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wb2osz / direwolf

Dire Wolf is a software "soundcard" AX.25 packet modem/TNC and APRS encoder/decoder. It can be used stand-alone to observe APRS traffic, as a tracker, digipeater, APRStt gateway, or Internet Gateway (IGate). For more information, look at the bottom 1/4 of this page and in https://github.com/wb2osz/direwolf/blob/dev/doc/README.md
GNU General Public License v2.0
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UDP Stream issue #538

Closed iz4tow closed 5 days ago

iz4tow commented 6 days ago

Good afternoon, I encountered an issue using UDP device on direwolf

Scenario

Audio sender: Windows 10 host with ffmpeg

Receiver: Ubuntu Desktop 22.04 with direwolf last release build from github today

On Windows host (audio sender)

ffmpeg -f dshow -i audio="Line 1 (Virtual Audio Cable)" -c 1 -acodec pcm_s16le -b:a 44100 -f mpegts udp://192.168.56.1:12000

I tried playing a test.wav generated with gen_packet and tested with atest.

On Ubuntu

If I try to listen the stream with VLC I can hear it loud and clear, but with direwolf with this command

direwolf -n 1 -a 10 -r 44100  udp:12000

Output:

Dire Wolf version 1.7
Includes optional support for:  hamlib cm108-ptt

Reading config file direwolf.conf
Audio input device for receive: udp:12000  (channel 0)
Audio out device for transmit: null  (channel 0)
Channel 0: Demodulator + option can't be combined with multiple frequencies.
Channel 0: 300 baud, AFSK 1600 & 1800 Hz, A+, 44100 sample rate / 4.
Note: PTT not configured for channel 0. (Ignore this if using VOX.)
Ready to accept AGW client application 0 on port 8000 ...
Ready to accept KISS TCP client application 0 on port 8001 ...

ADEVICE0: Sample rate approx. 10.0 k, 0 errors, receive audio level CH0 195

ADEVICE0: Sample rate approx. 9.8 k, 0 errors, receive audio level CH0 194

ADEVICE0: Sample rate approx. 10.0 k, 0 errors, receive audio level CH0 195

ADEVICE0: Sample rate approx. 10.0 k, 0 errors, receive audio level CH0 194

ADEVICE0: Sample rate approx. 10.0 k, 0 errors, receive audio level CH0 194

But...no decoding!

dranch commented 6 days ago

A github issue is intended for reporting a bug or requesting a feature, not asking for support. Instead, please join https://groups.io/g/direwolf and first search the archives for say "udp" and you will find a lot of examples such as https://groups.io/g/direwolf/topic/105984656#msg9570 . If you still need help, please post your message there and include the relevant part of of your direwolf.conf file, etc. Please close this issue unless you strongly believe you have found a bug.