GlobalEventHandlers.onloadedmetadata - Web APIs
the onloadedmetadata property of the globaleventhandlers mixin is the eventhandler for processing loadedmetadata events. the loadedmetadata event is fired when the metadata has been loaded. syntax element.onloadedmetadata = handlerfunction; var handlerfunction = element.onloadedmetadata; handlerfunction should be either null or a javascript function specifying the handler for the event. specification specification status comment html living standardthe definition of 'onloadedmetadata' in that specification. living standard ...

HTMLMediaElement: loadedmetadata event - Web APIs
mozsamplerate read only int the sample rate per second. ...
...examples add an event listener for the htmlmediaelement's loadedmetadata event, then post a message when that event handler has reacted to the event firing. using addeventlistener(): const video = document.queryselector('video'); video.addeventlistener('loadedmetadata', (event) => { console.log('the duration and dimensions ' + ' of the media and tracks are now known. '); }); using the onloadedmetadata event handler property: const video = document.queryselector('video'); video.onloadedmetadata = (event) => { console.log('the duration and dimensions ' + ' of the media and tracks are now known. '); }; specifications specification status html living standardthe definition of 'loadedmetadata media event' in that specification. living standard html5the d...

MediaDevices.getUserMedia() - Web APIs
le gives a preference for camera resolution, and assigns the resulting mediastream object to a video element. // prefer camera resolution nearest to 1280x720. var constraints = { audio: true, video: { width: 1280, height: 720 } }; navigator.mediadevices.getusermedia(constraints) .then(function(mediastream) { var video = document.queryselector('video'); video.srcobject = mediastream; video.onloadedmetadata = function(e) { video.play(); }; }) .catch(function(err) { console.log(err.name + ": " + err.message); }); // always check for errors at the end. using the new api in older browsers here's an example of using navigator.mediadevices.getusermedia(), with a polyfill to cope with older browsers. note that this polyfill does not correct for legacy differences in constraints syntax, which mean...
...ject); }); } } navigator.mediadevices.getusermedia({ audio: true, video: true }) .then(function(stream) { var video = document.queryselector('video'); // older browsers may not have srcobject if ("srcobject" in video) { video.srcobject = stream; } else { // avoid using this in new browsers, as it is going away. video.src = window.url.createobjecturl(stream); } video.onloadedmetadata = function(e) { video.play(); }; }) .catch(function(err) { console.log(err.name + ": " + err.message); }); frame rate lower frame-rates may be desirable in some cases, like webrtc transmissions with bandwidth restrictions. var constraints = { video: { framerate: { ideal: 10, max: 15 } } }; front and back camera on mobile phones. var front = false; document.getelementbyid('flip-but...

Capabilities, constraints, and settings - Web APIs
it calls navigator.mediadevices.getusermedia(), passing in the constraints objects for the video and audio tracks. this returns a mediastream wi...
... the audio and video from a source matching the inputs (typically a webcam, although if you provide the right constraints you can get media from other sources). when the stream is obtained, it's attached to the <video> element so that it's visible on screen, and we grab the audio track and video track into the variables audiotrack and videotrack. then we set up a promise which resolves when the onloadedmetadata event occurs on the video element. when that happens, we know the video has started playing, so we call our getcurrentsettings() function (described above) to display the actual settings that the browser decided upon after considering our constraints and the capabilities of the hardware. if an error occurs, we log it using the handleerror() method that we'll look at farther down in this article...

Navigator.getUserMedia() - Web APIs
s invoked when the request for media access is approved. the function is called with one parameter: the mediastream object that contains the media stream. your callback can then assign the stream to the desired object (such as an <audio> or <video> element), as shown in the following example: function(stream) { var video = document.queryselector('video'); video.srcobject = stream; video.onloadedmetadata = function(e) { // do something with the video here. }; } errorcallback when the call fails, the function specified in the errorcallback is invokedwith a mediastreamerror object as its sole argument; this object is is modeled on domexception. see {anch("errors")}} below for a list of the errors which can occur. return value undefined. errors examples width and height here's ...
...navigator.getusermedia = navigator.getusermedia || navigator.webkitgetusermedia || navigator.mozgetusermedia; if (navigator.getusermedia) { navigator.getusermedia({ audio: true, video: { width: 1280, height: 720 } }, function(stream) { var video = document.queryselector('video'); video.srcobject = stream; video.onloadedmetadata = function(e) { video.play(); }; }, function(err) { console.log("the following error occurred: " + err.name); } ); } else { console.log("getusermedia not supported"); } ...

AudioContext.createMediaStreamSource() - Web APIs
t'); var range = document.queryselector('input'); // getusermedia block - grab stream // put it into a mediastreamaudiosourcenode // also output the visuals into a video element if (navigator.mediadevices) { console.log('getusermedia supported.'); navigator.mediadevices.getusermedia ({audio: true, video: true}) .then(function(stream) { video.srcobject = stream; video.onloadedmetadata = function(e) { video.play(); video.muted = true; }; // create a mediastreamaudiosourcenode // feed the htmlmediaelement into it var audioctx = new audiocontext(); var source = audioctx.createmediastreamsource(stream); // create a biquadfilter var biquadfilter = audioctx.createbiquadfilter(); biquadfilter.ty...

AudioContext.createMediaStreamTrackSource() - Web APIs
createbiquadfilter(), and it's configured as desired to perform a lowshelf filter on the audio coming from the source. the output from the microphone is then routed into the new biquad filter, and the filter's output is in turn routed to the audio context's destination. ...

