Fails if /tmp too small

[ckoegit]

Hello !

This is a minor observation and a suggestion for improved documentation/ usability.

I got this somewhat cryptic (pythonic ?) error message from the git cloned version 2.0.0

 % ~/Downloads/dr14_t.meter/dr14_tmeter -v
2.0.0

% ~/Downloads/dr14_t.meter/dr14_tmeter
...
...
 - ERROR ! 
Unexpected error: (<class 'ValueError'>, ValueError('cannot reshape array of size 59471833 into shape (1073741823,2)'), <traceback object at 0x14d699a68940>)

 - ERROR ! 
- fail - /mnt/ramfs/TEST/jxtQ.flac
- fail - /mnt/ramfs/TEST/sUF.flac
No audio files found

 Usage: dr14_tmeter [options] path_name
...
...

After some head scratching and poking around (debian 11.3) I looked into dr14tmeter/audio_file_reader.py where a temporary directory is created via

tmp_dir = tempfile.gettempdir()

Well, on this particular machine /tmp is only a 256 MByte ramdisk, which I guessed is too small to store a wav (?) file derived from an about 700 MByte flac input. In fact, setting $TMPDIR in the environment to point to a larger (i.e. GBytes free space) filesytem completely cured the problem, dr14_tmeter ran and finished successfully.

I would suggest documenting that enough space on /tmp or in another location is needed (to work around the useless error message python generates), together with a hint to set $TMPDIR if necessary and/or exposing a command line option to set the location for temporary files.

Best Regards