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avformat/utils: limit probe score in the id3 case only if there is a chance that data after the id3 tag will become available

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Fixes ticket3327 (sample.mp3)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-05-12 20:41:32 +02:00
parent ab21acecc7
commit d05588e21e
1 changed files with 3 additions and 1 deletions
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4
libavformat/utils.c
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@ -251,6 +251,8 @@ AVInputFormat *av_probe_input_format3(AVProbeData *pd, int is_opened,
if (lpd.buf_size > id3len + 16) {
lpd.buf += id3len;
lpd.buf_size -= id3len;
} else if (id3len >= PROBE_BUF_MAX) {
nodat = 2;
} else
nodat = 1;
}
@ -274,7 +276,7 @@ AVInputFormat *av_probe_input_format3(AVProbeData *pd, int is_opened,
} else if (score == score_max)
fmt = NULL;
}
if (nodat)
if (nodat == 1)
score_max = FFMIN(AVPROBE_SCORE_EXTENSION / 2 - 1, score_max);
*score_ret = score_max;