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Add argument to set volume gain for all tracks

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Partially revert 8b38b0fb90 to set default
volume gain to 0 instead of 60 (which is extremely loud for my ears with
my headphones).
This commit is contained in:
Andrey Mazo 2014-06-24 15:10:57 +04:00
parent f64a67403f
commit 384c92b7c5
1 changed files with 16 additions and 3 deletions
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19
shuffle.py
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@ -93,6 +93,7 @@ class Record(object):
self._fields = {}
self.voiceover = parent.voiceover
self.rename = parent.rename
self.trackgain = parent.trackgain
def __getitem__(self, item):
if item not in self._struct.keys():
@ -230,7 +231,7 @@ class Track(Record):
("header_length", ("I", 0x174)),
("start_at_pos_ms", ("I", 0)),
("stop_at_pos_ms", ("I", 0)),
("volume_gain", ("I", 60)),
("volume_gain", ("I", int(self.trackgain))),
("filetype", ("I", 1)),
("filename", ("256s", "\x00" * 256)),
("bookmark", ("I", 0)),
@ -433,7 +434,7 @@ class Playlist(Record):
return output + chunks
class Shuffler(object):
def __init__(self, path, voiceover=True, rename=False):
def __init__(self, path, voiceover=True, rename=False, trackgain=0):
self.path, self.base = self.determine_base(path)
self.tracks = []
self.albums = []
@ -442,6 +443,7 @@ class Shuffler(object):
self.tunessd = None
self.voiceover = voiceover
self.rename = rename
self.trackgain = trackgain
def initialize(self):
# remove existing voiceover files (they are either useless or will be overwritten anyway)
@ -512,17 +514,28 @@ def check_unicode(path):
os.rename(src, dest)
return ret_flag
def nonnegative_int(string):
try:
intval = int(string)
except ValueError:
raise argparse.ArgumentTypeError("'%s' must be an integer" % string)
if intval < 0:
raise argparse.ArgumentTypeError("'%s' is negative while it shouldn't be" % string)
return intval
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument('--disable-voiceover', action='store_true', help='Disable Voiceover Feature')
parser.add_argument('--rename-unicode', action='store_true', help='Rename Files Causing Unicode Errors, will do minimal required renaming')
parser.add_argument('--track-gain', type=nonnegative_int, default=0, help='Store this (nonnegative integer) volume gain for all tracks; 0 (default) means no gain and is usually fine; e.g. 60 is very loud even on minimal player volume')
parser.add_argument('path')
result = parser.parse_args()
if result.rename_unicode:
check_unicode(result.path)
shuffle = Shuffler(result.path, voiceover=not result.disable_voiceover, rename=result.rename_unicode)
shuffle = Shuffler(result.path, voiceover=not result.disable_voiceover, rename=result.rename_unicode, trackgain=result.track_gain)
shuffle.initialize()
shuffle.populate()
shuffle.write_database()