gstreamer/examples/gst/oggplay.py
David I. Lehn dae8809ed5 use new gst_element_connect() api.
Original commit message from CVS:
use new gst_element_connect() api.
looks more fragile than being explicit via _connect_pads()
2002-04-15 23:51:21 +00:00

80 lines
2.1 KiB
Python
Executable file

#!/usr/bin/env python2.2
#
# gst-python
# Copyright (C) 2002 David I. Lehn
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
#
# Author: David I. Lehn <dlehn@vt.edu>
#
import sys
from gstreamer import *
def main():
"Basic example to play an Ogg Vorbis stream through OSS"
#gst_debug_set_categories(-1)
if len(sys.argv) != 2:
print 'usage: %s <Ogg Vorbis file>' % (sys.argv[0])
return -1
# create a new bin to hold the elements
bin = gst_pipeline_new ('pipeline')
# create a disk reader
filesrc = gst_element_factory_make ('filesrc', 'disk_source');
if not filesrc:
print 'could not find plugin \"filesrc\"'
return -1
filesrc.set_property('location', sys.argv[1])
# now get the decoder
decoder = gst_element_factory_make ('vorbisdec', 'parse');
if not decoder:
print 'could not find plugin \"vorbisdec\"'
return -1
# and an audio sink
osssink = gst_element_factory_make ('osssink', 'play_audio')
if not osssink:
print 'could not find plugin \"osssink\"'
return -1
# add objects to the main pipeline
for e in (filesrc, decoder, osssink):
bin.add(e)
# connect the elements
previous = None
for e in (filesrc, decoder, osssink):
if previous:
previous.connect(e)
previous = e
# start playing
bin.set_state(STATE_PLAYING);
while bin.iterate(): pass
# stop the bin
bin.set_state(STATE_NULL)
return 0
if __name__ == '__main__':
ret = main()
sys.exit(ret)