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avformat/mp3dec: require 90% of a file to be mp3 if only 1 mp3 frame is found in sequence

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This eliminates several low score detections of non mp3 files

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2018-05-12 18:33:29 +02:00
parent 81b3e7c9c3
commit cadf7a7f39
1 changed files with 1 additions and 1 deletions
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libavformat/mp3dec.c
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@ -112,7 +112,7 @@ static int mp3_read_probe(AVProbeData *p)
else if(ff_id3v2_match(buf0, ID3v2_DEFAULT_MAGIC) && 2*ff_id3v2_tag_len(buf0) >= p->buf_size)
return p->buf_size < PROBE_BUF_MAX ? AVPROBE_SCORE_EXTENSION / 4 : AVPROBE_SCORE_EXTENSION - 2;
else if(first_frames > 1 && whole_used) return 5;
else if(max_frames>=1 && p->buf_size < 2*max_framesizes) return 1;
else if(max_frames>=1 && p->buf_size < 10*max_framesizes) return 1;
else return 0;
//mpegps_mp3_unrecognized_format.mpg has max_frames=3
}