VST 3.7.9 SDK Released

Yvan · October 9, 2023, 4:14pm

Dear VST Developers,

Steinberg Media Technologies today releases the VST SDK 3.7.9

Here’s a brief overview of changes:

Version 3.7.9 (2023/10/09)

Interface changes:
- New Vst::IDataExchangeHandler / Vst::IDataExchangeReceiver: API to send data from the realtime processing function to the controller in a safe and efficient way.
- New Vst::IComponentHandlerSystemTime: API to query the system time from the controller.
- New on Linux: Query IRunLoop from the host context of IPlugFactory3.
- New Flags/Enums:
  - New speakers: kSpeakerLw and kSpeakerRw for Left and Right Wide
  - New predefined 3D speaker arrangements (compatible Dolby Atmos):
    - k90_4_W => L R C Ls Rs Sl Sr Tfl Tfr Trl Trr Lw Rw
    - k91_4_W => L R C Lfe Ls Rs Sl Sr Tfl Tfr Trl Trr Lw Rw
    - k90_6_W => L R C Ls Rs Sl Sr Tfl Tfr Trl Trr Tsl Tsr Lw Rw
    - k91_6_W => L R C Lfe Ls Rs Sl Sr Tfl Tfr Trl Trr Tsl Tsr Lw Rw
VSTGUI update 4.13.0
Documentation
- New tutorial: Data Exchange Tutorial - How to send data from the realtime process to the edit controller.
- New doc page about Provide a RunLoop on Linux.
cmake
- Change minimal cmake version to 3.5.0.
- Partially fix for Windows, create destination installation folders if they don’t exist (Issue#8).
Plug-in Wrappers:
- AAX Wrapper (VST 3 - AAX Wrapper):
  - fix some warnings
- Audio Unit:
  - AUv3Wrapper:
    - Fix iOS build errors (PR#47)
    - Make AUv3 follow VST3 threading model (PR#62)
    - Fix “Missing field initializer” warnings in AUv3Wrapper (Issue#55)
Examples:
- New VST 3 plug-ins example DataExchange showing the use of the VST Data Exchange API: public.sdk/samples/vst/dataexchange.
- Update Hostchecker plug-in to check new interfaces: Vst::IDataExchangeHandler / Vst::IDataExchangeReceiver / Vst::IComponentHandlerSystemTime.
Helpers classes:
- New helper for system time public.sdk/source/vst/utility/systemtime.cpp.
- New VST Data Exchange API Helper implementing IDataExchangeHandler: public.sdk/source/vst/utility/dataexchange.cpp.
- Fix “Missing field initializer” warning in vstparameters.h (PR#60).
- Fix buffer overflow/memory corruption (Issue#15).
- Fix undefined behavior - load of misaligned address (Issue#64).
- vstgui4 seems incomplete on Linux (Issue#104).
Validator:
- Allow moduleinfo.json and IPluginCompatibility to coexist, not seen as error but warning (not recommanded!) (Issue#63).
VST3 Project Generator v2023.09:
- Rename SMTG_ADD_VSTGUI to SMTG_ENABLE_VSTGUI_SUPPORT.

The SDK can be downloaded here:

Online documentation available under:
VST - VST 3 Developer Portal (steinbergmedia.github.io)

Your Steinberg Team

pongasoft · October 12, 2023, 12:55pm

According to @Arne_Scheffler, the new linux addition (“Query IRunLoop from the host constext of IPlugFactory3”) requires a buy-in from the host as they need to implement it.

Does the new feature “API to send data from the realtime processing function to the controller in a safe and efficient way” require also an implementation on the host side or is it self-contained/ready to use in any DAW?

pongasoft · October 12, 2023, 1:01pm

@Yvan It seems that the project hosted on github does not have tag corresponding to this release.

Arne_Scheffler · October 12, 2023, 1:07pm

From the documentation:

As this API needs support from the host and not all hosts provide this API right from the start, the SDK contains a backwards compatibility layer that either uses the API directly, if available, or an alternative method based on the IMessage API to emulate the API. See the tutorial on how to use it.

Yvan · October 12, 2023, 1:48pm

are you sure?

pongasoft · October 12, 2023, 2:24pm

It did not when I sent this message. It does now: v3.7.9_build_61