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https://gitee.com/openharmony/third_party_ffmpeg
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libavfilter: add colormatrix filter
Ported by: Baptiste Coudurier cleanup+fate by ubitux For detailed authorship of the original code please see avisynth
This commit is contained in:
multiple authors
Michael Niedermayer
parent
4480edcf31
commit
13cc3645b0
1
configure
vendored
1
configure
vendored
@ -1670,6 +1670,7 @@ aresample_filter_deps="swresample"
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ass_filter_deps="libass"
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blackframe_filter_deps="gpl"
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boxblur_filter_deps="gpl"
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colormatrix_filter_deps="gpl"
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cropdetect_filter_deps="gpl"
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delogo_filter_deps="gpl"
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drawtext_filter_deps="libfreetype"
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@ -918,6 +918,18 @@ boxblur=min(h\,w)/10:1:min(cw\,ch)/10:1
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@end itemize
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@section colormatrix
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The colormatrix filter allows conversion between any of the following color
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space: BT.709 (@var{bt709}), BT.601 (@var{bt601}), SMPTE-240M (@var{smpte240m})
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and FCC (@var{fcc}).
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The syntax of the parameters is @var{source}:@var{destination}:
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@example
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colormatrix=bt601:smpte240m
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@end example
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@section copy
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Copy the input source unchanged to the output. Mainly useful for
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@ -52,6 +52,7 @@ OBJS-$(CONFIG_BBOX_FILTER) += bbox.o vf_bbox.o
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OBJS-$(CONFIG_BLACKDETECT_FILTER) += vf_blackdetect.o
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OBJS-$(CONFIG_BLACKFRAME_FILTER) += vf_blackframe.o
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OBJS-$(CONFIG_BOXBLUR_FILTER) += vf_boxblur.o
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OBJS-$(CONFIG_COLORMATRIX_FILTER) += vf_colormatrix.o
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OBJS-$(CONFIG_COPY_FILTER) += vf_copy.o
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OBJS-$(CONFIG_CROP_FILTER) += vf_crop.o
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OBJS-$(CONFIG_CROPDETECT_FILTER) += vf_cropdetect.o
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@ -60,6 +60,7 @@ void avfilter_register_all(void)
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REGISTER_FILTER (BLACKDETECT, blackdetect, vf);
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REGISTER_FILTER (BLACKFRAME, blackframe, vf);
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REGISTER_FILTER (BOXBLUR, boxblur, vf);
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REGISTER_FILTER (COLORMATRIX, colormatrix, vf);
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REGISTER_FILTER (COPY, copy, vf);
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REGISTER_FILTER (CROP, crop, vf);
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REGISTER_FILTER (CROPDETECT, cropdetect, vf);
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389
libavfilter/vf_colormatrix.c
Normal file
389
libavfilter/vf_colormatrix.c
Normal file
@ -0,0 +1,389 @@
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/*
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* ColorMatrix v2.2 for Avisynth 2.5.x
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*
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* Copyright (C) 2006-2007 Kevin Stone
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*
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* ColorMatrix 1.x is Copyright (C) Wilbert Dijkhof
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/**
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* @file
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* ColorMatrix 2.0 is based on the original ColorMatrix filter by Wilbert
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* Dijkhof. It adds the ability to convert between any of: Rec.709, FCC,
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* Rec.601, and SMPTE 240M. It also makes pre and post clipping optional,
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* adds an option to use scaled or non-scaled coefficients, and more...
