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prevent crash when dba params are invalid

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Originally committed as revision 13653 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Justin Ruggles 2008-06-03 23:34:26 +00:00
parent d326dd9797
commit 31bc6b4549
1 changed files with 2 additions and 2 deletions
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4
libavcodec/ac3.c
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@ -157,8 +157,8 @@ void ff_ac3_bit_alloc_calc_mask(AC3BitAllocParameters *s, int16_t *band_psd,
if (dba_mode == DBA_REUSE || dba_mode == DBA_NEW) {
int band, seg, delta;
band = 0;
for (seg = 0; seg < dba_nsegs; seg++) {
band += dba_offsets[seg];
for (seg = 0; seg < FFMIN(8, dba_nsegs); seg++) {
band = FFMIN(49, band + dba_offsets[seg]);
if (dba_values[seg] >= 4) {
delta = (dba_values[seg] - 3) << 7;
} else {