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提交 d43a27ab 编写于 作者: P Paul B Mahol
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avfilter/vf_pseudocolor: allow more advanced presets

上级 50dd020f
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Showing with 139 addition and 44 deletion
doc/filters.texi
浏览文件 @ d43a27ab
......@@ -16224,6 +16224,8 @@ Available LUTs:
@item viridis
@item turbo
@item cividis
@item range1
@item range2
@end table
@end table
......
libavfilter/vf_pseudocolor.c
浏览文件 @ d43a27ab
......@@ -59,48 +59,98 @@ enum var_name {
VAR_VARS_NB
};
enum ColorMaps {
enum Curves {
MAGMA,
INFERNO,
PLASMA,
VIRIDIS,
TURBO,
CIVIDIS,
NB_CMAPS,
NB_CURVES,
};
static const double presets[][3][8] =
enum Presets {
PRESET_MAGMA,
PRESET_INFERNO,
PRESET_PLASMA,
PRESET_VIRIDIS,
PRESET_TURBO,
PRESET_CIVIDIS,
PRESET_RANGE1,
PRESET_RANGE2,
NB_PRESETS,
};
typedef struct Curve {
double coef[3][8];
} Curve;
typedef struct Fill {
float fill[3];
} Fill;
typedef struct Range {
int start, end;
} Range;
typedef struct Preset {
int nb_segments;
const Range *ranges;
const Curve *curves;
const Fill *fills;
} Preset;
static const Range full_range = {0, 256};
static const Range spec1_range[] = {{0, 16}, {16, 236}, {236, 256}};
static const Range spec2_range[] = {{0, 16}, {16, 22}, {22, 226}, {226, 236}, {236, 256}};
static const Fill spec1_fills[] = {{0.5f, 0.f, .5f}, {-1.f, -1.f, -1.f}, {1.f, 0.f, 0.f}};
static const Fill spec2_fills[] = {{0.5f, 0.f, .5f}, {0.f, 1.f, 1.f}, {-1.f, -1.f, -1.f}, {1.f, 1.f, 0.f}, {1.f, 0.f, 0.f}};
static const Curve curves[] =
{
[MAGMA] = {
[MAGMA] = {{
{-7.5631093e-16, 7.4289183e-13, -2.8525484e-10, 5.4446085e-08, -5.5596238e-06, 3.0569325e-04, -2.3137421e-03, 1.2152095e-02 },
{ 1.3217636e-15, -1.2214648e-12, 4.4319712e-10, -8.0197993e-08, 7.6598370e-06, -3.6523704e-04, 8.4836670e-03, -2.5536888e-02 },
{-1.1446568e-15, 1.0013446e-12, -3.5651575e-10, 6.6775016e-08, -6.7120346e-06, 2.7346619e-04, 4.7969657e-03, 1.1971441e-02 },
},
[INFERNO] = {
}},
[INFERNO] = {{
{-3.9848859e-18, 9.4821649e-14, -6.7371977e-11, 1.8469937e-08, -2.5359307e-06, 1.7959053e-04, 3.9782564e-04, 2.8845935e-04 },
{ 6.8408539e-16, -6.5499979e-13, 2.4562526e-10, -4.5989298e-08, 4.5723324e-06, -2.2111913e-04, 5.2023164e-03, -1.1226064e-02 },
{-2.9921470e-15, 2.5864165e-12, -8.7403799e-10, 1.4713388e-07, -1.2701505e-05, 4.5159935e-04, 3.1087989e-03, 1.9122831e-02 },
},
[PLASMA] = {
}},
[PLASMA] = {{
{ 3.6196089e-16, -3.3623041e-13, 1.2324010e-10, -2.2769060e-08, 2.2297792e-06, -1.2567829e-04, 9.9791629e-03, 5.7247918e-02 },
{ 5.0262888e-16, -5.3193896e-13, 2.2451715e-10, -4.7529623e-08, 5.1374873e-06, -2.3260136e-04, 3.1502825e-03, 1.5362491e-02 },
{-1.7782261e-16, 2.2487839e-13, -1.0610236e-10, 2.4112644e-08, -2.6331623e-06, 8.9499751e-05, 2.1386328e-03, 5.3824268e-01 },
},
[VIRIDIS] = {
}},
[VIRIDIS] = {{
{ 9.4850045e-16, -8.6629383e-13, 3.0310944e-10, -5.1340396e-08, 4.6024275e-06, -2.2744239e-04, 4.5559993e-03, 2.5662350e-01 },
