always getting "Malformed data passed to binarizer."

See original GitHub issue

Hi I am always getting the same malformed data error. Even when I simply create an Uint8Array filled with RGBA values I get the same error. like this: pixelBuffer = new Uint8Array(textureSize * textureSize * 4);

I have tried using Uint8ClampedArray with the same result. What am I doing wrong here?

I made a fiddle here with my project that throws the error. The error is thrown when you click on the screen.

To give you some background info on the fiddle, I am using the 3D graphics library Three.js to scan QR within the 3d environment (will be used for augmented reality). In the scene, the camera is being rendered out to a DataTexture like in this example. The idea is to use the Uint8Array texture data to give to jsQR.

Thanks

Issue Analytics

State:
Created 5 years ago
Comments:11

Top GitHub Comments

6reactions

vladikoffcommented, May 29, 2019

I had to change to the following new Uint8ClampedArray(png.toRGBA8(data)[0]) after decoding the png buffer, then it worked. Example:

    const data = png.decode(buffer);
    const out = {
      data: new Uint8ClampedArray(png.toRGBA8(data)[0]),
      height: data.height,
      width: data.width,
    };

    const code = jsQR(out.data, out.width, out.height);

6reactions

billykatzcommented, Dec 25, 2018

@erikparr, hey did you figure out what was wrong? Im getting a similar error

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