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ac3: Check the array bound before dereferencing

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CC: libav-stable@libav.org

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Luca Barbato 2016-05-26 02:41:25 +02:00
parent a86aa16088
commit 5264e7ba21
1 changed files with 1 additions and 1 deletions
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libavcodec/ac3enc_template.c
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@ -260,7 +260,7 @@ static void apply_channel_coupling(AC3EncodeContext *s)
energy_cpl = energy[blk][CPL_CH][bnd];
energy_ch = energy[blk][ch][bnd];
blk1 = blk+1;
while (!s->blocks[blk1].new_cpl_coords[ch] && blk1 < s->num_blocks) {
while (blk1 < s->num_blocks && !s->blocks[blk1].new_cpl_coords[ch]) {
if (s->blocks[blk1].cpl_in_use) {
energy_cpl += energy[blk1][CPL_CH][bnd];
energy_ch += energy[blk1][ch][bnd];