mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-20 23:36:38 +00:00
db43a39bbf
And also rename the remaining symbols to prevent conflicts during static linking. https://bugzilla.gnome.org/show_bug.cgi?id=728443
577 lines
14 KiB
C
577 lines
14 KiB
C
/* GStreamer
|
|
* Copyright (C) 2008 David Schleef <ds@entropywave.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/math-compat.h>
|
|
#include "gstcms.h"
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <math.h>
|
|
|
|
|
|
/* our simple CMS */
|
|
|
|
void
|
|
videomixer_color_xyY_to_XYZ (Color * c)
|
|
{
|
|
if (c->v[1] == 0) {
|
|
c->v[0] = 0;
|
|
c->v[1] = 0;
|
|
c->v[2] = 0;
|
|
} else {
|
|
double X, Y, Z;
|
|
X = c->v[0] * c->v[2] / c->v[1];
|
|
Y = c->v[2];
|
|
Z = (1.0 - c->v[0] - c->v[1]) * c->v[2] / c->v[1];
|
|
c->v[0] = X;
|
|
c->v[1] = Y;
|
|
c->v[2] = Z;
|
|
}
|
|
}
|
|
|
|
void
|
|
videomixer_color_XYZ_to_xyY (Color * c)
|
|
{
|
|
double d;
|
|
d = c->v[0] + c->v[1] + c->v[2];
|
|
if (d == 0) {
|
|
c->v[0] = 0.3128;
|
|
c->v[1] = 0.3290;
|
|
c->v[2] = 0;
|
|
} else {
|
|
double x, y, Y;
|
|
x = c->v[0] / d;
|
|
y = c->v[1] / d;
|
|
Y = c->v[1];
|
|
c->v[0] = x;
|
|
c->v[1] = y;
|
|
c->v[2] = Y;
|
|
}
|
|
}
|
|
|
|
void
|
|
videomixer_color_set (Color * c, double x, double y, double z)
|
|
{
|
|
c->v[0] = x;
|
|
c->v[1] = y;
|
|
c->v[2] = z;
|
|
}
|
|
|
|
void
|
|
videomixer_color_matrix_set_identity (ColorMatrix * m)
|
|
{
|
|
int i, j;
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
for (j = 0; j < 4; j++) {
|
|
m->m[i][j] = (i == j);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Prettyprint a 4x4 matrix @m@ */
|
|
void
|
|
videomixer_color_matrix_dump (ColorMatrix * m)
|
|
{
|
|
int i, j;
|
|
|
|
printf ("[\n");
|
|
for (i = 0; i < 4; i++) {
|
|
printf (" ");
|
|
for (j = 0; j < 4; j++) {
|
|
printf (" %8.5g", m->m[i][j]);
|
|
}
|
|
printf ("\n");
|
|
}
|
|
printf ("]\n");
|
|
}
|
|
|
|
/* Perform 4x4 matrix multiplication:
|
|
* - @dst@ = @a@ * @b@
|
|
* - @dst@ may be a pointer to @a@ andor @b@
|
|
*/
|
|
void
|
|
videomixer_color_matrix_multiply (ColorMatrix * dst, ColorMatrix * a,
|
|
ColorMatrix * b)
|
|
{
|
|
ColorMatrix tmp;
|
|
int i, j, k;
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
for (j = 0; j < 4; j++) {
|
|
double x = 0;
|
|
for (k = 0; k < 4; k++) {
|
|
x += a->m[i][k] * b->m[k][j];
|
|
}
|
|
tmp.m[i][j] = x;
|
|
}
|
|
}
|
|
|
|
memcpy (dst, &tmp, sizeof (ColorMatrix));
|
|
}
|
|
|
|
void
|
|
