mirror of https://git.videolan.org/git/ffmpeg.git
avfilter: add erosion, dilation, deflate & inflate filter
Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol
parent
a39512ba9e
commit
3001558487
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@ -16,6 +16,7 @@ version <next>:
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- removegrain video filter
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- Intel QSV-accelerated MPEG-2 video and HEVC encoding
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- libkvazaar HEVC encoder
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- erosion, dilation, deflate and inflate video filters
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version 2.7:
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@ -3718,6 +3718,24 @@ Set whether or not chroma is considered in the metric calculations. Default is
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@code{1}.
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@end table
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@section deflate
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Apply deflate effect to the video.
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This filter replaces the pixel by the local(3x3) average by taking into account
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only values lower than the pixel.
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It accepts the following options:
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@table @option
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@item threshold0
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@item threshold1
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@item threshold2
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@item threshold3
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Allows to limit the maximum change for each plane, default is 65535.
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If 0, plane will remain unchanged.
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@end table
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@section dejudder
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Remove judder produced by partially interlaced telecined content.
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@ -3904,6 +3922,33 @@ A number representing position of the first frame with respect to the telecine
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pattern. This is to be used if the stream is cut. The default value is @code{0}.
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@end table
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@section dilation
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Apply dilation effect to the video.
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This filter replaces the pixel by the local(3x3) maximum.
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It accepts the following options:
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@table @option
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@item threshold0
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@item threshold1
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@item threshold2
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@item threshold3
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Allows to limit the maximum change for each plane, default is 65535.
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If 0, plane will remain unchanged.
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@item coordinates
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Flag which specifies the pixel to refer to. Default is 255 i.e. all eight
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pixels are used.
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Flags to local 3x3 coordinates maps like this:
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1 2 3
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4 5
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6 7 8
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@end table
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@section drawbox
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Draw a colored box on the input image.
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@ -4759,6 +4804,33 @@ value.
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@end table
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@section erosion
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Apply erosion effect to the video.
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This filter replaces the pixel by the local(3x3) minimum.
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It accepts the following options:
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@table @option
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@item threshold0
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@item threshold1
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@item threshold2
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@item threshold3
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Allows to limit the maximum change for each plane, default is 65535.
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If 0, plane will remain unchanged.
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@item coordinates
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Flag which specifies the pixel to refer to. Default is 255 i.e. all eight
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pixels are used.
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Flags to local 3x3 coordinates maps like this:
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1 2 3
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4 5
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6 7 8
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@end table
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@section extractplanes
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Extract color channel components from input video stream into
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@ -6356,6 +6428,24 @@ Default value is @code{none}.
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Swap luma/chroma/alpha fields. Exchange even & odd lines. Default value is @code{0}.
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@end table
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@section inflate
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Apply inflate effect to the video.
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This filter replaces the pixel by the local(3x3) average by taking into account
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only values higher than the pixel.
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It accepts the following options:
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@table @option
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@item threshold0
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@item threshold1
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@item threshold2
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@item threshold3
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Allows to limit the maximum change for each plane, default is 65535.
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If 0, plane will remain unchanged.
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@end table
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@section interlace
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Simple interlacing filter from progressive contents. This interleaves upper (or
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@ -112,10 +112,12 @@ OBJS-$(CONFIG_CROPDETECT_FILTER) += vf_cropdetect.o
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OBJS-$(CONFIG_CURVES_FILTER) += vf_curves.o
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OBJS-$(CONFIG_DCTDNOIZ_FILTER) += vf_dctdnoiz.o
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OBJS-$(CONFIG_DECIMATE_FILTER) += vf_decimate.o
