- Status Closed
- Percent Complete
- Task Type Bugs
- Category Codecs
- Assigned To No-one
- Operating System All players
- Severity Low
- Priority Very Low
- Reported Version Release 3.8
- Due in Version Undecided
-
Due Date
Undecided
- Votes
- Private
FS#12046 - MP4 parser robustness: error on certain files
http://184.168.139.11/non_working.m4a
mp4.c errors out with “MP4 metadata error. errno 22, samples 9507840, frequency 44100. filesize 0”.
Plays in other software without error.
Closed by Buschel
2011-05-02 07:19
Reason for closing: Not a Bug
Additional comments about closing: Warning: Undefined array key "typography" in /home/rockbox/flyspray/plugins/dokuwiki/inc/parserutils.php on line 371 Warning: Undefined array key "camelcase" in /home/rockbox/flyspray/plugins/dokuwiki/inc/parserutils.php on line 407
2011-05-02 07:19
Reason for closing: Not a Bug
Additional comments about closing: Warning: Undefined array key "typography" in /home/rockbox/flyspray/plugins/dokuwiki/inc/parserutils.php on line 371 Warning: Undefined array key "camelcase" in /home/rockbox/flyspray/plugins/dokuwiki/inc/parserutils.php on line 407
The reported file has a major defect.
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The parser does not find the existing “mdat” frame. This “mdat” frame is present and located late in the m4a header. I will further investigate.
The files itself is broken. The first “free” frame indicates a wrong length (0xC07A). If the correct length is indicated (0×17928) the files plays fine.
I have uploaded the file with this simple change: http://www.sendspace.com/file/5c5ng5
So, our parser does not have any bug, but is not as error resilient as others…
Edit: The header has two sets of metadata (album, title, etc.). The 2nd one is not placed correctly and preceeded by several kilobytes of data (audio stream?). Seems like a tagger has messed up the file…