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#!/usr/bin/env python
#
# effect.py
#
# Copyright (C) 2011 Mathieu Duponchelle <seeed@laposte.net>
# Copyright (C) 2011 Luis de Bethencourt <luis.debethencourt@collabora.co.uk>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This program 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this program; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
import sys
import optparse
import glib
import gobject
gobject.threads_init()
import gst
import ges
class Effect:
def __init__(self, effects):
ges.init()
self.mainloop = glib.MainLoop()
self.timeline = ges.timeline_new_audio_video()
layer = ges.TimelineLayer()
self.src = ges.TimelineTestSource()
self.src.set_start(long(0))
self.src.set_duration(long(3000000000))
self.src.set_vpattern("smpte75")
layer.add_object(self.src)
self.timeline.add_layer(layer)
self.add_effects(effects)
self.pipeline = ges.TimelinePipeline()
self.pipeline.add_timeline(self.timeline)
bus = self.pipeline.get_bus()
bus.set_sync_handler(self.bus_handler)
def add_effects(self, effects):
for e in effects:
effect = ges.TrackParseLaunchEffect(e)
self.src.add_track_object(effect)
for track in self.timeline.get_tracks():
if track.get_caps().to_string() == \
"video/x-raw-yuv; video/x-raw-rgb":
print "setting effect: " + e
track.add_object(effect)
def bus_handler(self, unused_bus, message):
if message.type == gst.MESSAGE_ERROR:
print "ERROR"
self.mainloop.quit()
elif message.type == gst.MESSAGE_EOS:
print "Done"
self.mainloop.quit()
return gst.BUS_PASS
def run(self):
if (self.pipeline.set_state(gst.STATE_PLAYING) == \
gst.STATE_CHANGE_FAILURE):
print "Couldn't start pipeline"
self.mainloop.run()
def main(args):
usage = "usage: %s effect_name-1 .. effect_name-n\n" % args[0]
if len(args) < 2:
print usage + "using aging tv as a default instead"
args.append("agingtv")
parser = optparse.OptionParser (usage=usage)
(opts, args) = parser.parse_args ()
effect = Effect(args)
effect.run()
if __name__ == "__main__":
main(sys.argv)
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