@wordpress/upload-media/build-module/store/utils/video-conversion.mjs.map

Core media upload logic.

{
  "version": 3,
  "sources": ["../../../src/store/utils/video-conversion.ts"],
  "sourcesContent": ["/**\n * Internal dependencies\n */\nimport { getFileBasename } from '../../utils';\nimport type { QueueItemId } from '../types';\n\n/**\n * Message prefix used by @wordpress/video-conversion to flag an\n * unsupported-but-graceful conversion outcome (no WebCodecs, unsupported\n * codec). This MUST mirror the package's exported `UNSUPPORTED_ERROR_PREFIX`.\n *\n * It is duplicated here rather than imported because the only path that\n * carries the constant (`@wordpress/video-conversion`) statically pulls the\n * heavy encoder library into the main bundle, defeating the lazy worker\n * load. The worker RPC layer (comctx) also serializes a thrown error to its\n * `message` string only, so the cross-boundary contract is inherently a\n * message prefix. `isUnsupportedConversionError` is unit-tested against the\n * exact strings the worker throws to catch any drift.\n */\nconst UNSUPPORTED_ERROR_PREFIX = 'Unsupported';\n\n/**\n * Whether an error from GIF-to-video conversion represents an\n * unsupported-but-graceful outcome (caller should fall back to uploading the\n * original GIF) rather than a hard failure.\n *\n * @param error Error thrown by `convertGifToVideo`.\n * @return Whether the error is a graceful \"unsupported\" outcome.\n */\nexport function isUnsupportedConversionError( error: unknown ): boolean {\n\treturn (\n\t\terror instanceof Error &&\n\t\terror.message.startsWith( UNSUPPORTED_ERROR_PREFIX )\n\t);\n}\n\n/**\n * Cached dynamic import promise for @wordpress/video-conversion/worker.\n *\n * Using a dynamic import keeps the worker module out of the main bundle; it\n * is fetched only when GIF-to-video conversion is actually triggered.\n */\nlet videoConversionModulePromise:\n\t| Promise< typeof import('@wordpress/video-conversion/worker') >\n\t| undefined;\n\n/**\n * The resolved module reference, available synchronously after first load.\n */\nlet videoConversionModule:\n\t| typeof import('@wordpress/video-conversion/worker')\n\t| undefined;\n\n/**\n * Lazily loads and caches the @wordpress/video-conversion/worker module.\n *\n * @return The video conversion worker module.\n */\nfunction loadVideoConversionModule(): Promise<\n\ttypeof import('@wordpress/video-conversion/worker')\n> {\n\tif ( ! videoConversionModulePromise ) {\n\t\tvideoConversionModulePromise = import(\n\t\t\t'@wordpress/video-conversion/worker'\n\t\t)\n\t\t\t.then( ( mod ) => {\n\t\t\t\tvideoConversionModule = mod;\n\t\t\t\treturn mod;\n\t\t\t} )\n\t\t\t.catch( ( error ) => {\n\t\t\t\t/*\n\t\t\t\t * Reset the cached promise so a transient chunk-load failure\n\t\t\t\t * does not permanently break later conversions; the next call\n\t\t\t\t * retries the import.\n\t\t\t\t */\n\t\t\t\tvideoConversionModulePromise = undefined;\n\t\t\t\tthrow error;\n\t\t\t} );\n\t}\n\treturn videoConversionModulePromise;\n}\n\n/**\n * Converts an animated GIF to a video file using the video conversion worker.\n *\n * @param id             Queue item ID.\n * @param file           GIF file object.\n * @param outputMimeType Output MIME type ('video/mp4' or 'video/webm').\n * @param maxDimensions  Optional maximum dimension for downscaling.\n * @return Converted video file.\n */\nexport async function convertGifToVideo(\n\tid: QueueItemId,\n\tfile: File,\n\toutputMimeType: string,\n\tmaxDimensions?: number\n) {\n\tconst { convertGifToVideo: convert } = await loadVideoConversionModule();\n\t// Pass the File straight through: the worker reads its bytes once, off\n\t// the main thread, instead of materializing an ArrayBuffer here.\n\tconst buffer = await convert( id, file, outputMimeType, maxDimensions );\n\n\tconst ext = outputMimeType === 'video/webm' ? 'webm' : 'mp4';\n\tconst fileName = `${ getFileBasename( file.name ) }.${ ext }`;\n\treturn new File(\n\t\t[ new Blob( [ buffer as ArrayBuffer ], { type: outputMimeType } ) ],\n\t\tfileName,\n\t\t{ type: outputMimeType }\n\t);\n}\n\n/**\n * Cancels all ongoing GIF-to-video conversions for the given item.\n *\n * @param id Queue item ID to cancel operations for.\n * @return Whether any operation was cancelled.\n */\nexport async function cancelGifToVideoOperations( id: QueueItemId ) {\n\t/*\n\t * Resolve the worker even if it is still loading so a cancel issued during\n\t * the initial lazy-load window is not silently dropped (which would let the\n\t * conversion keep running for an item the caller already cancelled).\n\t */\n\tconst mod =\n\t\tvideoConversionModule ??\n\t\t( videoConversionModulePromise\n\t\t\t? await videoConversionModulePromise.catch( () => undefined )\n\t\t\t: undefined );\n\tif ( ! mod ) {\n\t\treturn false;\n\t}\n\treturn mod.cancelGifToVideoOperations( id );\n}\n\n/**\n * Terminates the video conversion worker if it has been loaded.\n */\nexport function terminateVideoConversionWorker(): void {\n\tif ( videoConversionModule ) {\n\t\tvideoConversionModule.terminateVideoConversionWorker();\n\t\treturn;\n\t}\n\t/*\n\t * The worker is still loading. Terminate it once the import resolves so a\n\t * teardown issued during the lazy-load window is honored rather than\n\t * leaving the worker resident.\n\t */\n\tif ( videoConversionModulePromise ) {\n\t\tvoid videoConversionModulePromise\n\t\t\t.then( ( mod ) => mod.terminateVideoConversionWorker() )\n\t\t\t.catch( () => {} );\n\t}\n}\n"],
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