{ 9.6461041e-17, -6.9209477e-14, 1.7625397e-11, -2.0229773e-09, 1.4900110e-07, -1.9315187e-05, 5.8967339e-03, 3.9544827e-03 },
{ 5.1785449e-16, -3.6663004e-13, 1.0249990e-10, -1.5431998e-08, 1.5007941e-06, -1.2001502e-04, 7.6951526e-03, 3.2292815e-01 },
},
[TURBO] = {
}},
[TURBO] = {{
{-4.3683890e-15, 3.7020347e-12, -1.1712592e-09, 1.6401790e-07, -8.6842919e-06, -1.8542465e-06, 8.4485325e-03, 1.6267077e-01 },
{-4.0011069e-16, 2.7861423e-13, -6.3388921e-11, 5.8872238e-09, -5.4466522e-07, 1.8037114e-05, 1.0599869e-02, 7.6914696e-02 },
{-2.8242609e-15, 2.9234108e-12, -1.1726546e-09, 2.2552115e-07, -2.0059387e-05, 5.0595552e-04, 1.7714932e-02, 2.7271836e-01 },
},
[CIVIDIS] = {
}},
[CIVIDIS] = {{
{-9.5484131e-16, 9.6988184e-13, -4.0058766e-10, 8.5743924e-08, -9.9644797e-06, 5.9197908e-04, -1.0361579e-02, 3.3164429e-02 },
{ 1.2731941e-17, -9.4238449e-15, 2.2808841e-12, -1.1548296e-10, -2.3888913e-08, 3.8986680e-06, 2.5879330e-03, 1.2769733e-01 },
{ 4.6004608e-16, -5.0686849e-13, 2.2753449e-10, -5.3074099e-08, 6.7196096e-06, -4.4120020e-04, 1.3435551e-02, 2.8293355e-01 },
},
}},
};
static const Preset presets[] =
{
[PRESET_MAGMA] = { 1, &full_range, &curves[MAGMA], NULL },
[PRESET_INFERNO] = { 1, &full_range, &curves[INFERNO], NULL },
[PRESET_PLASMA] = { 1, &full_range, &curves[PLASMA], NULL },
[PRESET_VIRIDIS] = { 1, &full_range, &curves[VIRIDIS], NULL },
[PRESET_TURBO] = { 1, &full_range, &curves[TURBO], NULL },
[PRESET_CIVIDIS] = { 1, &full_range, &curves[CIVIDIS], NULL },
[PRESET_RANGE1] = { 3, spec1_range, NULL, spec1_fills },
[PRESET_RANGE2] = { 5, spec2_range, NULL, spec2_fills },
};
typedef struct PseudoColorContext {
......@@ -135,14 +185,16 @@ static const AVOption pseudocolor_options[] = {
{ "c2", "set component #2 expression", OFFSET(comp_expr_str[2]), AV_OPT_TYPE_STRING, {.str="val"}, .flags = FLAGS },
{ "c3", "set component #3 expression", OFFSET(comp_expr_str[3]), AV_OPT_TYPE_STRING, {.str="val"}, .flags = FLAGS },
{ "i", "set component as base", OFFSET(index), AV_OPT_TYPE_INT, {.i64=0}, 0, 3, .flags = FLAGS },
{ "p", "set preset", OFFSET(preset), AV_OPT_TYPE_INT, {.i64=-1},-1,NB_CMAPS-1, .flags = FLAGS, "preset" },
{ "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64=-1},.flags = FLAGS, "preset" },
{ "magma", NULL, 0, AV_OPT_TYPE_CONST, {.i64=MAGMA}, .flags = FLAGS, "preset" },
{ "inferno", NULL, 0, AV_OPT_TYPE_CONST, {.i64=INFERNO}, .flags = FLAGS, "preset" },
{ "plasma", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PLASMA}, .flags = FLAGS, "preset" },
{ "viridis", NULL, 0, AV_OPT_TYPE_CONST, {.i64=VIRIDIS}, .flags = FLAGS, "preset" },
{ "turbo", NULL, 0, AV_OPT_TYPE_CONST, {.i64=TURBO}, .flags = FLAGS, "preset" },
{ "cividis", NULL, 0, AV_OPT_TYPE_CONST, {.i64=CIVIDIS}, .flags = FLAGS, "preset" },
{ "p", "set preset", OFFSET(preset), AV_OPT_TYPE_INT, {.i64=-1},-1, NB_PRESETS-1, .flags = FLAGS, "preset" },
