port dvd player example from C not yet working

Original commit message from CVS:
port dvd player example from C
not yet working

examples/gst/Makefile.am

@@ -1,4 +1,5 @@
 EXTRA_DIST = \
 	f2f.py \
 	oggplay.py \
-	cp.py
+	cp.py \
+	dvdplay.py

examples/gst/dvdplay.py

@@ -0,0 +1,186 @@
+#!/usr/bin/env python2.2
+#
+# gst-python
+# Copyright (C) 2002 David I. Lehn
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Library 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
+# Library General Public License for more details.
+#
+# You should have received a copy of the GNU Library 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: David I. Lehn <dlehn@vt.edu>
+#
+
+import sys
+#from gnome import *
+from gstreamer import *
+from gobject import GObject
+import gtk
+
+class DVDPlay(object):
+   def __init__(self):
+      pass
+
+   def idle(self, pipeline):
+      pipeline.iterate()
+      return 1
+
+   def eof(self, sender):
+      print 'EOS, quiting'
+      sys.exit(0)
+      
+   def mpegparse_newpad(self, parser, pad, pipeline):
+      print '***** a new pad %s was created' % pad.get_name()
+      if pad.get_name()[:6] == 'video_':
+         pad.connect(self.v_queue.get_pad('sink'))
+         self.pipeline.add(self.v_thread)
+         self.v_thread.set_state(STATE_PLAYING)
+      elif pad.get_name() == 'private_stream_1.0':
+         pad.connect(self.a_queue.get_pad('sink'))
+         self.pipeline.add(self.a_thread)
+         self.a_thread.set_state(STATE_PLAYING);
+      else:
+         print 'unknown pad: %s' % pad.get_name()
+
+   def mpegparse_have_size(self, videosink, width, height):
+      self.gtk_socket.set_usize(width,height)
+      self.appwindow.show_all()
+
+   def main(self):
+      if len(sys.argv) < 5:
+         print 'usage: %s dvdlocation title chapter angle' % argv[0]
+         return -1
+
+      self.location = sys.argv[1]
+      self.title = int(sys.argv[2])
+      self.chapter = int(sys.argv[3])
+      self.angle = int(sys.argv[4])
+
+      #gst_init(&argc,&argv);
+      #gnome_init('MPEG2 Video player','0.0.1',argc,argv);
+
+      ret = self.build()
+      if ret:
+         return ret
+
+      ret = self.run()
+      return ret
+
+   def build_video_thread(self):
+      # ***** pre-construct the video thread *****
+      self.v_thread = gst_thread_new('v_thread')
+      assert self.v_thread
+
+      self.v_queue = gst_elementfactory_make('queue','v_queue')
+      assert self.v_queue
+
+      self.v_decode = gst_elementfactory_make('mpeg2dec','decode_video')
+      assert self.v_decode
+
+      self.color = gst_elementfactory_make('colorspace','color')
+      assert self.color
+
+      self.show = gst_elementfactory_make('videosink','show')
+      assert self.show
+
