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Sheer Codecs

Introduction
Sheer
Sheer RGB[A] 8bf
Sheer RGB[A] 10bf
Sheer Y
Sheer Y
Sheer Y
Sheer Y
Sheer Y


SheerVideo User Manual

Sheer Codecs
Sheer RGB[A] 10bf


Sheer RGB[A] 10bf Sheer RGB[A] 10bf is for use in applications dealing in high-precision scanned film and computer-generated imagery.

This codec perfectly encodes all RGB[A] 10bf source footage in real time, with an average compression power of 2.2, so that the Sheer RGB[A] 10bf files take up only 45% as much space as the uncompressed RGB[A] 10bf originals, with zero loss of information.

Sheer RGB[A] 10bf both encodes and decodes losslessly in real time from and to all RGB[A] 10bf pixel formats (10-bit 'b64a', 10-bit 'L64A', 10-bit 'A46L', 10-bit 'b48r', 'F10k', 'F210', full-range 'R10k', and full-range 'r210') making it ideal for editing in RGB[A] 10bf formats.

For faster but lower-quality display, Sheer RGB[A] 10bf can decode in real time all RGB[A] 8bf pixel formats (ARGB, and, on PC+Windows, ABGR, RGBA, BGRA, RGB, and BGR), as well as RGB 5bf pixel formats (B555, and, on PC+Windows, L555 and L565).

Using Synchromy, this codec also losslessly encodes from Y'CbCr[A] 8bv 4:4:4[:4] pixel formats ('v408', 'VUYA', 'r408'); and losslessly decodes to Y'CbCr[A] ≥12bv 4:4:4[:4] pixel formats ('r4fl', 'V416'), and, for RGB[A] 8bf source footage, to Y'CbCr[A] ≥10bv 4:4:4[:4] pixel formats ('v410').

In addition, Sheer RGB[A] 10bf uses Synchromy to decode with the minimal loss theoretically possible to RGB[A] <11bv pixel formats ('VRGB', 'S10k', 'S210', video-range 'R10k', and video-range 'r210'), and to Y'CbCr[A] <12bv pixel formats ('v408', 'VUYA', 'r408', 'v210', 'v216', 'Y216', '2vuy', '2Vuy', and 'yuvs').

Sheer RGB[A] 10bf Codec Encoding and Decoding Capabilities

Pixel lossless real-time
Pixel Type Format encode decode encode decode encode decode
RGB[A] 16bf 'b64a' 10b
RGB[A] 16bf 'L64A' 10b
RGB[A] 16bf 'A46L' 10b
RGB 16bf 'b48r' 10b α
RGB 10bf 'F10k' α
RGB 10bf 'F210' α
RGB 10b 'R10k' [] α f f
RGB 10b 'r210' [] α f f
RGB 10bv 'S10k' [] α - -
RGB 10bv 'S210' [] α - -
RGB[A] 8bf ARGB 8b
RGB[A] 8bf ABGR W W 8b
RGB[A] 8bf RGBA W W 8b
RGB[A] 8bf BGRA W W 8b
RGB[A] 8bv 'VRGB' [] 8b - -
RGB 8bf RGB W W α,8b
RGB 8bf BGR W W α,8b
RGB 5bf B555 - - α,5b -
RGB 5bf L555 - W - α,5b -
RGB 5bf L565 - W - α,5b -
Y'CbCr[A] 32bu 4:4:4[:4] 'r4fl' [8b] 10b - -
Y'CbCr[A] 16bv 4:4:4[:4] 'V416' [8b] 10b - -
Y'CbCr 10bv 4:4:4 'v410' [8b] α8b - -
Y'CbCr[A] 8bv 4:4:4[:4] 'v408' [] 6b - -
Y'CbCr[A] 8bv 4:4:4[:4] 'VUYA' [] 6b - -
Y'CbCr[A] 8bu 4:4:4[:4] 'r408' ] 6b - -
Y'CbCr 16bv 4:2:2 'v216' - - - -
Y'CbCr 16bv 4:2:2 'Y216' - - - -
Y'CbCr 10bv 4:2:2 'v210' - - - -
Y'CbCr 8bv 4:2:2 '2vuy' - - - -
Y'CbCr 8bv 4:2:2 '2Vuy' - - - -
Y'CbCr 8bv 4:2:2 'yuvs' - - - -
Y'CbCr 8bw 4:2:2 'yuvu' - - - - - -
Y'CbCr 8bw 4:2:2 'yuv2' - - - - - -

Key:

fully supported
- not supported
W Windows only
[] in-range values only
10b 10-bit precision only
α without alpha
f full-range only

Sheer RGB[A] 10bf has four variant formats: with versus without alpha, and progressive versus interlaced scan mode. Alpha is selected as a QuickTime setting, and is indicated by an A (Alpha) after the color-space name. The scan mode is selected as a Sheer setting, and is indicated by a p (progressive) or i (interlaced) at the end.

Sheer RGBA 10bf p with alpha progressive scan
Sheer RGBA 10bf i with alpha interlaced scan
Sheer RGB 10bf p without alpha progressive scan
Sheer RGB 10bf i without alpha interlaced scan


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