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521 lines
19 KiB
C
521 lines
19 KiB
C
/*
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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 <float.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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#include "libavutil/opt.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_luma[5][3] = {
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{ +0.7152, +0.0722, +0.2126 }, // Rec.709 (0)
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{ +0.5900, +0.1100, +0.3000 }, // FCC (1)
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{ +0.5870, +0.1140, +0.2990 }, // Rec.601 (ITU-R BT.470-2/SMPTE 170M) (2)
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{ +0.7010, +0.0870, +0.2120 }, // SMPTE 240M (3)
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{ +0.6780, +0.0593, +0.2627 }, // Rec.2020 (4)
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};
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enum ColorMode {
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COLOR_MODE_NONE = -1,
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COLOR_MODE_BT709,
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COLOR_MODE_FCC,
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COLOR_MODE_BT601,
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COLOR_MODE_SMPTE240M,
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COLOR_MODE_BT2020,
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COLOR_MODE_COUNT
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};
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typedef struct {
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const AVClass *class;
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int yuv_convert[25][3][3];
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int interlaced;
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int source, dest; ///< ColorMode
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int mode;
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int hsub, vsub;
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} ColorMatrixContext;
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typedef struct ThreadData {
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AVFrame *dst;
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const AVFrame *src;
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int c2;
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int c3;
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int c4;
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int c5;
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int c6;
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int c7;
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} ThreadData;
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#define OFFSET(x) offsetof(ColorMatrixContext, x)
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#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
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static const AVOption colormatrix_options[] = {
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{ "src", "set source color matrix", OFFSET(source), AV_OPT_TYPE_INT, {.i64=COLOR_MODE_NONE}, COLOR_MODE_NONE, COLOR_MODE_COUNT-1, .flags=FLAGS, .unit="color_mode" },
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{ "dst", "set destination color matrix", OFFSET(dest), AV_OPT_TYPE_INT, {.i64=COLOR_MODE_NONE}, COLOR_MODE_NONE, COLOR_MODE_COUNT-1, .flags=FLAGS, .unit="color_mode" },
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{ "bt709", "set BT.709 colorspace", 0, AV_OPT_TYPE_CONST, {.i64=COLOR_MODE_BT709}, .flags=FLAGS, .unit="color_mode" },
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{ "fcc", "set FCC colorspace ", 0, AV_OPT_TYPE_CONST, {.i64=COLOR_MODE_FCC}, .flags=FLAGS, .unit="color_mode" },
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{ "bt601", "set BT.601 colorspace", 0, AV_OPT_TYPE_CONST, {.i64=COLOR_MODE_BT601}, .flags=FLAGS, .unit="color_mode" },
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{ "bt470", "set BT.470 colorspace", 0, AV_OPT_TYPE_CONST, {.i64=COLOR_MODE_BT601}, .flags=FLAGS, .unit="color_mode" },
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{ "bt470bg", "set BT.470 colorspace", 0, AV_OPT_TYPE_CONST, {.i64=COLOR_MODE_BT601}, .flags=FLAGS, .unit="color_mode" },
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{ "smpte170m", "set SMTPE-170M colorspace", 0, AV_OPT_TYPE_CONST, {.i64=COLOR_MODE_BT601}, .flags=FLAGS, .unit="color_mode" },
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{ "smpte240m", "set SMPTE-240M colorspace", 0, AV_OPT_TYPE_CONST, {.i64=COLOR_MODE_SMPTE240M}, .flags=FLAGS, .unit="color_mode" },
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{ "bt2020", "set BT.2020 colorspace", 0, AV_OPT_TYPE_CONST, {.i64=COLOR_MODE_BT2020}, .flags=FLAGS, .unit="color_mode" },
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{ NULL }
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};
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AVFILTER_DEFINE_CLASS(colormatrix);
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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], 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], 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 yuv_coeff[5][3][3];
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double rgb_coeffd[5][3][3];
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double yuv_convertd[25][3][3];
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double bscale, rscale;
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int v = 0;
