MediaSource
Implements the MediaSource interface. It uses EventEmitter to emit events.
Maintains a list of SourceBuffers object and Active Source buffers.
Extends
Implements
Constructors
new MediaSource()
new MediaSource():
MediaSource
Returns
Overrides
Accessors
activeSourceBuffers
Get Signature
get activeSourceBuffers():
SourceBufferList
Gets the active source buffers of mediasource. For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-activesourcebuffers.
Returns
For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-activesourcebuffers.
Implementation of
MediaSourceInterface.activeSourceBuffers
duration
Get Signature
get duration():
number
Gets the duraton of the content. For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-duration.
Returns
number
Set Signature
set duration(
duration):void
Sets the duraton of the content. For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-duration.
Parameters
duration
number
Returns
void
For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-duration.
Implementation of
onsourceclose
Set Signature
set onsourceclose(
listener):void
For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-onsourceclose
Parameters
listener
Returns
void
For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-onsourceclose
Implementation of
MediaSourceInterface.onsourceclose
onsourceended
Set Signature
set onsourceended(
listener):void
For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-onsourceended
Parameters
listener
Returns
void
For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-onsourceended
Implementation of
MediaSourceInterface.onsourceended
onsourceopen
Set Signature
set onsourceopen(
listener):void
For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-onsourceopen
Parameters
listener
Returns
void
For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-onsourceopen
Implementation of
MediaSourceInterface.onsourceopen
readyState
Get Signature
get readyState():
ReadyState
Gets the ready state of MediaSource. For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-readystate.
Returns
For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-readystate.
Implementation of
MediaSourceInterface.readyState
sourceBuffers
Get Signature
get sourceBuffers():
SourceBufferList
Gets the source buffers added to the media source. For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-sourcebuffers.
Returns
For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-sourcebuffers.
Implementation of
MediaSourceInterface.sourceBuffers
Methods
addEventListener()
addEventListener(
type,listener,options?):void
Adds an event listener.
Parameters
type
string
The event to listen to.
listener
The Event Handler function.
options?
Ignore.
boolean |
AddEventListenerOptions |
Returns
void
Implementation of
MediaSourceInterface.addEventListener
addSourceBuffer()
addSourceBuffer(
type):SourceBuffer
Adds a SourceBuffer to the media source based on mime type. For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-addsourcebuffer.
Parameters
type
string
The mime type of data sent to source buffer.
Returns
Implementation of
MediaSourceInterface.addSourceBuffer
clearLiveSeekableRange()
clearLiveSeekableRange():
void
Clears the previously set live seek range. For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-clearliveseekablerange.
Returns
void
Implementation of
MediaSourceInterface.clearLiveSeekableRange
endOfStream()
endOfStream(
error?):void
Signals the end of stream for media source. For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-endofstream.
Parameters
error?
(optional) EndOfStreamError
Returns
void
Implementation of
MediaSourceInterface.endOfStream
getMaxSupportedResolution()
getMaxSupportedResolution(
mimestr):Resolution
Get max supported resolution based on the decoder profile.
Parameters
mimestr
string
Returns
Resolution
removeEventListener()
removeEventListener(
type,listener,options?):void
Removes an event listener.
Parameters
type
string
The event to listen to.
listener
The Event Handler function to be removed.
options?
Ignore.
boolean |
EventListenerOptions |
Returns
void
Implementation of
MediaSourceInterface.removeEventListener
removeSourceBuffer()
removeSourceBuffer(
sourceBuffer):void
Removes the source buffer from media source. For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-removesourcebuffer.
Parameters
sourceBuffer
source buffer instance to be removed.
Returns
void
Implementation of
MediaSourceInterface.removeSourceBuffer
setLiveSeekableRange()
setLiveSeekableRange(
start,end):void
Sets the start and end seek range for live. For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-setliveseekablerange.
Parameters
start
number
Start position of the seek range of a live content in seconds.
end
number
End position of the seek range of a live content in seconds.
Returns
void
Implementation of
MediaSourceInterface.setLiveSeekableRange
isTypeSupported()
staticisTypeSupported(type):boolean
Checks whehter the mime type is supported by the Media source. For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-istypesupported.
Parameters
type
string
mime type.
Returns
boolean
Last updated: Sep 30, 2025
