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matroskadec: Fix null pointer exception on corrupted input.

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-03-16 05:28:18 +01:00
parent b89f94077d
commit d9fe6b926c
1 changed files with 1 additions and 1 deletions
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2
libavformat/matroskadec.c
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@ -1377,7 +1377,7 @@ static int matroska_read_header(AVFormatContext *s)
/* First read the EBML header. */
if (ebml_parse(matroska, ebml_syntax, &ebml)
|| ebml.version > EBML_VERSION || ebml.max_size > sizeof(uint64_t)
|| ebml.id_length > sizeof(uint32_t) || ebml.doctype_version > 3) {
|| ebml.id_length > sizeof(uint32_t) || ebml.doctype_version > 3 || !ebml.doctype) {
av_log(matroska->ctx, AV_LOG_ERROR,
"EBML header using unsupported features\n"
"(EBML version %"PRIu64", doctype %s, doc version %"PRIu64")\n",