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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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d4a8830b7b
Original commit message from CVS: * examples/audio-controller.py: Fix example, use proper property name. Doesn't change anything to the way it used to work, but since it's an example it should be done properly.
40 lines
1.1 KiB
Python
40 lines
1.1 KiB
Python
#!/usr/bin/env python
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# -*- Mode: Python -*-
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# vi:si:et:sw=4:sts=4:ts=4
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# audio-controller.py
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# (c) 2005 Edward Hervey <edward at fluendo dot com>
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# Test case for the GstController on sinesrc -> alsasink
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# Inspired from ensonic's examples/controller/audio-controller.c
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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 time
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def main():
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pipeline = gst.Pipeline("audiocontroller")
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src = gst.element_factory_make("audiotestsrc", "src")
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sink = gst.element_factory_make("alsasink", "sink")
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pipeline.add(src, sink)
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src.link(sink)
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control = gst.Controller(src, "freq", "volume")
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control.set_interpolation_mode("volume", gst.INTERPOLATE_LINEAR)
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control.set_interpolation_mode("freq", gst.INTERPOLATE_LINEAR)
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control.set("volume", 0, 0.0)
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control.set("volume", 2 * gst.SECOND, 1.0)
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control.set("volume", 4 * gst.SECOND, 0.0)
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control.set("volume", 6 * gst.SECOND, 1.0)
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control.set("freq", 0, 440.0)
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control.set("freq", 3 * gst.SECOND, 3000.0)
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control.set("freq", 6 * gst.SECOND, 880.0)
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pipeline.set_state(gst.STATE_PLAYING)
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time.sleep(7)
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if __name__ == "__main__":
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main()
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