OBS Studio 32.2: SDR-to-HDR Filter and Dynamic Bitrate for Multitrack Video

Two Long-Requested Features, One Release

OBS Studio 32.2 shipped in late July 2026 with two additions that have sat in the feature request backlog for years: an SDR-to-HDR composition filter and dynamic bitrate support for multitrack video output. Neither is glamorous. Both are the kind of thing that makes professional streaming setups meaningfully more capable.

SDR-to-HDR: What It Does and Who Needs It

Most streaming sources — game capture, window capture, browser sources — are SDR (Standard Dynamic Range), outputting in a rec.709 color space. Modern monitors and TVs increasingly support HDR. Until now, if you were trying to produce an HDR stream or recording, you had to either manage colorspace conversion externally or accept that your SDR sources would look washed out against any HDR elements in your scene.

The new SDR-to-HDR composition filter handles this conversion inside OBS, per-source. You apply it to an SDR source in your scene, configure the target luminance mapping, and OBS handles the lift. The filter uses an ACES-based tone mapping curve by default — the same algorithm used in film and broadcast production — which tends to preserve highlight detail better than a simple gamma correction.

In practical terms: streamers running HDR-capable setups can now mix SDR game footage with HDR sources (HDR webcams, HDR graphics overlays) without visible color-space seams. Creators recording for YouTube's HDR pipeline can do the conversion in OBS rather than in post.

Dynamic Bitrate for Multitrack Video

Multitrack video output — shipping separate video tracks for different purposes (main stream, local archive, highlight cut) — has been in OBS for some time. What it lacked was dynamic bitrate: the ability to automatically reduce bitrate when your upstream bandwidth degrades, to prevent dropped frames, and increase it again when bandwidth recovers.

32.2 adds dynamic bitrate support specifically to multitrack video. This matters most for streamers on variable or congested connections — home broadband that gets slower during peak hours, conference venue Wi-Fi, mobile hotspot setups. With dynamic bitrate on, OBS can smooth over a 30-second bandwidth dip without the stream dying; without it, you get a wall of dropped frames or a disconnection.

The behavior is configurable: you set a minimum bitrate floor (below which OBS will cut the stream rather than degrade further) and a recovery speed (how aggressively bitrate is reclaimed when conditions improve). The defaults are conservative and should work without tuning for most setups.

OBS 32.x: A Series Worth Noting

The 32.x series has been a run of practical additions aimed at professional and semi-professional streamers rather than hobbyist users. 32.0 brought initial HDR compositing groundwork; 32.1 added scene collection sync improvements and source grouping performance fixes. 32.2's additions continue that trajectory: both features require understanding what you're doing to configure correctly, and both pay off when you do.

OBS remains free and open source under the GPLv2 license. Binaries for Windows, macOS, and Linux are available at obsproject.com, and the full release changelog is on GitHub.