{ "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64=-1}, .flags = FLAGS, "preset" },
{ "magma", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_MAGMA}, .flags = FLAGS, "preset" },
{ "inferno", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_INFERNO}, .flags = FLAGS, "preset" },
{ "plasma", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_PLASMA}, .flags = FLAGS, "preset" },
{ "viridis", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_VIRIDIS}, .flags = FLAGS, "preset" },
{ "turbo", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_TURBO}, .flags = FLAGS, "preset" },
{ "cividis", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_CIVIDIS}, .flags = FLAGS, "preset" },
{ "range1", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_RANGE1}, .flags = FLAGS, "preset" },
{ "range2", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_RANGE2}, .flags = FLAGS, "preset" },
{ NULL }
};
......@@ -534,28 +586,69 @@ static int config_input(AVFilterLink *inlink)
}
if (s->preset >= 0) {
for (int i = 0; i < 256; i++) {
for (int j = 0; j < factor; j++) {
const double lf = j / (double)factor;
double r, g, b;
g = poly_eval(presets[s->preset][1], i + lf) * s->max;
b = poly_eval(presets[s->preset][2], i + lf) * s->max;
r = poly_eval(presets[s->preset][0], i + lf) * s->max;
if (!rgb) {
double y = RGB_TO_Y_BT709(r, g, b);
double u = RGB_TO_U_BT709(r, g, b, s->max);
double v = RGB_TO_V_BT709(r, g, b, s->max);
r = v;
g = y;
b = u;
int nb_segments = presets[s->preset].nb_segments;
for (int seg = 0; seg < nb_segments; seg++) {
int start = presets[s->preset].ranges[seg].start;
int end = presets[s->preset].ranges[seg].end;
for (int i = start; i < end; i++) {
if (!presets[s->preset].curves) {
const Fill fill = presets[s->preset].fills[seg];
for (int j = 0; j < factor; j++) {
double r, g, b;
g = fill.fill[1];
b = fill.fill[2];
r = fill.fill[0];
if (g >= 0.f && b >= 0.f && r >= 0.f) {
g *= s->max;
b *= s->max;
r *= s->max;
if (!rgb) {
double y = RGB_TO_Y_BT709(r, g, b);
double u = RGB_TO_U_BT709(r, g, b, s->max);
double v = RGB_TO_V_BT709(r, g, b, s->max);
r = v;
g = y;
b = u;
}
}
s->lut[0][i*factor+j] = g;
s->lut[1][i*factor+j] = b;
s->lut[2][i*factor+j] = r;
}
} else {
const Curve curve = presets[s->preset].curves[seg];
for (int j = 0; j < factor; j++) {
const double lf = j / (double)factor;
double r, g, b;
g = poly_eval(curve.coef[1], i + lf) * s->max;
b = poly_eval(curve.coef[2], i + lf) * s->max;
r = poly_eval(curve.coef[0], i + lf) * s->max;
if (!rgb) {
double y = RGB_TO_Y_BT709(r, g, b);
double u = RGB_TO_U_BT709(r, g, b, s->max);
double v = RGB_TO_V_BT709(r, g, b, s->max);
r = v;
g = y;
b = u;
}
s->lut[0][i*factor+j] = g;
s->lut[1][i*factor+j] = b;
s->lut[2][i*factor+j] = r;
}
}
s->lut[0][i*factor+j] = g;
s->lut[1][i*factor+j] = b;
s->lut[2][i*factor+j] = r;
}
}
}
......
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