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*/
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#include <strings.h>
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#include <float.h>
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#include "avfilter.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/avstring.h"
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#define NS(n) n < 0 ? (int)(n*65536.0-0.5+DBL_EPSILON) : (int)(n*65536.0+0.5)
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#define CB(n) av_clip_uint8(n)
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static const double yuv_coeff[4][3][3] = {
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{ { +0.7152, +0.0722, +0.2126 }, // Rec.709 (0)
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{ -0.3850, +0.5000, -0.1150 },
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{ -0.4540, -0.0460, +0.5000 } },
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{ { +0.5900, +0.1100, +0.3000 }, // FCC (1)
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{ -0.3310, +0.5000, -0.1690 },
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{ -0.4210, -0.0790, +0.5000 } },
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{ { +0.5870, +0.1140, +0.2990 }, // Rec.601 (ITU-R BT.470-2/SMPTE 170M) (2)
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{ -0.3313, +0.5000, -0.1687 },
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{ -0.4187, -0.0813, +0.5000 } },
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{ { +0.7010, +0.0870, +0.2120 }, // SMPTE 240M (3)
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{ -0.3840, +0.5000, -0.1160 },
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{ -0.4450, -0.0550, +0.5000 } },
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};
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typedef struct {
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int yuv_convert[16][3][3];
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int interlaced;
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int source, dest, mode;
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char src[256];
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char dst[256];
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int hsub, vsub;
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} ColorMatrixContext;
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#define ma m[0][0]
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#define mb m[0][1]
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#define mc m[0][2]
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#define md m[1][0]
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#define me m[1][1]
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#define mf m[1][2]
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#define mg m[2][0]
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#define mh m[2][1]
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#define mi m[2][2]
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#define ima im[0][0]
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#define imb im[0][1]
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#define imc im[0][2]
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#define imd im[1][0]
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#define ime im[1][1]
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#define imf im[1][2]
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#define img im[2][0]
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#define imh im[2][1]
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#define imi im[2][2]
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static void inverse3x3(double im[3][3], const double m[3][3])
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{
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double det = ma * (me * mi - mf * mh) - mb * (md * mi - mf * mg) + mc * (md * mh - me * mg);
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det = 1.0 / det;
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ima = det * (me * mi - mf * mh);
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imb = det * (mc * mh - mb * mi);
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imc = det * (mb * mf - mc * me);
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imd = det * (mf * mg - md * mi);
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ime = det * (ma * mi - mc * mg);
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imf = det * (mc * md - ma * mf);
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img = det * (md * mh - me * mg);
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imh = det * (mb * mg - ma * mh);
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imi = det * (ma * me - mb * md);
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}
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static void solve_coefficients(double cm[3][3], double rgb[3][3], const double yuv[3][3])
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{
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int i, j;
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for (i = 0; i < 3; i++)
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for (j = 0; j < 3; j++)
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cm[i][j] = yuv[i][0] * rgb[0][j] + yuv[i][1] * rgb[1][j] + yuv[i][2] * rgb[2][j];
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}
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static void calc_coefficients(AVFilterContext *ctx)
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{
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ColorMatrixContext *color = ctx->priv;
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double rgb_coeffd[4][3][3];
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double yuv_convertd[16][3][3];
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int v = 0;
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int i, j, k;
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for (i = 0; i < 4; i++)
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inverse3x3(rgb_coeffd[i], yuv_coeff[i]);
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for (i = 0; i < 4; i++) {
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for (j = 0; j < 4; j++) {
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solve_coefficients(yuv_convertd[v], rgb_coeffd[i], yuv_coeff[j]);
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for (k = 0; k < 3; k++) {
