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annotate libervia/frontends/tools/webrtc.py @ 4145:970b6209526a

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frontends (tools/webrtc): Better message on Python override missing: raise an exception instead of simple `print` to stop loading the module, and show a more detailed message with the package to install.
author Goffi <goffi@goffi.org>
date Thu, 02 Nov 2023 12:11:21 +0100
parents 6745c6bd4c7a
children 60d107f2178a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #!/usr/bin/env python3
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2
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3 # Libervia WebRTC implementation
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4 # Copyright (C) 2009-2023 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 import gi
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20 gi.require_versions({
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21 "Gst": "1.0",
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22 "GstWebRTC": "1.0"
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23 })
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24 from gi.repository import Gst, GstWebRTC, GstSdp
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25
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26 from libervia.backend.core import exceptions
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27
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28 try:
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29 from gi.overrides import Gst as _
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30 except ImportError:
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31 raise exceptions.MissingModule(
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32 "No GStreamer Python overrides available. Please install relevant packages on "
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33 "your system (e.g., `python3-gst-1.0` on Debian and derivatives)."
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34 )
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35 import asyncio
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36 from dataclasses import dataclass
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37 from datetime import datetime
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38 import logging
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39 import re
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40 from typing import Callable
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41 from urllib.parse import quote_plus
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42
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43 from libervia.backend.tools.common import data_format
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44 from libervia.frontends.tools import aio
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45
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46
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47 log = logging.getLogger(__name__)
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48
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49 Gst.init(None)
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50
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51 SOURCES_AUTO = "auto"
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52 SOURCES_TEST = "test"
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53 SINKS_APP = "app"
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54 SINKS_AUTO = "auto"
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55 SINKS_TEST = "test"
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56
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57
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58 @dataclass
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59 class AppSinkData:
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60 local_video_cb: Callable
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61 remote_video_cb: Callable
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62
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63
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64 class WebRTC:
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65 """GSTreamer based WebRTC implementation for audio and video communication.
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66
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67 This class encapsulates the WebRTC functionalities required for initiating and
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68 handling audio and video calls.
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69 """
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70
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71 def __init__(
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72 self,
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73 bridge,
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74 profile: str,
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75 sources: str = SOURCES_AUTO,
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76 sinks: str = SINKS_AUTO,
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77 appsink_data: AppSinkData | None = None,
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78 reset_cb: Callable | None = None,
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79 ) -> None:
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80 self.main_loop = asyncio.get_event_loop()
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81 self.bridge = bridge
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82 self.profile = profile
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83 self.pipeline = None
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84 self._audio_muted = False
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85 self._video_muted = False
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86 self.sources = sources
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87 self.sinks = sinks
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88 if sinks == SINKS_APP:
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89 self.appsink_data = appsink_data
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90 elif appsink_data is not None:
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91 raise exceptions.InternalError(
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92 "appsink_data can only be used for SINKS_APP sinks"
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93 )
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94 self.reset_cb = reset_cb
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95 self.reset_instance()
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96
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97 @property
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98 def audio_muted(self):
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99 return self._audio_muted
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100
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101 @audio_muted.setter
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102 def audio_muted(self, muted: bool) -> None:
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103 if muted != self._audio_muted:
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104 self._audio_muted = muted
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105 self.on_audio_mute(muted)
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106
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107 @property
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108 def video_muted(self):
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109 return self._video_muted
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110
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111 @video_muted.setter
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112 def video_muted(self, muted: bool) -> None:
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113 if muted != self._video_muted:
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114 self._video_muted = muted
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115 self.on_video_mute(muted)
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116
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117 @property
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118 def sdp_set(self):
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119 return self._sdp_set
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120
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121 @sdp_set.setter
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122 def sdp_set(self, is_set: bool):
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123 self._sdp_set = is_set
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124 if is_set:
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125 self.on_ice_candidates_new(self.remote_candidates_buffer)
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126 for data in self.remote_candidates_buffer.values():
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127 data["candidates"].clear()
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128
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129 @property
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130 def media_types(self):
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131 if self._media_types is None:
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132 raise Exception("self._media_types should not be None!")
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133 return self._media_types
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134
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135 @media_types.setter
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136 def media_types(self, new_media_types: dict) -> None:
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137 self._media_types = new_media_types
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138 self._media_types_inv = {v: k for k, v in new_media_types.items()}
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139
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140 @property
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141 def media_types_inv(self) -> dict:
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142 if self._media_types_inv is None:
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143 raise Exception("self._media_types_inv should not be None!")
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144 return self._media_types_inv
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145
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146 def generate_dot_file(
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147 self,
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148 filename: str = "pipeline",
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149 details: Gst.DebugGraphDetails = Gst.DebugGraphDetails.ALL,
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150 with_timestamp: bool = True,
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151 bin_: Gst.Bin|None = None,
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152 ) -> None:
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153 """Generate Dot File for debugging
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154
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155 ``GST_DEBUG_DUMP_DOT_DIR`` environment variable must be set to destination dir.
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156 ``dot -Tpng -o <filename>.png <filename>.dot`` can be use to convert to a PNG file.
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157 See
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158 https://gstreamer.freedesktop.org/documentation/gstreamer/debugutils.html?gi-language=python#GstDebugGraphDetails
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159 for details.
