gajim-plural/gajim/common/multimedia_helpers.py

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# Copyright (C) 2009 Thibaut GIRKA <thib AT sitedethib.com>
#
# This file is part of Gajim.
#
# Gajim 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; version 3 only.
#
# Gajim 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 Gajim. If not, see <http://www.gnu.org/licenses/>.
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import gi
import logging
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gi.require_version('Gst', '1.0')
from gi.repository import Gst
log = logging.getLogger('gajim.c.multimedia_helpers')
class DeviceManager(object):
def __init__(self):
self.devices = {}
def detect(self):
self.devices = {}
def get_devices(self):
if not self.devices:
self.detect()
return self.devices
def detect_element(self, name, text, pipe='%s'):
if Gst.ElementFactory.find(name):
element = Gst.ElementFactory.make(name, '%spresencetest' % name)
if element is None:
log.warning('could not create %spresencetest', name)
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return
if hasattr(element.props, 'device'):
element.set_state(Gst.State.READY)
devices = element.get_properties('device')
if devices:
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self.devices[text % _('Default device')] = pipe % name
for device in devices:
if device is None:
continue
element.set_state(Gst.State.NULL)
element.set_property('device', device)
element.set_state(Gst.State.READY)
device_name = element.get_property('device-name')
self.devices[text % device_name] = pipe % \
'%s device=%s' % (name, device)
element.set_state(Gst.State.NULL)
else:
self.devices[text] = pipe % name
else:
log.info('element %s not found', name)
class AudioInputManager(DeviceManager):
def detect(self):
self.devices = {}
# Test src
self.detect_element('audiotestsrc', _('Audio test'),
'%s is-live=true name=gajim_vol')
# Auto src
self.detect_element('autoaudiosrc', _('Autodetect'),
'%s ! volume name=gajim_vol')
# Alsa src
self.detect_element('alsasrc', _('ALSA: %s'),
'%s ! volume name=gajim_vol')
# Pulseaudio src
self.detect_element('pulsesrc', _('Pulse: %s'),
'%s ! volume name=gajim_vol')
class AudioOutputManager(DeviceManager):
def detect(self):
self.devices = {}
# Fake sink
self.detect_element('fakesink', _('Fake audio output'))
# Auto sink
self.detect_element('autoaudiosink', _('Autodetect'))
# Alsa sink
self.detect_element('alsasink', _('ALSA: %s'), '%s sync=false')
# Pulseaudio sink
self.detect_element('pulsesink', _('Pulse: %s'), '%s sync=true')
class VideoInputManager(DeviceManager):
def detect(self):
self.devices = {}
# Test src
self.detect_element('videotestsrc', _('Video test'),
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'%s is-live=true ! video/x-raw,framerate=10/1')
# Auto src
self.detect_element('autovideosrc', _('Autodetect'))
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# V4L2 src
self.detect_element('v4l2src', _('V4L2: %s'))
# Funny things, just to test...
# self.devices['GOOM'] = 'audiotestsrc ! goom'
self.detect_element('ximagesrc', _('Screen'), '%s ! ffmpegcolorspace')
class VideoOutputManager(DeviceManager):
def detect(self):
self.devices = {}
# Fake video output
self.detect_element('fakesink', _('Fake video output'))
# Auto sink
self.detect_element('xvimagesink',
_('X Window System (X11/XShm/Xv): %s'))
# ximagesink
self.detect_element('ximagesink', _('X Window System (without Xv)'))
self.detect_element('autovideosink', _('Autodetect'))