mp3demux: fix off by 1 error

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

mp3demux: fix off by 1 error
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
f46185c2 · Michael Niedermayer · 3183c38a · f46185c2
Commit f46185c2 authored May 08, 2012 by Michael Niedermayer
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mp3dec.c libavformat/mp3dec.c +1 -1

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--- a/libavformat/mp3dec.c
+++ b/libavformat/mp3dec.c
@@ -183,7 +183,7 @@ static int mp3_read_packet(AVFormatContext *s, AVPacket *pkt)
        return AVERROR_EOF;
    }

-    if (ret > ID3v1_TAG_SIZE &&
+    if (ret >= ID3v1_TAG_SIZE &&
        memcmp(&pkt->data[ret - ID3v1_TAG_SIZE], "TAG", 3) == 0)
        ret -= ID3v1_TAG_SIZE;