videomixer_color_matrix_apply (ColorMatrix * m, Color * dest, Color * src)
|
|
{
|
|
int i;
|
|
Color tmp;
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
double x = 0;
|
|
x += m->m[i][0] * src->v[0];
|
|
x += m->m[i][1] * src->v[1];
|
|
x += m->m[i][2] * src->v[2];
|
|
x += m->m[i][3];
|
|
tmp.v[i] = x;
|
|
}
|
|
memcpy (dest, &tmp, sizeof (tmp));
|
|
}
|
|
|
|
void
|
|
videomixer_color_matrix_offset_components (ColorMatrix * m, double a1,
|
|
double a2, double a3)
|
|
{
|
|
ColorMatrix a;
|
|
|
|
videomixer_color_matrix_set_identity (&a);
|
|
a.m[0][3] = a1;
|
|
a.m[1][3] = a2;
|
|
a.m[2][3] = a3;
|
|
videomixer_color_matrix_multiply (m, &a, m);
|
|
}
|
|
|
|
void
|
|
videomixer_color_matrix_scale_components (ColorMatrix * m, double a1, double a2,
|
|
double a3)
|
|
{
|
|
ColorMatrix a;
|
|
|
|
videomixer_color_matrix_set_identity (&a);
|
|
a.m[0][0] = a1;
|
|
a.m[1][1] = a2;
|
|
a.m[2][2] = a3;
|
|
videomixer_color_matrix_multiply (m, &a, m);
|
|
}
|
|
|
|
void
|
|
videomixer_color_matrix_YCbCr_to_RGB (ColorMatrix * m, double Kr, double Kb)
|
|
{
|
|
double Kg = 1.0 - Kr - Kb;
|
|
ColorMatrix k = {
|
|
{
|
|
{1., 0., 2 * (1 - Kr), 0.},
|
|
{1., -2 * Kb * (1 - Kb) / Kg, -2 * Kr * (1 - Kr) / Kg, 0.},
|
|
{1., 2 * (1 - Kb), 0., 0.},
|
|
{0., 0., 0., 1.},
|
|
}
|
|
};
|
|
|
|
videomixer_color_matrix_multiply (m, &k, m);
|
|
}
|
|
|
|
void
|
|
videomixer_color_matrix_RGB_to_YCbCr (ColorMatrix * m, double Kr, double Kb)
|
|
{
|
|
double Kg = 1.0 - Kr - Kb;
|
|
ColorMatrix k;
|
|
double x;
|
|
|
|
k.m[0][0] = Kr;
|
|
k.m[0][1] = Kg;
|
|
k.m[0][2] = Kb;
|
|
k.m[0][3] = 0;
|
|
|
|
x = 1 / (2 * (1 - Kb));
|
|
k.m[1][0] = -x * Kr;
|
|
k.m[1][1] = -x * Kg;
|
|
k.m[1][2] = x * (1 - Kb);
|
|
k.m[1][3] = 0;
|
|
|
|
x = 1 / (2 * (1 - Kr));
|
|
k.m[2][0] = x * (1 - Kr);
|
|
k.m[2][1] = -x * Kg;
|
|
k.m[2][2] = -x * Kb;
|
|
k.m[2][3] = 0;
|
|
|
|
k.m[3][0] = 0;
|
|
k.m[3][1] = 0;
|
|
k.m[3][2] = 0;
|
|
k.m[3][3] = 1;
|
|
|
|
videomixer_color_matrix_multiply (m, &k, m);
|
|
}
|
|
|
|
void
|
|
videomixer_color_matrix_build_yuv_to_rgb_601 (ColorMatrix * dst)
|
|
{
|
|
/*
|
|
* At this point, everything is in YCbCr
|
|
* All components are in the range [0,255]
|
|
*/
|
|
videomixer_color_matrix_set_identity (dst);
|
|
|
|
/* offset required to get input video black to (0.,0.,0.) */
|
|
videomixer_color_matrix_offset_components (dst, -16, -128, -128);
|
|
|
|
/* scale required to get input video black to (0.,0.,0.) */
|
|