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OBJS-$(CONFIG_DEFLATE_FILTER) += vf_neighbor.o
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OBJS-$(CONFIG_DEJUDDER_FILTER) += vf_dejudder.o
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OBJS-$(CONFIG_DELOGO_FILTER) += vf_delogo.o
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OBJS-$(CONFIG_DESHAKE_FILTER) += vf_deshake.o
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OBJS-$(CONFIG_DETELECINE_FILTER) += vf_detelecine.o
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OBJS-$(CONFIG_DILATION_FILTER) += vf_neighbor.o
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OBJS-$(CONFIG_DRAWBOX_FILTER) += vf_drawbox.o
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OBJS-$(CONFIG_DRAWGRAPH_FILTER) += f_drawgraph.o
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OBJS-$(CONFIG_DRAWGRID_FILTER) += vf_drawbox.o
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@ -123,6 +125,7 @@ OBJS-$(CONFIG_DRAWTEXT_FILTER) += vf_drawtext.o
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OBJS-$(CONFIG_ELBG_FILTER) += vf_elbg.o
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OBJS-$(CONFIG_EDGEDETECT_FILTER) += vf_edgedetect.o
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OBJS-$(CONFIG_EQ_FILTER) += vf_eq.o
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OBJS-$(CONFIG_EROSION_FILTER) += vf_neighbor.o
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OBJS-$(CONFIG_EXTRACTPLANES_FILTER) += vf_extractplanes.o
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OBJS-$(CONFIG_FADE_FILTER) += vf_fade.o
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OBJS-$(CONFIG_FFTFILT_FILTER) += vf_fftfilt.o
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@ -147,6 +150,7 @@ OBJS-$(CONFIG_HQX_FILTER) += vf_hqx.o
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OBJS-$(CONFIG_HUE_FILTER) += vf_hue.o
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OBJS-$(CONFIG_IDET_FILTER) += vf_idet.o
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OBJS-$(CONFIG_IL_FILTER) += vf_il.o
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OBJS-$(CONFIG_INFLATE_FILTER) += vf_neighbor.o
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OBJS-$(CONFIG_INTERLACE_FILTER) += vf_interlace.o
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OBJS-$(CONFIG_INTERLEAVE_FILTER) += f_interleave.o
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OBJS-$(CONFIG_KERNDEINT_FILTER) += vf_kerndeint.o
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@ -128,10 +128,12 @@ void avfilter_register_all(void)
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REGISTER_FILTER(CURVES, curves, vf);
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REGISTER_FILTER(DCTDNOIZ, dctdnoiz, vf);
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REGISTER_FILTER(DECIMATE, decimate, vf);
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REGISTER_FILTER(DEFLATE, deflate, vf);
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REGISTER_FILTER(DEJUDDER, dejudder, vf);
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REGISTER_FILTER(DELOGO, delogo, vf);
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REGISTER_FILTER(DESHAKE, deshake, vf);
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REGISTER_FILTER(DETELECINE, detelecine, vf);
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REGISTER_FILTER(DILATION, dilation, vf);
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REGISTER_FILTER(DRAWBOX, drawbox, vf);
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REGISTER_FILTER(DRAWGRAPH, drawgraph, vf);
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REGISTER_FILTER(DRAWGRID, drawgrid, vf);
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@ -139,6 +141,7 @@ void avfilter_register_all(void)
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REGISTER_FILTER(EDGEDETECT, edgedetect, vf);
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REGISTER_FILTER(ELBG, elbg, vf);
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REGISTER_FILTER(EQ, eq, vf);
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REGISTER_FILTER(EROSION, erosion, vf);
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REGISTER_FILTER(EXTRACTPLANES, extractplanes, vf);
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REGISTER_FILTER(FADE, fade, vf);
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REGISTER_FILTER(FFTFILT, fftfilt, vf);
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@ -163,6 +166,7 @@ void avfilter_register_all(void)
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REGISTER_FILTER(HUE, hue, vf);
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REGISTER_FILTER(IDET, idet, vf);
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REGISTER_FILTER(IL, il, vf);
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REGISTER_FILTER(INFLATE, inflate, vf);
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REGISTER_FILTER(INTERLACE, interlace, vf);
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REGISTER_FILTER(INTERLEAVE, interleave, vf);
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REGISTER_FILTER(KERNDEINT, kerndeint, vf);
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@ -30,7 +30,7 @@
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#include "libavutil/version.h"
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#define LIBAVFILTER_VERSION_MAJOR 5
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#define LIBAVFILTER_VERSION_MINOR 21
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#define LIBAVFILTER_VERSION_MINOR 22
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#define LIBAVFILTER_VERSION_MICRO 100
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#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
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@ -0,0 +1,324 @@
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/*
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* Copyright (c) 2012-2013 Oka Motofumi (chikuzen.mo at gmail dot com)
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* Copyright (c) 2015 Paul B Mahol
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/imgutils.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/opt.h"
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#include "avfilter.h"
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#include "formats.h"
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#include "internal.h"
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#include "video.h"
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typedef struct NContext {
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const AVClass *class;
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int planeheight[4];
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int planewidth[4];
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int nb_planes;
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int threshold[4];
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int coordinates;
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uint8_t *buffer;
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void (*filter)(uint8_t *dst, const uint8_t *p1, int width,
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int threshold, const uint8_t *coordinates[], int coord);
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} NContext;
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static int query_formats(AVFilterContext *ctx)
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{
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static const enum AVPixelFormat pix_fmts[] = {
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AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA420P,
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AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ422P,AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ411P,
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AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
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AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE