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color->yuv_convert[v][k][0] = NS(yuv_convertd[v][k][0]);
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color->yuv_convert[v][k][1] = NS(yuv_convertd[v][k][1]);
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color->yuv_convert[v][k][2] = NS(yuv_convertd[v][k][2]);
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}
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if (color->yuv_convert[v][0][0] != 65536 || color->yuv_convert[v][1][0] != 0 ||
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color->yuv_convert[v][2][0] != 0) {
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av_log(ctx, AV_LOG_ERROR, "error calculating conversion coefficients\n");
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}
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v++;
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}
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}
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}
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static const char *color_modes[] = {"bt709", "FCC", "bt601", "smpte240m"};
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static int get_color_mode_index(const char *name)
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{
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int i;
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for (i = 0; i < FF_ARRAY_ELEMS(color_modes); i++)
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if (!av_strcasecmp(color_modes[i], name))
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return i;
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return -1;
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}
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static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
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{
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ColorMatrixContext *color = ctx->priv;
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if (!args)
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goto usage;
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if (sscanf(args, "%255[^:]:%255[^:]", color->src, color->dst) != 2) {
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usage:
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av_log(ctx, AV_LOG_ERROR, "usage: <src>:<dst>\n");
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av_log(ctx, AV_LOG_ERROR, "possible options: bt709,bt601,smpte240m,fcc\n");
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return -1;
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}
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color->source = get_color_mode_index(color->src);
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if (color->source < 0) {
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av_log(ctx, AV_LOG_ERROR, "unknown color space %s\n", color->src);
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return AVERROR(EINVAL);
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}
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color->dest = get_color_mode_index(color->dst);
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if (color->dest < 0) {
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av_log(ctx, AV_LOG_ERROR, "unknown color space %s\n", color->dst);
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return AVERROR(EINVAL);
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}
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if (color->source == color->dest) {
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av_log(ctx, AV_LOG_ERROR, "source and destination color space are identical\n");
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return AVERROR(EINVAL);
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}
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color->mode = color->source * 4 + color->dest;
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calc_coefficients(ctx);
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return 0;
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}
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static void process_frame_uyvy422(ColorMatrixContext *color,
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AVFilterBufferRef *dst, AVFilterBufferRef *src)
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{
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const unsigned char *srcp = src->data[0];
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const int src_pitch = src->linesize[0];
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const int height = src->video->h;
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const int width = src->video->w*2;
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unsigned char *dstp = dst->data[0];
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const int dst_pitch = dst->linesize[0];
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const int c2 = color->yuv_convert[color->mode][0][1];
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const int c3 = color->yuv_convert[color->mode][0][2];
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const int c4 = color->yuv_convert[color->mode][1][1];
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const int c5 = color->yuv_convert[color->mode][1][2];
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const int c6 = color->yuv_convert[color->mode][2][1];
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const int c7 = color->yuv_convert[color->mode][2][2];
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int x, y;
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for (y = 0; y < height; y++) {
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for (x = 0; x < width; x += 4) {
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const int u = srcp[x + 0] - 128;
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const int v = srcp[x + 2] - 128;
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const int uvval = c2 * u + c3 * v + 1081344;
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dstp[x + 0] = CB((c4 * u + c5 * v + 8421376) >> 16);
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dstp[x + 1] = CB((65536 * (srcp[x + 1] - 16) + uvval) >> 16);
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dstp[x + 2] = CB((c6 * u + c7 * v + 8421376) >> 16);
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dstp[x + 3] = CB((65536 * (srcp[x + 3] - 16) + uvval) >> 16);