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160
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161 @param filename: name of the generated file
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162 @param details: which details to print
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163 @param with_timestamp: if True, add a timestamp to filename
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164 @param bin_: which bin to output. By default, the whole pipeline
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165 (``self.pipeline``) will be used.
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166 """
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167 if bin_ is None:
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168 bin_ = self.pipeline
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169 if with_timestamp:
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170 timestamp = datetime.now().isoformat(timespec='milliseconds')
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171 filename = f"{timestamp}_filename"
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172
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173 Gst.debug_bin_to_dot_file(bin_, details, filename)
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174
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175 def get_sdp_mline_index(self, media_type: str) -> int:
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176 """Gets the sdpMLineIndex for a given media type.
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177
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178 @param media_type: The type of the media.
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179 """
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180 for index, m_type in self.media_types.items():
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181 if m_type == media_type:
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182 return index
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183 raise ValueError(f"Media type '{media_type}' not found")
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184
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185 def _set_media_types(self, offer_sdp: str) -> None:
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186 """Sets media types from offer SDP
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187
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188 @param offer: RTC session description containing the offer
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189 """
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190 sdp_lines = offer_sdp.splitlines()
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191 media_types = {}
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192 mline_index = 0
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193
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194 for line in sdp_lines:
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195 if line.startswith("m="):
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196 media_types[mline_index] = line[2 : line.find(" ")]
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197 mline_index += 1
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198
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199 self.media_types = media_types
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200
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201 def _a_call(self, method, *args, **kwargs):
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202 """Call an async method in main thread"""
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203 aio.run_from_thread(method, *args, **kwargs, loop=self.main_loop)
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204
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205 def get_payload_types(
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206 self, sdpmsg, video_encoding: str, audio_encoding: str
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207 ) -> dict[str, int | None]:
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208 """Find the payload types for the specified video and audio encoding.
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209
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210 Very simplistically finds the first payload type matching the encoding
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211 name. More complex applications will want to match caps on
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212 profile-level-id, packetization-mode, etc.
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213 """
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214 # method coming from gstreamer example (Matthew Waters, Nirbheek Chauhan) at
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215 # subprojects/gst-examples/webrtc/sendrecv/gst/webrtc_sendrecv.py
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216 video_pt = None
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217 audio_pt = None
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218 for i in range(0, sdpmsg.medias_len()):
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219 media = sdpmsg.get_media(i)
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220 for j in range(0, media.formats_len()):
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221 fmt = media.get_format(j)
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222 if fmt == "webrtc-datachannel":
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223 continue
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224 pt = int(fmt)
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225 caps = media.get_caps_from_media(pt)
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226 s = caps.get_structure(0)
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227 encoding_name = s["encoding-name"]
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228 if video_pt is None and encoding_name == video_encoding:
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229 video_pt = pt
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230 elif audio_pt is None and encoding_name == audio_encoding:
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231 audio_pt = pt
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232 return {video_encoding: video_pt, audio_encoding: audio_pt}
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233
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234 def parse_ice_candidate(self, candidate_string):
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235 """Parses the ice candidate string.
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236
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237 @param candidate_string: The ice candidate string to be parsed.
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238 """
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239 pattern = re.compile(
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240 r"candidate:(?P<foundation>\S+) (?P<component_id>\d+) (?P<transport>\S+) "
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241 r"(?P<priority>\d+) (?P<address>\S+) (?P<port>\d+) typ "
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242 r"(?P<type>\S+)(?: raddr (?P<rel_addr>\S+) rport "
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243 r"(?P<rel_port>\d+))?(?: generation (?P<generation>\d+))?"
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244 )
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245 match = pattern.match(candidate_string)
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246 if match:
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247 candidate_dict = match.groupdict()
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248
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249 # Apply the correct types to the dictionary values
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250 candidate_dict["component_id"] = int(candidate_dict["component_id"])
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251 candidate_dict["priority"] = int(candidate_dict["priority"])
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252 candidate_dict["port"] = int(candidate_dict["port"])
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253
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254 if candidate_dict["rel_port"]:
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255 candidate_dict["rel_port"] = int(candidate_dict["rel_port"])
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256
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257 if candidate_dict["generation"]:
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258 candidate_dict["generation"] = candidate_dict["generation"]
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259
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260 # Remove None values
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261 return {k: v for k, v in candidate_dict.items() if v is not None}
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262 else:
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263 log.warning(f"can't parse candidate: {candidate_string!r}")
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264 return None
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265
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266 def build_ice_candidate(self, parsed_candidate):
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267 """Builds ICE candidate
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268
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269 @param parsed_candidate: Dictionary containing parsed ICE candidate
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270 """
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271 base_format = (
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272 "candidate:{foundation} {component_id} {transport} {priority} "
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273 "{address} {port} typ {type}"
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274 )
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275
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276 if parsed_candidate.get("rel_addr") and parsed_candidate.get("rel_port"):
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277 base_format += " raddr {rel_addr} rport {rel_port}"
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278
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279 if parsed_candidate.get("generation"):
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280 base_format += " generation {generation}"
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281
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282 return base_format.format(**parsed_candidate)
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283
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284 def extract_ufrag_pwd(self, sdp: str) -> tuple[str, str]:
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285 """Retrieves ICE password and user fragment for SDP offer.
