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When picking a "high utility centroid" do not pick one 

that has no corresponding points. Not only it is the
worst possible pick, but also the code was written
without this case in mind.

Originally committed as revision 14341 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak 2008-07-23 03:55:37 +00:00
parent 5916af1954
commit 6bf8b04764
1 changed files with 4 additions and 1 deletions
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5
libavcodec/elbg.c
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@ -105,9 +105,12 @@ static int get_high_utility_cell(elbg_data *elbg)
{
int i=0;
/* Using linear search, do binary if it ever turns to be speed critical */
int r = av_random(elbg->rand_state)%elbg->utility_inc[elbg->numCB-1];
int r = av_random(elbg->rand_state)%(elbg->utility_inc[elbg->numCB-1]-1) + 1;
while (elbg->utility_inc[i] < r)
i++;
assert(!elbg->cells[i]);
return i;
}