Support for streaming RAW images

[peacechen]

Question about an existing feature

RAW images take up a lot of memory. Is there a way to stream RAW to reduce memory requirements?

What are you trying to achieve?

Stream RAW input to reduce memory requirements.

When you searched for similar issues, what did you find that might be related?

#220

Please provide a minimal, standalone code sample, without other dependencies, that demonstrates this question

Example from https://sharp.pixelplumbing.com/api-constructor has the entire image in memory instead of streaming.

// Read a raw array of pixels and save it to a png
const input = Uint8Array.from([255, 255, 255, 0, 0, 0]); // or Uint8ClampedArray
const image = sharp(input, {
  // because the input does not contain its dimensions or how many channels it has
  // we need to specify it in the constructor options
  raw: {
    width: 2,
    height: 1,
    channels: 3
  }
});
await image.toFile('my-two-pixels.png');

Please provide sample image(s) that help explain this question

N/A

[lovell]

No, sorry, this is something that would probably be part of the future possible enhancement detailed at #179

[lovell]

Let's continue to track this at #179