The MediaRecorder.onstart
event handler (part of the MediaRecorder API) handles the
start
event, allowing you to run code in response to media recording being
started by a MediaRecorder
.
The start
event is thrown as a result of the
MediaRecorder.start()
method being invoked. At this point, the data
starts being gathered into a Blob
.
Syntax
MediaRecorder.onstart = function(event) { ... }
MediaRecorder.addEventListener('start', function(event) { ... })
Example
...
record.onclick = function() {
mediaRecorder.start();
console.log("recorder started");
}
mediaRecorder.onstart = function() {
// do something in response to
// recording being started
}
...
Properties
None.
Specifications
Specification | Status | Comment |
---|---|---|
MediaStream Recording The definition of 'MediaRecorder.onstart' in that specification. |
Working Draft | Initial definition |
Browser compatibility
BCD tables only load in the browser
See also
- Using the MediaRecorder API
- Web Dictaphone: MediaRecorder + getUserMedia + Web Audio API visualization demo, by Chris Mills (source on Github.)
- simpl.info MediaStream Recording demo, by Sam Dutton.
Navigator.getUserMedia