Commit 2488b32b authored by Edward Hervey's avatar Edward Hervey 🤘

examples/: Updated some examples to 0.9

Original commit message from CVS:
* examples/bps.py:
* examples/f2f.py:
* examples/gstfile.py:
Updated some examples to 0.9
parent ce4e6304
2005-07-13 Edward Hervey <edward@fluendo.com>
* examples/bps.py:
* examples/f2f.py:
* examples/gstfile.py:
Updated some examples to 0.9
2005-07-13 Andy Wingo <wingo@pobox.com>
* examples/vumeter.py: New file, a VU meter application that reads
......
......@@ -28,6 +28,10 @@ import sys
import time
import gobject
import gtk
import pygst
pygst.require('0.9')
import gst
class BPS(object):
......@@ -42,11 +46,6 @@ class BPS(object):
spb = dt/self.buffers
print '\t%d buffers / %fs\t= %f bps\t= %f spb' % (self.buffers, dt, bps, spb)
def eos(self, sink):
self.done()
if self.method in ('gtk', 'c'):
gst.main_quit()
def fakesrc(self, buffers):
src = gst.element_factory_make('fakesrc','src')
src.set_property('silent', 1)
......@@ -65,78 +64,55 @@ class BPS(object):
pipeline.add(src)
sink = self.fakesink()
pipeline.add(sink)
sink.connect('eos', self.eos)
src.link(sink)
return pipeline
def notify(self, sender, obj, arg):
prop = obj.get_property(arg.name)
print 'notify', sender, arg.name, prop
print prop
def idle(self, pipeline):
return pipeline.iterate()
def test(self, method):
print '%s:' % (method,),
self.method = method
def test(self):
self.bus = self.pipeline.get_bus()
self.start = time.time()
print self.pipeline.get_state()
self.pipeline.set_state(gst.STATE_PLAYING)
print self.pipeline.get_state()
if method == 'py':
self.start = time.time()
while self.pipeline.iterate():
pass
elif method == 'c':
self.start = time.time()
gobject.idle_add(self.pipeline.iterate)
gst.main()
#elif method == 'gst':
# self.start = time.time()
# gtk.idle_add(self.idle, self.pipeline)
# gtk.main()
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, methods):
def run(self, buffers):
self.buffers = buffers
print '# Testing buffer processing rate for "fakesrc ! fakesink"'
#print '# gst = gtk idle loop function in python'
print '# c = gtk idle loop function in C'
print '# py = full iterate loop in python'
print '# all = full iterate loop in C'
print '# bps = buffers per second'
print '# spb = seconds per buffer'
self.pipeline = self.build_pipeline(buffers)
assert self.pipeline
#self.pipeline.connect('deep-notify', self.notify)
map(self.test, methods)
self.test()
def main(args):
"GStreamer Buffers-Per-Second tester"
if len(args) < 2:
print 'usage: %s buffers [method method ...]' % args[0]
print 'usage: %s buffers' % args[0]
return 1
bps = BPS()
buffers = int(args[1])
if buffers < 0:
if buffers < 1:
print 'buffers must be higher than 0'
return
methods = args[2:]
if not methods:
methods = ('gtk', 'c', 'py', 'all')
bps.run(buffers, methods)
bps.run(buffers)
if __name__ == '__main__':
sys.exit(main(sys.argv))
......@@ -23,6 +23,9 @@
import sys
import pygst
pygst.require('0.9')
import gst
def handoff_cb(sender, *args):
......@@ -31,18 +34,26 @@ def handoff_cb(sender, *args):
def main(args):
# create a new bin to hold the elements
#gst_debug_set_categories(-1)
bin = gst.parse_launch('fakesrc name=source silent=1 num-buffers=10 ! ' +
'fakesink name=sink silent=1')
bin = gst.parse_launch('fakesrc name=source silent=1 num-buffers=10 signal-handoffs=true ! ' +
'fakesink name=sink silent=1 signal-handoffs=true')
source = bin.get_by_name('source')
source.connect('handoff', handoff_cb)
sink = bin.get_by_name('source')
source.get_pad("src").connect("have-data", handoff_cb)
sink = bin.get_by_name('sink')
sink.connect('handoff', handoff_cb)
sink.get_pad("sink").connect('have-data', handoff_cb)
print source, sink
bus = bin.get_bus()
res = bin.set_state(gst.STATE_PLAYING);
assert res
while bin.iterate():
pass
while 1:
msg = bus.poll(gst.MESSAGE_EOS | gst.MESSAGE_ERROR, gst.SECOND)
if msg:
break
res = bin.set_state(gst.STATE_NULL)
assert res
......
