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flvdec: Add comment about the 5 second threshold 

Idea-by: Reimar
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-12-30 20:28:47 +01:00
parent ba10207bbe
commit bace181b48
1 changed files with 1 additions and 1 deletions
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2
libavformat/flvdec.c
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@ -196,7 +196,7 @@ static int parse_keyframes_index(AVFormatContext *s, AVIOContext *ioc, AVStream
size1 = avio_rb24(ioc);
dts = avio_rb24(ioc);
dts |= avio_r8(ioc) << 24;
if (size0 > filepositions[1] || FFABS(dts - times[1]*1000)>5000)
if (size0 > filepositions[1] || FFABS(dts - times[1]*1000)>5000/*arbitraray threshold to detect invalid index*/)
goto invalid;
for(i = 0; i < timeslen; i++)
av_add_index_entry(vstream, filepositions[i], times[i]*1000, 0, 0, AVINDEX_KEYFRAME);