/usr/share/doc/python-telepathy/examples/call.py is in python-telepathy 0.15.19-2.1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 | import dbus
import dbus.glib
import gobject
import sys
import gst
import tpfarsight
import farsight
from account import connection_from_file
from telepathy.client.channel import Channel
from telepathy.constants import (
CONNECTION_HANDLE_TYPE_NONE, CONNECTION_HANDLE_TYPE_CONTACT,
CONNECTION_STATUS_CONNECTED, CONNECTION_STATUS_DISCONNECTED,
MEDIA_STREAM_TYPE_AUDIO, MEDIA_STREAM_TYPE_VIDEO)
from telepathy.interfaces import (
CHANNEL_INTERFACE, CHANNEL_INTERFACE_GROUP, CHANNEL_TYPE_STREAMED_MEDIA,
CONN_INTERFACE, CONN_INTERFACE_CAPABILITIES)
import logging
logging.basicConfig()
class Call:
def __init__(self, account_file):
self.conn = connection_from_file(account_file,
ready_handler=self.ready_cb)
self.channel = None
self.fschannel = None
self.pipeline = gst.Pipeline()
self.pipeline.get_bus().add_watch(self.async_handler)
self.conn[CONN_INTERFACE].connect_to_signal('StatusChanged',
self.status_changed_cb)
self.conn[CONN_INTERFACE].connect_to_signal('NewChannel',
self.new_channel_cb)
def async_handler (self, bus, message):
if self.tfchannel != None:
self.tfchannel.bus_message(message)
return True
def run_main_loop(self):
self.loop = gobject.MainLoop()
self.loop.run()
def run(self):
print "connecting"
self.conn[CONN_INTERFACE].Connect()
try:
self.run_main_loop()
except KeyboardInterrupt:
print "killed"
if self.channel:
print "closing channel"
self.channel[CHANNEL_INTERFACE].Close()
try:
print "disconnecting"
self.conn[CONN_INTERFACE].Disconnect()
except dbus.DBusException:
pass
def quit(self):
if self.loop:
self.loop.quit()
self.loop = None
def status_changed_cb(self, state, reason):
if state == CONNECTION_STATUS_DISCONNECTED:
print 'connection closed'
self.quit()
def ready_cb(self, conn):
pass
def request_channel_error_cb(self, exception):
print 'error:', exception
self.quit()
def new_channel_cb(self, object_path, channel_type, handle_type, handle,
suppress_handler):
if channel_type != CHANNEL_TYPE_STREAMED_MEDIA:
return
self.chan_handle_type = handle_type
self.chan_handle = handle
print "new streamed media channel"
Channel(self.conn.service_name, object_path,
ready_handler=self.channel_ready_cb)
def src_pad_added (self, stream, pad, codec):
type = stream.get_property ("media-type")
if type == farsight.MEDIA_TYPE_AUDIO:
sink = gst.parse_bin_from_description("audioconvert ! audioresample ! audioconvert ! autoaudiosink", True)
elif type == farsight.MEDIA_TYPE_VIDEO:
sink = gst.parse_bin_from_description("ffmpegcolorspace ! videoscale ! autovideosink", True)
self.pipeline.add(sink)
pad.link(sink.get_pad("sink"))
sink.set_state(gst.STATE_PLAYING)
def stream_created(self, channel, stream):
stream.connect ("src-pad-added", self.src_pad_added)
srcpad = stream.get_property ("sink-pad")
type = stream.get_property ("media-type")
if type == farsight.MEDIA_TYPE_AUDIO:
src = gst.element_factory_make ("audiotestsrc")
src.set_property("is-live", True)
elif type == farsight.MEDIA_TYPE_VIDEO:
src = gst.element_factory_make ("videotestsrc")
src.set_property("is-live", True)
self.pipeline.add(src)
src.get_pad("src").link(srcpad)
src.set_state(gst.STATE_PLAYING)
def session_created (self, channel, conference, participant):
self.pipeline.add(conference)
self.pipeline.set_state(gst.STATE_PLAYING)
def get_codec_config (self, channel, stream_id, media_type, direction):
print "got codec config"
if media_type == farsight.MEDIA_TYPE_VIDEO:
codecs = [ farsight.Codec(farsight.CODEC_ID_ANY, "H264",
farsight.MEDIA_TYPE_VIDEO, 0) ]
if self.conn.GetProtocol() == "sip" :
codecs += [ farsight.Codec(farsight.CODEC_ID_DISABLE, "THEORA",
farsight.MEDIA_TYPE_VIDEO, 0) ]
else:
codecs += [ farsight.Codec(farsight.CODEC_ID_ANY, "THEORA",
farsight.MEDIA_TYPE_VIDEO, 0) ]
codecs += [