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int i, j, k;
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for (i = 0; i < 5; i++) {
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yuv_coeff[i][0][0] = yuv_coeff_luma[i][0];
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yuv_coeff[i][0][1] = yuv_coeff_luma[i][1];
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yuv_coeff[i][0][2] = yuv_coeff_luma[i][2];
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bscale = 0.5 / (yuv_coeff[i][0][1] - 1.0);
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rscale = 0.5 / (yuv_coeff[i][0][2] - 1.0);
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yuv_coeff[i][1][0] = bscale * yuv_coeff[i][0][0];
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yuv_coeff[i][1][1] = 0.5;
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yuv_coeff[i][1][2] = bscale * yuv_coeff[i][0][2];
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yuv_coeff[i][2][0] = rscale * yuv_coeff[i][0][0];
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yuv_coeff[i][2][1] = rscale * yuv_coeff[i][0][1];
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yuv_coeff[i][2][2] = 0.5;
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}
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for (i = 0; i < 5; i++)
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inverse3x3(rgb_coeffd[i], yuv_coeff[i]);
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for (i = 0; i < 5; i++) {
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for (j = 0; j < 5; 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 * const color_modes[] = {"bt709", "fcc", "bt601", "smpte240m", "bt2020"};
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static av_cold int init(AVFilterContext *ctx)
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{
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ColorMatrixContext *color = ctx->priv;
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if (color->dest == COLOR_MODE_NONE) {
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av_log(ctx, AV_LOG_ERROR, "Unspecified destination color space\n");
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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 must not be identical\n");
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return AVERROR(EINVAL);
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}
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calc_coefficients(ctx);
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return 0;
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}
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static int process_slice_uyvy422(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
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{
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const ThreadData *td = arg;
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const AVFrame *src = td->src;
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AVFrame *dst = td->dst;
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const int height = src->height;
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const int width = src->width*2;
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const int src_pitch = src->linesize[0];
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const int dst_pitch = dst->linesize[0];
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const int slice_start = (height * jobnr ) / nb_jobs;
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const int slice_end = (height * (jobnr+1)) / nb_jobs;
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const unsigned char *srcp = src->data[0] + slice_start * src_pitch;
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unsigned char *dstp = dst->data[0] + slice_start * dst_pitch;
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const int c2 = td->c2;
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const int c3 = td->c3;
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const int c4 = td->c4;
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const int c5 = td->c5;
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const int c6 = td->c6;
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const int c7 = td->c7;
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int x, y;
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for (y = slice_start; y < slice_end; 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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return 0;
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}
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static int process_slice_yuv444p(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
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{
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const ThreadData *td = arg;
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const AVFrame *src = td->src;
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AVFrame *dst = td->dst;
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const int height = src->height;
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const int width = src->width;
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const int slice_start = (height * jobnr ) / nb_jobs;
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const int slice_end = (height * (jobnr+1)) / nb_jobs;
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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 unsigned char *srcpU = src->data[1] + slice_start * src_pitchUV;
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const unsigned char *srcpV = src->data[2] + slice_start * src_pitchUV;
