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106 lines
5.8 KiB
Python
106 lines
5.8 KiB
Python
# Copyright (c) 2020, Matthew Waters <matthew@centricular.com>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This program 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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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this program; if not, write to the
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# Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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# Boston, MA 02110-1301, USA.
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import gi
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gi.require_version("GstValidate", "1.0")
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from gi.repository import GstValidate
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from observer import Signal
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from enums import Actions
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import logging
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l = logging.getLogger(__name__)
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class ActionObserver(object):
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def __init__(self):
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def _action_continue(val):
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return val not in [GstValidate.ActionReturn.ERROR, GstValidate.ActionReturn.ERROR_REPORTED]
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def _action_accum(previous, val):
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# we want to always keep any errors propagated
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if val in [GstValidate.ActionReturn.ERROR, GstValidate.ActionReturn.ERROR_REPORTED]:
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return val
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if previous in [GstValidate.ActionReturn.ERROR, GstValidate.ActionReturn.ERROR_REPORTED]:
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return previous
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# we want to always prefer async returns
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if previous in [GstValidate.ActionReturn.ASYNC, GstValidate.ActionReturn.INTERLACED]:
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return previous
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if val in [GstValidate.ActionReturn.ASYNC, GstValidate.ActionReturn.INTERLACED]:
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return val
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return val
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self.action = Signal(_action_continue, _action_accum)
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def _action(self, scenario, action):
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l.debug('executing action: ' + str(action.structure))
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return self.action.fire (Actions(action.structure.get_name()), action)
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def register_action_types(observer):
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if not isinstance(observer, ActionObserver):
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raise TypeError
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GstValidate.register_action_type(Actions.CREATE_OFFER.value,
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"webrtc", observer._action, None,
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"Instruct a create-offer to commence",
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GstValidate.ActionTypeFlags.NONE)
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GstValidate.register_action_type(Actions.CREATE_ANSWER.value,
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"webrtc", observer._action, None,
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"Create answer",
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GstValidate.ActionTypeFlags.NONE)
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GstValidate.register_action_type(Actions.WAIT_FOR_NEGOTIATION_STATE.value,
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"webrtc", observer._action, None,
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"Wait for a specific negotiation state to be reached",
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GstValidate.ActionTypeFlags.NONE)
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GstValidate.register_action_type(Actions.ADD_STREAM.value,
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"webrtc", observer._action, None,
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"Add a stream to the webrtcbin",
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GstValidate.ActionTypeFlags.NONE)
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GstValidate.register_action_type(Actions.ADD_DATA_CHANNEL.value,
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"webrtc", observer._action, None,
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"Add a data channel to the webrtcbin",
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GstValidate.ActionTypeFlags.NONE)
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GstValidate.register_action_type(Actions.SEND_DATA_CHANNEL_STRING.value,
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"webrtc", observer._action, None,
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"Send a message using a data channel",
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GstValidate.ActionTypeFlags.NONE)
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GstValidate.register_action_type(Actions.WAIT_FOR_DATA_CHANNEL_STATE.value,
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"webrtc", observer._action, None,
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"Wait for data channel to reach state",
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GstValidate.ActionTypeFlags.NONE)
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GstValidate.register_action_type(Actions.CLOSE_DATA_CHANNEL.value,
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"webrtc", observer._action, None,
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"Close a data channel",
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GstValidate.ActionTypeFlags.NONE)
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GstValidate.register_action_type(Actions.WAIT_FOR_DATA_CHANNEL.value,
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"webrtc", observer._action, None,
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"Wait for a data channel to appear",
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GstValidate.ActionTypeFlags.NONE)
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GstValidate.register_action_type(Actions.WAIT_FOR_DATA_CHANNEL_STRING.value,
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"webrtc", observer._action, None,
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"Wait for a data channel to receive a message",
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GstValidate.ActionTypeFlags.NONE)
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GstValidate.register_action_type(Actions.WAIT_FOR_NEGOTIATION_NEEDED.value,
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"webrtc", observer._action, None,
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"Wait for a the on-negotiation-needed signal to fire",
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GstValidate.ActionTypeFlags.NONE)
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GstValidate.register_action_type(Actions.SET_WEBRTC_OPTIONS.value,
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"webrtc", observer._action, None,
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"Set some webrtc options",
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GstValidate.ActionTypeFlags.NONE)
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