def __init__(self):
"""x.__init__(...) initializes x; see x.__class__.__doc__ for signature"""
super(DiracDecoder, self).__init__()
self.decoder = DiracParser()
self.inputbuffer = ""
def __init__(self):
"""x.__init__(...) initializes x; see x.__class__.__doc__ for signature"""
super(DiracDecoder, self).__init__()
self.decoder = DiracParser()
self.inputbuffer = ""
class DiracDecoder(component):
"""
DiracDecoder() -> new Dirac decoder component
Creates a component that decodes Dirac video.
"""
Inboxes = {
"inbox": "Strings containing an encoded dirac video stream",
"control": "for shutdown signalling",
}
Outboxes = {
"outbox": "YUV decoded video frames",
"signal": "for shutdown/completion signalling",
}
def __init__(self):
"""x.__init__(...) initializes x; see x.__class__.__doc__ for signature"""
super(DiracDecoder, self).__init__()
self.decoder = DiracParser()
self.inputbuffer = ""
def main(self):
"""Main loop"""
done = False
while not done:
dataShortage = False
while self.dataReady("inbox"):
self.inputbuffer += self.recv("inbox")
while self.dataReady("control"):
msg = self.recv("control")
if isinstance(msg, shutdownMicroprocess):
self.send(msg, "signal")
done = True
try:
frame = self.decoder.getFrame()
frame['pixformat'] = map_chroma_type(frame['chroma_type'])
self.send(frame, "outbox")
except "NEEDDATA":
if self.inputbuffer:
self.decoder.sendBytesForDecode(self.inputbuffer)
self.inputbuffer = ""
else:
datashortage = True
except "SEQINFO":
# sequence info dict in self.decoder.getSeqData()
pass
except "END":
done = True
self.send(producerFinished(self), "signal")
except "STREAMERROR":
print("Stream error")
raise IOError("STREAMERROR")
except "INTERNALFAULT":
print("Internal fault")
raise RuntimeError("INTERNALFAULT")
if dataShortage and not done:
self.pause()
yield 1
class DiracDecoder(component):
"""
DiracDecoder() -> new Dirac decoder component
Creates a component that decodes Dirac video.
"""
Inboxes = { "inbox" : "Strings containing an encoded dirac video stream",
"control" : "for shutdown signalling",
}
Outboxes = { "outbox" : "YUV decoded video frames",
"signal" : "for shutdown/completion signalling",
}
def __init__(self):
"""x.__init__(...) initializes x; see x.__class__.__doc__ for signature"""
super(DiracDecoder, self).__init__()
self.decoder = DiracParser()
self.inputbuffer = ""
def main(self):
"""Main loop"""
done = False
while not done:
dataShortage = False
while self.dataReady("inbox"):
self.inputbuffer += self.recv("inbox")
while self.dataReady("control"):
msg = self.recv("control")
if isinstance(msg, shutdownMicroprocess):
self.send(msg, "signal")
done=True
try:
frame = self.decoder.getFrame()
frame['pixformat'] = map_chroma_type(frame['chroma_type'])
self.send(frame,"outbox")
except "NEEDDATA":
if self.inputbuffer:
self.decoder.sendBytesForDecode(self.inputbuffer)
self.inputbuffer = ""
else:
datashortage = True
except "SEQINFO":
# sequence info dict in self.decoder.getSeqData()
pass
except "END":
done = True
self.send(producerFinished(self), "signal")
except "STREAMERROR":
print "Stream error"
raise "STREAMERROR"
except "INTERNALFAULT":
print "Internal fault"
raise "INTERNALFAULT"
if dataShortage and not done:
self.pause()
yield 1