Document - Web APIs
press event is raised. globaleventhandlers.onkeyup is an eventhandler representing the code to be called when the keyup event is raised. globaleventhandlers.onload is an eventhandler representing the code to be called when the load event is raised. globaleventhandlers.onloadeddata is an eventhandler representing the code to be called when the loadeddata event is raised. globaleventhandlers.onloadedmetadata is an eventhandler representing the code to be called when the loadedmetadata event is raised. globaleventhandlers.onloadend is an eventhandler representing the code to be called when the loadend event is raised (when progress has stopped on the loading of a resource.) globaleventhandlers.onloadstart is an eventhandler representing the code to be called when the loadstart event is raised (wh...

GlobalEventHandlers - Web APIs
press event is raised. globaleventhandlers.onkeyup is an eventhandler representing the code to be called when the keyup event is raised. globaleventhandlers.onload is an eventhandler representing the code to be called when the load event is raised. globaleventhandlers.onloadeddata is an eventhandler representing the code to be called when the loadeddata event is raised. globaleventhandlers.onloadedmetadata is an eventhandler representing the code to be called when the loadedmetadata event is raised. globaleventhandlers.onloadend is an eventhandler representing the code to be called when the loadend event is raised (when progress has stopped on the loading of a resource.) globaleventhandlers.onloadstart is an eventhandler representing the code to be called when the loadstart event is raised (wh...

Index - Web APIs
ty of the globaleventhandlers mixin is an eventhandler that processes load events on a window, xmlhttprequest, <img> element, etc. 1512 globaleventhandlers.onloadeddata api, event handler, globaleventhandlers, property, reference the onloadeddata property of the globaleventhandlers mixin is the eventhandler for processing loadeddata events. 1513 globaleventhandlers.onloadedmetadata api, event handler, globaleventhandlers, property, reference the onloadedmetadata property of the globaleventhandlers mixin is the eventhandler for processing loadedmetadata events. 1514 globaleventhandlers.onloadend api, dom, event handler, globaleventhandlers, property, reference, web, events, onloadend the onloadend property of the globaleventhandlers mixin is an...

MediaStreamAudioSourceNode - Web APIs
t'); var range = document.queryselector('input'); // getusermedia block - grab stream // put it into a mediastreamaudiosourcenode // also output the visuals into a video element if (navigator.mediadevices) { console.log('getusermedia supported.'); navigator.mediadevices.getusermedia ({audio: true, video: true}) .then(function(stream) { video.srcobject = stream; video.onloadedmetadata = function(e) { video.play(); video.muted = true; }; // create a mediastreamaudiosourcenode // feed the htmlmediaelement into it var audioctx = new audiocontext(); var source = audioctx.createmediastreamsource(stream); // create a biquadfilter var biquadfilter = audioctx.createbiquadfilter(); biquadfilter.ty...

MediaStreamTrackAudioSourceNode - Web APIs
t'); var range = document.queryselector('input'); // getusermedia block - grab stream // put it into a mediastreamaudiosourcenode // also output the visuals into a video element if (navigator.mediadevices) { console.log('getusermedia supported.'); navigator.mediadevices.getusermedia ({audio: true, video: true}) .then(function(stream) { video.srcobject = stream; video.onloadedmetadata = function(e) { video.play(); video.muted = true; }; // create a mediastreamaudiosourcenode // feed the htmlmediaelement into it var audioctx = new audiocontext(); var source = audioctx.createmediastreamsource(stream); // create a biquadfilter var biquadfilter = audioctx.createbiquadfilter(); biquadfilter.ty...

Global attributes - HTML: Hypertext Markup Language
list of global attributes accesskey provides a hint for genera...

SVG Event Attributes - SVG: Scalable Vector Graphics
ad document element event attributes oncopy, oncut, onpaste global event attributes oncancel, oncanplay, oncanplaythrough, onchange, onclick, onclose, oncuechange, ondblclick, ondrag, ondragend, ondragenter, ondragexit, ondragleave, ondragover, ondragstart, ondrop, ondurationchange, onemptied, onended, onerror, onfocus, oninput, oninvalid, onkeydown, onkeypress, onkeyup, onload, onloadeddata, onloadedmetadata, onloadstart, onmousedown, onmouseenter, onmouseleave, onmousemove, onmouseout, onmouseover, onmouseup, onmousewheel, onpause, onplay, onplaying, onprogress, onratechange, onreset, onresize, onscroll, onseeked, onseeking, onselect, onshow, onstalled, onsubmit, onsuspend, ontimeupdate, ontoggle, onvolumechange, onwaiting graphical event attributes onactivate, onfocusin, onfocusout ...

SVG Attribute reference - SVG: Scalable Vector Graphics
nt attributes onabort, onerror, onresize, onscroll, onunload global event attributes oncancel, oncanplay, oncanplaythrough, onchange, onclick, onclose, oncuechange, ondblclick, ondrag, ondragend, ondragenter, ondragexit, ondragleave, ondragover, ondragstart, ondrop, ondurationchange, onemptied, onended, onerror, onfocus, oninput, oninvalid, onkeydown, onkeypress, onkeyup, onload, onloadeddata, onloadedmetadata, onloadstart, onmousedown, onmouseenter, onmouseleave, onmousemove, onmouseout, onmouseover, onmouseup, onmousewheel, onpause, onplay, onplaying, onprogress, onratechange, onreset, onresize, onscroll, onseeked, onseeking, onselect, onshow, onstalled, onsubmit, onsuspend, ontimeupdate, ontoggle, onvolumechange, onwaiting graphical event attributes onactivate, onfocusin, onfocusout ...