libervia-backend/libervia/cli/call_webrtc.py
Goffi 430f2d9354 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
2024-02-16 18:46:06 +01:00

135 lines
4.5 KiB
Python

#!/usr/bin/env python3
# Libervia CLI
# Copyright (C) 2009-2024 Jérôme Poisson (goffi@goffi.org)
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program 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 Affero General Public License for more details.
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from dataclasses import dataclass
from libervia.backend.tools.common import data_format
from libervia.frontends.tools import aio, jid
@dataclass
class CallData:
callee: jid.JID
sid: str | None = None
action_id: str | None = None
class WebRTCCall:
def __init__(self, host, profile: str, callee: jid.JID, **kwargs):
"""Create and setup a webRTC instance
@param profile: profile making or receiving the call
@param callee: peer jid
@param kwargs: extra kw args to use when instantiating WebRTC
"""
from libervia.frontends.tools import webrtc
aio.install_glib_asyncio_iteration()
self.host = host
self.profile = profile
self.webrtc = webrtc.WebRTC(host.bridge, profile, **kwargs)
self.webrtc.callee = callee
host.bridge.register_signal(
"ice_candidates_new", self.on_ice_candidates_new, "plugin"
)
host.bridge.register_signal("call_setup", self.on_call_setup, "plugin")
host.bridge.register_signal("call_ended", self.on_call_ended, "plugin")
@classmethod
async def make_webrtc_call(
cls,
host,
profile: str,
call_data: CallData,
**kwargs
) -> "WebRTCCall":
"""Create the webrtc_call instance
@param call_data: Call data of the command
@param kwargs: extra args used to instanciate WebRTCCall
"""
webrtc_call = cls(host, profile, call_data.callee, **kwargs)
if call_data.sid is None:
# we are making the call
await webrtc_call.start()
else:
# we are receiving the call
webrtc_call.sid = call_data.sid
if call_data.action_id is not None:
await host.bridge.action_launch(
call_data.action_id,
data_format.serialise({"cancelled": False}),
profile
)
return webrtc_call
@property
def sid(self) -> str | None:
return self.webrtc.sid
@sid.setter
def sid(self, new_sid: str | None) -> None:
self.webrtc.sid = new_sid
async def on_ice_candidates_new(
self, sid: str, candidates_s: str, profile: str
) -> None:
if sid != self.webrtc.sid or profile != self.profile:
return
self.webrtc.on_ice_candidates_new(
data_format.deserialise(candidates_s),
)
async def on_call_setup(self, sid: str, setup_data_s: str, profile: str) -> None:
if sid != self.webrtc.sid or profile != self.profile:
return
setup_data = data_format.deserialise(setup_data_s)
try:
role = setup_data["role"]
sdp = setup_data["sdp"]
except KeyError:
self.host.disp(f"Invalid setup data received: {setup_data}", error=True)
return
if role == "initiator":
self.webrtc.on_accepted_call(sdp, profile)
elif role == "responder":
await self.webrtc.answer_call(sdp, profile)
else:
self.host.disp(
f"Invalid role received during setup: {setup_data}", error=True
)
# we want to be sure that call is ended if user presses `Ctrl + c` or anything
# else stops the session.
self.host.add_on_quit_callback(
lambda: self.host.bridge.call_end(sid, "", profile)
)
async def on_call_ended(self, sid: str, data_s: str, profile: str) -> None:
if sid != self.webrtc.sid or profile != self.profile:
return
await self.webrtc.end_call()
await self.host.a_quit()
async def start(self):
"""Start a call.
To be used only if we are initiator
"""
await self.webrtc.setup_call("initiator")
self.webrtc.start_pipeline()