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Check classbook value.

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11_vorbis_residue_book_index.patch by chrome.

Originally committed as revision 19989 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Google Chrome 2009-09-23 12:02:31 +00:00 committed by Michael Niedermayer
parent 45a014d75e
commit 79a4258141
1 changed files with 4 additions and 0 deletions
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4
libavcodec/vorbis_dec.c
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@ -630,6 +630,10 @@ static int vorbis_parse_setup_hdr_residues(vorbis_context *vc){
res_setup->partition_size=get_bits(gb, 24)+1;
res_setup->classifications=get_bits(gb, 6)+1;
res_setup->classbook=get_bits(gb, 8);
if (res_setup->classbook>=vc->codebook_count) {
av_log(vc->avccontext, AV_LOG_ERROR, "classbook value %d out of range. \n", res_setup->classbook);
return 1;
}
AV_DEBUG(" begin %d end %d part.size %d classif.s %d classbook %d \n", res_setup->begin, res_setup->end, res_setup->partition_size,
res_setup->classifications, res_setup->classbook);