+++ /dev/null
-#!/usr/bin/env python
-
-# Simple media player with GStreamer
-#
-# Copyright (C) 2013 Antonio Ospite <ospite@studenti.unina.it>
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program 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 General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-# References:
-# http://pygstdocs.berlios.de/pygst-reference
-# https://core.fluendo.com/gstreamer/svn/trunk/gst-fluendo-gdlsink/test/ismdplay.py
-
-import sys
-import os
-
-import gobject
-gobject.threads_init()
-
-import gst
-
-# The player window will have a fixed width and height.
-# This is just to demonstrate the use of capabilities.
-WIDTH = 640
-HEIGHT = 300
-
-
-class CustomVideoBin(gst.Bin):
- def __init__(self):
- gst.Bin.__init__(self, 'CustomVideoBin')
-
- queue = gst.element_factory_make('queue', 'vqueue')
- self.add(queue)
-
- rescale = gst.element_factory_make("videoscale", "rescale")
- self.add(rescale)
-
- caps = gst.Caps("video/x-raw-yuv,format=(fourcc)AYUV,width=%d,height=%d,pixel-aspect-ratio=1/1" % (WIDTH, HEIGHT))
- capsfilter = gst.element_factory_make("capsfilter", "filter")
- capsfilter.set_property("caps", caps)
- self.add(capsfilter)
-
- colorspace = gst.element_factory_make("colorspace", "colorspace")
- self.add(colorspace)
-
- videosink = gst.element_factory_make("autovideosink", "vidoesink")
- self.add(videosink)
-
- gst.element_link_many(queue, rescale, capsfilter, colorspace, videosink)
- sink = queue.get_pad('sink')
- self.add_pad(gst.GhostPad('sink', sink))
-
-
-class CustomAudioBin(gst.Bin):
- def __init__(self):
- gst.Bin.__init__(self, 'CustomAudioBin')
-
- queue = gst.element_factory_make('queue', 'aqueue')
- self.add(queue)
-
- audioconvert = gst.element_factory_make("audioconvert", "audioconverter")
- self.add(audioconvert)
-
- audiosink = gst.element_factory_make("autoaudiosink", "audiosink")
- self.add(audiosink)
-
- gst.element_link_many(queue, audioconvert, audiosink)
- sink = queue.get_pad('sink')
- self.add_pad(gst.GhostPad('sink', sink))
-
-
-class CustomPlayBin(gst.Pipeline):
- __gproperties__ = {
- 'source': (gst.Element, "source", "Source element", gobject.PARAM_READABLE)
- }
-
- def __init__(self, uri=None):
- gst.Pipeline.__init__(self, 'CustomPlayBin')
-
- self._uri = uri
-
- self._playbin = gst.element_factory_make("playbin2", "playbin")
- self.add(self._playbin)
-
- self._playbin.set_property("uri", self._uri)
- self._playbin.set_property("video-sink", CustomVideoBin())
- self._playbin.set_property("audio-sink", CustomAudioBin())
-
- def set_uri(self, uri):
- self._uri = uri
- self._playbin.set_property("uri", self._uri)
-
-
-class GstPlayer:
- def __init__(self):
-
- # The user can require some action at End Of Stream
- self.eos_cb = None
-
- self.pipeline = CustomPlayBin()
-
- bus = self.pipeline.get_bus()
- bus.add_signal_watch()
- bus.connect('message::eos', self.on_eos)
- bus.connect('message::tag', self.on_tag)
- bus.connect('message::error', self.on_error)
- bus.connect('message::state-changed', self.on_state_changed)
-
- def on_eos(self, bus, msg):
- print 'on_eos'
- self.stop()
- if self.eos_cb:
- self.eos_cb()
-
- def on_tag(self, bus, msg):
- print 'on_tag:'
- taglist = msg.parse_tag()
- for key in taglist.keys():
- print '\t%s = %s' % (key, taglist[key])
-
- def on_error(self, bus, msg):
- print 'on_error'
- error, debug = msg.parse_error()
- print "Error: %s" % error, debug
- self.stop()
-
- def on_state_changed(self, bus, msg):
- print 'on_state_changed'
- if msg.src != self.pipeline:
- return
-
- old_state, new_state, pending = msg.parse_state_changed()
-
- def set_location(self, location):
- self.pipeline.set_uri(location)
-
- def play(self):
- self.pipeline.set_state(gst.STATE_PLAYING)
-
- def pause(self):
- self.pipeline.set_state(gst.STATE_PAUSED)
-
- def stop(self):
- self.pipeline.set_state(gst.STATE_NULL)
-
-
-class PlayerTUI():
- def __init__(self, location):
-
- self.player = GstPlayer()
- self.player.eos_cb = self.quit
-
- self.mainloop = gobject.MainLoop()
-
- self.player.set_location(location)
- self.player.play()
-
- gobject.io_add_watch(sys.stdin, gobject.IO_IN, self.on_stdin)
-
- try:
- self.mainloop.run()
- except KeyboardInterrupt:
- self.quit()
-
- def on_stdin(self, fd, event):
- # The user has to send a newline fo this to go on
- c = os.read(fd.fileno(), 1)
-
- if c == "q":
- self.quit()
- elif c == "s":
- self.player.pause()
- elif c == "r":
- self.player.play()
-
- return True
-
- def quit(self):
- self.player.stop()
- self.player = None
- self.mainloop.quit()
-
-
-def main(args):
- def usage():
- sys.stdout.write("usage: %s <URI-OF-MEDIA-FILE>\n" % args[0])
-
- if len(args) != 2:
- usage()
- sys.exit(1)
-
- if not gst.uri_is_valid(args[1]):
- sys.stderr.write("Error: Invalid URI: %s\n" % args[1])
- sys.exit(1)
-
- tui = PlayerTUI(args[1])
-
-if __name__ == '__main__':
- sys.exit(main(sys.argv))
projects / experiments / gstreamer.git / blobdiff