AudioData.copyTo()

The copyTo() method of the AudioData interface copies a plane of an AudioData object to a destination buffer.

Syntax

AudioData.copyTo(destination, options)

Parameters

destination

The buffer to copy the plane to.

options

An object containing the following:

planeIndex

The index of the plane to copy from.

frameOffsetOptional

An integer giving an offset into the plane data indicating which plane to begin copying from. Defaults to 0.

frameCountOptional

An integer giving the number of frames to copy. If omitted then all frames in the plane will be copied, beginning with the frame specified in frameOffset.

Return Value

Undefined.

Exceptions

DOMException InvalidStateError

Thrown if the AudioData object has been transferred.

DOMException RangeError

Thrown if the length of the sample is longer than the destination length.

DOMException RangeError

Thrown if the format of the AudioData object describes a planar format, but options.planeIndex is outside of the number of planes available.

DOMException RangeError

Thrown if the format of the AudioData object describes an interleaved format, but options.planeIndex is greater than 0.

Examples

The following example copies the plane at index 1 to a destination buffer.

AudioData.copyTo(AudioBuffer, {planeIndex: 1});

Specifications

Specification
WebCodecs
# dom-audiodata-copyto

Browser compatibility

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