+      for e in (self.v_queue, self.v_decode, self.color, self.show):
+         self.v_thread.add(e)
+
+      self.v_queue.connect('src',self.v_decode,'sink')
+      self.v_decode.connect('src',self.color,'sink')
+      self.color.connect('src',self.show,'sink')
+
+   def build_audio_thread(self):
+      # ***** pre-construct the audio thread *****
+      self.a_thread = gst_thread_new('a_thread')
+      assert self.a_thread
+
+      self.a_queue = gst_elementfactory_make('queue','a_queue')
+      assert self.a_queue
+
+      self.a_decode = gst_elementfactory_make('a52dec','decode_audio')
+      assert self.a_decode
+
+      self.osssink = gst_elementfactory_make('osssink','osssink')
+      assert self.osssink
+
+      for e in (self.a_queue, self.a_decode, self.osssink):
+         self.a_thread.add(e)
+
+      self.a_queue.connect('src',self.a_decode,'sink')
+      self.a_decode.connect('src',self.osssink,'sink')
+
+   def build(self):
+      # ***** construct the main pipeline *****
+      self.pipeline = gst_pipeline_new('pipeline')
+      assert self.pipeline
+
+      self.src = gst_elementfactory_make('dvdsrc','src');
+      assert self.src
+
+      self.src.set_property('location', self.location)
+      self.src.set_property('title', self.title)
+      self.src.set_property('chapter', self.chapter)
+      self.src.set_property('angle', self.angle)
+
+      self.parse = gst_elementfactory_make('mpegdemux','parse')
+      assert self.parse
+
+      self.pipeline.add(self.src)
+      self.pipeline.add(self.parse)
+
+      self.src.connect('src',self.parse,'sink')
+
+      # pre-construct the audio/video threads
+      self.build_video_thread()
+      self.build_audio_thread()
+
+      # ***** construct the GUI *****
+      #self.appwindow = gnome_app_new('DVD Player','DVD Player')
+
+      #self.gtk_socket = gtk_socket_new ()
+      #gtk_socket.show()
+
+      #gnome_app_set_contents(GNOME_APP(appwindow),
+            #GTK_WIDGET(gtk_socket));
+
+      #gtk_widget_realize (gtk_socket);
+      #gtk_socket_steal (GTK_SOCKET (gtk_socket), 
+            #gst_util_get_int_arg (GTK_OBJECT(show), 'xid'));
+
+      GObject.connect(self.parse,'new_pad',self.mpegparse_newpad, self.pipeline)
+      GObject.connect(self.src,'eos',self.eof)
+      #GObject.connect(show,'have_size',self.mpegparse_have_size, self.pipeline)
+
+      return 0
+
+   def run(self):
+      print 'setting to PLAYING state'
+
+      self.pipeline.set_state(STATE_PLAYING)
+
+      gtk.idle_add(self.idle,self.pipeline)
+
+      #gtk.threads_enter()
+      gtk.main()
+      #gtk.threads_leave()
+
+      self.pipeline.set_state(STATE_NULL)
+
+      return 0
+
+if __name__ == '__main__':
+   #gst_debug_set_categories(-1)
+   player = DVDPlay()
+   ret = player.main()
+   sys.exit(ret)

