Pogoplug audio baby monitor

[moonman]

Most routers filter udp broadcast packets for the wireless interface so it doesn't get flooded with useless udp. The reason behind this is that broadcast gets sent to EVERY wireless device which means the device will have to wake up even though the packaet may not be for that device. More power consumption. Then wireless has limited throughput and there's only one radio on the router shared between multiple devices. Some routers have an option to enable it (running dd-wrt or tomato on yours?). Why not stream TCP or UDP unicast?

[permitivity]

Oh, didn't know that about routers filtering UDP.

Yes, I'm running Tomato. I would prefer to stream via TCP, especially if it means less wasted network traffic, but I thought the command for ffmpeg on the baby unit could only do rtp, and rtp is multicast? I could be totally off here. Might have to do some reading to understand your last reply. I'm not sure how to make this work using TCP. Would it be a router setting or a change in the ffmpeg command on the baby unit pogoplug?

[moonman]

To enable multicast in Tomato go to Advanced --> Firewall and enable IGMPproxy for LAN (two checkboxes, one for IGMPporxy, the other for LAN). Not a very good solution.

You can still use UDP unicast. In your server specify the IP of the client you are streaming to after rtp://

Source: http://trac.ffmpeg.org/wiki/StreamingGu ... tstreaming

[permitivity]

Thanks Moonman, the direct point to point rtp works well. It works when both parent and baby units on wireless USB adapters.

For those who might be interested, here what I did:
$this->bbcode_second_pass_quote('', '
')Baby unit Pogoplug IP (audio source): 192.168.1.42
Parent unit (plays audio): 192.168.1.41

Parent unit, used to play audio, points to audio source:
ffmpeg -i rtp://192.168.1.42:1234 -f alsa default

Baby unit command, audio source, send audio to parent unit's IP:
ffmpeg -re -f alsa -i plughw:0 -acodec mp2 -ab 192000 -ar 48000 -ac 1 -filter 'bandpass=f=1000:csg=0:width_type=q:w=.806' -f rtp rtp://192.168.1.41:1234