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120 lines
3 KiB
Python
Executable file
120 lines
3 KiB
Python
Executable file
#!/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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# gst-python
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# Copyright (C) 2003 David I. Lehn
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Library General Public
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# License as published by the Free Software Foundation; either
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# version 2 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Library General Public License for more details.
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#
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# You should have received a copy of the GNU Library General Public
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# License along with this library; if not, write to the
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# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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# Boston, MA 02110-1301, USA.
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#
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# Author: David I. Lehn <dlehn@users.sourceforge.net>
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#
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import pygtk
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pygtk.require('2.0')
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import sys
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import time
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import gobject
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import gtk
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import pygst
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pygst.require('0.10')
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import gst
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class BPS(object):
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def __init__(self):
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self.buffers = 0
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self.start = 0
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def done(self):
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end = time.time()
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dt = end - self.start
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bps = self.buffers/dt
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spb = dt/self.buffers
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print '\t%d buffers / %fs\t= %f bps\t= %f spb' % (self.buffers, dt, bps, spb)
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def fakesrc(self, buffers):
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src = gst.element_factory_make('fakesrc','src')
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src.set_property('silent', 1)
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src.set_property('num_buffers', buffers)
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return src
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def fakesink(self):
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sink = gst.element_factory_make('fakesink','sink')
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sink.set_property('silent', 1)
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return sink
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def build_pipeline(self, buffers):
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pipeline = gst.Pipeline('pipeline')
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src = self.fakesrc(buffers)
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pipeline.add(src)
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sink = self.fakesink()
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pipeline.add(sink)
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src.link(sink)
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return pipeline
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def idle(self, pipeline):
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return pipeline.iterate()
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def test(self):
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self.bus = self.pipeline.get_bus()
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self.start = time.time()
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self.pipeline.set_state(gst.STATE_PLAYING)
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while 1:
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msg = self.bus.poll(gst.MESSAGE_EOS | gst.MESSAGE_ERROR, gst.SECOND)
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if msg:
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break
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self.pipeline.set_state(gst.STATE_NULL)
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self.done()
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def run(self, buffers):
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self.buffers = buffers
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print '# Testing buffer processing rate for "fakesrc ! fakesink"'
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print '# bps = buffers per second'
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print '# spb = seconds per buffer'
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self.pipeline = self.build_pipeline(buffers)
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assert self.pipeline
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self.test()
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def main(args):
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"GStreamer Buffers-Per-Second tester"
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if len(args) < 2:
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print 'usage: %s buffers' % args[0]
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return 1
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bps = BPS()
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buffers = int(args[1])
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if buffers < 1:
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print 'buffers must be higher than 0'
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return
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bps.run(buffers)
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if __name__ == '__main__':
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sys.exit(main(sys.argv))
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