2009-01-18 08:39:14 +00:00
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# -*- coding: utf-8 -*-
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# vi:si:et:sw=4:sts=4:ts=4
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2010-08-04 09:53:10 +00:00
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# GPL 2008
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import gobject
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import pygst
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pygst.require("0.10")
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import gst
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import Image
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class ImageSink(gst.BaseSink):
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__gsignals__ = {
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"frame" : (gobject.SIGNAL_RUN_LAST,
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gobject.TYPE_NONE,
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( gobject.TYPE_PYOBJECT, gobject.TYPE_UINT64 ))
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}
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__gsttemplates__ = (
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gst.PadTemplate ("sink",
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gst.PAD_SINK,
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gst.PAD_ALWAYS,
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gst.Caps("video/x-raw-rgb,"
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"bpp = (int) 24, depth = (int) 24,"
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"endianness = (int) BIG_ENDIAN,"
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"red_mask = (int) 0x00FF0000, "
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"green_mask = (int) 0x0000FF00, "
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"blue_mask = (int) 0x000000FF, "
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"width = (int) [ 1, max ], "
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"height = (int) [ 1, max ], "
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"framerate = (fraction) [ 0, max ]"))
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)
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def __init__(self):
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gst.BaseSink.__init__(self)
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self.width = 1
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self.height = 1
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self.set_sync(False)
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def do_set_caps(self, caps):
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self.log("caps %s" % caps.to_string())
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self.log("padcaps %s" % self.get_pad("sink").get_caps().to_string())
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self.width = caps[0]["width"]
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self.height = caps[0]["height"]
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self.framerate = caps[0]["framerate"]
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if not caps[0].get_name() == "video/x-raw-rgb":
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return False
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return True
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def do_render(self, buf):
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self.log("buffer %s %d" % (gst.TIME_ARGS(buf.timestamp),
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len(buf.data)))
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frame = Image.fromstring('RGB', (self.width, self.height), buf.data)
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self.emit('frame', frame, buf.timestamp)
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return gst.FLOW_OK
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def do_preroll(self, buf):
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return self.do_render(buf)
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gobject.type_register(ImageSink)
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