Otherwise we end up in a situation where audio3[0].get("bit_rate", 0)
returns the string `"192000.000000"`, which cannot be converted into an
int.
Example:
```
Python 2.7.6 (default, Jun 22 2015, 17:58:13)
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> int("192000.000000")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: invalid literal for int() with base 10: '192000.000000'
>>> int(float("192000.000000"))
192000
```
Relevant log entry:
```
[10:50:57] [DEBUG]::TRANSCODER: ******* Specified bit rate is: 192000.000000
Traceback (most recent call last):
File "/opt/nzbtomedia/nzbToSickBeard.py", line 254, in <module>
result = nzbToMedia.main(sys.argv, section)
File "/opt/nzbtomedia/nzbToMedia.py", line 726, in main
download_id='')
File "/opt/nzbtomedia/nzbToMedia.py", line 615, in process
download_id, inputCategory, failureLink)
File "/opt/nzbtomedia/core/autoProcess/autoProcessTV.py", line 162, in processEpisode
result, newDirName = transcoder.Transcode_directory(dirName)
File "/opt/nzbtomedia/core/transcoder/transcoder.py", line 708, in Transcode_directory
command = buildCommands(file, newDir, movieName, bitbucket)
File "/opt/nzbtomedia/core/transcoder/transcoder.py", line 278, in buildCommands
bitrate = int(audio1[0].get("bit_rate", 0)) / 1000
ValueError: invalid literal for int() with base 10: '192000.000000'
Exception TypeError: "'NoneType' object is not callable" in <bound method PosixProcess.__del__ of <core.nzbToMediaUtil.PosixProcess object at 0x7ffa6a37e590>> ignored
```
If set, the `chmodDirectory` option instructs the nzbToMedia
post-processing script to set the recursive directory permissions to the
octal value specified.
