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• 特性
• 方法
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

The WebRTC interface RTCRtpTransceiver describes a permanent pairing of an RTCRtpSender 和 RTCRtpReceiver , along with some shared state.

每个 SDP media section describes one bidirectional SRTP ("Secure Real Time Protocol") stream (excepting the media section for RTCDataChannel , if present). This pairing of send and receive SRTP streams is significant for some applications, so RTCRtpTransceiver is used to represent this pairing, along with other important state from the media section. Each non-disabled SRTP media section is always represented by exactly one transceiver.

A transceiver is uniquely identified using its mid property, which is the same as the media ID ( mid ) of its corresponding m-line. An RTCRtpTransceiver is associated with an m-line if its mid is non-null; otherwise it's considered disassociated.

特性

currentDirection 只读

A read-only string from the enum RTCRtpTransceiverDirection which indicates the transceiver's current directionality, or null if the transceiver is stopped or has never participated in an exchange of offers and answers. To change the transceiver's directionality, set the value of the direction 特性。

direction

A string from the enum RTCRtpTransceiverDirection which is used to set the transceiver's desired direction.

mid 只读

The media ID of the m-line associated with this transceiver. This association is established, when possible, whenever either a local or remote description is applied. This field is null if neither a local or remote description has been applied, or if its associated m-line is rejected by either a remote offer or any answer.

receiver 只读

RTCRtpReceiver object that handles receiving and decoding incoming media.

sender 只读

RTCRtpSender object responsible for encoding and sending data to the remote peer.

stopped

Indicates whether or not sending and receiving using the paired RTCRtpSender and RTCRtpReceiver has been permanently disabled, either due to SDP offer/answer, or due to a call to stop() .

方法

setCodecPreferences()

列表化的 RTCRtpCodecParameters objects which override the default preferences used by the 用户代理 for the transceiver's codecs.

stop()

Permanently stops the RTCRtpTransceiver . The associated sender stops sending data, and the associated receiver likewise stops receiving and decoding incoming data.

规范

规范	状态	注释
WebRTC 1.0: Real-time Communication Between Browsers The definition of 'RTCRtpTransceiver' in that specification.	候选推荐

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
RTCRtpTransceiver	Chrome 69	Edge ≤18	Firefox 59	IE 不支持 No	Opera 不支持 No	Safari Yes	WebView Android 69	Chrome Android 69	Firefox Android 59	Opera Android 不支持 No	Safari iOS Yes	Samsung Internet Android 10.0
currentDirection	Chrome 69	Edge 不支持 No	Firefox 59	IE 不支持 No	Opera 不支持 No	Safari ?	WebView Android 69	Chrome Android 69	Firefox Android 59	Opera Android 不支持 No	Safari iOS ?	Samsung Internet Android 10.0
direction	Chrome 69	Edge 不支持 No	Firefox 59	IE 不支持 No	Opera 不支持 No	Safari Yes	WebView Android 69	Chrome Android 69	Firefox Android 59	Opera Android 不支持 No	Safari iOS Yes	Samsung Internet Android 10.0
mid	Chrome 69	Edge 不支持 No	Firefox 59	IE 不支持 No	Opera 不支持 No	Safari Yes	WebView Android 69	Chrome Android 69	Firefox Android 59	Opera Android 不支持 No	Safari iOS Yes	Samsung Internet Android 10.0
receiver	Chrome 69	Edge 不支持 No	Firefox 59	IE 不支持 No	Opera 不支持 No	Safari Yes	WebView Android 69	Chrome Android 69	Firefox Android 59	Opera Android 不支持 No	Safari iOS Yes	Samsung Internet Android 10.0
sender	Chrome 69	Edge 不支持 No	Firefox 59	IE 不支持 No	Opera 不支持 No	Safari Yes	WebView Android 69	Chrome Android 69	Firefox Android 59	Opera Android 不支持 No	Safari iOS Yes	Samsung Internet Android 10.0
setCodecPreferences()	Chrome 不支持 No	Edge 不支持 No	Firefox 不支持 No	IE 不支持 No	Opera 不支持 No	Safari ?	WebView Android 不支持 No	Chrome Android 不支持 No	Firefox Android 不支持 No	Opera Android 不支持 No	Safari iOS ?	Samsung Internet Android 不支持 No
stop()	Chrome 不支持 No	Edge 不支持 No	Firefox 59	IE 不支持 No	Opera 不支持 No	Safari Yes	WebView Android 不支持 No	Chrome Android 不支持 No	Firefox Android 59	Opera Android 不支持 No	Safari iOS Yes	Samsung Internet Android 不支持 No
stopped 弃用	Chrome 69	Edge 不支持 No	Firefox 59	IE 不支持 No	Opera 不支持 No	Safari Yes	WebView Android 69	Chrome Android 69	Firefox Android 59	Opera Android 不支持 No	Safari iOS Yes	Samsung Internet Android 10.0

图例

完整支持

完整支持

不支持

不支持

兼容性未知 ?

兼容性未知

弃用。不要用于新网站。

弃用。不要用于新网站。

另请参阅

• WebRTC API
• Introduction to the Real-time Transport Protocol (RTP)
• RTCPeerConnection.addTrack() and RTCPeerConnection.addTransceiver() both create transceivers
• RTCRtpReceiver and RTCRtpSender

元数据

• 最后修改： Aug 29, 2020

相关话题

1. WebRTC API
2. RTCRtpTransceiver
3. 特性

   1. currentDirection
   2. direction
   3. mid
   4. receiver
   5. sender
   6. stopped
4. 方法

   1. setCodecPreferences()
   2. stop()
5. Related pages for WebRTC

   1. MediaDevices.getUserMedia()
   2. Navigator.mediaDevices
   3. RTCCertificate
   4. RTCDTMFSender
   5. RTCDTMFToneChangeEvent
   6. RTCDataChannel
   7. RTCDataChannelEvent
   8. RTCDtlsTransport
   9. RTCErrorEvent
   10. RTCIceCandidate
   11. RTCIceTransport
   12. RTCPeerConnection
   13. RTCPeerConnectionIceErrorEvent
   14. RTCPeerConnectionIceEvent
   15. RTCRtpReceiver
   16. RTCRtpSender
   17. RTCSctpTransport
   18. RTCSessionDescription
   19. RTCStatsReport
   20. RTCTrackEvent