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"""
tagplay.py
refactored based on Jukebox Activity
Copyright (C) 2007 Andy Wingo <wingo@pobox.com>
Copyright (C) 2007 Red Hat, Inc.
Copyright (C) 2008-2010 Kushal Das <kushal@fedoraproject.org>
Copyright (C) 2010 Walter Bender
"""
# 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 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
import logging
import os
import pygtk
pygtk.require('2.0')
import gobject
gobject.threads_init()
import pygst
pygst.require('0.10')
import gst
import gst.interfaces
import gtk
import urllib
def play_audio_from_file(lc, file_path):
""" Called from Show block of audio media """
if lc.gplay is not None and lc.gplay.player is not None:
if lc.gplay.player.playing:
lc.gplay.player.stop()
if lc.gplay.bin is not None:
lc.gplay.bin.destroy()
lc.gplay = Gplay(lc, lc.tw.canvas.width, lc.tw.canvas.height, 4, 3)
lc.gplay.start(file_path)
def play_movie_from_file(lc, filepath, x, y, w, h):
""" Called from Show block of video media """
if lc.gplay is not None and lc.gplay.player is not None:
if lc.gplay.player.playing:
lc.gplay.player.stop()
if lc.gplay.bin is not None:
lc.gplay.bin.destroy()
lc.gplay = Gplay(lc, x, y, w, h)
lc.gplay.start(filepath)
def stop_media(lc):
""" Called from Clean block and toolbar Stop button """
if lc.gplay == None:
return
if lc.gplay.player is not None:
lc.gplay.player.stop()
if lc.gplay.bin != None:
lc.gplay.bin.destroy()
lc.gplay = None
def media_playing(lc):
if lc.gplay == None:
return False
return lc.gplay.player.playing
class Gplay():
UPDATE_INTERVAL = 500
def __init__(self, lc, x, y, w, h):
self.player = None
self.uri = None
self.playlist = []
self.jobjectlist = []
self.playpath = None
self.only_audio = False
self.got_stream_info = False
self.currentplaying = 0
self.bin = gtk.Window()
self.videowidget = VideoWidget()
self.bin.add(self.videowidget)
self.bin.set_type_hint(gtk.gdk.WINDOW_TYPE_HINT_NORMAL)
self.bin.set_decorated(False)
if lc.tw.running_sugar:
self.bin.set_transient_for(lc.tw.activity)
self.bin.move(x, y + 108)
self.bin.resize(w, h)
self.bin.show_all()
self._want_document = True
def _player_eos_cb(self, widget):
logging.debug('end of stream')
def _player_error_cb(self, widget, message, detail):
self.player.stop()
self.player.set_uri(None)
logging.debug('Error: %s - %s' % (message, detail))
def _player_stream_info_cb(self, widget, stream_info):
if not len(stream_info) or self.got_stream_info:
return
GST_STREAM_TYPE_VIDEO = 2
only_audio = True
for item in stream_info:
if item.props.type == GST_STREAM_TYPE_VIDEO:
only_audio = False
self.only_audio = only_audio
self.got_stream_info = True
def start(self, uri=None):
self._want_document = False
self.playpath = os.path.dirname(uri)
if not uri:
return False
self.playlist.append('file://' + urllib.quote(os.path.abspath(uri)))
if not self.player:
# lazy init the player so that videowidget is realized
# and has a valid widget allocation
self.player = GstPlayer(self.videowidget)
self.player.connect('eos', self._player_eos_cb)
self.player.connect('error', self._player_error_cb)
self.player.connect('stream-info', self._player_stream_info_cb)
try:
if not self.currentplaying:
logging.info('Playing: ' + self.playlist[0])
self.player.set_uri(self.playlist[0])
self.currentplaying = 0
self.play_toggled()
self.show_all()
else:
pass
except:
pass
return False
def play_toggled(self):
if self.player.is_playing():
self.player.pause()
else:
if self.player.error:
pass
else:
self.player.play()
