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# -*- mode: python; coding: utf-8 -*-
#
# Pigment Python binding video example
#
# Copyright © 2006, 2007, 2008 Fluendo Embedded S.L.
#
# This library 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 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
#
# Author: Loïc Molinari <loic@fluendo.com>
import sys, pgm, gobject, gst
fps_label = None
# Key press handler
def on_key_press(viewport, event, pipeline):
# Terminate the mainloop on 'Escape' or 'q' key press event
if event.keyval == pgm.keysyms.q or event.keyval == pgm.keysyms.Escape:
pgm.main_quit()
# Switch fullscreen state
if event.keyval == pgm.keysyms.f:
viewport.fullscreen = not viewport.fullscreen
# Toggle fps display
elif event.keyval == pgm.keysyms.p:
global fps_label
canvas = viewport.get_canvas()
if fps_label == None:
add_fps_display(canvas, viewport)
else:
canvas.remove(fps_label)
fps_label = None
# Drag motion handler
def on_drag_motion(viewport, event, pipeline):
# Accept the drag if the extension of the first uri is a media file
if event.uri[0][-3:] in ("avi", "mpg", "ogg", "mkv", "mov", "wmv", "flv"):
return True
# Drag drop handler
def on_drag_drop(viewport, event, pipeline):
pipeline.set_state(gst.STATE_READY)
pipeline.set_property('uri', event.uri[0])
pipeline.set_state(gst.STATE_PLAYING)
# Terminate the mainloop on a delete event
def on_delete(viewport, event, pipeline):
pipeline.set_state(gst.STATE_NULL)
pgm.main_quit()
def add_fps_display(canvas, viewport):
global fps_label
fps_label = pgm.Text()
fps_label.bg_a = 0
fps_label.width = canvas.width/10.0
fps_label.height = canvas.height/20.0
fps_label.x = canvas.width - fps_label.width
fps_label.y = canvas.height - fps_label.height
fps_label.visible = True
canvas.add(pgm.DRAWABLE_NEAR, fps_label)
refresh_fps_display(viewport)
gobject.timeout_add(1000, refresh_fps_display, viewport)
def refresh_fps_display(viewport):
global fps_label
if fps_label != None:
fps_label.label = "%d fps" % viewport.frame_rate
return True
else:
return False
def main(args):
# OpenGL viewport creation
gl = pgm.viewport_factory_make('opengl')
gl.title = "Video drag 'n drop"
gl.alpha_blending = False
screen_ratio = float(gl.screen_size_mm[1])/gl.screen_size_mm[0]
gl.size = (800, 800*screen_ratio)
# Canvas and image drawable creation
cvs = pgm.Canvas()
cvs.size = (1.0, 1.0*screen_ratio)
img = pgm.Image()
# Bind the canvas to the OpenGL viewport
gl.set_canvas(cvs)
# Image properties
img.position = (0.0, 0.0, 0.0)
img.size = cvs.size
img.bg_color = (0, 0, 0, 0)
# A drawable needs to be shown
img.show()
# Add it to the middle layer of the canvas
cvs.add(pgm.DRAWABLE_MIDDLE, img)
# GStreamer pipeline setup
sink = gst.element_factory_make('pgmimagesink')
pipeline = gst.element_factory_make('playbin')
pipeline.set_property('video-sink', sink)
sink.set_property('image', img)
if (len(sys.argv) > 1):
pipeline.set_property('uri', sys.argv[1])
pipeline.set_state(gst.STATE_PLAYING)
# Let's start the mainloop
gl.connect('delete-event', on_delete, pipeline)
gl.connect('key-press-event', on_key_press, pipeline)
gl.connect('drag-motion-event', on_drag_motion, pipeline)
gl.connect('drag-drop-event', on_drag_drop, pipeline)
gl.show()
pgm.main()
if __name__ == '__main__':
sys.exit(main(sys.argv[1:]))
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