def collectiongain_options():
opts = common_options()
opts.add_option("--ignore-cache", help="Don't trust implicit assumptions "
"about what was already done, instead check all files for "
"Replay Gain data explicitly.", dest="ignore_cache",
action="store_true")
opts.set_defaults(ignore_cache=False)
opts.set_usage("%prog [options] MUSIC_DIR")
opts.set_description("Calculate Replay Gain for a large set of audio files "
"without asking many questions. This program "
"calculates an album ID for any audo file in "
"MUSIC_DIR. Then, album gain will be applied to all "
"files with the same album ID. The album ID is "
"created from file tags as follows: If an 'album' tag "
"is present, it is joined with the contents of an "
"'albumartist' tag, or, if that isn't set, the "
"contents of the 'artist' tag, or nothing if there is "
"no 'artist' tag as well. On the other hand, if no "
"'album' tag is present, the file is assumed to be a "
"single track without album; in that case, no album "
"gain will be calculated for that file.")
return opts
def rgain_options():
opts = common_options()
opts.add_option("--no-album", help="Don't write any album gain "
"information.", dest="album", action="store_false")
opts.add_option("--show", help="Don't calculate anything, simply show "
"Replay Gain information for the specified files. In this "
"mode, all other options save for '--mp3-format' are "
"ignored, for they would make no sense.", dest="show",
action="store_true")
opts.set_defaults(album=True, show=False)
opts.set_usage("%prog [options] AUDIO_FILE [AUDIO_FILE ...]")
opts.set_description("Apply or display Replay Gain information for audio "
"files. This program is similar to the likes of "
"'vorbisgain' or 'mp3gain': You pass in some files, "
"they are analyzed and receive their share of Replay "
"Gain. The difference is that '%prog' supports "
"several file formats, namely Ogg Vorbis (anything "
"you'd put into an Ogg container, actually), Flac, "
"WavPack and MP3. Also, it allows you to view "
"existing Replay Gain information in any of those "
"file types.")
return opts