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}
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srcp += src_pitch;
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dstp += dst_pitch;
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}
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}
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static void process_frame_yuv422p(ColorMatrixContext *color,
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AVFilterBufferRef *dst, AVFilterBufferRef *src)
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{
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const unsigned char *srcpU = src->data[1];
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const unsigned char *srcpV = src->data[2];
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const unsigned char *srcpY = src->data[0];
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const int src_pitchY = src->linesize[0];
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const int src_pitchUV = src->linesize[1];
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const int height = src->video->h;
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const int width = src->video->w;
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unsigned char *dstpU = dst->data[1];
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unsigned char *dstpV = dst->data[2];
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unsigned char *dstpY = dst->data[0];
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const int dst_pitchY = dst->linesize[0];
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const int dst_pitchUV = dst->linesize[1];
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const int c2 = color->yuv_convert[color->mode][0][1];
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const int c3 = color->yuv_convert[color->mode][0][2];
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const int c4 = color->yuv_convert[color->mode][1][1];
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const int c5 = color->yuv_convert[color->mode][1][2];
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const int c6 = color->yuv_convert[color->mode][2][1];
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const int c7 = color->yuv_convert[color->mode][2][2];
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int x, y;
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for (y = 0; y < height; y++) {
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for (x = 0; x < width; x += 2) {
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const int u = srcpU[x >> 1] - 128;
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const int v = srcpV[x >> 1] - 128;
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const int uvval = c2 * u + c3 * v + 1081344;
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dstpY[x + 0] = CB((65536 * (srcpY[x + 0] - 16) + uvval) >> 16);
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dstpY[x + 1] = CB((65536 * (srcpY[x + 1] - 16) + uvval) >> 16);
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dstpU[x >> 1] = CB((c4 * u + c5 * v + 8421376) >> 16);
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dstpV[x >> 1] = CB((c6 * u + c7 * v + 8421376) >> 16);
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}
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srcpY += src_pitchY;
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dstpY += dst_pitchY;
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srcpU += src_pitchUV;
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srcpV += src_pitchUV;
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dstpU += dst_pitchUV;
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dstpV += dst_pitchUV;
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}
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}
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static void process_frame_yuv420p(ColorMatrixContext *color,
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AVFilterBufferRef *dst, AVFilterBufferRef *src)
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{
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const unsigned char *srcpU = src->data[1];
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const unsigned char *srcpV = src->data[2];
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const unsigned char *srcpY = src->data[0];
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const unsigned char *srcpN = src->data[0] + src->linesize[0];
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const int src_pitchY = src->linesize[0];
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const int src_pitchUV = src->linesize[1];
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const int height = src->video->h;
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const int width = src->video->w;
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unsigned char *dstpU = dst->data[1];
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unsigned char *dstpV = dst->data[2];
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unsigned char *dstpY = dst->data[0];
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unsigned char *dstpN = dst->data[0] + dst->linesize[0];
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const int dst_pitchY = dst->linesize[0];
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const int dst_pitchUV = dst->linesize[1];
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const int c2 = color->yuv_convert[color->mode][0][1];
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const int c3 = color->yuv_convert[color->mode][0][2];
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const int c4 = color->yuv_convert[color->mode][1][1];
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const int c5 = color->yuv_convert[color->mode][1][2];
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const int c6 = color->yuv_convert[color->mode][2][1];
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const int c7 = color->yuv_convert[color->mode][2][2];
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int x, y;
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for (y = 0; y < height; y += 2) {
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for (x = 0; x < width; x += 2) {
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const int u = srcpU[x >> 1] - 128;
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const int v = srcpV[x >> 1] - 128;