videomixer_color_matrix_scale_components (dst, (1 / 219.0), (1 / 224.0),
|
|
(1 / 224.0));
|
|
|
|
/* colour matrix, YCbCr -> RGB */
|
|
/* Requires Y in [0,1.0], Cb&Cr in [-0.5,0.5] */
|
|
videomixer_color_matrix_YCbCr_to_RGB (dst, 0.2990, 0.1140); /* SD */
|
|
|
|
/*
|
|
* We are now in RGB space
|
|
*/
|
|
|
|
#if 0
|
|
/* scale to output range. */
|
|
videomixer_color_matrix_scale_components (dst, 255.0, 255.0, 255.0);
|
|
#endif
|
|
}
|
|
|
|
void
|
|
videomixer_color_matrix_build_bt709_to_bt601 (ColorMatrix * dst)
|
|
{
|
|
videomixer_color_matrix_set_identity (dst);
|
|
|
|
/* offset required to get input video black to (0.,0.,0.) */
|
|
videomixer_color_matrix_offset_components (dst, -16, -128, -128);
|
|
|
|
/* scale required to get input video black to (0.,0.,0.) */
|
|
videomixer_color_matrix_scale_components (dst, (1 / 219.0), (1 / 224.0),
|
|
(1 / 224.0));
|
|
|
|
/* colour matrix, YCbCr -> RGB */
|
|
/* Requires Y in [0,1.0], Cb&Cr in [-0.5,0.5] */
|
|
videomixer_color_matrix_YCbCr_to_RGB (dst, 0.2126, 0.0722); /* HD */
|
|
|
|
videomixer_color_matrix_RGB_to_YCbCr (dst, 0.2990, 0.1140); /* SD */
|
|
|
|
videomixer_color_matrix_scale_components (dst, 219.0, 224.0, 224.0);
|
|
|
|
videomixer_color_matrix_offset_components (dst, 16, 128, 128);
|
|
}
|
|
|
|
void
|
|
videomixer_color_matrix_build_rgb_to_yuv_601 (ColorMatrix * dst)
|
|
{
|
|
videomixer_color_matrix_set_identity (dst);
|
|
|
|
videomixer_color_matrix_RGB_to_YCbCr (dst, 0.2990, 0.1140); /* SD */
|
|
|
|
videomixer_color_matrix_scale_components (dst, 219.0, 224.0, 224.0);
|
|
|
|
videomixer_color_matrix_offset_components (dst, 16, 128, 128);
|
|
|
|
{
|
|
Color c;
|
|
int i;
|
|
for (i = 7; i >= 0; i--) {
|
|
videomixer_color_set (&c, (i & 2) ? 0.75 : 0.0, (i & 4) ? 0.75 : 0.0,
|
|
(i & 1) ? 0.75 : 0.0);
|
|
videomixer_color_matrix_apply (dst, &c, &c);
|
|
g_print (" { %g, %g, %g },\n", rint (c.v[0]), rint (c.v[1]),
|
|
rint (c.v[2]));
|
|
}
|
|
videomixer_color_set (&c, -0.075, -0.075, -0.075);
|
|
videomixer_color_matrix_apply (dst, &c, &c);
|
|
g_print (" { %g, %g, %g },\n", rint (c.v[0]), rint (c.v[1]),
|
|
rint (c.v[2]));
|
|
videomixer_color_set (&c, 0.075, 0.075, 0.075);
|
|
videomixer_color_matrix_apply (dst, &c, &c);
|
|
g_print (" { %g, %g, %g },\n", rint (c.v[0]), rint (c.v[1]),
|
|
rint (c.v[2]));
|
|
}
|
|
}
|
|
|
|
void
|
|
videomixer_color_matrix_invert (ColorMatrix * m)
|
|
{
|
|
ColorMatrix tmp;
|
|
int i, j;
|
|
double det;
|
|
|
|
videomixer_color_matrix_set_identity (&tmp);