examples/gstreamer/Makefile.am

@@ -1,4 +1,5 @@
 EXTRA_DIST = \
 	f2f.py \
 	oggplay.py \
-	cp.py
+	cp.py \
+	dvdplay.py

examples/gstreamer/dvdplay.py

@@ -0,0 +1,186 @@
+#!/usr/bin/env python2.2
+#
+# gst-python
+# Copyright (C) 2002 David I. Lehn
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Library 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
+# Library General Public License for more details.
+#
+# You should have received a copy of the GNU Library 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: David I. Lehn <dlehn@vt.edu>
+#
+
+import sys
+#from gnome import *
+from gstreamer import *
+from gobject import GObject
+import gtk
+
+class DVDPlay(object):
+   def __init__(self):
+      pass
+
+   def idle(self, pipeline):
+      pipeline.iterate()
+      return 1
+
+   def eof(self, sender):
+      print 'EOS, quiting'
+      sys.exit(0)
+      
+   def mpegparse_newpad(self, parser, pad, pipeline):
+      print '***** a new pad %s was created' % pad.get_name()
+      if pad.get_name()[:6] == 'video_':
+         pad.connect(self.v_queue.get_pad('sink'))
+         self.pipeline.add(self.v_thread)
+         self.v_thread.set_state(STATE_PLAYING)
+      elif pad.get_name() == 'private_stream_1.0':
+         pad.connect(self.a_queue.get_pad('sink'))
+         self.pipeline.add(self.a_thread)
+         self.a_thread.set_state(STATE_PLAYING);
+      else:
+         print 'unknown pad: %s' % pad.get_name()
+
+   def mpegparse_have_size(self, videosink, width, height):
+      self.gtk_socket.set_usize(width,height)
+      self.appwindow.show_all()
+
+   def main(self):
+      if len(sys.argv) < 5:
+         print 'usage: %s dvdlocation title chapter angle' % argv[0]
+         return -1
+
+      self.location = sys.argv[1]
+      self.title = int(sys.argv[2])
+      self.chapter = int(sys.argv[3])
+      self.angle = int(sys.argv[4])
+
+      #gst_init(&argc,&argv);
+      #gnome_init('MPEG2 Video player','0.0.1',argc,argv);
+
+      ret = self.build()
+      if ret:
+         return ret
+
+      ret = self.run()
+      return ret
+
+   def build_video_thread(self):
+      # ***** pre-construct the video thread *****
+      self.v_thread = gst_thread_new('v_thread')
+      assert self.v_thread
+
+      self.v_queue = gst_elementfactory_make('queue','v_queue')
+      assert self.v_queue
+
+      self.v_decode = gst_elementfactory_make('mpeg2dec','decode_video')
+      assert self.v_decode
+
+      self.color = gst_elementfactory_make('colorspace','color')
+      assert self.color
+
+      self.show = gst_elementfactory_make('videosink','show')
+      assert self.show
+
+      for e in (self.v_queue, self.v_decode, self.color, self.show):
+         self.v_thread.add(e)
+
+      self.v_queue.connect('src',self.v_decode,'sink')
+      self.v_decode.connect('src',self.color,'sink')
+      self.color.connect('src',self.show,'sink')
+
+   def build_audio_thread(self):
+      # ***** pre-construct the audio thread *****
+      self.a_thread = gst_thread_new('a_thread')
+      assert self.a_thread
+
+      self.a_queue = gst_elementfactory_make('queue','a_queue')
+      assert self.a_queue
+
+      self.a_decode = gst_elementfactory_make('a52dec','decode_audio')
+      assert self.a_decode
+
+      self.osssink = gst_elementfactory_make('osssink','osssink')
+      assert self.osssink
+
+      for e in (self.a_queue, self.a_decode, self.osssink):
+         self.a_thread.add(e)
+
+      self.a_queue.connect('src',self.a_decode,'sink')
+      self.a_decode.connect('src',self.osssink,'sink')
+
+   def build(self):
+      # ***** construct the main pipeline *****
+      self.pipeline = gst_pipeline_new('pipeline')
+      assert self.pipeline
+
+      self.src = gst_elementfactory_make('dvdsrc','src');
+      assert self.src
+
+      self.src.set_property('location', self.location)
+      self.src.set_property('title', self.title)
+      self.src.set_property('chapter', self.chapter)
+      self.src.set_property('angle', self.angle)
+
+      self.parse = gst_elementfactory_make('mpegdemux','parse')
+      assert self.parse
+
+      self.pipeline.add(self.src)
+      self.pipeline.add(self.parse)
+
+      self.src.connect('src',self.parse,'sink')
+
+      # pre-construct the audio/video threads
+      self.build_video_thread()
+      self.build_audio_thread()
+
+      # ***** construct the GUI *****
+      #self.appwindow = gnome_app_new('DVD Player','DVD Player')
+
+      #self.gtk_socket = gtk_socket_new ()
+      #gtk_socket.show()
+
+      #gnome_app_set_contents(GNOME_APP(appwindow),
+            #GTK_WIDGET(gtk_socket));
+
+      #gtk_widget_realize (gtk_socket);
+      #gtk_socket_steal (GTK_SOCKET (gtk_socket), 
+            #gst_util_get_int_arg (GTK_OBJECT(show), 'xid'));
+
+      GObject.connect(self.parse,'new_pad',self.mpegparse_newpad, self.pipeline)
+      GObject.connect(self.src,'eos',self.eof)
+      #GObject.connect(show,'have_size',self.mpegparse_have_size, self.pipeline)
+
+      return 0
+
+   def run(self):
+      print 'setting to PLAYING state'
+
+      self.pipeline.set_state(STATE_PLAYING)
+
+      gtk.idle_add(self.idle,self.pipeline)
+
+      #gtk.threads_enter()
+      gtk.main()
+      #gtk.threads_leave()
+
+      self.pipeline.set_state(STATE_NULL)
+
+      return 0
+
+if __name__ == '__main__':
+   #gst_debug_set_categories(-1)
+   player = DVDPlay()
+   ret = player.main()
+   sys.exit(ret)