falktx @falktx@mastodon.falktx.com

@amadeus thanks for the initiative!

reminds me of https://xkcd.com/386/ 😅

@amadeus that sounds like they just need to "lazy load" libcurl instead of linking to it.

JUCE supports this for example https://github.com/juce-framework/JUCE/blob/develop/modules/juce_core/juce_core.h#L155

But not all developers even know it's an option. 🤷

@amadeus I do not know, I only heard some some birds that the latest Push 3 is powered by Linux and has Ableton code inside.
So it is technically "Ableton Live on Linux".

Most likely it comes down to support. Many companies use libraries/frameworks that already support Linux. But these companies have no experience with Linux and don't think the expense is justified.

I have seen Linux builds that do run, but due to support costs companies prefer to keep it at macOS + Windows only.

@amadeus by the way there are several issues regarding the licenses of the frameworks, critical ones at that.

LV2 is liberally licensed https://gitlab.com/lv2/lv2/-/blob/main/COPYING
It is not under GPL as the page states, please correct it.

Also VST3 SDK is not free for non-commercial. it is GPLv3+ alike JUCE where you can use it on GPL projects but proprietary software needs a license. (*)
Anyone can make a commercial + open-source VST3 plugin, no limitations there.

* VST3 has a GPL-incompatible clause

@x42 @amadeus that is how we got Ableton Live running on Linux!
just a super tiny subset of Linux, that is.

@amadeus I think it matters for developers seeing the site, as it means there is source code that can be used/seen as reference.

By that I mean, if a developer sees an issue with their Linux builds but some other random plugin X does not have those issues, seeing that X plugin as opensource is very helpful as then its source code can be studied to understand what it is doing differently.

It also helps in the case of "how do I do X and Y on Linux?" if other devs did it before

@amadeus for this "DISTRHO" would be the vendor, the name doesnt mean anything it was just a typo that stuck.

DPF stands for "DISTRHO Plugin Framework".

mobile platforms are not supported. I honestly never bothered to even try

@amadeus all platforms, including those that other platforms typically dont care about - like BSD and Web/wasm. It should work on any regular Linux/Unix/Posix-like system with X11. Very little code there is Linux specific.

Someday the GUI side will work on HaikuOS too, but not really rushing for that.

@amadeus wait maybe I misuderstood, do you only want to showcase "commercial" plugins there?

I would be sad if so.

If someone does everything else the "commercial" counterparts do - pre-compiled binaries, project website/homepage etc does it really make a difference?

I don't like to put a price on the things I do regarding software, don't want to start now.

@amadeus DISTRHO is missing from the list, which has, among other things, Cardinal and Ildaeil.

https://github.com/DISTRHO/DPF/ could be shown as alternative to JUCE.

It is what pretty much all my plugins use.

I guess this means I really need to make my projects more visible...

@texec less than 10ms was the target.
with this change the device-induced latency is around 5.5ms, then any extra for block-size buffers (so e.g. 2.6ms for 128 frames / 48kHz)

For the curious ones, kernel diff https://github.com/Darkglass-Electronics/radxa-kernel/commit/1c99fb0a7788811a4eb212c3c0bdcb64dc9d955f

and user-space side https://github.com/falkTX/audio-bridge/blob/main/src/audio-device-impl-linux-mmap.cpp

The things we do for a few milliseconds of latency...

Like today, patching the Linux kernel to create a memory-mapped buffer that both the kernel and a JACK client can use at the same time.
(the previous/mainline code was using an alsa virtual device to expose the audio data)

Reduced latency of the "task" by around 20ms ✨

Now just need to deal with ARM memory barriers and other details to ensure a good sync, I think...

Not that anyone cares, but just built and installed Cardinal on the Darkglass Anagram unit for quick testing...

The JTB-Waves patch runs with a stable 58% DSP load.

Makes me think of fancy "build your own FX" possibilities...

@PaulDavisTheFirst the linux embed device as a usb device, aka "gadget".

This little Anagram can be used as a USB2 class-compliant audio card.

All the tuning and patching to get this feature to work just right is giving me headaches though 😭

This Anagram audio graph is looking complex now that USB audio is in the picture... 😁

Average 35% DSP load with this preset