In the middle there is a secondary transition button, allowing for transitioning to the non-active scene in the left window using user-defined 'quick transitions'. When in Studio Mode, there are two canvas preview windows, the left one for modifying and preview of non-active scenes, while the right window is for preview of the live scene ('Preview' and 'Program' respectively). The user interface can be switched to a variety of themes, including both dark and light themes, depending on what the user prefers.

The upper section has a live video preview, used to monitor and edit the current scene. The control panel has options for starting/stopping a stream or recording, a button to transform OBS to a more professional Studio Mode (see below), a button for opening the settings menu and a button to exit the program. The mixer panel lets the user mute the audio, and adjust the volume through virtual faders, and apply effects by pressing the cogwheel next to the mute button. Scenes are groups of sources like live and recorded video, text and audio. The main user interface is organized into five sections: scenes, sources, audio mixer, transitions, and controls. OBS Studio also supports plug-ins to extend its functionality. More experienced users can choose any codecs and containers available in libavcodec and libavformat, or output the stream to a custom FFmpeg URL. It can encode multiple tracks of audio in the AAC format. įor video encoding, OBS Studio can use the x264 transcoder, Intel Quick Sync Video, Nvidia NVENC and the AMD Video Coding Engine to encode video streams into the H.264/MPEG-4 AVC or H.265/HEVC formats. It can stream videos to any RTMP-supporting destination, including YouTube, Twitch, Instagram and Facebook. Written in C/ C++ and built with Qt, OBS Studio provides real-time capture, scene composition, recording, encoding, and broadcasting via Real Time Messaging Protocol (RTMP), HLS, SRT or RIST. OBS Studio is a free and open-source app for screencasting and live streaming. The OBS Project raises funds on the platforms Open Collective and Patreon. It is available for Windows, macOS, Linux distributions, and BSD. OBS Studio (also Open Broadcaster Software or OBS, for short) is a free and open-source, cross-platform screencasting and streaming app.

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