Hello Video AI users!
Today we’re very excited to release Video AI 5.4
This release includes three major updates focused on output quality and app performance:
1. All-new, GPU-accelerated video player
Video AI 5.4 uses an mpv-based video player that unlocks incredible improvements to playback performance. Scrub through highly-compressed input videos, or massive uncompressed media with near-instant responsiveness. This new player also supports HDR displays and audio playback! The old live preview behavior with the “Render” button is also restored. Right now, the new player is available on Windows only. We are working on bringing this player to macOS very soon.
Playback of 8K video with old player:
Playback of 8K video with new player:
2. Hyperion SDR-to-HDR model
This model is designed to perform inverse tonemapping by increasing the bit depth, expanding the color gamut, and brightening the highlights of input videos. It improves contrast and recovers detail in highlight and shadow areas of standard dynamic range inputs, and produces HDR10 (BT.2020/PQ) output.
Controls:
Exposure adjustment slider: This slider allows the user to increase the exposure of the scene by up to 1 stop. This adjustment primarily affects the brightness of the shadows and midtones.
Highlight threshold slider: This slider explicitly tells the model the lowest intensity level to be considered a highlight. This slider should be set to a value higher than the brightest skin-tone (or any other color where accuracy is vital) present in the video. In practical terms, we recommend starting with the default setting and raising the value if undesirable color shifts appear.
Saturation boost slider: The HDR color space has a larger color gamut and supports more saturated colors. Turning this slider up results in more saturated outputs in HDR without loss of detail. This slider will, however, lead to a color shift.
We definitely recommend checking out the new Docs page for more information on Hyperion!
3. Rhea XL (RXL) Enhancement model
RXL is an even larger variant of Rhea, and is designed to handle complex textures in a more refined way.
The model requires significantly more VRAM and GPU power than previous models, so expect some longer processing times compared to Proteus or Iris.
RXL is currently listed as a “model variant” under Rhea in the Enhancement filter menu. This may change in future updates based on feedback and model fine-tuning.
Known issues:
- Hyperion SDR-to-HDR does not currently support Intel-based macOS systems.