|
|
for (j = 0; j < 3; j++) {
|
|
for (i = 0; i < 3; i++) {
|
|
tmp.m[j][i] =
|
|
m->m[(i + 1) % 3][(j + 1) % 3] * m->m[(i + 2) % 3][(j + 2) % 3] -
|
|
m->m[(i + 1) % 3][(j + 2) % 3] * m->m[(i + 2) % 3][(j + 1) % 3];
|
|
}
|
|
}
|
|
det =
|
|
tmp.m[0][0] * m->m[0][0] + tmp.m[0][1] * m->m[1][0] +
|
|
tmp.m[0][2] * m->m[2][0];
|
|
for (j = 0; j < 3; j++) {
|
|
for (i = 0; i < 3; i++) {
|
|
tmp.m[i][j] /= det;
|
|
}
|
|
}
|
|
memcpy (m, &tmp, sizeof (tmp));
|
|
}
|
|
|
|
void
|
|
videomixer_color_matrix_copy (ColorMatrix * dest, ColorMatrix * src)
|
|
{
|
|
memcpy (dest, src, sizeof (ColorMatrix));
|
|
}
|
|
|
|
void
|
|
videomixer_color_matrix_transpose (ColorMatrix * m)
|
|
{
|
|
int i, j;
|
|
ColorMatrix tmp;
|
|
|
|
videomixer_color_matrix_set_identity (&tmp);
|
|
for (i = 0; i < 3; i++) {
|
|
for (j = 0; j < 3; j++) {
|
|
tmp.m[i][j] = m->m[j][i];
|
|
}
|
|
}
|
|
memcpy (m, &tmp, sizeof (ColorMatrix));
|
|
}
|
|
|
|
void
|
|
videomixer_color_matrix_build_XYZ (ColorMatrix * dst,
|
|
double rx, double ry,
|
|
double gx, double gy, double bx, double by, double wx, double wy)
|
|
{
|
|
Color r, g, b, w, scale;
|
|
ColorMatrix m;
|
|
|
|
videomixer_color_set (&r, rx, ry, 1.0);
|
|
videomixer_color_xyY_to_XYZ (&r);
|
|
videomixer_color_set (&g, gx, gy, 1.0);
|
|
videomixer_color_xyY_to_XYZ (&g);
|
|
videomixer_color_set (&b, bx, by, 1.0);
|
|
videomixer_color_xyY_to_XYZ (&b);
|
|
videomixer_color_set (&w, wx, wy, 1.0);
|
|
videomixer_color_xyY_to_XYZ (&w);
|
|
|
|
videomixer_color_matrix_set_identity (dst);
|
|
|
|
dst->m[0][0] = r.v[0];
|
|
dst->m[0][1] = r.v[1];
|
|
dst->m[0][2] = r.v[2];
|
|
dst->m[1][0] = g.v[0];
|
|
dst->m[1][1] = g.v[1];
|
|
dst->m[1][2] = g.v[2];
|
|
dst->m[2][0] = b.v[0];
|
|
dst->m[2][1] = b.v[1];
|
|
dst->m[2][2] = b.v[2];
|
|
|
|
videomixer_color_matrix_dump (dst);
|
|
videomixer_color_matrix_copy (&m, dst);
|
|
videomixer_color_matrix_invert (&m);
|
|
videomixer_color_matrix_dump (&m);
|
|
|
|
videomixer_color_matrix_transpose (&m);
|
|
videomixer_color_matrix_apply (&m, &scale, &w);
|
|
g_print ("%g %g %g\n", scale.v[0], scale.v[1], scale.v[2]);
|
|
|
|
dst->m[0][0] = r.v[0] * scale.v[0];
|
|
dst->m[0][1] = r.v[1] * scale.v[0];
|
|
dst->m[0][2] = r.v[2] * scale.v[0];
|
|
dst->m[1][0] = g.v[0] * scale.v[1];
|
|
dst->m[1][1] = g.v[1] * scale.v[1];
|
|
dst->m[1][2] = g.v[2] * scale.v[1];
|
|
dst->m[2][0] = b.v[0] * scale.v[2];
|
|
dst->m[2][1] = b.v[1] * scale.v[2];
|
|
