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examples/remuxer.py: Code dump, work in progress...
Original commit message from CVS: 2006-04-07 Andy Wingo <wingo@pobox.com> * examples/remuxer.py: Code dump, work in progress...
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Andy Wingo
parent
2afe4a0c32
commit
6bdf0cec7b
2 changed files with 159 additions and 18 deletions
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@ -1,3 +1,7 @@
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2006-04-07 Andy Wingo <wingo@pobox.com>
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* examples/remuxer.py: Code dump, work in progress...
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2006-04-07 Edward Hervey <edward@fluendo.com>
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* testsuite/test_ghostpad.py:
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@ -51,6 +51,9 @@ class GstPlayer:
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def set_location(self, location):
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self.player.set_property('uri', location)
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def get_location(self):
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return self.player.get_property('uri')
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def query_position(self):
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"Returns a (position, duration) tuple"
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try:
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@ -253,24 +256,33 @@ class ProgressDialog(gtk.Dialog):
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progress.show()
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vbox.pack_start(progress, False)
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self.progresstext = label = gtk.Label('<i>%s</i>' % task)
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self.progresstext = label = gtk.Label('')
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label.set_use_markup(True)
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label.set_alignment(0.0, 0.0)
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label.show()
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vbox.pack_start(label)
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self.set_task(task)
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def set_task(self, task):
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self.progresstext.set_markup('<i>%s</i>' % task)
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UNKNOWN = 0
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SUCCESS = 1
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FAILURE = 2
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CANCELLED = 3
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class RemuxProgressDialog(ProgressDialog):
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def __init__(self, parent, start, stop):
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ProgressDialog.__init__(self,
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"Writing to disk",
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('Your ears need to be periodically cleaned to '
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'maintain a decent level of hearing. The '
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'process will be quick and painless.'),
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'Removing excess ear wax with a golf pencil',
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('Writing the selected segment of your '
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'media file to disk. This may take some '
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'time depending on the file size.'),
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'Starting media pipeline',
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parent,
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gtk.DIALOG_MODAL | gtk.DIALOG_DESTROY_WITH_PARENT,
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(gtk.STOCK_CANCEL, gtk.RESPONSE_REJECT,
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gtk.STOCK_CLOSE, gtk.RESPONSE_ACCEPT))
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(gtk.STOCK_CANCEL, CANCELLED,
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gtk.STOCK_CLOSE, SUCCESS))
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self.start = start
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self.stop = stop
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self.update_position(start)
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@ -285,33 +297,150 @@ class RemuxProgressDialog(ProgressDialog):
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self.progress.set_fraction(1.0 - float(remaining) / (self.stop - self.start))
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def set_completed(self, completed):
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self.set_response_sensitive(gtk.RESPONSE_ACCEPT, completed)
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self.set_response_sensitive(CANCELLED, not completed)
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self.set_response_sensitive(SUCCESS, completed)
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class Remuxer(gst.Pipeline):
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__gsignals__ = {'done': (gobject.SIGNAL_RUN_LAST, None, (int,))}
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def __init__(self, fromuri, touri, start, stop):
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gst.Pipeline.__init__(self)
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self.__gobject_init__()
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assert start >= 0
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assert stop > start
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self.src = gst.element_make_from_uri(gst.URI_SRC, fromuri)
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self.remuxbin = RemuxBin()
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self.sink = gst.element_make_from_uri(gst.URI_SINK, touri)
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self.resolution = UNKNOWN
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self.add(self.src, self.remuxbin, self.sink)
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self.src.link(self.remuxbin)
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self.remuxbin.link(self.sink)
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self.window = None
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self.pdialog = None
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self.start_time = start
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self.stop_time = stop
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def _start_queries(self):
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pass
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def _stop_queries(self):
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pass
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def _bus_watch(self, bus, message):
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if message.type == gst.MESSAGE_ERROR:
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print 'error', message
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self._stop_queries()
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m = gtk.MessageDialog(self.window,
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gtk.DIALOG_MODAL|gtk.DIALOG_DESTROY_WITH_PARENT,
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gtk.MESSAGE_ERROR,
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gtk.BUTTONS_CLOSE,
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"Error processing file")
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txt = 'There was an error processing your file: %r' % message
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m.format_secondary_text(txt)
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m.run()
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m.destroy()
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self.response(FAILURE)
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elif message.type == gst.MESSAGE_WARNING:
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print 'warning', message
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elif message.type == gst.MESSAGE_EOS:
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print 'eos, woot'
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self.pdialog.set_task('Finished')
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self.pdialog.update_position(self.stop_time)
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self._stop_queries()
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self.pdialog.set_completed(True)
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elif message.type == gst.MESSAGE_STATE_CHANGED:
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if message.src == self:
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print message
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old, new, pending = message.parse_state_changed()
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if ((old, new, pending) ==
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(gst.STATE_READY, gst.STATE_PAUSED,
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gst.STATE_VOID_PENDING)):
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self.pdialog.set_task('Processing file')
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self.pdialog.update_position(self.start_time)
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self._start_queries()
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self.set_state(gst.STATE_PLAYING)
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def response(self, response):
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assert self.resolution == UNKNOWN
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self.resolution = response
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self.set_state(gst.STATE_NULL)
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self.pdialog.destroy()
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self.pdialog = None
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self.emit('done', response)
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def start(self, main_window):
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bus = self.get_bus()
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bus.add_signal_watch()
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bus.connect('message', self._bus_watch)
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self.window = main_window
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if self.window:
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# can be None if we are debugging...