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286
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287 @param sdp: The Session Description Protocol offer string.
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288 @return: ufrag and pwd
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289 @raise ValueError: Can't extract ufrag and password
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290 """
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291 ufrag_line = re.search(r"ice-ufrag:(\S+)", sdp)
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292 pwd_line = re.search(r"ice-pwd:(\S+)", sdp)
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293
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294 if ufrag_line and pwd_line:
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295 ufrag = self.ufrag = ufrag_line.group(1)
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296 pwd = self.pwd = pwd_line.group(1)
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297 return ufrag, pwd
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298 else:
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299 log.error(f"SDP with missing ice-ufrag or ice-pwd:\n{sdp}")
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300 raise ValueError("Can't extract ice-ufrag and ice-pwd from SDP")
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301
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302 def reset_instance(self):
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303 """Inits or resets the instance variables to their default state."""
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304 self.role: str | None = None
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305 if self.pipeline is not None:
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306 self.pipeline.set_state(Gst.State.NULL)
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307 self.pipeline = None
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308 self._remote_video_pad = None
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309 self.sid: str | None = None
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310 self.offer: str | None = None
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311 self.local_candidates_buffer = {}
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312 self.ufrag: str | None = None
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313 self.pwd: str | None = None
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314 self.callee: str | None = None
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315 self._media_types = None
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316 self._media_types_inv = None
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317 self._sdp_set: bool = False
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318 self.remote_candidates_buffer: dict[str, dict[str, list]] = {
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319 "audio": {"candidates": []},
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320 "video": {"candidates": []},
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321 }
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322 self._media_types = None
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323 self._media_types_inv = None
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324 self.audio_valve = None
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325 self.video_valve = None
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326 if self.reset_cb is not None:
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327 self.reset_cb()
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328
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329
6745c6bd4c7a frontends (tools): webrtc implementation:
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330 async def setup_call(
6745c6bd4c7a frontends (tools): webrtc implementation:
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331 self,
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332 role: str,
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333 audio_pt: int | None = 96,
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334 video_pt: int | None = 97,
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335 ) -> None:
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336 """Sets up the call.
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337
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338 This method establishes the Gstreamer pipeline for audio and video communication.
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339 The method also manages STUN and TURN server configurations, signal watchers, and
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340 various connection handlers for the webrtcbin.
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341
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342 @param role: The role for the call, either 'initiator' or 'responder'.
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343 @param audio_pt: The payload type for the audio stream.
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344 @param video_pt: The payload type for the video stream
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345
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346 @raises NotImplementedError: If audio_pt or video_pt is set to None.
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347 @raises AssertionError: If the role is not 'initiator' or 'responder'.
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348 """
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349 assert role in ("initiator", "responder")
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350 self.role = role
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351 if audio_pt is None or video_pt is None:
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352 raise NotImplementedError("None value is not handled yet")
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353
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354 if self.sources == SOURCES_AUTO:
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355 video_source_elt = "v4l2src"
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356 audio_source_elt = "pulsesrc"
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357 elif self.sources == SOURCES_TEST:
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358 video_source_elt = "videotestsrc is-live=true pattern=ball"
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359 audio_source_elt = "audiotestsrc"
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360 else:
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361 raise exceptions.InternalError(f'Unknown "sources" value: {self.sources!r}')
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362
6745c6bd4c7a frontends (tools): webrtc implementation:
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363 extra_elt = ""
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364
6745c6bd4c7a frontends (tools): webrtc implementation:
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365 if self.sinks == SINKS_APP:
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366 local_video_sink_elt = (
6745c6bd4c7a frontends (tools): webrtc implementation:
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367 "appsink name=local_video_sink emit-signals=true drop=true max-buffers=1 "
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368 "sync=True"
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369 )
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370 elif self.sinks == SINKS_AUTO:
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371 extra_elt = "compositor name=compositor ! autovideosink"
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372 local_video_sink_elt = """compositor.sink_1"""
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373 else:
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374 raise exceptions.InternalError(f"Unknown sinks value {self.sinks!r}")
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375
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376 self.gst_pipe_desc = f"""
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377 webrtcbin latency=100 name=sendrecv bundle-policy=max-bundle
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378
6745c6bd4c7a frontends (tools): webrtc implementation:
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379 input-selector name=video_selector
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380 ! videorate
6745c6bd4c7a frontends (tools): webrtc implementation:
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381 ! video/x-raw,framerate=30/1
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382 ! tee name=t
6745c6bd4c7a frontends (tools): webrtc implementation:
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383
6745c6bd4c7a frontends (tools): webrtc implementation:
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384 {extra_elt}
6745c6bd4c7a frontends (tools): webrtc implementation:
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385
6745c6bd4c7a frontends (tools): webrtc implementation:
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386 {video_source_elt} name=video_src ! queue leaky=downstream ! video_selector.
6745c6bd4c7a frontends (tools): webrtc implementation:
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diff changeset
387 videotestsrc is-live=true pattern=black ! queue leaky=downstream ! video_selector.
6745c6bd4c7a frontends (tools): webrtc implementation:
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388
6745c6bd4c7a frontends (tools): webrtc implementation:
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389 t.