farsight.Codec(farsight.CODEC_ID_ANY, "H263",
farsight.MEDIA_TYPE_VIDEO, 0),
farsight.Codec(farsight.CODEC_ID_DISABLE, "DV",
farsight.MEDIA_TYPE_VIDEO, 0),
farsight.Codec(farsight.CODEC_ID_ANY, "JPEG",
farsight.MEDIA_TYPE_VIDEO, 0),
farsight.Codec(farsight.CODEC_ID_ANY, "MPV",
farsight.MEDIA_TYPE_VIDEO, 0),
]
return codecs
else:
return None
def channel_ready_cb(self, channel):
print "channel ready"
channel[CHANNEL_INTERFACE].connect_to_signal('Closed', self.closed_cb)
channel[CHANNEL_INTERFACE_GROUP].connect_to_signal('MembersChanged',
self.members_changed_cb)
channel[CHANNEL_TYPE_STREAMED_MEDIA].connect_to_signal(
'StreamError', self.stream_error_cb)
self.channel = channel
tfchannel = tpfarsight.Channel(self.conn.service_name,
self.conn.object_path, channel.object_path)
self.tfchannel = tfchannel
tfchannel.connect ("session-created", self.session_created)
tfchannel.connect ("stream-created", self.stream_created)
tfchannel.connect ("stream-get-codec-config", self.get_codec_config)
print "Channel ready"
def stream_error_cb(self, *foo):
print 'error: %r' % (foo,)
self.channel.close()
def closed_cb(self):
print "channel closed"
self.quit()
def members_changed_cb(self, message, added, removed, local_pending,
remote_pending, actor, reason):
print 'MembersChanged', (
added, removed, local_pending, remote_pending, actor, reason)
class OutgoingCall(Call):
def __init__(self, account_file, contact):
Call.__init__(self, account_file)
self.contact = contact
self.calling = False
def start_call(self):
self.calling = True
self.conn[CONN_INTERFACE].RequestChannel(
CHANNEL_TYPE_STREAMED_MEDIA, CONNECTION_HANDLE_TYPE_NONE,
0, True, reply_handler=lambda *stuff: None,
error_handler=self.request_channel_error_cb)
def got_handle_capabilities(self, caps):
if self.calling:
return
for c in caps:
if c[1] == CHANNEL_TYPE_STREAMED_MEDIA:
self.start_call()
return
print "No media capabilities found, waiting...."
def capabilities_changed_cb(self, caps):
for x in caps:
if x[0] == self.handle:
self.got_handle_capabilities([[x[0],x[1],x[3],x[5]]])
def ready_cb(self, conn):
handle = self.conn[CONN_INTERFACE].RequestHandles(
CONNECTION_HANDLE_TYPE_CONTACT, [self.contact])[0]
self.handle = handle
if CONN_INTERFACE_CAPABILITIES in self.conn.get_valid_interfaces():
self.conn[CONN_INTERFACE_CAPABILITIES].connect_to_signal(
'CapabilitiesChanged', self.capabilities_changed_cb)
self.got_handle_capabilities(
self.conn[CONN_INTERFACE_CAPABILITIES].GetCapabilities(
[handle]))
else:
# CM doesn't have capabilities support, assume they can do audio
# and video
self.start_call()
def channel_ready_cb(self, channel):
Call.channel_ready_cb(self, channel)
channel[CHANNEL_INTERFACE_GROUP].AddMembers([self.handle], "")
print "requesting audio/video streams"
try:
channel[CHANNEL_TYPE_STREAMED_MEDIA].RequestStreams(
self.handle,
[MEDIA_STREAM_TYPE_AUDIO, MEDIA_STREAM_TYPE_VIDEO]);
except dbus.DBusException, e:
print "failed:", e
print "requesting audio stream"
try:
channel[CHANNEL_TYPE_STREAMED_MEDIA].RequestStreams(
self.handle, [MEDIA_STREAM_TYPE_AUDIO]);
except dbus.DBusException, e:
print "failed:", e
print "giving up"
self.quit()
class IncomingCall(Call):
def ready_cb(self, conn):
if CONN_INTERFACE_CAPABILITIES in self.conn.get_valid_interfaces():
self.conn[CONN_INTERFACE_CAPABILITIES].AdvertiseCapabilities(
[(CHANNEL_TYPE_STREAMED_MEDIA, 3)], [])
def channel_ready_cb(self, channel):
Call.channel_ready_cb(self, channel)
print "accepting incoming call"
pending = channel[CHANNEL_INTERFACE_GROUP].GetLocalPendingMembers()
channel[CHANNEL_INTERFACE_GROUP].AddMembers(pending, "")
def closed_cb(self):
print "channel closed"
self.channel = None
print "waiting for incoming call"
if __name__ == '__main__':
gobject.threads_init()
args = sys.argv[1:]
assert len(args) in (1, 2)
if len(args) > 1:
call = OutgoingCall(args[0], args[1])
else:
call = IncomingCall(args[0])
call.run()
|