......@@ -13,6 +13,10 @@ import os
import sys
import gobject
import pygst
pygst.require('0.9')
import gst
def time_to_string(value):
......@@ -104,7 +108,7 @@ class Discoverer(gst.Pipeline):
self.typefind.connect("have-type", self._have_type_cb)
self.dbin.connect("new-decoded-pad", self._new_decoded_pad_cb)
self.dbin.connect("unknown-type", self._unknown_type_cb)
self.dbin.connect("found-tag", self._found_tag_cb)
#self.dbin.connect("found-tag", self._found_tag_cb)
self.discover()
......@@ -112,11 +116,41 @@ class Discoverer(gst.Pipeline):
"""iterate on ourself to find the information on the given file"""
if self.finished:
return
self.set_state(gst.STATE_PLAYING)
if not self.set_state(gst.STATE_PLAYING):
# the pipeline wasn't able to be set to playing
self.finished = True
return
bus = self.get_bus()
while 1:
if not self.iterate():
if self.finished:
#print "self.finished, stopping"
break
self.set_state(gst.STATE_NULL)
msg = bus.poll(gst.MESSAGE_ANY, gst.SECOND)
if msg:
msg = bus.pop()
else:
continue
if msg.type & gst.MESSAGE_STATE_CHANGED:
#print "state changed", msg.src.get_name()
#print msg.parse_state_changed()
pass
elif msg.type & gst.MESSAGE_EOS:
break
elif msg.type & gst.MESSAGE_TAG:
for key in msg.parse_tag().keys():
self.tags[key] = msg.structure[key]
print msg.structure.to_string()
elif msg.type & gst.MESSAGE_ERROR:
print "whooops, error"
break
else:
print "unknown message type"
print "going to PAUSED"
#self.set_state(gst.STATE_PAUSED)
print "going to ready"
#self.set_state(gst.STATE_READY)
print "now in ready"
self.finished = True
def print_info(self):
......@@ -159,18 +193,34 @@ class Discoverer(gst.Pipeline):
print "%20s :\t" % tag, self.tags[tag]
def _unknown_type_cb(self, dbin, pad, caps):
print "unknown type", caps.to_string()
# if we get an unknown type and we don't already have an
# audio or video pad, we are finished !
self.otherstreams.append(caps.to_string())
if not self.is_video and not self.is_audio:
self.finished = True
def _have_type_cb(self, typefind, prob, caps):
self.mimetype = caps.to_string()
def _notify_caps_cb(self, pad, args):
caps = pad.get_negotiated_caps()
print "caps notify on", pad, ":", caps
if not caps:
return
# the caps are fixed
# We now get the total length of that stream
length = pad.get_peer().query(gst.QUERY_TOTAL, gst.FORMAT_TIME)
q = gst.query_new_position(gst.FORMAT_TIME)
#print "query refcount", q.__grefcount__
if pad.get_peer().query(q):
#print "query refcount", q.__grefcount__
length = q.structure["end"]
pos = q.structure["cur"]
format = q.structure["format"]
#print "got length", time_to_string(pos), time_to_string(length), format
else:
print "query didn't work"
#length = pad.get_peer().query(gst.QUERY_TOTAL, gst.FORMAT_TIME)
# We store the caps and length in the proper location
if "audio" in caps.to_string():
self.audiocaps = caps
......@@ -195,10 +245,23 @@ class Discoverer(gst.Pipeline):
def _new_decoded_pad_cb(self, dbin, pad, is_last):
# Does the file contain got audio or video ?
if "audio" in pad.get_caps().to_string():
caps = pad.get_caps()
print "new decoded pad", caps.to_string()
if "audio" in caps.to_string():
self.is_audio = True
elif "video" in pad.get_caps().to_string():
if caps.is_fixed():
print "have negotiated caps", caps
self.audiocaps = caps
return
elif "video" in caps.to_string():
self.is_video = True
if caps.is_fixed():
print "have negotiated caps", caps
self.videocaps = caps
return
else:
print "got a different caps..", caps
return
if is_last and not self.is_video and not self.is_audio:
self.finished = True
return
......@@ -208,20 +271,13 @@ class Discoverer(gst.Pipeline):
sinkpad = fakesink.get_pad("sink")
# ... and connect a callback for when the caps are fixed
sinkpad.connect("notify::caps", self._notify_caps_cb)
pad.link(sinkpad)
fakesink.set_state(gst.STATE_PLAYING)
if pad.link(sinkpad):
print "##### Couldn't link pad to fakesink"
#fakesink.set_state(gst.STATE_PLAYING)
def _found_tag_cb(self, dbin, source, tags):
self.tags.update(tags)
def do_iterate(self):
# this overrides the GstBin 'iterate' method
# if we have finished discovering we stop the iteration
if self.finished:
return False
# else we call the parent class method
return gst.Pipeline.do_iterate(self)
gobject.type_register(Discoverer)
def main(args):
......
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