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};
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ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
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return 0;
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}
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static av_cold void uninit(AVFilterContext *ctx)
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{
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NContext *s = ctx->priv;
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av_freep(&s->buffer);
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}
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static inline void line_copy8(uint8_t *line, const uint8_t *srcp, int width, int mergin)
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{
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int i;
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memcpy(line, srcp, width);
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for (i = mergin; i > 0; i--) {
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line[-i] = line[i];
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line[width - 1 + i] = line[width - 1 - i];
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}
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}
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static void erosion(uint8_t *dst, const uint8_t *p1, int width,
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int threshold, const uint8_t *coordinates[], int coord)
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{
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int x, i;
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for (x = 0; x < width; x++) {
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int min = p1[x];
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int limit = FFMAX(min - threshold, 0);
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for (i = 0; i < 8; i++) {
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if (coord & (1 << i)) {
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min = FFMIN(min, *(coordinates[i] + x));
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}
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min = FFMAX(min, limit);
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}
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dst[x] = min;
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}
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}
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static void dilation(uint8_t *dst, const uint8_t *p1, int width,
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int threshold, const uint8_t *coordinates[], int coord)
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{
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int x, i;
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for (x = 0; x < width; x++) {
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int max = p1[x];
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int limit = FFMIN(max + threshold, 255);
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for (i = 0; i < 8; i++) {
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if (coord & (1 << i)) {
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max = FFMAX(max, *(coordinates[i] + x));
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}
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max = FFMIN(max, limit);
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}
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dst[x] = max;
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}
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}
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static void deflate(uint8_t *dst, const uint8_t *p1, int width,
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int threshold, const uint8_t *coordinates[], int coord)
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{
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int x, i;
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for (x = 0; x < width; x++) {
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int sum = 0;
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int limit = FFMAX(p1[x] - threshold, 0);
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for (i = 0; i < 8; sum += *(coordinates[i++] + x));
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dst[x] = FFMAX(FFMIN(sum / 8, p1[x]), limit);
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}
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}
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static void inflate(uint8_t *dst, const uint8_t *p1, int width,
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int threshold, const uint8_t *coordinates[], int coord)
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{
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int x, i;
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for (x = 0; x < width; x++) {
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int sum = 0;
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int limit = FFMIN(p1[x] + threshold, 255);
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for (i = 0; i < 8; sum += *(coordinates[i++] + x));
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dst[x] = FFMIN(FFMAX(sum / 8, p1[x]), limit);
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}
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}
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static int config_input(AVFilterLink *inlink)
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{
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AVFilterContext *ctx = inlink->dst;
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NContext *s = ctx->priv;
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
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int ret;
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if ((ret = av_image_fill_linesizes(s->planewidth, inlink->format, inlink->w)) < 0)
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return ret;
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s->planeheight[1] = s->planeheight[2] = FF_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
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s->planeheight[0] = s->planeheight[3] = inlink->h;
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s->nb_planes = av_pix_fmt_count_planes(inlink->format);
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s->buffer = av_malloc(3 * (s->planewidth[0] + 32));
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if (!s->buffer)
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return AVERROR(ENOMEM);
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if (!strcmp(ctx->filter->name, "erosion"))
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s->filter = erosion;
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else if (!strcmp(ctx->filter->name, "dilation"))
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s->filter = dilation;
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else if (!strcmp(ctx->filter->name, "deflate"))
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s->filter = deflate;
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else if (!strcmp(ctx->filter->name, "inflate"))
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s->filter = inflate;
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return 0;
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}
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static int filter_frame(AVFilterLink *inlink, AVFrame *in)
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{
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AVFilterContext *ctx = inlink->dst;
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AVFilterLink *outlink = ctx->outputs[0];
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NContext *s = ctx->priv;
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AVFrame *out;
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int plane, y;
