René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"MOS object definition","articleBody":"This is a proposal to add a specification for how an OGraf MOS-object should look like.\n\n## Background\n\nThe [MOS-protocol](https://mosprotocol.com/) allows for arbitrary (vendor-specific) objects to be defined inside the `\u003cmosExternalMetadata\u003e` tags. I believe it would be useful to expand the OGraf specification _early_ to include a specification for MOS-OGraf-objects, as this could cause an interoperable ecosystem of MOS-plugins and automation systems to emerge.\n\n\n## Proposal\n\nNote: This proposal is dependent of the [upcoming ServerAPI](https://github.com/ebu/ograf/pull/12) definition, as the properties of the MOS-object will be used by a Controller which will (likely) communicate with an OGraf-compatible API.\n\nI propose that an OGraf graphic instance is defined under `\u003cmosExternalMetadata\u003e` below:\n\n```xml\n\n\u003cstoryItem\u003e\n  \u003citemID\u003e1\u003c/itemID\u003e\n  \u003citemSlug\u003eL3D: John Doe, OGraf expert\u003c/itemSlug\u003e\n  \u003cobjID\u003eABC123\u003c/objID\u003e\n  \u003cmosID\u003emyMosId\u003c/mosID\u003e\n  \u003citemEdStart\u003e0\u003c/itemEdStart\u003e\n  \u003citemEdDur\u003e7000\u003c/itemEdDur\u003e\n  \u003cmosExternalMetadata\u003e\n    \u003cmosScope\u003ePLAYLIST\u003c/mosScope\u003e\n    \u003cmosSchema\u003ehttps://ograf.ebu.io/v1/specification/mos-schemas/ograf-object.dtd\u003c/mosSchema\u003e\n    \u003cmosPayload\u003e\n\n      \u003c!--\n        (Optional) rendererId, used by a MOS-plugin to set which Renderer the graphic is intended for.\n      --\u003e\n      \u003crendererId\u003erenderer-0\u003c/rendererId\u003e\n\n      \u003c!--\n        (Optional) renderTarget, used by a MOS-plugin to set which RenderTarget the graphic is intended for.\n        Note: CDATA must be used to wrap the JSON content.\n      --\u003e\n      \u003crenderTarget\u003e\u003c![CDATA[{ \"layerId\": \"layer-0\" }]]\u003e\u003c/renderTarget\u003e\n\n      \u003c!--\n        graphicId, the ID of the graphic to be used.\n      --\u003e\n      \u003cgraphicId\u003egfx/lowerthird\u003c/graphicId\u003e\n\n      \u003c!--\n        data, JSON data to be sent into the graphic.\n        Note: CDATA must be used to wrap the JSON content.\n      --\u003e\n      \u003cdata\u003e\u003c![CDATA[{ \"name\": \"John Doe\", \"title\": \"OGraf expert\" }]]\u003e\u003c/data\u003e\n\n      \u003c!-- \n        (Optional) customActions, a list of actions intended to be presented to a user at the time of playout.\n        The user can pick from these actions to trigger a change in the graphic.\n      --\u003e\n      \u003ccustomActions\u003e\n        \u003caction\u003e\n\n          \u003c!-- Id of the customAction to call --\u003e\n          \u003cactionId\u003eaction0\u003c/actionId\u003e\n\n          \u003c!-- Payload to send into the customAction --\u003e\n          \u003cpayload\u003e\u003c![CDATA[{ \"data\": \"123\" }]]\u003e\u003c/payload\u003e\n\n        \u003c/action\u003e\n      \u003c/customActions\u003e\n    \u003c/mosPayload\u003e\n  \u003c/mosExternalMetadata\u003e\n\u003c/storyItem\u003e\n\n```","author":{"url":"https://github.com/nytamin","@type":"Person","name":"nytamin"},"datePublished":"2025-09-22T06:19:28.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":6},"url":"https://github.com/28/ograf/issues/28"}