def __init__(self, fileobj, offset):
fileobj.seek(offset or 0)
header = fileobj.read(18)
if len(header) != 18 or not header.startswith("TTA"):
raise TrueAudioHeaderError("TTA header not found")
self.sample_rate = cdata.int_le(header[10:14])
samples = cdata.uint_le(header[14:18])
self.length = float(samples) / self.sample_rate
def __init__(self, fileobj):
page = OggPage(fileobj)
while not page.packets[0].startswith("Speex "):
page = OggPage(fileobj)
if not page.first:
raise OggSpeexHeaderError(
"page has ID header, but doesn't start a stream")
self.sample_rate = cdata.uint_le(page.packets[0][36:40])
self.channels = cdata.uint_le(page.packets[0][48:52])
self.bitrate = cdata.int_le(page.packets[0][52:56])
if self.bitrate == -1:
self.bitrate = 0
self.serial = page.serial