The read-only source property of the RTCRtpContributingSource interface returns the source identifier of a particular stream of RTP packets. The value is the contributing source (CSRC) or synchronization source (SSRC) identifier, depending on whether the object is an RTCRtpContributingSource or RTCRtpSynchronizationSource, which is based on the former.
Syntax
var sourceID = RTCRtpContributingSource.source
Value
An unsigned, 32-bit integer value which uniquely identifies the source of RTP packets described by this RTCRtpContributingSource (in which case the value is a CSRC identifier) or RTCRtpSynchronizationSource (the value is an SSRC identifier).
Specifications
| Specification | Status | Comment |
|---|---|---|
| WebRTC 1.0: Real-time Communication Between Browsers The definition of 'source' in that specification. |
Candidate Recommendation | Initial definition. |
Browser Compatibility
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.
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| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
source | Chrome Full support 59 | Edge Full support ≤79 | Firefox
Full support
59
| IE No support No | Opera No support No | Safari ? | WebView Android Full support 59 | Chrome Android Full support 59 | Firefox Android
Full support
59
| Opera Android No support No | Safari iOS ? | Samsung Internet Android Full support 7.0 |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown
- User must explicitly enable this feature.
- User must explicitly enable this feature.