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mov: abort on EOF in ff_mov_read_chan

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Otherwise the loop can take a lot of time if num_descr is very large.

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
(cherry picked from commit a5718863da)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Andreas Cadhalpun 2015-05-23 23:32:12 +02:00 committed by Michael Niedermayer
parent 22349b9f7d
commit cd83ff5d4c
1 changed files with 5 additions and 0 deletions
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5
libavformat/mov_chan.c
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@ -566,6 +566,11 @@ int ff_mov_read_chan(AVFormatContext *s, AVIOContext *pb, AVStream *st,
label_mask = 0;
for (i = 0; i < num_descr; i++) {
uint32_t label;
if (pb->eof_reached) {
av_log(s, AV_LOG_ERROR,
"reached EOF while reading channel layout\n");
return AVERROR_INVALIDDATA;
}
label = avio_rb32(pb); // mChannelLabel
avio_rb32(pb); // mChannelFlags
avio_rl32(pb); // mCoordinates[0]