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out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
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if (!out) {
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av_frame_free(&in);
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return AVERROR(ENOMEM);
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}
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av_frame_copy_props(out, in);
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for (plane = 0; plane < s->nb_planes; plane++) {
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const int threshold = s->threshold[plane];
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if (threshold) {
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const uint8_t *src = in->data[plane];
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uint8_t *dst = out->data[plane];
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int stride = in->linesize[plane];
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int height = s->planeheight[plane];
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int width = s->planewidth[plane];
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uint8_t *p0 = s->buffer + 16;
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uint8_t *p1 = p0 + s->planewidth[0];
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uint8_t *p2 = p1 + s->planewidth[0];
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uint8_t *orig = p0, *end = p2;
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line_copy8(p0, src + stride, width, 1);
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line_copy8(p1, src, width, 1);
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for (y = 0; y < height; y++) {
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const uint8_t *coordinates[] = { p0 - 1, p0, p0 + 1,
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p1 - 1, p1 + 1,
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p2 - 1, p2, p2 + 1};
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src += stride * (y < height - 1 ? 1 : -1);
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line_copy8(p2, src, width, 1);
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s->filter(dst, p1, width, threshold, coordinates, s->coordinates);
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p0 = p1;
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p1 = p2;
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p2 = (p2 == end) ? orig: p2 + s->planewidth[0];
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dst += out->linesize[plane];
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}
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} else {
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av_image_copy_plane(out->data[plane], out->linesize[plane],
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in->data[plane], in->linesize[plane],
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s->planewidth[plane], s->planeheight[plane]);
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}
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}
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av_frame_free(&in);
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return ff_filter_frame(outlink, out);
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}
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static const AVFilterPad neighbor_inputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.filter_frame = filter_frame,
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.config_props = config_input,
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},
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{ NULL }
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};
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static const AVFilterPad neighbor_outputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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},
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{ NULL }
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};
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#define OFFSET(x) offsetof(NContext, x)
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||||
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
|
||||
|
||||
#define DEFINE_NEIGHBOR_FILTER(name_, description_) \
|
||||
AVFILTER_DEFINE_CLASS(name_); \
|
||||
\
|
||||
AVFilter ff_vf_##name_ = { \
|
||||
.name = #name_, \
|
||||
.description = NULL_IF_CONFIG_SMALL(description_), \
|
||||
.priv_size = sizeof(NContext), \
|
||||
.priv_class = &name_##_class, \
|
||||
.uninit = uninit, \
|
||||
.query_formats = query_formats, \
|
||||
.inputs = neighbor_inputs, \
|
||||
.outputs = neighbor_outputs, \
|
||||
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, \
|
||||
}
|
||||
|
||||
#if CONFIG_EROSION_FILTER
|
||||
|
||||
static const AVOption erosion_options[] = {
|
||||
{ "threshold0", "set threshold for 1st plane", OFFSET(threshold[0]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS },
|
||||
{ "threshold1", "set threshold for 2nd plane", OFFSET(threshold[1]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS },
|
||||
{ "threshold2", "set threshold for 3rd plane", OFFSET(threshold[2]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS },
|
||||
{ "threshold3", "set threshold for 4th plane", OFFSET(threshold[3]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS },
|
||||
{ "coordinates", "set coordinates", OFFSET(coordinates), AV_OPT_TYPE_INT, {.i64=255}, 0, 255, FLAGS },
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
DEFINE_NEIGHBOR_FILTER(erosion, "Apply erosion effect");
|
||||
|
||||
#endif /* CONFIG_EROSION_FILTER */
|
||||
|
||||
#if CONFIG_DILATION_FILTER
|
||||
|
||||
static const AVOption dilation_options[] = {
|
||||
{ "threshold0", "set threshold for 1st plane", OFFSET(threshold[0]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS },
|
||||
{ "threshold1", "set threshold for 2nd plane", OFFSET(threshold[1]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS },
|
||||
{ "threshold2", "set threshold for 3rd plane", OFFSET(threshold[2]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS },
|
||||
{ "threshold3", "set threshold for 4th plane", OFFSET(threshold[3]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS },
|
||||
{ "coordinates", "set coordinates", OFFSET(coordinates), AV_OPT_TYPE_INT, {.i64=255}, 0, 255, FLAGS },
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
DEFINE_NEIGHBOR_FILTER(dilation, "Apply dilation effect");
|
||||
|
||||
#endif /* CONFIG_DILATION_FILTER */
|
||||
|
||||
#if CONFIG_DEFLATE_FILTER
|
||||
|
||||
static const AVOption deflate_options[] = {
|
||||
{ "threshold0", "set threshold for 1st plane", OFFSET(threshold[0]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS },
|
||||
{ "threshold1", "set threshold for 2nd plane", OFFSET(threshold[1]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS },
|
||||
{ "threshold2", "set threshold for 3rd plane", OFFSET(threshold[2]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS },
|
||||
{ "threshold3", "set threshold for 4th plane", OFFSET(threshold[3]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS },
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
DEFINE_NEIGHBOR_FILTER(deflate, "Apply deflate effect");
|
||||
|
||||
#endif /* CONFIG_DEFLATE_FILTER */
|
||||
|
||||
#if CONFIG_INFLATE_FILTER
|
||||
|
||||
static const AVOption inflate_options[] = {
|
||||
{ "threshold0", "set threshold for 1st plane", OFFSET(threshold[0]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS },
|
||||
{ "threshold1", "set threshold for 2nd plane", OFFSET(threshold[1]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS },
|
||||
{ "threshold2", "set threshold for 3rd plane", OFFSET(threshold[2]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS },
|
||||
{ "threshold3", "set threshold for 4th plane", OFFSET(threshold[3]), AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, FLAGS },
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
DEFINE_NEIGHBOR_FILTER(inflate, "Apply inflate effect");
|
||||
|
||||
#endif /* CONFIG_INFLATE_FILTER */
|
||||
Loading…
Reference in New Issue