[null,null,["最后更新时间 (UTC)：2025-07-25。"],[[["\u003cp\u003eThe \u003ccode\u003ecast.framework.events.Id3Event\u003c/code\u003e class provides data for ID3 metadata events within the Cast framework, delivering information frame by frame.\u003c/p\u003e\n"],["\u003cp\u003eThis event includes the frame type, description, and data but excludes the raw ID3 message structure like headers and flags.\u003c/p\u003e\n"],["\u003cp\u003eID3 frame details like \u003ccode\u003eframeType\u003c/code\u003e, \u003ccode\u003eframeDescription\u003c/code\u003e, and \u003ccode\u003esegmentData\u003c/code\u003e are accessible via corresponding properties of the \u003ccode\u003eId3Event\u003c/code\u003e object.\u003c/p\u003e\n"],["\u003cp\u003eDevelopers can use this event to access and utilize ID3 metadata, such as song titles or artist information, during media playback.\u003c/p\u003e\n"]]],[],null,["# Class: Id3Event\n\ncast.[framework](/cast/docs/reference/web_receiver/cast.framework).[events](/cast/docs/reference/web_receiver/cast.framework.events).Id3Event\n=============================================================================================================================================\n\nclass static\n\nEvent data for a `cast.framework.events.EventType.ID3` event.\nThe ID3 metadata provided here follows the ID3 v2 formatting.\nOne event is fired per frame within the ID3 message.\nThis event does NOT contain the entire, raw ID3 message. Given the following\nsubsections of an ID3 message:\n\n1. ID3v2 / file identifier\n2. ID3v2 version\n3. ID3v2 flags\n4. ID3v2 size\n5. Frame type (i.e. `TXXX`)\n6. Frame size\n7. Frame flags\n8. Frame encoding\n9. Frame description\n10. Frame data\n\nOnly items `5` (`frameType`), `9` (`frameDescription`), and `10`\n(`segmentData`) are provided in this event.\n\nConstructor\n-----------\n\n### Id3Event\n\nnew\nId3Event(segmentData, timestamp, frameDescription, frameType)\n\n| #### Parameter ||\n|------------------|---------------------------------------------|\n| segmentData | Uint8Array Value must not be null. |\n| timestamp | number |\n| frameDescription | Optional Uint8Array Value must not be null. |\n| frameType | Optional string |\n\nProperties\n----------\n\n### frameDescription\n\nconstant\n\n(non-null Uint8Array or undefined)\n\nThe ID3 frame's description.\n\n### frameType\n\nconstant\n\n(string or undefined)\n\nThe ID3 frame tag. A full list of possible tags are listed in\nhttps://exiftool.org/TagNames/ID3.html.\n\n### segmentData\n\nconstant\n\nnon-null Uint8Array\n\nThe ID3 frame's data.\n\n### timestamp\n\nconstant\n\nnumber\n\nThe media start time of the ID3 message in seconds."]]
