The read-only RTCRtpTransceiver property currentDirection is a string which indicates the current directionality of the transceiver. Its value is one of the strings defined by the RTCRtpTransceiverDirection enumeration.
You can examine and set the transceiver's preferred directionality using direction property.
Syntax
var direction = RTCRtpTransceiver.currentDirection
Value
A DOMString whose value is one of the strings which are a member of the RTCRtpTransceiverDirection enumerated type.
The RTCRtpTransceiverDirection type is an enumeration of string values. Each describes how the transceiver's associated RTCRtpSender and RTCRtpReceiver behave as shown in the table below.
| Value | RTCRtpSender behavior |
RTCRtpReceiver behavior |
|---|---|---|
"sendrecv" |
Offers to send RTP data, and will do so if the other peer accepts the connection and at least one of the sender's encodings is active1. | Offers to receive RTP data, and does so if the other peer accepts. |
"sendonly" |
Offers to send RTP data, and will do so if the other peer accepts the connection and at least one of the sender's encodings is active1. | Does not offer to receive RTP data and will not do so. |
"recvonly" |
Does not offer to send RTP data, and will not do so. | Offers to receive RTP data, and will do so if the other peer offers. |
"inactive" |
Does not offer to send RTP data, and will not do so. | Does not offer to receive RTP data and will not do so. |
[1] To determine if a sender has at least one active encoding, the user agent gets its parameters using RTCRtpSender.getParameters(), then looks at the parameters' encodings property; if any of the listed encodings has its active property set to true, the sender has an active encoding.
Specifications
| Specification | Status | Comment |
|---|---|---|
| WebRTC 1.0: Real-time Communication Between Browsers The definition of 'RTCRtpTransceiver.currentDirection' in that specification. |
Candidate Recommendation |
Browser compatibility
| Desktop | Mobile | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic support | Chrome No support No | Edge ? | Firefox Full support 59 | IE No support No | Opera No support No | Safari ? | WebView Android No support No | Chrome Android No support No | Edge Mobile ? | Firefox Android Full support 59 | Opera Android No support No | Safari iOS ? | Samsung Internet Android No support No |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown