FIX For depreciated ffmpeg

[user2222222222]

Change

'%(ffmpeg)s -y -acodec copy -t %(duration)s -ss %(start)s -i %(outfile)s %(infile)s'

with

'%(ffmpeg)s -i %(outfile)s -y -acodec copy -t %(duration)s -ss %(start)s %(infile)s'

in "m4b.py" to fix the "Unknown decoder 'copy'" problem.

[joshp23]

this is how i did it

on line 289 of m4b.py:

 values = dict(ffmpeg=args.ffmpeg, duration=str(chapter.duration()),
             start=str(chapter.start), outfile=encoded_file, infile=fname)
-        split_cmd = '%(ffmpeg)s -y -acodec copy -t %(duration)s -ss %(start)s -i %(outfile)s %(infile)s'
+        split_cmd = '%(ffmpeg)s -y -t %(duration)s -ss %(start)s -i %(outfile)s -acodec copy %(infile)s'

         log.info("Splitting chapter %2d/%2d '%s'..." % (chapter.num, len(chapters), chapter_name))
         log.debug('Splitting with command: %s' % (split_cmd % values))