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avformat/mp3dec: improve detection of mp3s with huge id3 tags 

When a id3 tag is larger than the amount of space we will probe
give it a score similar to what a .mp3 extension would have given it

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-08-26 00:57:35 +02:00
parent a9d1a7c79b
commit 8d679bc7e6
1 changed files with 1 additions and 1 deletions
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libavformat/mp3dec.c
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@ -85,7 +85,7 @@ static int mp3_read_probe(AVProbeData *p)
else if(max_frames>200)return AVPROBE_SCORE_EXTENSION;
else if(max_frames>=4) return AVPROBE_SCORE_EXTENSION / 2;
else if(ff_id3v2_match(buf0, ID3v2_DEFAULT_MAGIC) && 2*ff_id3v2_tag_len(buf0) >= p->buf_size)
return AVPROBE_SCORE_EXTENSION / 4;
return p->buf_size < PROBE_BUF_MAX ? AVPROBE_SCORE_EXTENSION / 4 : AVPROBE_SCORE_EXTENSION - 2;
else if(max_frames>=1) return 1;
else return 0;
//mpegps_mp3_unrecognized_format.mpg has max_frames=3