For usage related information, see webcam feature.
Component | Link |
---|---|
client | xpra.client.mixins.webcam |
client connection | xpra.server.source.webcam |
server | xpra.server.mixins.webcam |
The client exposes a single webcam
boolean capability.
The server exposes the following attributes using the webcam
capability prefix:
enabled
booleanencodings
list of strings - encodings supported: onlypng
orjpeg
are guaranteed to be supporteddevices
integer - the number of virtual video devices available
Packet Type | Arguments | Direction |
---|---|---|
webcam-start |
device_id , width , height |
client to server |
webcam-ack |
unused , frame_no , width , height |
server to client |
webcam-frame |
device_id , frame_no , encoding , width , height , data |
client to server |
webcam-stop |
device_no |
device_id
, frame_no
, width
and height
are always integers, encoding
is a string.
The device_id
must be smaller than the number of virtual video devices
.
- client requests
webcam-start
- the server responds with a
webcam-ack
forframe_no
0, thewidth
andheight
may be different from the one requested - the client can then send a
webcam-frame
forframe_no
1 - the server responds with a
webcam-ack
for each frame it receives - the client must wait for the
webcam-ack
before sending the next frame - whenever the client decides to stop forwarding the webcam, it must send a
webcam-stop
packet
If any of these steps fail, a webcam-stop
packet must be sent to the peer.