def __init__(self,
preset=None,
verbose=False,
encParams={},
seqParams={},
allParams={}):
"""x.__init__(...) initializes x; see x.__class__.__doc__ for signature"""
super(DiracEncoder, self).__init__()
allParams.update(encParams)
allParams.update(seqParams)
if 'frame_rate' in allParams:
allParams['frame_rate'] = rational(allParams['frame_rate'])
if "pix_asr" in allParams:
allParams['pix_asr'] = rational(allParams['pix_asr'])
if _encoder_version == (0, 5, 4):
self.encoder = EncoderWrapper(preset=preset,
bufsize=1024 * 1024,
verbose=verbose,
encParams=allParams,
seqParams=allParams)
else: # _encoder_version == (0,6,0):
self.encoder = EncoderWrapper(preset=preset,
bufsize=1024 * 1024,
verbose=verbose,
allParams=allParams)
def write_header(self, frame):
"""\
Generator.
Sends the YUV4MPEG format header to the "outbox" outbox, based on
attributes of the supplied frame data structure.
"""
format = "YUV4MPEG2 W%d H%d" % tuple(frame['size'])
if frame['pixformat']=="YUV420_planar":
format += " C420mpeg2"
elif frame['pixformat']=="YUV411_planar":
format += " C411"
elif frame['pixformat']=="YUV422_planar":
format += " C422"
elif frame['pixformat']=="YUV444_planar":
format += " C444"
elif frame['pixformat']=="YUV4444_planar":
format += " C444alpha"
elif frame['pixformat']=="Y_planar":
format += " Cmono"
interlace = frame.get("interlaced",False)
topfieldfirst = frame.get("topfieldfirst",False)
if interlace and topfieldfirst:
format += " It"
elif interlace and not topfieldfirst:
format += " Ib"
elif not interlace:
format += " Ip"
rate = frame.get("frame_rate", 0)
if rate > 0:
num,denom = rational(rate)
format += " F%d:%d" % (num,denom)
rate = frame.get("pixel_aspect", 0)
if rate > 0:
num,denom = rational(rate)
format += " A%d:%d" % (num,denom)
if "sequence_meta" in frame:
format += " X"+frame['sequence_meta']
format += "\x0a"
for _ in self.sendoutbox(format):
yield _
def __init__(self, preset=None, verbose=False, encParams={}, seqParams={}, allParams={}):
"""x.__init__(...) initializes x; see x.__class__.__doc__ for signature"""
super(DiracEncoder, self).__init__()
allParams.update(encParams)
allParams.update(seqParams)
if 'frame_rate' in allParams:
allParams['frame_rate'] = rational(allParams['frame_rate'])
if "pix_asr" in allParams:
allParams['pix_asr'] = rational(allParams['pix_asr'])
if _encoder_version == (0,5,4):
self.encoder = EncoderWrapper(preset=preset, bufsize=1024*1024, verbose=verbose, encParams=allParams, seqParams=allParams)
else: # _encoder_version == (0,6,0):
self.encoder = EncoderWrapper(preset=preset, bufsize=1024*1024, verbose=verbose, allParams=allParams)