dst->m[2][2] = b.v[2] * scale.v[2];
|
|
|
|
videomixer_color_matrix_transpose (dst);
|
|
videomixer_color_matrix_dump (dst);
|
|
|
|
videomixer_color_set (&scale, 1, 1, 1);
|
|
videomixer_color_matrix_apply (dst, &scale, &scale);
|
|
videomixer_color_XYZ_to_xyY (&scale);
|
|
g_print ("white %g %g %g\n", scale.v[0], scale.v[1], scale.v[2]);
|
|
|
|
}
|
|
|
|
void
|
|
videomixer_color_matrix_build_rgb_to_XYZ_601 (ColorMatrix * dst)
|
|
{
|
|
/* SMPTE C primaries, SMPTE 170M-2004 */
|
|
videomixer_color_matrix_build_XYZ (dst,
|
|
0.630, 0.340, 0.310, 0.595, 0.155, 0.070, 0.3127, 0.3290);
|
|
#if 0
|
|
/* NTSC 1953 primaries, SMPTE 170M-2004 */
|
|
videomixer_color_matrix_build_XYZ (dst,
|
|
0.67, 0.33, 0.21, 0.71, 0.14, 0.08, 0.3127, 0.3290);
|
|
#endif
|
|
}
|
|
|
|
void
|
|
videomixer_color_matrix_build_XYZ_to_rgb_709 (ColorMatrix * dst)
|
|
{
|
|
/* Rec. ITU-R BT.709-5 */
|
|
videomixer_color_matrix_build_XYZ (dst,
|
|
0.640, 0.330, 0.300, 0.600, 0.150, 0.060, 0.3127, 0.3290);
|
|
}
|
|
|
|
void
|
|
videomixer_color_matrix_build_XYZ_to_rgb_dell (ColorMatrix * dst)
|
|
{
|
|
/* Dell monitor */
|
|
#if 1
|
|
videomixer_color_matrix_build_XYZ (dst,
|
|
0.662, 0.329, 0.205, 0.683, 0.146, 0.077, 0.3135, 0.3290);
|
|
#endif
|
|
#if 0
|
|
videomixer_color_matrix_build_XYZ (dst,
|
|
0.630, 0.340, 0.310, 0.595, 0.155, 0.070, 0.3127, 0.3290);
|
|
#endif
|
|
videomixer_color_matrix_invert (dst);
|
|
}
|
|
|
|
void
|
|
videomixer_color_transfer_function_apply (Color * dest, Color * src)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
if (src->v[i] < 0.0812) {
|
|
dest->v[i] = src->v[i] / 4.500;
|
|
} else {
|
|
dest->v[i] = pow (src->v[i] + 0.099, 1 / 0.4500);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
videomixer_color_transfer_function_unapply (Color * dest, Color * src)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
if (src->v[i] < 0.0812 / 4.500) {
|
|
dest->v[i] = src->v[i] * 4.500;
|
|
} else {
|
|
dest->v[i] = pow (src->v[i], 0.4500) - 0.099;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
videomixer_color_gamut_clamp (Color * dest, Color * src)
|
|
{
|
|
dest->v[0] = CLAMP (src->v[0], 0.0, 1.0);
|
|
dest->v[1] = CLAMP (src->v[1], 0.0, 1.0);
|
|
dest->v[2] = CLAMP (src->v[2], 0.0, 1.0);
|
|
}
|
|
|
|
#if 0
|
|
static guint8 *
|
|
get_color_transform_table (void)
|
|
{
|
|
static guint8 *color_transform_table = NULL;
|
|
|
|
#if 1
|
|
if (!color_transform_table) {
|
|
ColorMatrix bt601_to_rgb;
|
|
