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24 lines
680 B
Python
24 lines
680 B
Python
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#!/usr/bin/python
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import gobject; gobject.threads_init()
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import pygst; pygst.require("0.10")
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import gst
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p = gst.parse_launch ("""
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v4l2src !
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ffmpegcolorspace ! queue ! video/x-raw-rgb,width=320,height=240,framerate=30/1 ! burn qos=true name=vf ! ffmpegcolorspace !
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timeoverlay ! xvimagesink
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""")
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m = p.get_by_name ("vf")
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m.set_property ("adjustment", 128)
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control = gst.Controller(m, "adjustment")
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control.set_interpolation_mode("adjustment", gst.INTERPOLATE_LINEAR)
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control.set("adjustment", 0 * gst.SECOND, 128)
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control.set("adjustment", 5 * gst.SECOND, 256)
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control.set("adjustment", 25 * gst.SECOND, 0)
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p.set_state (gst.STATE_PLAYING)
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gobject.MainLoop().run()
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