[FFmpeg-trac] #3327(avformat:new): libavformat fails to detect some mp3 files reliably
FFmpeg
trac at avcodec.org
Sat Jan 25 23:51:18 CET 2014
#3327: libavformat fails to detect some mp3 files reliably
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Reporter: gjdfgh | Owner:
Type: defect | Status: new
Priority: normal | Component: avformat
Version: git-master | Resolution:
Keywords: mp3 | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by gjdfgh):
The first test file I sent isn't very good: it has a broken id3 tag (not
recognized by the id3v2 tool) followed by large zero padding.
Uploaded another file (issue3327_2.mp3) which has a large (this time
valid) ID3 tag at the beginning.
One could argue that these files are hard to detect, because the start of
the files don't even contain a single mp3 frame, and possibly go over the
normal maximum probe size, but even "ffprobe -probesize 10485760
issue3327_2.mp3" returns a score of 24.
Note that I think it should return at least AVPROBE_SCORE_EXTENSION if the
file extension matches (which it currently doesn't).
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Ticket URL: <https://trac.ffmpeg.org/ticket/3327#comment:3>
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