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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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138 lines
4 KiB
Python
Executable file
138 lines
4 KiB
Python
Executable file
#!/usr/bin/env python
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#
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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., 59 Temple Place - Suite 330,
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# Boston, MA 02111-1307, 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 sys
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import time
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from gstreamer import *
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from gobject import GObject
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import gtk
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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 eos(self, sink):
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self.done()
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if self.method in ('gtk', 'c'):
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gtk.main_quit()
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def fakesrc(self, buffers):
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src = gst_element_factory_make('fakesrc','src')
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assert 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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assert 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 = Pipeline('pipeline')
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assert 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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sink.connect('eos', self.eos)
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src.link(sink)
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return pipeline
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def notify(self, sender, obj, arg):
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prop = obj.get_property(arg.name)
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print 'notify', sender, arg.name, prop
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print prop
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def idle(self, pipeline):
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return pipeline.iterate()
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def test(self, method):
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print '%s:' % (method,),
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self.pipeline.set_state(STATE_PLAYING)
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if method == 'py':
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self.start = time.time()
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while self.pipeline.iterate():
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pass
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elif method == 'c':
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self.start = time.time()
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self.iter_id = add_iterate_bin(self.pipeline)
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gtk.main()
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elif method == 'gtk':
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self.start = time.time()
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gtk.idle_add(self.idle, self.pipeline)
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gtk.main()
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elif method == 'all':
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self.start = time.time()
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iterate_bin_all(self.pipeline)
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self.pipeline.set_state(STATE_NULL)
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def __main__(self):
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"GStreamer Buffers-Per-Second tester"
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gst_info_set_categories(0L)
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gst_debug_set_categories(0L)
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if len(sys.argv) < 2:
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print 'usage: %s buffers [method method ...]' % sys.argv[0]
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return 1
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else:
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self.buffers = int(sys.argv[1])
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self.methods = sys.argv[2:]
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if self.methods == []:
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self.methods = ('gtk', 'c', 'py', 'all')
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print '# Testing buffer processing rate for "fakesrc ! fakesink"'
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print '# gtk = gtk idle loop function in python'
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print '# c = gtk idle loop function in C'
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print '# py = full iterate loop in python'
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print '# all = full iterate loop in C'
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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(self.buffers)
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assert self.pipeline
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#self.pipeline.connect('deep-notify', self.notify)
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for m in self.methods:
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self.method = m
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self.test(m)
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return 0;
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if __name__ == '__main__':
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bps = BPS()
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ret = bps.__main__()
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sys.exit (ret)
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