def __init__(self, name, process):
self.__gobject_init__()
self.set_name(name)
self.process = process
self.adapter = gst.Adapter()
self.set_property('sync', False)
self.pos = 0
def __init__(self, path, frameStart=0, frameLength=-1):
"""
A frame is considered a set of samples for each channel;
ie 16 bit stereo is 4 bytes per frame.
If frameLength < 0 it is treated as 'unknown' and calculated.
@type path: unicode
@type frameStart: int
@param frameStart: the frame to start at
"""
assert type(path) is unicode, "%r is not unicode" % path
self.logName = "ChecksumTask 0x%x" % id(self)
# use repr/%r because path can be unicode
self.debug('Creating checksum task on %r from %d to %d', path,
frameStart, frameLength)
if not os.path.exists(path):
raise IndexError('%r does not exist' % path)
self._path = path
self._frameStart = frameStart
self._frameLength = frameLength
self._frameEnd = None
self._checksum = 0
self._bytes = 0 # number of bytes received
self._first = None
self._last = None
self._adapter = gst.Adapter()
self.checksum = None # result
cgstreamer.removeAudioParsers()
def __init__(self):
gst.Element.__init__(self)
self.sinkpad = gst.Pad(self._sinkpadtemplate, "sink")
self.sinkpad.use_fixed_caps()
self.srcpad = gst.Pad(self._srcpadtemplate, "src")
self.srcpad.use_fixed_caps()
self.sinkpad.set_chain_function(self.chainfunc)
self.sinkpad.set_event_function(self.eventfunc)
self.add_pad(self.sinkpad)
self.srcpad.set_event_function(self.srceventfunc)
self.add_pad(self.srcpad)
self.adapter = gst.Adapter()
def __init__(self, path, sampleStart=0, sampleLength=-1):
"""
A sample is considered a set of samples for each channel;
ie 16 bit stereo is 4 bytes per sample.
If sampleLength < 0 it is treated as 'unknown' and calculated.
@type path: unicode
@type sampleStart: int
@param sampleStart: the sample to start at
"""
# sampleLength can be e.g. -588 when it is -1 * SAMPLES_PER_FRAME
assert type(path) is unicode, "%r is not unicode" % path
self.logName = "ChecksumTask 0x%x" % id(self)
# use repr/%r because path can be unicode
if sampleLength < 0:
self.debug(
'Creating checksum task on %r from sample %d until the end',
path, sampleStart)
else:
self.debug(
'Creating checksum task on %r from sample %d for %d samples',
path, sampleStart, sampleLength)
if not os.path.exists(path):
raise IndexError('%r does not exist' % path)
self._path = path
self._sampleStart = sampleStart
self._sampleLength = sampleLength
self._sampleEnd = None
self._checksum = 0
self._bytes = 0 # number of bytes received
self._first = None
self._last = None
self._adapter = gst.Adapter()
self.checksum = None # result
cgstreamer.removeAudioParsers()
def _reset(self):
self.adapter = gst.Adapter()
self._frameCount = 0
self._shouldOutputMetadata = False
self._lastTitle = None
self._lastTitleTimestamp = -1