SourceBuffer.removeAsync()

The removeAsync() method of the SourceBuffer interface starts the process of asynchronously removing from the SourceBuffer media segments found within a specific time range. A Promise is returned, which is fulfilled when the buffers in the specified time range have been removed.

This method can only be called when updating is false. If that's not the case, call abort() instead.

Syntax

removePromise = sourceBuffer.removeAsync(start, end);

Parameters

start

A double representing the start of the time range, in seconds.

end

A double representing the end of the time range, in seconds.

Return value

A Promise whose fulfillment handler is executed once the buffers in the specified time range have been removed from the SourceBuffer.

Example

This example establishes an asynchronous function, emptySourceBuffer(), which simply clears the contents of the specified SourceBuffer.

async function emptySourceBuffer(msBuffer) {
  await msBuffer.removeAsync(0, Infinity).catch(function(e) {
    handleException(e);
  }
}

Specifications

Not currently part of the MSE specification.

Browser compatibility

See also

• Media Source Extensions API
• SourceBuffer.remove()
• MediaSource
• SourceBufferList