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self.window.set_sensitive(False)
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self.pdialog = RemuxProgressDialog(main_window, self.start_time,
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self.stop_time)
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self.pdialog.show()
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self.pdialog.connect('response', lambda w, r: self.response(r))
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self.set_state(gst.STATE_PAUSED)
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def run(self, main_window):
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self.start(None)
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loop = gobject.MainLoop()
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self.connect('done', lambda *x: gobject.idle_add(loop.quit))
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loop.run()
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return self.resolution
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class RemuxBin(gst.Bin):
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def __init__(self):
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self.__gobject_init__()
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self.parsers = self._find_parsers()
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self.demux = gst.element_factory_make('oggdemux')
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self.mux = gst.element_factory_make('oggmux')
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self.sink = gst.element_make_from_uri(gst.URI_SINK, touri)
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self.add(self.src, self.demux, self.mux, self.sink)
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self.add(self.demux, self.mux)
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self.src.link(self.demux)
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self.mux.link(self.sink)
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self.add_pad(gst.GhostPad('sink', self.demux.get_pad('sink')))
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self.add_pad(gst.GhostPad('src', self.mux.get_pad('src')))
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self.demux.connect('pad-added', self._new_demuxed_pad)
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self.demux.connect('no-more-pads', self._no_more_pads)
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def _find_parsers(self):
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registry = gst.registry_get_default()
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ret = {}
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for f in registry.get_feature_list(gst.ElementFactory):
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if f.get_klass().find('Parser') >= 0:
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for t in f.get_static_pad_templates():
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if t.direction == gst.PAD_SINK:
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for s in t.get_caps():
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ret[s.get_name()] = f.get_name()
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break
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return ret
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def _new_demuxed_pad(self, element, pad):
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pad.link(self.mux.get_pad('sink_%d'))
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format = pad.get_caps()[0].get_name()
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if format not in self.parsers:
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self.async_error("Unsupported media type: %s", format)
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return
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parser = gst.element_factory_make(self.parsers[format])
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self.add(parser)
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parser.set_state(gst.STATE_PAUSED)
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pad.link(parser.get_compatible_pad(pad))
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parser.link(self.mux)
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def _no_more_pads(self, element):
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# this is when we should commit to paused or something
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pass
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def run(self):
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self.set_state(gst.STATE_PLAYING)
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class PlayerWindow(gtk.Window):
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UPDATE_INTERVAL = 500
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@ -406,7 +535,7 @@ class PlayerWindow(gtk.Window):
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buttonbox.show()
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table.attach(buttonbox, 2, 3, 1, 2, 0, 0)
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button = gtk.Button("_Render to disk")
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button = gtk.Button("_Write to disk")
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button.set_property('image',
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gtk.image_new_from_stock(gtk.STOCK_SAVE_AS,
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gtk.ICON_SIZE_BUTTON))
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@ -415,6 +544,14 @@ class PlayerWindow(gtk.Window):
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self.cutin.connect('notify::time', lambda *x: self.check_cutout())
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self.cutout.connect('notify::time', lambda *x: self.check_cutin())
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button.connect('clicked', lambda *x: self.do_remux())
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def do_remux(self):
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in_uri = self.player.get_location()
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out_uri = in_uri[:-4] + '-remuxed.ogg'
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r = Remuxer(in_uri, out_uri,
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self.cutin.get_time(), self.cutout.get_time())
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r.run(self)
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def check_cutout(self):
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if self.cutout.get_time() <= self.cutin.get_time():
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