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FS-10050: [core] chromakey

This commit is contained in:
Anthony Minessale 2017-03-03 10:53:14 -06:00
parent 21a405350f
commit 2c0f5cfcbb
1 changed files with 39 additions and 23 deletions
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62
src/switch_core_video.c
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@ -1026,6 +1026,39 @@ static inline int switch_color_distance_cheap(switch_rgb_color_t *c1, switch_rgb
return (3*r) + (4*g) + (3*b);
}
static inline void get_dom(switch_shade_t autocolor, switch_rgb_color_t *color, int *domP, int *aP, int *bP)
{
int dom, a, b;
switch(autocolor) {
case SWITCH_SHADE_RED:
dom = color->r;
a = color->g;
b = color->b;
break;
case SWITCH_SHADE_GREEN:
dom = color->g;
a = color->r;
b = color->b;
break;
case SWITCH_SHADE_BLUE:
dom = color->b;
a = color->r;
b = color->g;
break;
default:
dom = 0;
a = 0;
b = 0;
break;
}
*domP = dom;
*aP = a;
*bP = b;
}
SWITCH_DECLARE(void) switch_chromakey_process(switch_chromakey_t *ck, switch_image_t *img)
{
uint8_t *pixel, *last_pixel = NULL, *cache_pixel = NULL, *end_pixel = NULL;
@ -1106,28 +1139,7 @@ SWITCH_DECLARE(void) switch_chromakey_process(switch_chromakey_t *ck, switch_ima
if (ck->autocolor) {
int dom, a, b;
switch(ck->autocolor) {
case SWITCH_SHADE_RED:
dom = color->r;
a = color->g;
b = color->b;
break;
case SWITCH_SHADE_GREEN:
dom = color->g;
a = color->r;
b = color->b;
break;
case SWITCH_SHADE_BLUE:
dom = color->b;
a = color->r;
b = color->g;
break;
default:
dom = 0;
a = 0;
b = 0;
break;
}
get_dom(ck->autocolor, color, &dom, &a, &b);
if (ck->autocolor != SWITCH_SHADE_AUTO) {
//printf("WTF %d\n", ck->dft_thresh);
@ -1187,6 +1199,7 @@ SWITCH_DECLARE(void) switch_chromakey_process(switch_chromakey_t *ck, switch_ima
if (ck->color_count > 1000) {
switch_rgb_color_t *last_color = NULL;
int skip = 0;
int dom, a, b;
ck->auto_color.r = ck->rr / ck->color_count;
ck->auto_color.g = ck->gg / ck->color_count;
@ -1197,7 +1210,10 @@ SWITCH_DECLARE(void) switch_chromakey_process(switch_chromakey_t *ck, switch_ima
for (i = 0; i < ck->mask_len; i++) {
last_color = &ck->mask[i];
if (switch_color_distance_literal(&ck->auto_color, last_color, 10) || !switch_color_dom_cmp(&ck->auto_color, last_color)) {
get_dom(ck->autocolor, &ck->auto_color, &dom, &a, &b);
if (switch_color_distance_literal(&ck->auto_color, last_color, 10) || !switch_color_dom_cmp(&ck->auto_color, last_color) || (dom - a < 50 || dom - b < 50)) {
skip = 1;
break;
}