dsd VS sdrtrunk

https://github.com/szechyjs/dsd this will decode Dstar, I haven't used it for many years but it did work on my computer.

DSD: https://github.com/szechyjs/dsd

I have searched DSD only, but it can't stream audio to Icecast server.

I use DSD.

https://github.com/szechyjs/dsd/wiki/Installation Just install it from the repository. sudo apt-get install dsd

there is native DSD implementation https://github.com/szechyjs/dsd

For DSD, this one is the most likely project I found. I don't have time to track down the prereqs right now, but if that's the project you're looking at, the Makefile would be generated by CMake, and I'd hope that an up-to-date version of CMake would output a Makefile with appropriate CFLAGS for the version of compiler.

One of the earliest tools was Digital Speech Decoder, however it might be a bit CPU-intensive for raspberry pi.

This might be a big ask but I would love some better software for streaming trunked radio systems, I'm using sdrtrunk to stream to broadcastify, but it requires running a whole desktop environment and I feel like it's a ton of overhead for nothing

A second vote for SDRTrunk. I typically don't use a Windows computer, but fired one up to try DSD+, and man, that seemed like a lot of work to get something working that didn't decode traffic all that reliably.

SDR Trunk. It's java so it should work with any OS that supports JVM

Might wanna give SDRTrunk a whirl, I found it infinitely easier to set up than Unitrunker.

SDRtrunk, comes with builtin DMR and other protocol support

It's worth mentioning that for trunked P25 systems, the voice channels are often spread out so they span more spectrum than the ~2.4 MHz bandwidth of an RTL-SDR, so you won't be able to monitor both the control channel and any voice channels that are too far away from it. I have had reasonable success decoding my county's trunked P25 public safety system with sdrtrunk and two RTL-SDRs, but that still only covers about 4.8 MHz of spectrum, so there are still channels that can't be received. I am considering upgrading to an SDR dongle with wider receive bandwidth (some will do 6 or 10 MHz, IIRC) so that sdrtrunk will be able to receive the control channel and any voice channels, and stop telling me it couldn't receive something because it didn't have a tuner available.