import pygst

 pygst.require("0.10")

 import gst

 import gobject

 class Media:

     def __init__(self, config):

         # set gstreamer basic options

         self.config = config

         self.pipe = ""

     def setup(self, filename, mux, vcodec, vbitrate,\

               fps, acodec, abitrate, width, height, port):

         self.filename = filename

         self.mux = mux

         self.vcodec = vcodec

         self.vbitrate = int(vbitrate)

         self.fps = int(fps)

         self.acodec = acodec

         self.abitrate = int(abitrate)

         self.width = int(width)

         self.height = int(height)

         self.port = int(port)

         ## Pipelines

         #queue ! videoscale ! video/x-raw-yuv,width=240,height=144\

         #! videorate ! ffenc_h263p bitrate=256000 me-method=2 \

         #! rtph263ppay ! udpsink  host=224.0.0.1 port=5000

         #audio/x-raw-int ! queue ! audioconvert ! faac ! rtpmp4gpay\

         #!  udpsink name=upd_audio host=224.0.0.1 port=5002

         self.pipe = "filesrc location=%s ! decodebin name=d ! queue ! videoscale !"\

                     "video/x-raw-yuv,width=(int)%d,height=(int)%d ! ffenc_h263p bitrate=%d"\

                     " me-method=2 ! rtph263ppay ! udpsink host=224.0.0.1 port=%d d. ! "\

                     "queue  ! audioconvert ! faac ! rtpmp4gpay ! udpsink name=udp_audio "\

                     "host=224.0.0.1 port=%d" % (self.filename, self.width, self.height,\

                                                 self.vbitrate, self.port, self.port+2)

         #self.pipe = "filesrc location=/tmp/mpg/cpm.mpg ! decodebin ! ffmpegcolorspace ! ximagesink"

         self.pipeline = gst.parse_launch(self.pipe)

     def play(self):

         print "Trying to play pipeline: %s" % self.pipe

         try:

             if (self.pipeline):

                 self.pipeline.set_state(gst.STATE_PLAYING)

         except gobject.GError, e:

             print "Error: " + str(e)

     def stop(self):

         print "Trying to stop pipeline: %s" % self.pipe

         try:

             if (self.pipeline):

                 self.pipeline.set_state(gst.STATE_NULL)

         except gobject.GError, e:

             print "Error: " + str(e)