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avfilter/vf_histogram: add more color modes

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This commit is contained in:
Paul B Mahol 2021-10-27 11:23:37 +02:00
parent 97b5b9dbea
commit 148c030395
2 changed files with 55 additions and 2 deletions
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3
doc/filters.texi
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@ -13515,6 +13515,9 @@ It accepts the following values:
@item coloronblack
@item coloronwhite
@item colorongray
@item blackoncolor
@item whiteoncolor
@item grayoncolor
@end table
Default is @code{whiteonblack}.
@end table

54
libavfilter/vf_histogram.c
View File

@ -85,8 +85,8 @@ static const AVOption histogram_options[] = {
{ "f", "set foreground opacity", OFFSET(fgopacity), AV_OPT_TYPE_FLOAT, {.dbl=0.7}, 0, 1, FLAGS},
{ "bgopacity", "set background opacity", OFFSET(bgopacity), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS},
{ "b", "set background opacity", OFFSET(bgopacity), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS},
{ "colors_mode", "set colors mode", OFFSET(colors_mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 6, FLAGS, "colors_mode"},
{ "l", "set colors mode", OFFSET(colors_mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 6, FLAGS, "colors_mode"},
{ "colors_mode", "set colors mode", OFFSET(colors_mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 9, FLAGS, "colors_mode"},
{ "l", "set colors mode", OFFSET(colors_mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 9, FLAGS, "colors_mode"},
{ "whiteonblack", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "colors_mode" },
{ "blackonwhite", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "colors_mode" },
{ "whiteongray", NULL, 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, FLAGS, "colors_mode" },
@ -94,6 +94,9 @@ static const AVOption histogram_options[] = {
{ "coloronblack", NULL, 0, AV_OPT_TYPE_CONST, {.i64=4}, 0, 0, FLAGS, "colors_mode" },
{ "coloronwhite", NULL, 0, AV_OPT_TYPE_CONST, {.i64=5}, 0, 0, FLAGS, "colors_mode" },
{ "colorongray" , NULL, 0, AV_OPT_TYPE_CONST, {.i64=6}, 0, 0, FLAGS, "colors_mode" },
{ "blackoncolor", NULL, 0, AV_OPT_TYPE_CONST, {.i64=7}, 0, 0, FLAGS, "colors_mode" },
{ "whiteoncolor", NULL, 0, AV_OPT_TYPE_CONST, {.i64=8}, 0, 0, FLAGS, "colors_mode" },
{ "grayoncolor" , NULL, 0, AV_OPT_TYPE_CONST, {.i64=9}, 0, 0, FLAGS, "colors_mode" },
{ NULL }
};
@ -312,6 +315,41 @@ static int config_input(AVFilterLink *inlink)
memcpy(s->fg_color[1], blue_yuva_color, 4);
memcpy(s->fg_color[2], red_yuva_color, 4);
}
} else if (s->colors_mode == 7) {
for (int i = 0; i < 4; i++)
for (int j = 0; j < 4; j++)
FFSWAP(uint8_t, s->fg_color[i][j], s->bg_color[i][j]);
if (rgb) {
memcpy(s->bg_color[0], red_gbrp_color, 4);
memcpy(s->bg_color[1], green_gbrp_color, 4);
memcpy(s->bg_color[2], blue_gbrp_color, 4);
} else {
memcpy(s->bg_color[0], green_yuva_color, 4);
memcpy(s->bg_color[1], blue_yuva_color, 4);
memcpy(s->bg_color[2], red_yuva_color, 4);
}
} else if (s->colors_mode == 8) {
if (rgb) {
memcpy(s->bg_color[0], red_gbrp_color, 4);
memcpy(s->bg_color[1], green_gbrp_color, 4);
memcpy(s->bg_color[2], blue_gbrp_color, 4);
} else {
memcpy(s->bg_color[0], igreen_yuva_color,4);
memcpy(s->bg_color[1], blue_yuva_color, 4);
memcpy(s->bg_color[2], red_yuva_color, 4);
}
} else if (s->colors_mode == 9) {
for (int i = 0; i < 4; i++)
memcpy(s->fg_color[i], gray_color, 4);
if (rgb) {
memcpy(s->bg_color[0], red_gbrp_color, 4);
memcpy(s->bg_color[1], green_gbrp_color, 4);
memcpy(s->bg_color[2], blue_gbrp_color, 4);
} else {
memcpy(s->bg_color[0], igreen_yuva_color,4);
memcpy(s->bg_color[1], blue_yuva_color, 4);
memcpy(s->bg_color[2], red_yuva_color, 4);
}
}
}
@ -517,6 +555,12 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
out->data[p][(j + starty) * out->linesize[p] + startx + i] = 255;
}
}
if (s->display_mode) {
for (j = col_height - 1; j >= 0; j--) {
for (l = 0; l < s->dncomp; l++)
out->data[l][(j + starty) * out->linesize[l] + startx + i] = s->bg_color[p][l];
}
}
for (j = s->level_height + s->scale_height - 1; j >= s->level_height; j--)
for (l = 0; l < s->dncomp; l++)
out->data[l][(j + starty) * out->linesize[l] + startx + i] = p == l ? i : mid;
@ -531,6 +575,12 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
AV_WN16(out->data[p] + (j + starty) * out->linesize[p] + startx * 2 + i * 2, 255 * mult);
}
}
if (s->display_mode) {
for (j = col_height - 1; j >= 0; j--) {
for (l = 0; l < s->dncomp; l++)
AV_WN16(out->data[l] + (j + starty) * out->linesize[l] + startx * 2 + i * 2, s->bg_color[p][l] * mult);
}
}
for (j = s->level_height + s->scale_height - 1; j >= s->level_height; j--)
for (l = 0; l < s->dncomp; l++)
AV_WN16(out->data[l] + (j + starty) * out->linesize[l] + startx * 2 + i * 2, p == l ? i : mid * mult);