ColorMatrix bt601_to_yuv;
|
|
ColorMatrix bt601_rgb_to_XYZ;
|
|
ColorMatrix dell_XYZ_to_rgb;
|
|
guint8 *table_y;
|
|
guint8 *table_u;
|
|
guint8 *table_v;
|
|
int y, u, v;
|
|
|
|
videomixer_color_matrix_build_yuv_to_rgb_601 (&bt601_to_rgb);
|
|
videomixer_color_matrix_build_rgb_to_yuv_601 (&bt601_to_yuv);
|
|
videomixer_color_matrix_build_rgb_to_XYZ_601 (&bt601_rgb_to_XYZ);
|
|
videomixer_color_matrix_build_XYZ_to_rgb_dell (&dell_XYZ_to_rgb);
|
|
|
|
color_transform_table = g_malloc (0x1000000 * 3);
|
|
|
|
table_y = COG_OFFSET (color_transform_table, 0 * 0x1000000);
|
|
table_u = COG_OFFSET (color_transform_table, 1 * 0x1000000);
|
|
table_v = COG_OFFSET (color_transform_table, 2 * 0x1000000);
|
|
|
|
for (y = 0; y < 256; y++) {
|
|
for (u = 0; u < 256; u++) {
|
|
for (v = 0; v < 256; v++) {
|
|
Color c;
|
|
|
|
c.v[0] = y;
|
|
c.v[1] = u;
|
|
c.v[2] = v;
|
|
videomixer_color_matrix_apply (&bt601_to_rgb, &c, &c);
|
|
color_gamut_clamp (&c, &c);
|
|
color_transfer_function_apply (&c, &c);
|
|
videomixer_color_matrix_apply (&bt601_rgb_to_XYZ, &c, &c);
|
|
videomixer_color_matrix_apply (&dell_XYZ_to_rgb, &c, &c);
|
|
color_transfer_function_unapply (&c, &c);
|
|
color_gamut_clamp (&c, &c);
|
|
videomixer_color_matrix_apply (&bt601_to_yuv, &c, &c);
|
|
|
|
table_y[(y << 16) | (u << 8) | (v)] = rint (c.v[0]);
|
|
table_u[(y << 16) | (u << 8) | (v)] = rint (c.v[1]);
|
|
table_v[(y << 16) | (u << 8) | (v)] = rint (c.v[2]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
#if 0
|
|
if (!color_transform_table) {
|
|
ColorMatrix bt709_to_bt601;
|
|
guint8 *table_y;
|
|
guint8 *table_u;
|
|
guint8 *table_v;
|
|
int y, u, v;
|
|
|
|
videomixer_color_matrix_build_bt709_to_bt601 (&bt709_to_bt601);
|
|
|
|
color_transform_table = g_malloc (0x1000000 * 3);
|
|
|
|
table_y = COG_OFFSET (color_transform_table, 0 * 0x1000000);
|
|
table_u = COG_OFFSET (color_transform_table, 1 * 0x1000000);
|
|
table_v = COG_OFFSET (color_transform_table, 2 * 0x1000000);
|
|
|
|
for (y = 0; y < 256; y++) {
|
|
for (u = 0; u < 256; u++) {
|
|
for (v = 0; v < 256; v++) {
|
|
Color c;
|
|
|
|
c.v[0] = y;
|
|
c.v[1] = u;
|
|
c.v[2] = v;
|
|
videomixer_color_matrix_apply (&bt709_to_bt601, &c, &c);
|
|
|
|
table_y[(y << 16) | (u << 8) | (v)] = rint (c.v[0]);
|
|
table_u[(y << 16) | (u << 8) | (v)] = rint (c.v[1]);
|
|
table_v[(y << 16) | (u << 8) | (v)] = rint (c.v[2]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
return color_transform_table;
|
|
}
|
|
#endif
|