WEBRTC Learning--mediastream and Mediastreamtrack

This was an experimental technology
Because This technology ' s specification have not stabilized, check the compatibility table for the proper prefixes to use I n various browsers. Also Note the syntax and behavior of an experimental technology are subject to change in future versions of browsers a s the spec changes.

MediaStream The interface represents a stream of media content. A Stream consists of several tracks, like video or audio tracks.

Attributes

MediaStream.ended Read only

is a Boolean value with a value true ended of If the event have been fired on the object, meaning the St Ream has been completely read, or false if the end of the hte stream have not been reached.

MediaStream.id Read only

Is

a DOMString containing-characters denoting a unique identifier (GUID) for the object.

Event handlers

MediaStream.onaddtrack

Was a EventHandler containing the action to perform if an addtrack event was fired on the object, that's when a new MediaStreamTrack Object is added.

MediaStream.onended

is a EventHandler containing the action to perform if an ended event was fired on the object, that's when the streaming I s terminating.

MediaStream.onremovetrack

was a EventHandler containing the action to perform if an removetrack event was fired on the object, that's when a MediaStreamTrackobject is removed from it.

Methods

MediaStream.addTrack()

Stores A copy of the MediaStreamTrack given as argument. If the track had already been added MediaStream to the object and nothing happens; finished S has already reached it end, the exception is INVALID_STATE_RAISE raised.

MediaStream.clone()

Return A clone of the MediaStream objet. The clone would have a new ID value.

Returns The track whose ID corresponds to the one given in parameters, trackid . If no parameter is given, or if no track with that ID does exists, it returns null . If several tracks has the same ID, it returns the first one.

MediaStream.getAudioTracks()

Returns A list of the stored in the object that has MediaStreamTrack MediaStream their kind attribute set to "audio" . The order is not a defined, and may vary from one browser to a and the also from one of the method to another.

MediaStream.getTrackById()

Returns the track whose ID corresponds to the one given in parameters, trackid . If no parameter is given, or if no track with that ID does exists, it returns null . If several tracks has the same ID, it returns the first one.

MediaStream.getVideoTracks()

Returns A list of the stored in the object that has MediaStreamTrack MediaStream their kind attribute set to "video" . The order is not a defined, and may vary from one browser to a and the also from one of the method to another.

MediaStream.removeTrack()

removes the MediaStreamTrack given as argument. If the track was not part MediaStream of the of the object, nothing happens; finished Eady reached its end, the exception is INVALID_STATE_RAISE raised.

Mediastreamtracksummary

MediaStream The interface represents a stream of media content. A Stream consists of several tracks, like video or audio tracks.

Properties

MediaStreamTrack.enabled

is a Boolean value with a value true of if the track was enabled, that's allowed to render the media source Strea M Or false if it is disabled, which is not rendering the media source stream but silence and blackness. If the track had been disconnected, this value can be changed but have no more effect.

MediaStreamTrack.id Read only

Returns A DOMString containing a unique identifier (GUID)

for the track; it's generated by the browser.

MediaStreamTrack.kind Read only

Returns a DOMString set "audio" to if the track was an audio track "video" and to, if it was a video track. It doesn ' t change if the track was deassociated from its source.

MediaStreamTrack.label Read only

Returns A DOMString containing a user agent-assigned label that identifies the track source, as in "internal microphone" . The string may be left empty and was empty as long as no source has been connected. When the track was deassociated from its source, the label was not changed.

MediaStreamTrack.muted Read only

Returns a Boolean value with a value true of if the track is muted, false otherwise.

MediaStreamTrack.readonly Read only

Returns a Boolean value with a value of an if the track was true readonly (such a video file source or a camera that Settings can ' t be modified), false otherwise.

MediaStreamTrack.readyState Read only

Returns An enumerated value giving the status of the. It takes one of the following values:

• "live"Which indicates that a input is connected and does it best-effort in providing real-time data. In this case, the output of data can is switched on or off using the MediaStreamTrack.enabled attribute.
• "ended"Which indicates that the input was not giving any more data and would never provide new data.

MediaStreamTrack.remote Read only

Returns A Boolean value with a value true of if the track was sourced by a RTCPeerConnection , false otherwise.

Event handlers

MediaStreamTrack.onstarted

is a EventHandler containing the action to perform if an started event was fired on the object, that's when a new object is added.

MediaStreamTrack.onmute

is a EventHandler containing the action to perform if an mute event was fired on the object, that's when the Stre Aming is terminating.

MediaStreamTrack.onunmute

was a EventHandler containing the action to perform if an unmute event was fired on the object, that's when a MediaStreamTrack object is removed from it.

MediaStreamTrack.onoverconstrained

was a EventHandler containing the action to perform if an overconstrained event was fired on the object, that's when a MediaStreamTrack object is removed from it.

MediaStreamTrack.oneended

is a EventHandler containing the action to perform if an ended event was fired on the object, that's when a object is removed from it.

Methods

MediaStreamTrack.getConstraints()

MediaStreamTrack.applyConstraints()

MediaStreamTrack.getSettings()

MediaStreamTrack.getCapabilities()

MediaStreamTrack.clone()

MediaStreamTrack.stop()

Stops playing the source associated to the track, both the source and the track is deassociated. The track was set to ended .

Specifications

Specification	Status	Comment
Media Capture and Streams The definition of ' mediastreamtrack ' in that specification.	Candidate Recommendation	Initial definition

Https://developer.mozilla.org/en-US/docs/Web/API/MediaStreamTrack

Https://developer.mozilla.org/en-US/docs/Web/API/MediaStream

WEBRTC Learning--mediastream and Mediastreamtrack