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avfilter/paletteuse: use AV_QSORT()

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See previous commit for a rationale.
This commit is contained in:
Clément Bœsch 2015-02-26 11:31:09 +01:00
parent 321de03492
commit 4629993d99
1 changed files with 4 additions and 1 deletions
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5
libavfilter/vf_paletteuse.c
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@ -25,6 +25,7 @@
#include "libavutil/bprint.h"
#include "libavutil/opt.h"
#include "libavutil/qsort.h"
#include "dualinput.h"
#include "avfilter.h"
@ -592,6 +593,7 @@ static int get_next_color(const uint8_t *color_used, const uint32_t *palette,
unsigned nb_color = 0;
struct color_rect ranges;
struct color tmp_pal[256];
cmp_func cmpf;
ranges.min[0] = ranges.min[1] = ranges.min[2] = 0xff;
ranges.max[0] = ranges.max[1] = ranges.max[2] = 0x00;
@ -631,10 +633,11 @@ static int get_next_color(const uint8_t *color_used, const uint32_t *palette,
if (wr >= wg && wr >= wb) longest = 0;
if (wg >= wr && wg >= wb) longest = 1;
if (wb >= wr && wb >= wg) longest = 2;
cmpf = cmp_funcs[longest];
*component = longest;
/* sort along this axis to get median */
qsort(tmp_pal, nb_color, sizeof(*tmp_pal), cmp_funcs[longest]);
AV_QSORT(tmp_pal, nb_color, struct color, cmpf);
return tmp_pal[nb_color >> 1].pal_id;
}