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const unsigned char *srcpY = src->data[0] + slice_start * src_pitchY;
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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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unsigned char *dstpU = dst->data[1] + slice_start * dst_pitchUV;
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unsigned char *dstpV = dst->data[2] + slice_start * dst_pitchUV;
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unsigned char *dstpY = dst->data[0] + slice_start * dst_pitchY;
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const int c2 = td->c2;
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const int c3 = td->c3;
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const int c4 = td->c4;
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const int c5 = td->c5;
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const int c6 = td->c6;
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const int c7 = td->c7;
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int x, y;
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for (y = slice_start; y < slice_end; y++) {
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for (x = 0; x < width; x++) {
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const int u = srcpU[x] - 128;
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const int v = srcpV[x] - 128;
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const int uvval = c2 * u + c3 * v + 1081344;
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dstpY[x] = CB((65536 * (srcpY[x] - 16) + uvval) >> 16);
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dstpU[x] = CB((c4 * u + c5 * v + 8421376) >> 16);
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dstpV[x] = 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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return 0;
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}
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static int process_slice_yuv422p(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
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{
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const ThreadData *td = arg;
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const AVFrame *src = td->src;
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AVFrame *dst = td->dst;
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const int height = src->height;
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const int width = src->width;
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const int slice_start = (height * jobnr ) / nb_jobs;
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const int slice_end = (height * (jobnr+1)) / nb_jobs;
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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 unsigned char *srcpU = src->data[1] + slice_start * src_pitchUV;
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const unsigned char *srcpV = src->data[2] + slice_start * src_pitchUV;
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const unsigned char *srcpY = src->data[0] + slice_start * src_pitchY;
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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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unsigned char *dstpU = dst->data[1] + slice_start * dst_pitchUV;
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unsigned char *dstpV = dst->data[2] + slice_start * dst_pitchUV;
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unsigned char *dstpY = dst->data[0] + slice_start * dst_pitchY;
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const int c2 = td->c2;
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const int c3 = td->c3;
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const int c4 = td->c4;
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const int c5 = td->c5;
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const int c6 = td->c6;
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const int c7 = td->c7;
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int x, y;
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for (y = slice_start; y < slice_end; 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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return 0;
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}
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static int process_slice_yuv420p(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
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{
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const ThreadData *td = arg;
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const AVFrame *src = td->src;
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AVFrame *dst = td->dst;
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const int height = FFALIGN(src->height, 2) >> 1;
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const int width = src->width;
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const int slice_start = ((height * jobnr ) / nb_jobs) << 1;
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const int slice_end = ((height * (jobnr+1)) / nb_jobs) << 1;
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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 dst_pitchY = dst->linesize[0];
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const int dst_pitchUV = dst->linesize[1];
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const unsigned char *srcpY = src->data[0] + src_pitchY * slice_start;
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const unsigned char *srcpU = src->data[1] + src_pitchUV * (slice_start >> 1);
