| Index1
| Tag Name
| Writable
| Values / Notes
|
| 4
| PixelFormat
| no
| [val >> 13 & 0x7]
0 = Grayscale
1 = 4:2:0 (chroma at 0.5, 0.5)
2 = 4:2:2 (chroma at 0.5, 0)
3 = 4:4:4
4 = 4:2:0 (chroma at 0, 0.5)
5 = 4:2:2 (chroma at 0, 0) |
|
| 4.1
| Alpha
| no
| [val & 0x1004]
0x0 = No Alpha Plane
0x4 = Alpha Exists (W color component)
0x1000 = Alpha Exists (color not premultiplied)
0x1004 = Alpha Exists (color premultiplied)
|
| 4.2
| BitDepth
| no
| [val >> 8 & 0xf]
|
| 4.3
| ColorSpace
| no
| [val >> 4 & 0xf]
0 = YCbCr (BT 601)
1 = RGB
2 = YCgCo
3 = YCbCr (BT 709)
4 = YCbCr (BT 2020)
5 = BT 2020 Constant Luminance |
|
| 4.4
| Flags
| no
| [val & 0xb]
Bit 0 = Animation
Bit 1 = Limited Range
Bit 3 = Extension Present
|
| 6
| Image
| no
|
|
| 7
| Image
| no
|
|
| 8
| ImageLength
| no
| | |