gstreamer/examples/helloworld.py
Stefan Sauer cd7e03d936 examples: add helloworld example
Add a straight 1:1 copy from cores' helloworld.c to show how the c api maps into
the pythong bindings. It would rock to have the same in other bindings.
2011-10-31 10:51:27 +01:00

54 lines
1.3 KiB
Python

#!/usr/bin/env python
import sys
import gobject
gobject.threads_init()
import pygst
pygst.require('0.10')
import gst
def bus_call(bus, message, loop):
t = message.type
if t == gst.MESSAGE_EOS:
sys.stout.write("End-of-stream\n")
loop.quit()
elif t == gst.MESSAGE_ERROR:
err, debug = message.parse_error()
sys.stderr.write("Error: %s: %s\n" % err, debug)
loop.quit()
return True
def main(args):
if len(args) != 2:
sys.stderr.write("usage: %s <media file or uri>\n" % args[0])
sys.exit(1)
playbin = gst.element_factory_make("playbin2", None)
if not playbin:
sys.stderr.write("'playbin2' gstreamer plugin missing\n")
sys.exit(1)
# take the commandline argument and ensure that it is a uri
if gst.uri_is_valid(args[1]):
uri = args[1]
else:
uri = gst.filename_to_uri(args[1])
playbin.set_property('uri', uri)
# create and event loop and feed gstreamer bus mesages to it
loop = gobject.MainLoop()
bus = playbin.get_bus()
bus.add_watch(bus_call, loop)
# start play back and listed to events
playbin.set_state(gst.STATE_PLAYING)
loop.run()
# cleanup
playbin.set_state(gst.STATE_NULL)
if __name__ == '__main__':
sys.exit(main(sys.argv))