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const unsigned char *srcpV = src->data[2] + src_pitchUV * (slice_start >> 1);
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const unsigned char *srcpN = src->data[0] + src_pitchY * (slice_start + 1);
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unsigned char *dstpU = dst->data[1] + dst_pitchUV * (slice_start >> 1);
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unsigned char *dstpV = dst->data[2] + dst_pitchUV * (slice_start >> 1);
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unsigned char *dstpY = dst->data[0] + dst_pitchY * slice_start;
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unsigned char *dstpN = dst->data[0] + dst_pitchY * (slice_start + 1);
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const int c2 = td->c2;
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const int c3 = td->c3;
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const int c4 = td->c4;
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const int c5 = td->c5;
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const int c6 = td->c6;
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const int c7 = td->c7;
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int x, y;
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for (y = slice_start; y < slice_end; 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;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int config_input(AVFilterLink *inlink)
|
|
{
|
|
AVFilterContext *ctx = inlink->dst;
|
|
ColorMatrixContext *color = ctx->priv;
|
|
const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink->format);
|
|
|
|
color->hsub = pix_desc->log2_chroma_w;
|
|
color->vsub = pix_desc->log2_chroma_h;
|
|
|
|
av_log(ctx, AV_LOG_VERBOSE, "%s -> %s\n",
|
|
color_modes[color->source], color_modes[color->dest]);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int query_formats(AVFilterContext *ctx)
|
|
{
|
|
static const enum AVPixelFormat pix_fmts[] = {
|
|
AV_PIX_FMT_YUV444P,
|
|
AV_PIX_FMT_YUV422P,
|
|
AV_PIX_FMT_YUV420P,
|
|
AV_PIX_FMT_UYVY422,
|
|
AV_PIX_FMT_NONE
|
|
};
|
|
AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
|
|
if (!fmts_list)
|
|
return AVERROR(ENOMEM);
|
|
return ff_set_common_formats(ctx, fmts_list);
|
|
}
|
|
|
|
static int filter_frame(AVFilterLink *link, AVFrame *in)
|
|
{
|
|
AVFilterContext *ctx = link->dst;
|
|
ColorMatrixContext *color = ctx->priv;
|
|
AVFilterLink *outlink = ctx->outputs[0];
|
|
AVFrame *out;
|
|
ThreadData td = {0};
|
|
|
|
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);
|
|
|
|
if (color->source == COLOR_MODE_NONE) {
|
|
enum AVColorSpace cs = in->colorspace;
|
|
enum ColorMode source;
|
|
|
|
switch(cs) {
|
|
case AVCOL_SPC_BT709 : source = COLOR_MODE_BT709 ; break;
|
|
case AVCOL_SPC_FCC : source = COLOR_MODE_FCC ; break;
|
|
case AVCOL_SPC_SMPTE240M : source = COLOR_MODE_SMPTE240M ; break;
|
|
case AVCOL_SPC_BT470BG : source = COLOR_MODE_BT601 ; break;
|
|
case AVCOL_SPC_SMPTE170M : source = COLOR_MODE_BT601 ; break;
|
|
case AVCOL_SPC_BT2020_NCL: source = COLOR_MODE_BT2020 ; break;
|
|
case AVCOL_SPC_BT2020_CL : source = COLOR_MODE_BT2020 ; break;
|
|
default :
|
|
av_log(ctx, AV_LOG_ERROR, "Input frame does not specify a supported colorspace, and none has been specified as source either\n");
|
|
av_frame_free(&out);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
color->mode = source * 5 + color->dest;
|
|
} else
|
|
color->mode = color->source * 5 + color->dest;
|
|
|
|
switch(color->dest) {
|
|
case COLOR_MODE_BT709 : out->colorspace = AVCOL_SPC_BT709 ; break;
|
|
case COLOR_MODE_FCC : out->colorspace = AVCOL_SPC_FCC ; break;
|
|
case COLOR_MODE_SMPTE240M: out->colorspace = AVCOL_SPC_SMPTE240M ; break;
|
|
case COLOR_MODE_BT601 : out->colorspace = AVCOL_SPC_BT470BG ; break;
|
|
case COLOR_MODE_BT2020 : out->colorspace = AVCOL_SPC_BT2020_NCL; break;
|
|
}
|
|
|
|
td.src = in;
|
|
td.dst = out;
|
|
td.c2 = color->yuv_convert[color->mode][0][1];
|
|
td.c3 = color->yuv_convert[color->mode][0][2];
|
|
td.c4 = color->yuv_convert[color->mode][1][1];
|
|
td.c5 = color->yuv_convert[color->mode][1][2];
|
|
td.c6 = color->yuv_convert[color->mode][2][1];
|
|
td.c7 = color->yuv_convert[color->mode][2][2];
|
|
|
|
if (in->format == AV_PIX_FMT_YUV444P)
|
|
ctx->internal->execute(ctx, process_slice_yuv444p, &td, NULL,
|
|
FFMIN(in->height, ff_filter_get_nb_threads(ctx)));
|
|
else if (in->format == AV_PIX_FMT_YUV422P)
|
|
ctx->internal->execute(ctx, process_slice_yuv422p, &td, NULL,
|
|
FFMIN(in->height, ff_filter_get_nb_threads(ctx)));
|
|
else if (in->format == AV_PIX_FMT_YUV420P)
|
|
ctx->internal->execute(ctx, process_slice_yuv420p, &td, NULL,
|
|
FFMIN(in->height / 2, ff_filter_get_nb_threads(ctx)));
|
|
else
|
|
ctx->internal->execute(ctx, process_slice_uyvy422, &td, NULL,
|
|
FFMIN(in->height, ff_filter_get_nb_threads(ctx)));
|
|
|
|
av_frame_free(&in);
|
|
return ff_filter_frame(outlink, out);
|
|
}
|
|
|
|
static const AVFilterPad colormatrix_inputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = config_input,
|
|
.filter_frame = filter_frame,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
static const AVFilterPad colormatrix_outputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
AVFilter ff_vf_colormatrix = {
|
|
.name = "colormatrix",
|
|
.description = NULL_IF_CONFIG_SMALL("Convert color matrix."),
|
|
.priv_size = sizeof(ColorMatrixContext),
|
|
.init = init,
|
|
.query_formats = query_formats,
|
|
.inputs = colormatrix_inputs,
|
|
.outputs = colormatrix_outputs,
|
|
.priv_class = &colormatrix_class,
|
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
|
|
};
|