Companion Hevc

pixels. This allows the encoder to compress large, uniform areas (like a blue sky) far more effectively.

Your device must be set to output 4K/HDR to trigger HEVC support properly. companion hevc

The real promise of Companion HEVC isn’t just efficiency—it’s . As more devices include dedicated NPUs (neural processing units), the “companion” data could shift from pixel-domain residuals to feature-domain vectors. Imagine a base stream at 360p, plus a set of motion vectors and texture embeddings that an AI decoder uses to synthesize a 4K frame in real time. pixels

Unlike older standards that used small pixel blocks, HEVC uses much larger blocks up to The real promise of Companion HEVC isn’t just

Roku devices (and many smart TVs) natively decode and Dolby Digital (AC3/EAC3) audio. They often FAIL to natively decode:

HEVC 4K requires high bandwidth.

HEVC achieves these gains through several sophisticated "companion" tools and processes: