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• 句法
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

pliCount 特性为 RTCInboundRtpStreamStats dictionary states the number of times the RTCRtpReceiver described by these statistics sent a Picture Loss Indication ( PLI ) packet to the sender. A PLI packet indicates that some amount of encoded video data has been lost for one or more frames.

句法

var pliCount = RTCInboundRtpStreamStats.pliCount;
					

值

An integer value indicating the number of times a PLI packet was sent by the RTCRtpReceiver to the sender. These are sent by the receiver's decoder to notify the encoder (the sender) that an undefined amount of coded video data, which may span frame boundaries, has been lost. This information is only available for video streams.

This may trigger the sender to send a full frame in order to allow the receiver to re-synchronize, since lost data may be an irrecoverable situation for decoding media. However, the primary purpose of this message is to allow the sender to consider techniques to mitigate network performance issues. This is often achieved by methods such as increasing the compression, lowering resolution, or finding other ways to reduce the bit rate of the stream.

规范

规范	状态	注释
Identifiers for WebRTC's Statistics API The definition of 'RTCInboundRtpStreamStats.pliCount' in that specification.	候选推荐	初始定义。

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.

No compatibility data found. Please contribute data for "api.RTCInboundRtpStreamStats.pliCount" (depth: 1) to the MDN 兼容性数据存储库 .

另请参阅

• RFC 4585: 6.3.1 : Definition of "PLI messages" in the document Extended RTP Profile for Real-time Transport Control Protocol (RTCP)-Based Feedback (RTP/AVPF) .

元数据

• 最后修改： Apr 11, 2019

相关话题

1. WebRTC API
2. RTCInboundRtpStreamStats
3. 特性

   1. averageRtcpInterval
   2. bytesReceived
   3. fecPacketsDiscarded
   4. firCount
   5. framesDecoded
   6. lastPacketReceivedTimestamp
   7. nackCount
   8. packetsDuplicated
   9. packetsFailedDecryption
   10. perDscpPacketsReceived
   11. pliCount
   12. qpSum
   13. receiverId
   14. remoteId
   15. sliCount
   16. trackId
4. 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. RTCRtpTransceiver
   18. RTCSctpTransport
   19. RTCSessionDescription
   20. RTCStatsEvent
   21. RTCStatsReport
   22. RTCTrackEvent