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const int uvval = c2 * u + c3 * v + 1081344;
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dstpY[x + 0] = CB((65536 * (srcpY[x + 0] - 16) + uvval) >> 16);
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dstpY[x + 1] = CB((65536 * (srcpY[x + 1] - 16) + uvval) >> 16);
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dstpN[x + 0] = CB((65536 * (srcpN[x + 0] - 16) + uvval) >> 16);
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dstpN[x + 1] = CB((65536 * (srcpN[x + 1] - 16) + uvval) >> 16);
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dstpU[x >> 1] = CB((c4 * u + c5 * v + 8421376) >> 16);
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dstpV[x >> 1] = CB((c6 * u + c7 * v + 8421376) >> 16);
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}
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srcpY += src_pitchY << 1;
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dstpY += dst_pitchY << 1;
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srcpN += src_pitchY << 1;
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dstpN += dst_pitchY << 1;
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srcpU += src_pitchUV;
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srcpV += src_pitchUV;
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dstpU += dst_pitchUV;
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dstpV += dst_pitchUV;
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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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ColorMatrixContext *color = ctx->priv;
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const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[inlink->format];
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color->hsub = pix_desc->log2_chroma_w;
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color->vsub = pix_desc->log2_chroma_h;
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av_log(ctx, AV_LOG_INFO, "%s -> %s\n", color->src, color->dst);
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return 0;
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}
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static int query_formats(AVFilterContext *ctx)
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{
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static const enum PixelFormat pix_fmts[] = {
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PIX_FMT_YUV422P,
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PIX_FMT_YUV420P,
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PIX_FMT_UYVY422,
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PIX_FMT_NONE
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};
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avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
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return 0;
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}
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static AVFilterBufferRef *get_video_buffer(AVFilterLink *inlink, int perms, int w, int h)
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{
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AVFilterBufferRef *picref =
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avfilter_get_video_buffer(inlink->dst->outputs[0], perms, w, h);
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return picref;
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}
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static void start_frame(AVFilterLink *link, AVFilterBufferRef *picref)
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{
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AVFilterBufferRef *outpicref = avfilter_ref_buffer(picref, ~0);
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|
||||
link->dst->outputs[0]->out_buf = outpicref;
|
||||
|
||||
avfilter_start_frame(link->dst->outputs[0], outpicref);
|
||||
}
|
||||
|
||||
static void end_frame(AVFilterLink *link)
|
||||
{
|
||||
AVFilterContext *ctx = link->dst;
|
||||
ColorMatrixContext *color = ctx->priv;
|
||||
AVFilterBufferRef *out = link->dst->outputs[0]->out_buf;
|
||||
|
||||
if (link->cur_buf->format == PIX_FMT_YUV422P)
|
||||
process_frame_yuv422p(color, out, link->cur_buf);
|
||||
else if (link->cur_buf->format == PIX_FMT_YUV420P)
|
||||
process_frame_yuv420p(color, out, link->cur_buf);
|
||||
else
|
||||
process_frame_uyvy422(color, out, link->cur_buf);
|
||||
|
||||
avfilter_draw_slice(ctx->outputs[0], 0, link->dst->outputs[0]->h, 1);
|
||||
avfilter_end_frame(ctx->outputs[0]);
|
||||
avfilter_unref_buffer(link->cur_buf);
|
||||
}
|
||||
|
||||
static void null_draw_slice(AVFilterLink *link, int y, int h, int slice_dir) { }
|
||||
|
||||
AVFilter avfilter_vf_colormatrix = {
|
||||
.name = "colormatrix",
|
||||
.description = NULL_IF_CONFIG_SMALL("Color matrix conversion"),
|
||||
|
||||
.priv_size = sizeof(ColorMatrixContext),
|
||||
.init = init,
|
||||
.query_formats = query_formats,
|
||||
|
||||
.inputs = (AVFilterPad[]) {{ .name = "default",
|
||||
.type = AVMEDIA_TYPE_VIDEO,
|
||||
.config_props = config_input,
|
||||
.start_frame = start_frame,
|
||||
.get_video_buffer = get_video_buffer,
|
||||
.draw_slice = null_draw_slice,
|
||||
.end_frame = end_frame, },
|
||||
{ .name = NULL }},
|
||||
|
||||
.outputs = (AVFilterPad[]) {{ .name = "default",
|
||||
.type = AVMEDIA_TYPE_VIDEO, },
|
||||
{ .name = NULL }},
|
||||
};
|
||||
@ -28,6 +28,11 @@ do_lavfi() {
|
||||
fi
|
||||
}
|
||||
|
||||
do_lavfi_colormatrix() {
|
||||
do_lavfi "${1}1" "$1=$4:$5,$1=$5:$3,$1=$3:$4,$1=$4:$3,$1=$3:$5,$1=$5:$2"
|
||||
do_lavfi "${1}2" "$1=$2:$3,$1=$3:$2,$1=$2:$4,$1=$4:$2,$1=$2:$5,$1=$5:$4"
|
||||
}
|
||||
|
||||
do_lavfi "crop" "crop=iw-100:ih-100:100:100"
|
||||
do_lavfi "crop_scale" "crop=iw-100:ih-100:100:100,scale=400:-1"
|
||||
do_lavfi "crop_scale_vflip" "null,null,crop=iw-200:ih-200:200:200,crop=iw-20:ih-20:20:20,scale=200:200,scale=250:250,vflip,vflip,null,scale=200:200,crop=iw-100:ih-100:100:100,vflip,scale=200:200,null,vflip,crop=iw-100:ih-100:100:100,null"
|
||||
@ -55,6 +60,8 @@ do_lavfi "vflip" "vflip"
|
||||
do_lavfi "vflip_crop" "vflip,crop=iw-100:ih-100:100:100"
|
||||
do_lavfi "vflip_vflip" "vflip,vflip"
|
||||
|
||||
do_lavfi_colormatrix "colormatrix" bt709 fcc bt601 smpte240m
|
||||
|
||||
do_lavfi_pixfmts(){
|
||||
test ${test%_[bl]e} = pixfmts_$1 || return 0
|
||||
filter=$1
|
||||
|
||||
Loading…
Reference in New Issue
Block a user