virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-08-15 14:13:16 +02:00
Code Issues Releases Activity

dvbsubdec: fix division by zero in compute_default_clut

Browse Source 
This problem was introduced in commit
4b90dcb849.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
This commit is contained in:
Andreas Cadhalpun
2016-11-08 22:32:42 +01:00
parent 1e33035ee7
commit c82b8ef0e4
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
libavcodec/dvbsubdec.c
View File

@@ -810,7 +810,7 @@ static void compute_default_clut(AVSubtitleRect *rect, int w, int h)
list_inv[ i ] = bestv; list_inv[ i ] = bestv;
} }
count = i - 1; count = FFMAX(i - 1, 1);
for (i--; i>=0; i--) { for (i--; i>=0; i--) {
int v = i*255/count; int v = i*255/count;
AV_WN32(rect->data[1] + 4*list_inv[i], RGBA(v/2,v,v/2,v)); AV_WN32(rect->data[1] + 4*list_inv[i], RGBA(v/2,v,v/2,v));