JPEG transformations
| qpx_JPEGTransformNone | 0 | Do not transform |
| qpx_JPEGFlipHorz | 1 | Flip horizontally |
| qpx_JPEGFlipVert | 2 | Flip vertically |
| qpx_JPEGMirrorAcrossUL2LRAxis | 3 | Mirror across upper-left to lower-right axis |
| qpx_JPEGMirrorAcrossUR2LLAxis | 4 | Mirror across upper-right to lower-left axis |
| qpx_JPEGRotate90 | 5 | Rotate 90 |
| qpx_JPEGRotate180 | 6 | Rotate 180 |
| qpx_JPEGRotate270 | 7 | Rotate 270 |