6745c6bd4c7a frontends (tools): webrtc implementation:
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390 ! queue max-size-buffers=5 max-size-time=0 max-size-bytes=0 leaky=downstream
6745c6bd4c7a frontends (tools): webrtc implementation:
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391 ! videoconvert
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392 ! vp8enc deadline=1 keyframe-max-dist=60
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393 ! rtpvp8pay picture-id-mode=15-bit
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394 ! application/x-rtp,media=video,encoding-name=VP8,payload={video_pt}
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395 ! sendrecv.
6745c6bd4c7a frontends (tools): webrtc implementation:
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396
6745c6bd4c7a frontends (tools): webrtc implementation:
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397 t.
6745c6bd4c7a frontends (tools): webrtc implementation:
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398 ! queue max-size-buffers=5 max-size-time=0 max-size-bytes=0 leaky=downstream
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399 ! videoconvert
6745c6bd4c7a frontends (tools): webrtc implementation:
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400 ! {local_video_sink_elt}
6745c6bd4c7a frontends (tools): webrtc implementation:
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diff changeset
401
6745c6bd4c7a frontends (tools): webrtc implementation:
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diff changeset
402 {audio_source_elt} name=audio_src
6745c6bd4c7a frontends (tools): webrtc implementation:
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403 ! valve
6745c6bd4c7a frontends (tools): webrtc implementation:
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404 ! queue max-size-buffers=10 max-size-time=0 max-size-bytes=0 leaky=downstream
6745c6bd4c7a frontends (tools): webrtc implementation:
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405 ! audioconvert
6745c6bd4c7a frontends (tools): webrtc implementation:
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406 ! audioresample
6745c6bd4c7a frontends (tools): webrtc implementation:
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407 ! opusenc audio-type=voice
6745c6bd4c7a frontends (tools): webrtc implementation:
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408 ! rtpopuspay
6745c6bd4c7a frontends (tools): webrtc implementation:
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409 ! application/x-rtp,media=audio,encoding-name=OPUS,payload={audio_pt}
6745c6bd4c7a frontends (tools): webrtc implementation:
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410 ! sendrecv.
6745c6bd4c7a frontends (tools): webrtc implementation:
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411 """
6745c6bd4c7a frontends (tools): webrtc implementation:
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diff changeset
412
6745c6bd4c7a frontends (tools): webrtc implementation:
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413 log.debug(f"Gstreamer pipeline: {self.gst_pipe_desc}")
6745c6bd4c7a frontends (tools): webrtc implementation:
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diff changeset
414
6745c6bd4c7a frontends (tools): webrtc implementation:
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diff changeset
415 # Create the pipeline
6745c6bd4c7a frontends (tools): webrtc implementation:
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416 self.pipeline = Gst.parse_launch(self.gst_pipe_desc)
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417 if not self.pipeline:
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418 raise exceptions.InternalError("Failed to create Gstreamer pipeline.")
6745c6bd4c7a frontends (tools): webrtc implementation:
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diff changeset
419
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
420 self.webrtcbin = self.pipeline.get_by_name("sendrecv")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
421 self.video_src = self.pipeline.get_by_name("video_src")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
422 self.video_selector = self.pipeline.get_by_name("video_selector")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
423 self.audio_valve = self.pipeline.get_by_name("audio_valve")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
424
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
425 if self.video_muted:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
426 self.on_video_mute(True)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
427 if self.audio_muted:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
428 self.on_audio_mute(True)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
429
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
430 # set STUN and TURN servers
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
431 external_disco = data_format.deserialise(
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
432 await self.bridge.external_disco_get("", self.profile), type_check=list
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
433 )
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
434
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
435 for server in external_disco:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
436 if server["type"] == "stun":
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
437 if server["transport"] == "tcp":
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
438 log.info(
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
439 "ignoring TCP STUN server, GStreamer only support one STUN server"
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
440 )
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
441 url = f"stun://{server['host']}:{server['port']}"
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
442 log.debug(f"adding stun server: {url}")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
443 self.webrtcbin.set_property("stun-server", url)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
444 elif server["type"] == "turn":
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
445 url = "{scheme}://{username}:{password}@{host}:{port}".format(
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
446 scheme="turns" if server["transport"] == "tcp" else "turn",
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
447 username=quote_plus(server["username"]),
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
448 password=quote_plus(server["password"]),
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
449 host=server["host"],
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
450 port=server["port"],
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
451 )
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
452 log.debug(f"adding turn server: {url}")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
453
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
454 if not self.webrtcbin.emit("add-turn-server", url):
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
455 log.warning(f"Erreur while adding TURN server {url}")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
456
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
457 # local video feedback
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
458 if self.sinks == SINKS_APP:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
459 assert self.appsink_data is not None
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
460 local_video_sink = self.pipeline.get_by_name("local_video_sink")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
461 local_video_sink.set_property("emit-signals", True)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
462 local_video_sink.connect("new-sample", self.appsink_data.local_video_cb)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
463 local_video_sink_caps = Gst.Caps.from_string(f"video/x-raw,format=RGB")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
464 local_video_sink.set_property("caps", local_video_sink_caps)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
465
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
466 # Create bus and associate signal watchers
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
467 self.bus = self.pipeline.get_bus()
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
468 if not self.bus:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
469 log.error("Failed to get bus from pipeline.")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
470 return
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
471
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
472 self.bus.add_signal_watch()
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
473 self.webrtcbin.connect("pad-added", self.on_pad_added)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
474 self.bus.connect("message::error", self.on_bus_error)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
475 self.bus.connect("message::eos", self.on_bus_eos)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
476 self.webrtcbin.connect("on-negotiation-needed", self.on_negotiation_needed)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
477 self.webrtcbin.connect("on-ice-candidate", self.on_ice_candidate)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
478 self.webrtcbin.connect(
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
479 "notify::ice-gathering-state", self.on_ice_gathering_state_change
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
480 )
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
481 self.webrtcbin.connect(
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
482 "notify::ice-connection-state", self.on_ice_connection_state
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
483 )
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
484
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
485 def start_pipeline(self) -> None:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
486 """Starts the GStreamer pipeline."""
