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avcodec/motion_est_template: replace qsort with AV_QSORT

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This code is in a performance critical section. AV_QSORT is
substantially faster due to the inlining of the comparison callback.
Thus, the increase in performance is worth the increase in binary size.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
This commit is contained in:
Ganesh Ajjanagadde 2015-10-27 22:46:18 -04:00
parent fab1562a50
commit 6dc0db6634
1 changed files with 2 additions and 1 deletions
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3
libavcodec/motion_est_template.c
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@ -24,6 +24,7 @@
* Motion estimation template.
*/
#include "libavutil/qsort.h"
#include "mpegvideo.h"
//Let us hope gcc will remove the unused vars ...(gcc 3.2.2 seems to do it ...)
@ -723,7 +724,7 @@ static int sab_diamond_search(MpegEncContext * s, int *best, int dmin,
j++;
}
qsort(minima, j, sizeof(Minima), minima_cmp);
AV_QSORT(minima, j, Minima, minima_cmp);
for(; j<minima_count; j++){
minima[j].height=256*256*256*64;