Better, Faster and More Pixel Handling with SMPTE VC-3 Codec Updates

摘要

As the industry moves towards Better - High dynamic range, Faster - high frame rates, and More - higher resolutions, the SMPTE VC-3 video codec standard has been improved to meet the challenges. The extension to the standard allows for resolution independent encoding of arbitrary raster resolution, any frame rate, multiple bit-depths and different color spaces. New features of the codec include new quality levels, 4:2:0, 4:2:2, 4:4:4, Alpha channel, SDI-safe and graphics level, out-of-band encoding and support in various container types. As a low-complexity codec appropriate for editorial intermediates and collaborative editing, the high performance characteristics and predictable bit-rates properties are discussed. Its value as a mezzanine format is illustrated with the ability to preserve original resolutions, color and temporal properties from acquisition formats, post-production and VFX effects rendering. Working together with corresponding metadata defined in popular wrapper formats such as MXF and Quick Time, its use for post-production workflows involving HDR, wide gamuts and Super Hi-Vision will be shown.