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
487 log.debug("starting the pipeline")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
488 self.pipeline.set_state(Gst.State.PLAYING)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
489
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
490 def on_negotiation_needed(self, webrtc):
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
491 """Initiate SDP offer when negotiation is needed."""
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
492 log.debug("Negotiation needed.")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
493 if self.role == "initiator":
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
494 log.debug("Creating offer…")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
495 promise = Gst.Promise.new_with_change_func(self.on_offer_created)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
496 self.webrtcbin.emit("create-offer", None, promise)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
497
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
498 def on_offer_created(self, promise):
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
499 """Callback for when SDP offer is created."""
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
500 log.info("on_offer_created called")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
501 assert promise.wait() == Gst.PromiseResult.REPLIED
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
502 reply = promise.get_reply()
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
503 if reply is None:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
504 log.error("Promise reply is None. Offer creation might have failed.")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
505 return
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
506 offer = reply["offer"]
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
507 self.offer = offer.sdp.as_text()
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
508 log.info(f"SDP offer created: \n{self.offer}")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
509 self._set_media_types(self.offer)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
510 promise = Gst.Promise.new()
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
511 self.webrtcbin.emit("set-local-description", offer, promise)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
512 promise.interrupt()
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
513 self._a_call(self._start_call)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
514
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
515 def on_answer_set(self, promise):
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
516 assert promise.wait() == Gst.PromiseResult.REPLIED
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
517
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
518 def on_answer_created(self, promise, _, __):
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
519 """Callback for when SDP answer is created."""
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
520 assert promise.wait() == Gst.PromiseResult.REPLIED
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
521 reply = promise.get_reply()
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
522 answer = reply["answer"]
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
523 promise = Gst.Promise.new()
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
524 self.webrtcbin.emit("set-local-description", answer, promise)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
525 promise.interrupt()
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
526 answer_sdp = answer.sdp.as_text()
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
527 log.info(f"SDP answer set: \n{answer_sdp}")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
528 self.sdp_set = True
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
529 self._a_call(self.bridge.call_answer_sdp, self.sid, answer_sdp, self.profile)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
530
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
531 def on_offer_set(self, promise):
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
532 assert promise.wait() == Gst.PromiseResult.REPLIED
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
533 promise = Gst.Promise.new_with_change_func(self.on_answer_created, None, None)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
534 self.webrtcbin.emit("create-answer", None, promise)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
535
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
536 def link_element_or_pad(
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
537 self, source: Gst.Element, dest: Gst.Element | Gst.Pad
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
538 ) -> bool:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
539 """Check if dest is a pad or an element, and link appropriately"""
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
540 src_pad = source.get_static_pad("src")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
541
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
542 if isinstance(dest, Gst.Pad):
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
543 # If the dest is a pad, link directly
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
544 if not src_pad.link(dest) == Gst.PadLinkReturn.OK:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
545 log.error(
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
546 "Failed to link 'conv' to the compositor's newly requested pad!"
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
547 )
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
548 return False
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
549 elif isinstance(dest, Gst.Element):
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
550 return source.link(dest)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
551 else:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
552 log.error(f"Unexpected type for dest: {type(sink)}")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
553 return False
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
554
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
555 return True
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
556
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
557 def scaled_dimensions(
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
558 self, original_width: int, original_height: int, max_width: int, max_height: int
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
559 ) -> tuple[int, int]:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
560 """Calculates the scaled dimensions preserving aspect ratio.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
561
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
562 @param original_width: Original width of the video stream.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
563 @param original_height: Original height of the video stream.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
564 @param max_width: Maximum desired width for the scaled video.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
565 @param max_height: Maximum desired height for the scaled video.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
566 @return: The width and height of the scaled video.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
567 """
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
568 aspect_ratio = original_width / original_height
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
569 new_width = int(max_height * aspect_ratio)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
570
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
571 if new_width <= max_width:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
572 return new_width, max_height
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
573
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
574 new_height = int(max_width / aspect_ratio)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
575 return max_width, new_height
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
576
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
577 def on_remote_decodebin_stream(self, _, pad: Gst.Pad) -> None:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
578 """Handle the stream from the remote decodebin.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
579
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
580 This method processes the incoming stream from the remote decodebin, determining
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
581 whether it's video or audio. It then sets up the appropriate GStreamer elements
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
582 for video/audio processing and adds them to the pipeline.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
583
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
584 @param pad: The Gst.Pad from the remote decodebin producing the stream.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
585 """
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
586 assert self.pipeline is not None
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
587 if not pad.has_current_caps():
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
588 log.error(f"{pad} has no caps, ignoring")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
589 return
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
590
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
591 caps = pad.get_current_caps()
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
592 assert len(caps)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
593 s = caps[0]
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
594 name = s.get_name()
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
595 log.debug(f"====> NAME START: {name}")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
596
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
597 q = Gst.ElementFactory.make("queue")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
598
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
599 if name.startswith("video"):
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
600 log.debug("===> VIDEO OK")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
601
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
602 self._remote_video_pad = pad
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
603
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
604 # Check and log the original size of the video
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
605 width = s.get_int("width").value
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
606 height = s.get_int("height").value
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
607 log.info(f"Original video size: {width}x{height}")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
608
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
609 # This is a fix for an issue found with Movim on desktop: a non standard
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
610 # resolution is used (990x557) resulting in bad alignement and no color in
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
611 # rendered image
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
612 adjust_resolution = width % 4 != 0 or height % 4 != 0
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
613 if adjust_resolution:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
614 log.info("non standard resolution, we need to adjust size")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
615 width = (width + 3) // 4 * 4
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
616 height = (height + 3) // 4 * 4
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
617 log.info(f"Adjusted video size: {width}x{height}")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
618
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
619 conv = Gst.ElementFactory.make("videoconvert")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
620 if self.sinks == SINKS_APP:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
621 assert self.appsink_data is not None
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
622 remote_video_sink = Gst.ElementFactory.make("appsink")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
623
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
624 appsink_caps = Gst.Caps.from_string("video/x-raw,format=RGB")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
625 remote_video_sink.set_property("caps", appsink_caps)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
626
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
627 remote_video_sink.set_property("emit-signals", True)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
628 remote_video_sink.set_property("drop", True)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
629 remote_video_sink.set_property("max-buffers", 1)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
630 remote_video_sink.set_property("sync", True)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
631 remote_video_sink.connect("new-sample", self.appsink_data.remote_video_cb)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
632 self.pipeline.add(remote_video_sink)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
633 if self.sinks == SINKS_AUTO:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
634 compositor = self.pipeline.get_by_name("compositor")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
635
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
636 sink1_pad = compositor.get_static_pad("sink_1")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
637
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
638 local_width, local_height = self.scaled_dimensions(
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
639 sink1_pad.get_property("width"),
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
640 sink1_pad.get_property("height"),
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
641 width // 3,
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
642 height // 3,
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
643 )
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
644
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
645 sink1_pad.set_property("xpos", width - local_width)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
646 sink1_pad.set_property("ypos", height - local_height)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
647 sink1_pad.set_property("width", local_width)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
648 sink1_pad.set_property("height", local_height)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
649 sink1_pad.set_property("zorder", 1)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
650
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
651 # Request a new pad for the remote stream
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
652 sink_pad_template = compositor.get_pad_template("sink_%u")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
653 remote_video_sink = compositor.request_pad(sink_pad_template, None, None)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
654 remote_video_sink.set_property("zorder", 0)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
655
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
656 else:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
657 raise exceptions.InternalError(f'Unhandled "sinks" value: {self.sinks!r}')
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
658
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
659 if adjust_resolution:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
660 videoscale = Gst.ElementFactory.make("videoscale")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
661 adjusted_caps = Gst.Caps.from_string(
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
662 f"video/x-raw,width={width},height={height}"
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
663 )
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
664 capsfilter = Gst.ElementFactory.make("capsfilter")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
665 capsfilter.set_property("caps", adjusted_caps)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
666
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
667 self.pipeline.add(q, conv, videoscale, capsfilter)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
668
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
669
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
670 self.pipeline.sync_children_states()
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
671 ret = pad.link(q.get_static_pad("sink"))
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
672 if ret != Gst.PadLinkReturn.OK:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
673 log.error(f"Error linking pad: {ret}")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
674 q.link(conv)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
675 conv.link(videoscale)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
