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-rw-r--r--libavformat/wtvenc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/wtvenc.c b/libavformat/wtvenc.c
index 887ee729f1..d1c446ccb0 100644
--- a/libavformat/wtvenc.c
+++ b/libavformat/wtvenc.c
@@ -532,7 +532,7 @@ static void write_fat(AVIOContext *pb, int start_sector, int nb_sectors, int shi
avio_wl32(pb, start_sector + (i << shift));
}
// pad left sector pointer size
- write_pad(pb, WTV_SECTOR_SIZE - (nb_sectors << 2));
+ write_pad(pb, WTV_SECTOR_SIZE - ((nb_sectors << 2) % WTV_SECTOR_SIZE));
}
static int write_fat_sector(AVFormatContext *s, int64_t start_pos, int nb_sectors, int sector_bits, int depth)