def read_gain_data(desc):
tag = u"RVA2:%s" % desc
if tag in tags:
frame = tags[tag]
gaindata = GainData(frame.gain, frame.peak)
if u"TXXX:QuodLibet::replaygain_reference_loudness" in tags:
ref_level = parse_db(tags[
u"TXXX:QuodLibet::replaygain_reference_loudness"
].text[0])
if ref_level is not None:
gaindata.ref_level = ref_level
else:
gaindata = None
return gaindata
def _read_gain_data(self, tags, gain_tag, peak_tag):
if gain_tag in tags:
if isinstance(tags[gain_tag][0], bytes):
gain = parse_db(tags[gain_tag][0].decode("utf-8"))
else:
gain = parse_db(tags[gain_tag][0])
if gain is None:
return None
gaindata = GainData(gain)
if peak_tag in tags:
peak = parse_peak(tags[peak_tag][0])
if peak is not None:
gaindata.peak = peak
else:
gaindata = None
return gaindata
def clamp_gain_data(gain_data):
if gain_data is None:
return None
else:
return GainData(
clamp_rva2_gain(gain_data.gain),
clamp_rva2_peak(gain_data.peak),
gain_data.ref_level,
)
def read_gain_data(desc):
gain_tag = u"replaygain_%s_gain" % desc
peak_tag = u"replaygain_%s_peak" % desc
if gain_tag in tags:
gain = parse_db(tags[gain_tag][0])
if gain is None:
return None
gaindata = GainData(gain)
if peak_tag in tags:
peak = parse_peak(tags[peak_tag][0])
if peak is not None:
gaindata.peak = peak
if u"replaygain_reference_loudness" in tags:
ref_level = parse_db(tags[u"replaygain_reference_loudness"][0])
if ref_level is not None:
gaindata.ref_level = ref_level
else:
gaindata = None
return gaindata
def __init__(self, files, force=False, ref_lvl=89):
# TODO: force is apparently unused now. Should remove it in a cleanup.
GObject.GObject.__init__(self)
self.files = files
self.ref_lvl = ref_lvl
self._setup_pipeline()
self._setup_rg_elem()
self._files_iter = iter(self.files)
# this holds all track gain data
self.track_data = {}
self.album_data = GainData(0,
ref_level=self.ref_lvl,
gain_type=GainData.TP_ALBUM)
def _process_tags(self, msg):
"""Process a tag message."""
tags = msg.parse_tag()
trackdata = self.track_data.setdefault(
self._current_file,
GainData(0, ref_level=self.ref_lvl, gain_type=GainData.TP_TRACK),
)
def handle_tag(taglist, tag, userdata):
if tag == Gst.TAG_TRACK_GAIN:
_, trackdata.gain = taglist.get_double(tag)
elif tag == Gst.TAG_TRACK_PEAK:
_, trackdata.peak = taglist.get_double(tag)
elif tag == Gst.TAG_REFERENCE_LEVEL:
_, trackdata.ref_level = taglist.get_double(tag)
elif tag == Gst.TAG_ALBUM_GAIN:
_, self.album_data.gain = taglist.get_double(tag)
elif tag == Gst.TAG_ALBUM_PEAK:
_, self.album_data.peak = taglist.get_double(tag)
tags.foreach(handle_tag, None)
