类：SetPlaybackRateRequestData
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最后更新时间 (UTC)：2025-07-25。
[null,null,["最后更新时间 (UTC)：2025-07-25。"],[[["\u003cp\u003e\u003ccode\u003eSetPlaybackRateRequestData\u003c/code\u003e is used to request a change in media playback rate.\u003c/p\u003e\n"],["\u003cp\u003eIt provides properties to set the desired playback rate or a relative rate change.\u003c/p\u003e\n"],["\u003cp\u003eIt includes standard request properties like \u003ccode\u003erequestId\u003c/code\u003e, \u003ccode\u003emediaSessionId\u003c/code\u003e, and optional custom data.\u003c/p\u003e\n"],["\u003cp\u003eThis class inherits from \u003ccode\u003ecast.framework.messages.RequestData\u003c/code\u003e and extends its functionality for playback rate control.\u003c/p\u003e\n"]]],[],null,["# Class: SetPlaybackRateRequestData\n\ncast.[framework](/cast/docs/reference/web_receiver/cast.framework).[messages](/cast/docs/reference/web_receiver/cast.framework.messages).SetPlaybackRateRequestData\n===================================================================================================================================================================\n\nclass static\n\nMedia event playback rate request data.\n\nConstructor\n-----------\n\n### SetPlaybackRateRequestData\n\nnew\nSetPlaybackRateRequestData()\n\nExtends\n: [cast.framework.messages.RequestData](/cast/docs/reference/web_receiver/cast.framework.messages.RequestData)\n\nProperties\n----------\n\n### customData\n\n(non-null Object or undefined)\n\nApplication-specific data for this request. It enables the sender and\nreceiver to easily extend the media protocol without having to use a new\nnamespace with custom messages.\n\nInherited from\n: [cast.framework.messages.RequestData#customData](/cast/docs/reference/web_receiver/cast.framework.messages.RequestData#customData)\n\n### mediaSessionId\n\n(number or undefined)\n\nId of the media session that the request applies to.\n\nInherited from\n: [cast.framework.messages.RequestData#mediaSessionId](/cast/docs/reference/web_receiver/cast.framework.messages.RequestData#mediaSessionId)\n\n### playbackRate\n\n(number or undefined)\n\nNew playback rate (\\\u003e0).\n\n### relativePlaybackRate\n\n(number or undefined)\n\nNew playback rate relative to current playback rate.\nNew rate will be the result of multiplying the current rate with the\nvalue. For example a value of 1.1 will increase rate by 10%.\n(Only used if the playbackRate value is not provided).\n\n### requestId\n\nnumber\n\nId of the request, used to correlate request/response.\n\nInherited from\n: [cast.framework.messages.RequestData#requestId](/cast/docs/reference/web_receiver/cast.framework.messages.RequestData#requestId)\n\n### sequenceNumber\n\n(number or undefined)\n\nA number to synchronize all queue commands.\nIf provided for a queue command, the SDK will verify the queue latest\nsequence number match the request.\nCurrent sequenceNumber is provided as part of outgoing queue changed\nmessages.\n\nInherited from\n: [cast.framework.messages.RequestData#sequenceNumber](/cast/docs/reference/web_receiver/cast.framework.messages.RequestData#sequenceNumber)"]]