676 videoscale.link(capsfilter)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
677 self.link_element_or_pad(capsfilter.link, remote_video_sink)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
678
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
679 else:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
680 self.pipeline.add(q, conv)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
681
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
682 self.pipeline.sync_children_states()
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
683 ret = pad.link(q.get_static_pad("sink"))
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
684 if ret != Gst.PadLinkReturn.OK:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
685 log.error(f"Error linking pad: {ret}")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
686 q.link(conv)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
687 self.link_element_or_pad(conv, remote_video_sink)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
688
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
689 elif name.startswith("audio"):
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
690 log.debug("===> Audio OK")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
691 conv = Gst.ElementFactory.make("audioconvert")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
692 resample = Gst.ElementFactory.make("audioresample")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
693 remote_audio_sink = Gst.ElementFactory.make("autoaudiosink")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
694 self.pipeline.add(q, conv, resample, remote_audio_sink)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
695 self.pipeline.sync_children_states()
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
696 ret = pad.link(q.get_static_pad("sink"))
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
697 if ret != Gst.PadLinkReturn.OK:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
698 log.error(f"Error linking pad: {ret}")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
699 q.link(conv)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
700 conv.link(resample)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
701 resample.link(remote_audio_sink)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
702
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
703 else:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
704 log.warning(f"unmanaged name: {name!r}")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
705
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
706 def on_pad_added(self, __, pad: Gst.Pad) -> None:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
707 """Handle the addition of a new pad to the element.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
708
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
709 When a new source pad is added to the element, this method creates a decodebin,
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
710 connects it to handle the stream, and links the pad to the decodebin.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
711
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
712 @param __: Placeholder for the signal source. Not used in this method.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
713 @param pad: The newly added pad.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
714 """
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
715 log.debug("on_pad_added")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
716 if pad.direction != Gst.PadDirection.SRC:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
717 return
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
718
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
719 decodebin = Gst.ElementFactory.make("decodebin")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
720 decodebin.connect("pad-added", self.on_remote_decodebin_stream)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
721 self.pipeline.add(decodebin)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
722 decodebin.sync_state_with_parent()
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
723 pad.link(decodebin.get_static_pad("sink"))
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
724
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
725 async def _start_call(self) -> None:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
726 """Initiate the call.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
727
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
728 Initiates a call with the callee using the stored offer. If there are any buffered
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
729 local ICE candidates, they are sent as part of the initiation.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
730 """
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
731 assert self.callee
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
732 self.sid = await self.bridge.call_start(
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
733 str(self.callee), data_format.serialise({"sdp": self.offer}), self.profile
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
734 )
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
735 if self.local_candidates_buffer:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
736 log.debug(
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
737 f"sending buffered local ICE candidates: {self.local_candidates_buffer}"
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
738 )
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
739 if self.pwd is None:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
740 sdp = self.webrtcbin.props.local_description.sdp.as_text()
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
741 self.extract_ufrag_pwd(sdp)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
742 ice_data = {}
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
743 for media_type, candidates in self.local_candidates_buffer.items():
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
744 ice_data[media_type] = {
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
745 "ufrag": self.ufrag,
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
746 "pwd": self.pwd,
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
747 "candidates": candidates,
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
748 }
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
749 await self.bridge.ice_candidates_add(
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
750 self.sid, data_format.serialise(ice_data), self.profile
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
751 )
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
752 self.local_candidates_buffer.clear()
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
753
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
754 def _remote_sdp_set(self, promise) -> None:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
755 assert promise.wait() == Gst.PromiseResult.REPLIED
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
756 self.sdp_set = True
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
757
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
758 def on_accepted_call(self, sdp: str, profile: str) -> None:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
759 """Outgoing call has been accepted.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
760
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
761 @param sdp: The SDP answer string received from the other party.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
762 @param profile: Profile used for the call.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
763 """
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
764 log.debug(f"SDP answer received: \n{sdp}")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
765
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
766 __, sdpmsg = GstSdp.SDPMessage.new_from_text(sdp)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
767 answer = GstWebRTC.WebRTCSessionDescription.new(
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
768 GstWebRTC.WebRTCSDPType.ANSWER, sdpmsg
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
769 )
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
770 promise = Gst.Promise.new_with_change_func(self._remote_sdp_set)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
771 self.webrtcbin.emit("set-remote-description", answer, promise)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
772
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
773 async def answer_call(self, sdp: str, profile: str) -> None:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
774 """Answer an incoming call
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
775
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
776 @param sdp: The SDP offer string received from the initiator.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
777 @param profile: Profile used for the call.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
778
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
779 @raise AssertionError: Raised when either "VP8" or "OPUS" is not present in
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
780 payload types.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
781 """
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
782 log.debug(f"SDP offer received: \n{sdp}")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
783 self._set_media_types(sdp)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
784 __, offer_sdp_msg = GstSdp.SDPMessage.new_from_text(sdp)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
785 payload_types = self.get_payload_types(
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
786 offer_sdp_msg, video_encoding="VP8", audio_encoding="OPUS"
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
787 )
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
788 assert "VP8" in payload_types
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
789 assert "OPUS" in payload_types
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
790 await self.setup_call(
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
791 "responder", audio_pt=payload_types["OPUS"], video_pt=payload_types["VP8"]
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
792 )
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
793 self.start_pipeline()
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
794 offer = GstWebRTC.WebRTCSessionDescription.new(
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
795 GstWebRTC.WebRTCSDPType.OFFER, offer_sdp_msg
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
796 )
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
797 promise = Gst.Promise.new_with_change_func(self.on_offer_set)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
798 self.webrtcbin.emit("set-remote-description", offer, promise)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
799
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
800 def on_ice_candidate(self, webrtc, mline_index, candidate_sdp):
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
801 """Handles the on-ice-candidate signal of webrtcbin.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
802
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
803 @param webrtc: The webrtcbin element.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
804 @param mlineindex: The mline index.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
