The release of OBS Studio 27.0 for streaming, compositing and video recording has been announced. The code is written in C/C++ and distributed under the GPLv2 license. Assemblies are generated for Linux, Windows and macOS.
The development goal of OBS Studio is to create a free analogue of the Open Broadcaster Software application that is not tied to the Windows platform, supports OpenGL and is extensible through plugins. The difference is also the use of a modular architecture, which implies the separation of the interface and the core of the program. Supports transcoding of source streams, capturing video during games and streaming to Twitch, Facebook Gaming, YouTube, DailyMotion, Hitbox and other services. To ensure high performance, hardware acceleration mechanisms (eg NVENC and VAAPI) can be used.
Support is provided for compositing with building a scene based on arbitrary video streams, data from web cameras, video capture cards, images, text, the contents of application windows or the entire screen. During the broadcast, switching between several predefined scene options is allowed (for example, to switch views with an emphasis on the screen content and the image from the webcam). The program also provides tools for audio mixing, filtering with VST plugins, volume leveling and noise suppression.
In the new version:
- Implemented change rollback functionality (Undo and Redo), which tracks program actions that affect the preview, including changes to the scene, sources, groups, filters and scripts. The change rollback buffer includes the last 5 thousand actions and is reset to zero when restarting or switching scene collections.
- The Linux platform supports the Wayland protocol, as well as the ability to use the PipeWire multimedia server as a source for capturing video and audio. OBS Studio can now run as a Wayland application and capture windows and screens in custom Wayland-based environments. A ready-made assembly of OBS Studio with Wayland support has been prepared in flatpak format.
- Added a new screen capture method (Display Capture) that works on systems with multiple GPUs and solves the problem of getting a blank image on some laptops with hybrid graphics (now you can not limit the output to the integrated GPU and capture the screen when using a discrete card).
- Provides the ability to attach transition effects to operations to enable or hide a source (audio and video capture devices, media files, VLC player, images, windows, text, etc.).
- For macOS and Linux platforms, integration with streaming services (Twitch, Mixer, YouTube, etc.) has been implemented and the ability to embed a browser window (Browser Dock) has been added.
- Added a warning dialog about missing files when loading scene collections, working for all built-in sources, including Browser and VLC Video. The dialog offers options for selecting a different directory, replacing a file, and searching for missing files. When you move all files to another directory, you have the option to update file information in batches.
- For the Windows platform, the Noise Suppression filter supports the NVIDIA Noise Removal noise suppression mechanism.
- The Track Matte mode has been added to animation-based transition effects (Stinger Transition), which allows you to organize a transition with simultaneous displays of parts of the new and old scene.
- Added support for textures in SRGB format and applying color operations in linear color space.
- When saving a file, the full path to the file is shown in the status bar.
- A virtual camera toggle has been added to the menu displayed on the system tray.
- Added a setting to disable automatic camera rotation for selected video capture devices.
Source: opennet.ru