mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-06 01:19:38 +00:00
120 lines
3 KiB
Python
Executable file
120 lines
3 KiB
Python
Executable file
#!/usr/bin/env python
|
|
# -*- Mode: Python -*-
|
|
# vi:si:et:sw=4:sts=4:ts=4
|
|
|
|
# gst-python
|
|
# Copyright (C) 2003 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., 51 Franklin Street, Fifth Floor,
|
|
# Boston, MA 02110-1301, USA.
|
|
#
|
|
# Author: David I. Lehn <dlehn@users.sourceforge.net>
|
|
#
|
|
|
|
import pygtk
|
|
pygtk.require('2.0')
|
|
|
|
import sys
|
|
import time
|
|
import gobject
|
|
import gtk
|
|
|
|
import pygst
|
|
pygst.require('0.10')
|
|
|
|
import gst
|
|
|
|
class BPS(object):
|
|
def __init__(self):
|
|
self.buffers = 0
|
|
self.start = 0
|
|
|
|
def done(self):
|
|
end = time.time()
|
|
dt = end - self.start
|
|
bps = self.buffers/dt
|
|
spb = dt/self.buffers
|
|
print '\t%d buffers / %fs\t= %f bps\t= %f spb' % (self.buffers, dt, bps, spb)
|
|
|
|
def fakesrc(self, buffers):
|
|
src = gst.element_factory_make('fakesrc','src')
|
|
src.set_property('silent', 1)
|
|
src.set_property('num_buffers', buffers)
|
|
return src
|
|
|
|
def fakesink(self):
|
|
sink = gst.element_factory_make('fakesink','sink')
|
|
sink.set_property('silent', 1)
|
|
return sink
|
|
|
|
def build_pipeline(self, buffers):
|
|
pipeline = gst.Pipeline('pipeline')
|
|
|
|
src = self.fakesrc(buffers)
|
|
pipeline.add(src)
|
|
sink = self.fakesink()
|
|
pipeline.add(sink)
|
|
src.link(sink)
|
|
|
|
return pipeline
|
|
|
|
def idle(self, pipeline):
|
|
return pipeline.iterate()
|
|
|
|
def test(self):
|
|
self.bus = self.pipeline.get_bus()
|
|
|
|
self.start = time.time()
|
|
|
|
self.pipeline.set_state(gst.STATE_PLAYING)
|
|
|
|
while 1:
|
|
msg = self.bus.poll(gst.MESSAGE_EOS | gst.MESSAGE_ERROR, gst.SECOND)
|
|
if msg:
|
|
break
|
|
|
|
self.pipeline.set_state(gst.STATE_NULL)
|
|
self.done()
|
|
|
|
def run(self, buffers):
|
|
self.buffers = buffers
|
|
|
|
print '# Testing buffer processing rate for "fakesrc ! fakesink"'
|
|
print '# bps = buffers per second'
|
|
print '# spb = seconds per buffer'
|
|
|
|
self.pipeline = self.build_pipeline(buffers)
|
|
assert self.pipeline
|
|
|
|
self.test()
|
|
|
|
def main(args):
|
|
"GStreamer Buffers-Per-Second tester"
|
|
|
|
if len(args) < 2:
|
|
print 'usage: %s buffers' % args[0]
|
|
return 1
|
|
|
|
bps = BPS()
|
|
|
|
buffers = int(args[1])
|
|
if buffers < 1:
|
|
print 'buffers must be higher than 0'
|
|
return
|
|
|
|
bps.run(buffers)
|
|
|
|
if __name__ == '__main__':
|
|
sys.exit(main(sys.argv))
|