||
}
|
||||
|
||||
static av_cold void uninit(AVFilterContext *ctx)
|
||||
{
|
||||
DisplaceContext *s = ctx->priv;
|
||||
|
||||
ff_framesync_uninit(&s->fs);
|
||||
}
|
||||
|
||||
static const AVFilterPad displace_inputs[] = {
|
||||
{
|
||||
.name = "source",
|
||||
.type = AVMEDIA_TYPE_VIDEO,
|
||||
.filter_frame = filter_frame,
|
||||
.config_props = config_input,
|
||||
},
|
||||
{
|
||||
.name = "xmap",
|
||||
.type = AVMEDIA_TYPE_VIDEO,
|
||||
.filter_frame = filter_frame,
|
||||
},
|
||||
{
|
||||
.name = "ymap",
|
||||
.type = AVMEDIA_TYPE_VIDEO,
|
||||
.filter_frame = filter_frame,
|
||||
},
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
static const AVFilterPad displace_outputs[] = {
|
||||
{
|
||||
.name = "default",
|
||||
.type = AVMEDIA_TYPE_VIDEO,
|
||||
.config_props = config_output,
|
||||
.request_frame = request_frame,
|
||||
},
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
AVFilter ff_vf_displace = {
|
||||
.name = "displace",
|
||||
.description = NULL_IF_CONFIG_SMALL("Displace pixels."),
|
||||
.priv_size = sizeof(DisplaceContext),
|
||||
.uninit = uninit,
|
||||
.query_formats = query_formats,
|
||||
.inputs = displace_inputs,
|
||||
.outputs = displace_outputs,
|
||||
.priv_class = &displace_class,
|
||||
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
|
||||
};
|
Loading…
Reference in New Issue
Block a user