Traneptora/FFmpeg
1
Fork 0
forked from FFmpeg/FFmpeg
Code Pull requests Activity

Merge commit 'db347280eb3746d7b70888db97f1efe5f06f5624'

Browse source 
* commit 'db347280eb3746d7b70888db97f1efe5f06f5624':
  vorbis: fallback to normal division instead of crashing

Conflicts:
	libavcodec/vorbisdec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-05-20 12:02:18 +02:00
commit c5e11e897a
1 changed files with 16 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

22
libavcodec/vorbisdec.c
View file

@ -1330,14 +1330,24 @@ static av_always_inline int setup_classifs(vorbis_context *vc,
av_dlog(NULL, "Classword: %u\n", temp); av_dlog(NULL, "Classword: %u\n", temp);
av_assert0(vr->classifications > 1 && temp <= 65536); //needed for inverse[] av_assert0(vr->classifications > 1); //needed for inverse[]
for (i = partition_count + c_p_c - 1; i >= partition_count; i--) { if (temp <= 65536) {
temp2 = (((uint64_t)temp) * inverse_class) >> 32; for (i = partition_count + c_p_c - 1; i >= partition_count; i--) {
temp2 = (((uint64_t)temp) * inverse_class) >> 32;
if (i < vr->ptns_to_read) if (i < vr->ptns_to_read)
vr->classifs[p + i] = temp - temp2 * vr->classifications; vr->classifs[p + i] = temp - temp2 * vr->classifications;
temp = temp2; temp = temp2;
}
} else {
for (i = partition_count + c_p_c - 1; i >= partition_count; i--) {
temp2 = temp / vr->classifications;
if (i < vr->ptns_to_read)
vr->classifs[p + i] = temp - temp2 * vr->classifications;
temp = temp2;
}
} }
} }
p += vr->ptns_to_read; p += vr->ptns_to_read;