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port of lat.c (work in progress)
Original commit message from CVS: port of lat.c (work in progress)
This commit is contained in:
David I. Lehn
parent
66302e9e82
commit
6cc4981af1
2 changed files with 392 additions and 0 deletions
196
examples/gst/lat.py
Executable file
196
examples/gst/lat.py
Executable file
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#!/usr/bin/env python2.2
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#
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# gst-python
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# Copyright (C) 2002 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@vt.edu>
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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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def update(sender, *args):
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print sender.get_name(), args
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max = 0
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min = -1
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total = 0
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count = 0
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print_del = 1
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interations = 0
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def handoff_src(src, buf):
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#buf.set_timestamp(time.time())
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pass
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def handoff_sink(sink, buf):
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global max, min, total, count
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end = time.time()
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#d = end - buf.get_timestamp()
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d = end - 0
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if d > max:
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max = d
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if d < min:
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min = d
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total += d
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count += 1
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avg = total/count
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if (count % print_del) == 0:
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print '%07d:%08d min:%08d max:%08d avg:%f\n' %\
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(count, d, min, max, avg),
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def identity_add(pipeline, first, count):
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last = first
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for i in range(count):
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name = 'identity_%03d' % i
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ident = gst_elementfactory_make('identity', name)
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assert ident
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ident.set_property('silent', 1)
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pipeline.add(ident)
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last.get_pad('src').connect(ident.get_pad('sink'))
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last = ident
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return last
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def fakesrc():
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src = gst_elementfactory_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', iterations)
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GObject.connect(src, 'handoff', handoff_src)
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return src
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def fakesink():
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sink = gst_elementfactory_make('fakesink','fakesink')
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assert sink
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sink.set_property('silent', 1)
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GObject.connect(sink, 'handoff', handoff_sink)
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return sink
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def simple(argv):
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if len(argv) < 1:
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print 'simple: bad params'
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return None
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idents = int(argv[0])
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if len(argv) == 2:
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gst_schedulerfactory_set_default_name (argv[1])
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pipeline = gst_pipeline_new('pipeline')
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assert pipeline
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src = fakesrc()
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pipeline.add(src)
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last = identity_add(pipeline, src, idents)
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sink = fakesink()
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pipeline.add(sink)
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last.get_pad('src').connect(sink.get_pad('sink'))
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return pipeline
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def queue(argv):
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if len(argv) < 1:
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print 'queue: bad params'
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return None
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idents = int(argv[0])
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if len(arv) == 2:
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gst_schedulerfactory_set_default_name (argv[1])
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pipeline = gst_pipeline_new('pipeline')
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assert pipeline
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src_thr = gst_thread_new('src_thread')
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assert src_thr
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src = fakesrc()
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assert src
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src_thr.add(src)
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src_q = gst_elementfactory_make('queue','src_q')
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assert src_q
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src_thr.add(src_q)
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src.get_pad('src').connect(src_q.get_pad('sink'))
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pipeline.add(src_thr)
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last = identity_add(pipeline, src_q, idents)
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sink_q = gst_elementfactory_make('queue','sink_q')
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assert sink_q
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pipeline.add(sink_q)
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last.get_pad('src').connect(sink_q.get_pad('sink'))
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sink_thr = gst_thread_new('sink_thread')
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assert sink_thr
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sink = fakesink()
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assert sink
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sink_thr.add(sink)
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pipeline.add(sink_thr)
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sink_q.get_pad('src').connect(sink.get_pad('sink'))
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return pipeline
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tests = {
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'simple' : ('ident_count [scheduler_name]', simple),
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'queue' : ('ident_count [scheduler_name]', queue),
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}
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def main():
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"A GStreamer latency tester"
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#gst_debug_set_categories(-1)
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global iterations, print_del
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if len(sys.argv) < 3:
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print 'usage: %s iterations print_del test_name [test_params...]' % sys.argv[0]
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for name in tests.keys():
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doc, func = tests[name]
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print ' %s %s' % (name, doc)
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return -1
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else:
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iterations = int(sys.argv[1])
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print_del = int(sys.argv[2])
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name = sys.argv[3]
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pipeline = tests[name][1](sys.argv[4:])
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assert pipeline
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#xmlSaveFile('lat.gst', gst_xml_write(pipeline))
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pipeline.set_state(STATE_PLAYING)
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while count < iterations:
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pipeline.iterate()
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pipeline.set_state(STATE_NULL)
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print
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return 0;
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if __name__ == '__main__':
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ret = main()
