Hello,
I am trying to apply effects on video textures. Previously I tried,
without success, to clone a video texture. This time I tried to use the
"live" redirection of a texture. I works!
Issues:
* Gst pipeline must be in a pause/play state
* Gst bus connections slow down video play back (see code below)
So here is the program I ended up with. Any other way to accomplish the
same in a cleaner way?
#!/usr/bin/python
import clutter
from clutter import cluttergst
from clutter import tidy
import gst
actor = None
stage = None
trans = False
def on_message(bus, message):
global actor
global stage
global trans
t = message.type
print 'msg_type:', t
if t == gst.MESSAGE_STATE_CHANGED:
(s1,s2,s3) = message.parse_state_changed()
print s1,s2,s3
if s1 == gst.STATE_PAUSED and s2 == gst.STATE_PLAYING:
# We started to play
print 'Rolling...'
# redirect video to another texture
fbo = clutter.texture_new_from_actor(actor)
fbo.set_position(192*6, 0)
fbo.show()
stage.add(fbo)
# create reflect effect on redirected texture
reflect = tidy.TextureReflection(fbo)
reflect.set_position(0, 108*6)
reflect.show()
stage.add(reflect)
trans = True
# video is jerky if this is not done
# even tho this handler is called only 3 or 4 times
# too much locking inside gtk/gst?
bus.disconnect_by_func(on_message)
stage = clutter.Stage()
stage.set_property('fullscreen', True)
actor = cluttergst.VideoTexture()
actor.set_filename("/home/kashyapa/Videos/Warren.mp4")
#(x, y) = stage.get_size()
(x, y) = (192*6, 108*6)
actor.set_size(x, y)
actor.set_playing(True)
actor.show()
stage.add(actor)
playbin = actor.get_playbin()
bus = playbin.get_bus()
bus.connect('message', on_message)
stage.show_all()
clutter.main()
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