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https://github.com/matthew1000/gstreamer-cheat-sheet.git
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51 lines
1.5 KiB
Python
51 lines
1.5 KiB
Python
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#!/usr/bin/env python
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# Shows how two pipelines can be connected, using proxysink/proxysrc
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# This example uses Playbin to read a file, and send the video and audio to separate proxies.
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# Unlike just using playbin directly, this will never end, as the other pipelines will continue 'listening'.
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import gi
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gi.require_version('Gst', '1.0')
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from gi.repository import GObject, Gst
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import os
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Gst.init(None)
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mainloop = GObject.MainLoop()
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pipe1 = Gst.parse_launch("playbin uri=\"file://" + os.environ['SRC'] + "\"")
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playsink = pipe1.get_by_name('playsink')
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psink1 = Gst.ElementFactory.make("proxysink", "psink1")
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psink2 = Gst.ElementFactory.make("proxysink", "psink2")
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playsink.set_property('video-sink', psink1)
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playsink.set_property('audio-sink', psink2)
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pipe2 = Gst.parse_launch("proxysrc name=psrc1 ! autovideosink")
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psrc1 = pipe2.get_by_name('psrc1')
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psrc1.set_property('proxysink', psink1)
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pipe3 = Gst.parse_launch("proxysrc name=psrc2 ! autoaudiosink")
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psrc2 = pipe3.get_by_name('psrc2')
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psrc2.set_property('proxysink', psink2)
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clock = Gst.SystemClock.obtain()
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pipe1.use_clock(clock)
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pipe2.use_clock(clock)
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pipe3.use_clock(clock)
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clock.unref()
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pipe1.set_base_time(0)
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pipe2.set_base_time(0)
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pipe3.set_base_time(0)
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pipe1.set_state(Gst.State.PLAYING)
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pipe2.set_state(Gst.State.PLAYING)
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pipe3.set_state(Gst.State.PLAYING)
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def on_error(bus, message):
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print(message.parse_error())
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bus1 = pipe1.get_bus()
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bus1.add_signal_watch()
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bus1.connect('message::error', on_error)
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mainloop.run()
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