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annotate libervia/cli/call_webrtc.py @ 4210:9218d4331bb2

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cli (call): `tui` output implementation: - Moved original UI to a separated class, and use if with the `simple` output - By default, best output is automatically selected. For now `gui` is selected if possible, and `simple` is used as fallback. - The new `tui` output can be used to have the videos directly embedded in the terminal, either with real videos for compatible terminal emulators, or with Unicode blocks. - Text contrôls are used for both `simple` and `tui` outputs - several options can be used with `--oo` (will be documented in next commit). rel 428
author Goffi <goffi@goffi.org>
date Fri, 16 Feb 2024 18:46:06 +0100
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4210
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1 #!/usr/bin/env python3
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2
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3 # Libervia CLI
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4 # Copyright (C) 2009-2024 Jérôme Poisson (goffi@goffi.org)
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5
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6 # This program is free software: you can redistribute it and/or modify
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7 # it under the terms of the GNU Affero General Public License as published by
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8 # the Free Software Foundation, either version 3 of the License, or
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9 # (at your option) any later version.
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10
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11 # This program is distributed in the hope that it will be useful,
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12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 # GNU Affero General Public License for more details.
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15
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16 # You should have received a copy of the GNU Affero General Public License
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17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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18
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19 from dataclasses import dataclass
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20
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21 from libervia.backend.tools.common import data_format
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22 from libervia.frontends.tools import aio, jid
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23
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24
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25 @dataclass
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26 class CallData:
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27 callee: jid.JID
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28 sid: str | None = None
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29 action_id: str | None = None
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30
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31
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32 class WebRTCCall:
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33 def __init__(self, host, profile: str, callee: jid.JID, **kwargs):
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34 """Create and setup a webRTC instance
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35
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36 @param profile: profile making or receiving the call
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37 @param callee: peer jid
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38 @param kwargs: extra kw args to use when instantiating WebRTC
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39 """
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40 from libervia.frontends.tools import webrtc
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41
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42 aio.install_glib_asyncio_iteration()
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43 self.host = host
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44 self.profile = profile
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45 self.webrtc = webrtc.WebRTC(host.bridge, profile, **kwargs)
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46 self.webrtc.callee = callee
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47 host.bridge.register_signal(
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48 "ice_candidates_new", self.on_ice_candidates_new, "plugin"
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49 )
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50 host.bridge.register_signal("call_setup", self.on_call_setup, "plugin")
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51 host.bridge.register_signal("call_ended", self.on_call_ended, "plugin")
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52
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53 @classmethod
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54 async def make_webrtc_call(
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55 cls,
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56 host,
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57 profile: str,
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58 call_data: CallData,
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59 **kwargs
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60 ) -> "WebRTCCall":
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61 """Create the webrtc_call instance
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62
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63 @param call_data: Call data of the command
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64 @param kwargs: extra args used to instanciate WebRTCCall
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65
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66 """
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67 webrtc_call = cls(host, profile, call_data.callee, **kwargs)
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68 if call_data.sid is None:
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69 # we are making the call
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70 await webrtc_call.start()
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71 else:
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72 # we are receiving the call
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73 webrtc_call.sid = call_data.sid
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74 if call_data.action_id is not None:
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75 await host.bridge.action_launch(
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76 call_data.action_id,
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77 data_format.serialise({"cancelled": False}),
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78 profile
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79 )
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80 return webrtc_call
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81
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82 @property
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83 def sid(self) -> str | None:
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84 return self.webrtc.sid
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85
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86 @sid.setter
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87 def sid(self, new_sid: str | None) -> None:
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88 self.webrtc.sid = new_sid
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89
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90 async def on_ice_candidates_new(
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91 self, sid: str, candidates_s: str, profile: str
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92 ) -> None:
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93 if sid != self.webrtc.sid or profile != self.profile:
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94 return
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95 self.webrtc.on_ice_candidates_new(
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96 data_format.deserialise(candidates_s),
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97 )
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98
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99 async def on_call_setup(self, sid: str, setup_data_s: str, profile: str) -> None:
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100 if sid != self.webrtc.sid or profile != self.profile:
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101 return
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102 setup_data = data_format.deserialise(setup_data_s)
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103 try:
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104 role = setup_data["role"]
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105 sdp = setup_data["sdp"]
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106 except KeyError:
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107 self.host.disp(f"Invalid setup data received: {setup_data}", error=True)
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108 return
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109 if role == "initiator":
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110 self.webrtc.on_accepted_call(sdp, profile)
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111 elif role == "responder":
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112 await self.webrtc.answer_call(sdp, profile)
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113 else:
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114 self.host.disp(
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115 f"Invalid role received during setup: {setup_data}", error=True
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116 )
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117 # we want to be sure that call is ended if user presses `Ctrl + c` or anything
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118 # else stops the session.
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119 self.host.add_on_quit_callback(
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120 lambda: self.host.bridge.call_end(sid, "", profile)
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121 )
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122
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123 async def on_call_ended(self, sid: str, data_s: str, profile: str) -> None:
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124 if sid != self.webrtc.sid or profile != self.profile:
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125 return
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126 await self.webrtc.end_call()
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127 await self.host.a_quit()
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128
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129 async def start(self):
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130 """Start a call.
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131
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132 To be used only if we are initiator
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133 """
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134 await self.webrtc.setup_call("initiator")
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135 self.webrtc.start_pipeline()