805 @param candidate: The ICE candidate.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
806 """
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
807 log.debug(
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
808 f"Local ICE candidate. MLine Index: {mline_index}, Candidate: {candidate_sdp}"
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
809 )
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
810 parsed_candidate = self.parse_ice_candidate(candidate_sdp)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
811 try:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
812 media_type = self.media_types[mline_index]
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
813 except KeyError:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
814 raise exceptions.InternalError("can't find media type")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
815
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
816 if self.sid is None:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
817 log.debug("buffering local ICE candidate")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
818 self.local_candidates_buffer.setdefault(media_type, []).append(
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
819 parsed_candidate
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
820 )
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
821 else:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
822 sdp = self.webrtcbin.props.local_description.sdp.as_text()
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
823 assert sdp is not None
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
824 ufrag, pwd = self.extract_ufrag_pwd(sdp)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
825 ice_data = {"ufrag": ufrag, "pwd": pwd, "candidates": [parsed_candidate]}
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
826 self._a_call(
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
827 self.bridge.ice_candidates_add,
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
828 self.sid,
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
829 data_format.serialise({media_type: ice_data}),
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
830 self.profile,
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
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diff changeset
831 )
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
832
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
833 def on_ice_candidates_new(self, candidates: dict) -> None:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
834 """Handle new ICE candidates.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
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835
6745c6bd4c7a frontends (tools): webrtc implementation:
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parents:
diff changeset
836 @param candidates: A dictionary containing media types ("audio" or "video") as
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
837 keys and corresponding ICE data as values.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
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838
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
839 @raise exceptions.InternalError: Raised when sdp mline index is not found.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
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840 """
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
841 if not self.sdp_set:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
842 log.debug("buffering remote ICE candidate")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
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843 for media_type in ("audio", "video"):
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
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diff changeset
844 media_candidates = candidates.get(media_type)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
845 if media_candidates:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
846 buffer = self.remote_candidates_buffer[media_type]
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
847 buffer["candidates"].extend(media_candidates["candidates"])
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
848 return
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
849 for media_type, ice_data in candidates.items():
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
850 for candidate in ice_data["candidates"]:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
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diff changeset
851 candidate_sdp = self.build_ice_candidate(candidate)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
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852 try:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
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diff changeset
853 mline_index = self.get_sdp_mline_index(media_type)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
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854 except Exception as e:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
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855 raise exceptions.InternalError(f"Can't find sdp mline index: {e}")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
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diff changeset
856 self.webrtcbin.emit("add-ice-candidate", mline_index, candidate_sdp)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
857 log.debug(
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
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858 f"Remote ICE candidate added. MLine Index: {mline_index}, "
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
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859 f"{candidate_sdp}"
6745c6bd4c7a frontends (tools): webrtc implementation:
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parents:
diff changeset
860 )
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
861
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
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862 def on_ice_gathering_state_change(self, pspec, __):
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
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863 state = self.webrtcbin.get_property("ice-gathering-state")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
864 log.debug(f"ICE gathering state changed to {state}")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
865
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
866 def on_ice_connection_state(self, pspec, __):
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
867 state = self.webrtcbin.props.ice_connection_state
6745c6bd4c7a frontends (tools): webrtc implementation:
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parents:
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868 if state == GstWebRTC.WebRTCICEConnectionState.FAILED:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
869 log.error("ICE connection failed")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
870 log.info(f"ICE connection state changed to {state}")
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Goffi <goffi@goffi.org>
parents:
diff changeset
871
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
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diff changeset
872 def on_bus_error(self, bus: Gst.Bus, message: Gst.Message) -> None:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
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diff changeset
873 """Handles the GStreamer bus error messages.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
874
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
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875 @param bus: The GStreamer bus.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
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876 @param message: The error message.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
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877 """
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
878 err, debug = message.parse_error()
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
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diff changeset
879 log.error(f"Error from {message.src.get_name()}: {err.message}")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
880 log.error(f"Debugging info: {debug}")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
881
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
882 def on_bus_eos(self, bus: Gst.Bus, message: Gst.Message) -> None:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
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883 """Handles the GStreamer bus eos messages.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
884
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
885 @param bus: The GStreamer bus.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
886 @param message: The eos message.
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
887 """
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
888 log.info("End of stream")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
889
6745c6bd4c7a frontends (tools): webrtc implementation:
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diff changeset
890 def on_audio_mute(self, muted: bool) -> None:
6745c6bd4c7a frontends (tools): webrtc implementation:
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parents:
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891 if self.audio_valve is not None:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
892 self.audio_valve.set_property("drop", muted)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
893 state = "muted" if muted else "unmuted"
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
894 log.info(f"audio is now {state}")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
895
6745c6bd4c7a frontends (tools): webrtc implementation:
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diff changeset
896 def on_video_mute(self, muted: bool) -> None:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
897 if self.video_selector is not None:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
898 # when muted, we switch to a black image and deactivate the camera
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
899 if not muted:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
900 self.video_src.set_state(Gst.State.PLAYING)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
901 pad = self.video_selector.get_static_pad("sink_1" if muted else "sink_0")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
902 self.video_selector.props.active_pad = pad
6745c6bd4c7a frontends (tools): webrtc implementation:
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parents:
diff changeset
903 if muted:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
904 self.video_src.set_state(Gst.State.NULL)
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
905 state = "muted" if muted else "unmuted"
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
906 log.info(f"video is now {state}")
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
907
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
908 async def end_call(self) -> None:
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
909 """Stop streaming and clean instance"""
6745c6bd4c7a frontends (tools): webrtc implementation:
Goffi <goffi@goffi.org>
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diff changeset
910 self.reset_instance()