https://bugs.freedesktop.org/show_bug.cgi?id=105231
Bug ID: 105231
Summary: module-rtp-recv's unicast does not parse
Product: PulseAudio
Version: unspecified
Hardware: Other
OS: All
Status: NEW
Severity: normal
Priority: medium
Component: modules
Assignee: pulseaudio-bugs@lists.freedesktop.org
Reporter: westlake2...@videotron.ca
QA Contact: pulseaudio-bugs@lists.freedesktop.org
CC: lenn...@poettering.net
according to documentation (bug occurs with pa10 and pa11)
https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Modules/#index39h3
"sap_address
The address used to listen for SAP announcements, defaults to 224.0.0.56. It
can be either a multicast group or a unicast address."
when sap_address=<unicast> is specified such as 192.168.2.101, pulseaudio fails
with a message that this address is not acceptable.
The sender can still be set to a unicast address
(load-module module-rtp-send source=<source> source_ip=192.168.2.101
destination_ip=192.168.2.105)
load-module module-rtp-recv sink=<sink> sap_address=192.168.2.101
latency_msec=50
is not acceptable,
however "load-module module-rtp-recv
sink=alsa_output.pci-0000_00_1b.0.analog-stereo sap_address=0.0.0.0
latency_msec=50" works.
if sap_adresss is not set to 0.0.0.0 then the only way for it to work would be
to allow the default to be the destination(the multicast address).
If the multicast address is specified on the receiver side with sap_address, it
works. The multicast address of course also works when not specified.
just to make clear,
tcpdump demonstrates the unicast address 192.168.2.101 is being sent to but is
only playable on the receiver side if sap_address is set to 0.0.0.0
The documentation can also be slightly improved to mention that the rtp sender
be set to an rtp sink.monitor.
"It reads audio data from an existing source and forwards it to the network
encapsulated in RTP. " should mention that the "source" not be a final sink
device otherwise it wouldn't work.
thanks
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