XAVC uses level 5.2 of H.264/MPEG-4 AVC which is the highest level supported by that video standard. XAVC can support 4K resolution (4096 Ã 2160 and 3840 Ã 2160) at up to 60 frames per second (fps). XAVC supports color depths of 8, 10, and 12 bits. Chroma subsampling can be 4:2:0, 4:2:2, or 4:4:4. The Material Exchange Format (MXF) can be used for the digital container format.
infantile (comparative more infantile, superlative most infantile) 1  Pertaining to infants. infantile paralysis. 1963, Margery Allingham, chapter 9, in The China Governess: Eustace gaped at him in amazement. 2  Childish; immature.
Infantile spasms (West syndrome) are muscle spasms that affect a child's head, torso, and limbs. Infantile spasms usually begin before the age of 6 months.Most children with infantile spasms have below-normal intelligence. More than half have severe disabilities.Although an exact cause cannot always be found, infantile spasms may be caused by diseases, injuries, or infections that occurred before or during birth.Infantile spasms are treated with adrenocorticotropic hormone (Acthar) or prednisone.