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| First Frame, Last Frame | int | Encoding to movie files typically looses loses the start frame, making it a pain to identify which frame you are looking at. We could look at doing this with timecode, but sometimes you want both timecode and a frame number. |
| Source filename | string | Something to track where the encoded media came from. |
| Source ID | string | Unique ID from vendor creating content. |
| Source frame rate | float | If you are reviewing a proxy, but still want to remap back to the source frame, knowing the source frame rate is required (DO WE NEED THIS AND LAST FRAME?) – useful for high-frame rate media, e.g. 120 fps - (MIGHT MAKE SENSE AS A STRING TO HANDLE 59.94 better?) |
| image active area | xMin, yMin, xMax, yMax | The bounding box of the picture location within the image. This is used in cases where the image is a re-processed version of the source frame, e..g. where a 2.35 aspect ratio picture has been padded to HD (perhaps timecode is burnt in, etc), this would allow any annotations to be always defined relative to the source frames, so would be able to be correctly overlayed on top. |
| Watermarking? | String | Document what sort of watermarking has been applied? - invisible, burnin? |
| Slate Length | Int | Duration of slate length (0 if no slate). |
| Display Type | Enum | Stereo left/right Stereo top/bottom Long/Lat VR mono Long/Lat VR Stereo top/bottom NOTE: This should be based on existing standards, e.g. https://github.com/google/spatial-media/tree/master/spatialmedia |
| Color Space | string | Many file-formats do already have options for color spaces, but certainly for internal reviews facilities may decide to encode to a non-standard color space. For media that is crossing facilities we should stick to known embedded colorspaces, and allow existing tools to remap where necessary. |
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