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Add image encoder / decoder to proposed solutions section. #6

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Add image encoder / decoder to proposed solutions section. #6

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12 changes: 8 additions & 4 deletions explainer.md
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Expand Up @@ -62,20 +62,24 @@ We build on top of [WHATWG Streams](https://streams.spec.whatwg.org/) (in partic

An **AudioTrackReader** converts a MediaStreamTrack into a ReadableStream of DecodedAudioPacket.

An **AudioEncoder** is a TransformStream from DecodeAudioPacket to EncodedAudioPacket.
An **AudioEncoder** is a TransformStream from DecodedAudioPacket to EncodedAudioPacket.

An **AudioDecoder** is a TransformStream from EncodedAudioPacket to DecodedAudioPacket.

An **AudioTrackWriter** converts a WritableStream of DecodedAudioPacket into a MediaStreamTrack.

A **VideoTrackReader** converts a MediaStreamTrack into a ReadableStream of DecodedVideoFrame.

A **VideoEncoder** is a TransformStream from DecodeVideoFrame to EncodedVideoFrame.
A **VideoEncoder** is a TransformStream from DecodedVideoFrame to EncodedVideoFrame.

A **VideoDecoder** is a TransformStream from EncodedVideoFrame to DecodedVideoFrame.

A **VideoTrackWriter** converts a WritableStream of DecodedVideoFrame into a MediaStreamTrack.

An **ImageEncoder** encodes a single image from [ImageData](http://developer.mozilla.org/en-US/docs/Web/API/ImageData) to EncodedImageData.

An **ImageDecoder** decodes a single image from EncodedImageData to [ImageData](http://developer.mozilla.org/en-US/docs/Web/API/ImageData).

## Examples
### Example of decode for low-latency live streaming or cloud gaming

Expand Down Expand Up @@ -267,8 +271,8 @@ videoElem.srcObject = mediaStream;
const input = ...; // Reads container from source (like a file)
const output = ...; // Writes container to source (like a file)

const imageDecoder = new imageDecoder({codec: "png"});
const imageEncoder = new imageEncoder({codec: "jpeg"});
const imageDecoder = new ImageDecoder({codec: "png"});
const imageEncoder = new ImageEncoder({codec: "jpeg"});

const decoded = await imageDecoder.decode(input);
const encoded = await imageEncoder.encode(decoded);
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