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sys.exit (ret)
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196
examples/gstreamer/lat.py
Executable file
196
examples/gstreamer/lat.py
Executable file
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@ -0,0 +1,196 @@
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#!/usr/bin/env python2.2
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#
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# gst-python
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# Copyright (C) 2002 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@vt.edu>
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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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def update(sender, *args):
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print sender.get_name(), args
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max = 0
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min = -1
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total = 0
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count = 0
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print_del = 1
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interations = 0
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def handoff_src(src, buf):
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#buf.set_timestamp(time.time())
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pass
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def handoff_sink(sink, buf):
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global max, min, total, count
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end = time.time()
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#d = end - buf.get_timestamp()
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d = end - 0
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if d > max:
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max = d
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if d < min:
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min = d
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total += d
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count += 1
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avg = total/count
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if (count % print_del) == 0:
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print '%07d:%08d min:%08d max:%08d avg:%f\n' %\
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(count, d, min, max, avg),
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def identity_add(pipeline, first, count):
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last = first
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for i in range(count):
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name = 'identity_%03d' % i
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ident = gst_elementfactory_make('identity', name)
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assert ident
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ident.set_property('silent', 1)
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pipeline.add(ident)
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last.get_pad('src').connect(ident.get_pad('sink'))
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last = ident
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return last
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def fakesrc():
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src = gst_elementfactory_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', iterations)
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GObject.connect(src, 'handoff', handoff_src)
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return src
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def fakesink():
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sink = gst_elementfactory_make('fakesink','fakesink')
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assert sink
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sink.set_property('silent', 1)
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GObject.connect(sink, 'handoff', handoff_sink)
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return sink
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def simple(argv):
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if len(argv) < 1:
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print 'simple: bad params'
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return None
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idents = int(argv[0])
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if len(argv) == 2:
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gst_schedulerfactory_set_default_name (argv[1])
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pipeline = gst_pipeline_new('pipeline')
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assert pipeline
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src = fakesrc()
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pipeline.add(src)
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last = identity_add(pipeline, src, idents)
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sink = fakesink()
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pipeline.add(sink)
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last.get_pad('src').connect(sink.get_pad('sink'))
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return pipeline
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def queue(argv):
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if len(argv) < 1:
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print 'queue: bad params'
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return None
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idents = int(argv[0])
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if len(arv) == 2:
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gst_schedulerfactory_set_default_name (argv[1])
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pipeline = gst_pipeline_new('pipeline')
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assert pipeline
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src_thr = gst_thread_new('src_thread')
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assert src_thr
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src = fakesrc()
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assert src
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src_thr.add(src)
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src_q = gst_elementfactory_make('queue','src_q')
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assert src_q
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src_thr.add(src_q)
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src.get_pad('src').connect(src_q.get_pad('sink'))
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pipeline.add(src_thr)
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last = identity_add(pipeline, src_q, idents)
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sink_q = gst_elementfactory_make('queue','sink_q')
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assert sink_q
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pipeline.add(sink_q)
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last.get_pad('src').connect(sink_q.get_pad('sink'))
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sink_thr = gst_thread_new('sink_thread')
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assert sink_thr
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sink = fakesink()
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assert sink
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sink_thr.add(sink)
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pipeline.add(sink_thr)
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sink_q.get_pad('src').connect(sink.get_pad('sink'))
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return pipeline
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tests = {
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'simple' : ('ident_count [scheduler_name]', simple),
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'queue' : ('ident_count [scheduler_name]', queue),
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}
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def main():
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"A GStreamer latency tester"
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#gst_debug_set_categories(-1)
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global iterations, print_del
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if len(sys.argv) < 3:
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print 'usage: %s iterations print_del test_name [test_params...]' % sys.argv[0]
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for name in tests.keys():
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doc, func = tests[name]
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print ' %s %s' % (name, doc)
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return -1
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else:
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iterations = int(sys.argv[1])
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print_del = int(sys.argv[2])
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name = sys.argv[3]
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pipeline = tests[name][1](sys.argv[4:])
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assert pipeline
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#xmlSaveFile('lat.gst', gst_xml_write(pipeline))
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pipeline.set_state(STATE_PLAYING)
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while count < iterations:
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pipeline.iterate()
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pipeline.set_state(STATE_NULL)
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print
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return 0;
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if __name__ == '__main__':
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ret = main()
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sys.exit (ret)
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