class GstPlayer(gobject.GObject):
__gsignals__ = {
'error': (gobject.SIGNAL_RUN_FIRST, None, [str, str]),
'eos': (gobject.SIGNAL_RUN_FIRST, None, []),
'stream-info': (gobject.SIGNAL_RUN_FIRST, None, [object])}
def __init__(self, videowidget):
gobject.GObject.__init__(self)
self.playing = False
self.error = False
self.player = gst.element_factory_make('playbin', 'player')
self.videowidget = videowidget
self._init_video_sink()
bus = self.player.get_bus()
bus.enable_sync_message_emission()
bus.add_signal_watch()
bus.connect('sync-message::element', self.on_sync_message)
bus.connect('message', self.on_message)
def set_uri(self, uri):
self.player.set_property('uri', uri)
def on_sync_message(self, bus, message):
if message.structure is None:
return
if message.structure.get_name() == 'prepare-xwindow-id':
self.videowidget.set_sink(message.src)
message.src.set_property('force-aspect-ratio', True)
def on_message(self, bus, message):
t = message.type
if t == gst.MESSAGE_ERROR:
err, debug = message.parse_error()
logging.debug('Error: %s - %s' % (err, debug))
self.error = True
self.emit('eos')
self.playing = False
self.emit('error', str(err), str(debug))
elif t == gst.MESSAGE_EOS:
self.emit('eos')
self.playing = False
elif t == gst.MESSAGE_STATE_CHANGED:
old, new, pen = message.parse_state_changed()
if old == gst.STATE_READY and new == gst.STATE_PAUSED:
self.emit('stream-info',
self.player.props.stream_info_value_array)
def _init_video_sink(self):
self.bin = gst.Bin()
videoscale = gst.element_factory_make('videoscale')
self.bin.add(videoscale)
pad = videoscale.get_pad('sink')
ghostpad = gst.GhostPad('sink', pad)
self.bin.add_pad(ghostpad)
videoscale.set_property('method', 0)
caps_string = 'video/x-raw-yuv, '
r = self.videowidget.get_allocation()
if r.width > 500 and r.height > 500:
# Sigh... xvimagesink on the XOs will scale the video to fit
# but ximagesink in Xephyr does not. So we live with unscaled
# video in Xephyr so that the XO can work right.
w = 480
h = float(w) / float(float(r.width) / float(r.height))
caps_string += 'width=%d, height=%d' % (w, h)
else:
caps_string += 'width=480, height=360'
caps = gst.Caps(caps_string)
self.filter = gst.element_factory_make('capsfilter', 'filter')
self.bin.add(self.filter)
self.filter.set_property('caps', caps)
conv = gst.element_factory_make('ffmpegcolorspace', 'conv')
self.bin.add(conv)
videosink = gst.element_factory_make('autovideosink')
self.bin.add(videosink)
gst.element_link_many(videoscale, self.filter, conv, videosink)
self.player.set_property('video-sink', self.bin)
def pause(self):
logging.debug('pausing player')
self.player.set_state(gst.STATE_PAUSED)
self.playing = False
def play(self):
logging.debug('playing player')
self.player.set_state(gst.STATE_PLAYING)
self.playing = True
self.error = False
def stop(self):
self.player.set_state(gst.STATE_NULL)
logging.debug('stopped player')
def get_state(self, timeout=1):
return self.player.get_state(timeout=timeout)
def is_playing(self):
return self.playing
class VideoWidget(gtk.DrawingArea):
def __init__(self):
gtk.DrawingArea.__init__(self)
self.set_events(gtk.gdk.EXPOSURE_MASK)
self.imagesink = None
self.unset_flags(gtk.DOUBLE_BUFFERED)
self.set_flags(gtk.APP_PAINTABLE)
def do_expose_event(self, event):
if self.imagesink:
self.imagesink.expose()
return False
else:
return True
def set_sink(self, sink):
assert self.window.xid
self.imagesink = sink
self.imagesink.set_xwindow_id(self.window.xid)
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