Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

Non-standard: This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

The appendStream() method of the SourceBuffer interface appends media segment data from a ReadableStream object to the SourceBuffer.


appendStream(stream, maxSize)



The ReadableStream that is the source of the media segment data you want to append to the SourceBuffer.


An unsigned long value indicating the maximum number of bytes that can be appended in this operation.

Return value

None (undefined).





Browser compatibility

BCD tables only load in the browser

See also