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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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79 lines
2.5 KiB
Python
79 lines
2.5 KiB
Python
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#!/usr/bin/env python3
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#
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# GStreamer
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#
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# Copyright (C) 2013 Thibault Saunier <tsaunier@gnome.org
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Library General Public
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# License as published by the Free Software Foundation; either
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# version 2 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Library General Public License for more details.
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#
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# You should have received a copy of the GNU Library General Public
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# License along with this library; if not, write to the
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# Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
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# Boston, MA 02110-1335, USA.
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import os
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import gi
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gi.require_version('Gst', '1.0')
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gi.require_version('GES', '1.0')
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from gi.repository import Gst, GES, GLib # noqa
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class Simple:
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def __init__(self, uri):
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timeline = GES.Timeline.new_audio_video()
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self.project = timeline.get_asset()
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self.project.connect("asset-added", self._asset_added_cb)
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self.project.connect("error-loading-asset", self._error_loading_asset_cb)
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self.project.create_asset(uri, GES.UriClip)
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self.layer = timeline.append_layer()
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self._create_pipeline(timeline)
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self.loop = GLib.MainLoop()
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def _create_pipeline(self, timeline):
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self.pipeline = GES.Pipeline()
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self.pipeline.set_timeline(timeline)
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bus = self.pipeline.get_bus()
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bus.add_signal_watch()
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bus.connect("message", self.bus_message_cb)
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def bus_message_cb(self, unused_bus, message):
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if message.type == Gst.MessageType.EOS:
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print("eos")
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self.loop.quit()
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elif message.type == Gst.MessageType.ERROR:
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error = message.parse_error()
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print("error %s" % error[1])
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self.loop.quit()
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def start(self):
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self.loop.run()
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def _asset_added_cb(self, project, asset):
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self.layer.add_asset(asset, 0, 0, Gst.SECOND * 5, GES.TrackType.UNKNOWN)
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self.pipeline.set_state(Gst.State.PLAYING)
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def _error_loading_asset_cb(self, project, error, asset_id, type):
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print("Could not load asset %s: %s" % (asset_id, error))
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self.loop.quit()
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if __name__ == "__main__":
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if len(os.sys.argv) != 2:
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print("You must specify a file URI")
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exit(-1)
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Gst.init(None)
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GES.init()
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simple = Simple(os.sys.argv[1])
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simple.start()
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