[File] Magic for JPEG XL (*.jxl) files

[Christos Zoulas]

Added, thanks!

christos

> On Feb 22, 2021, at 2:40 AM, Ian Tester <imroykun at gmail.com> wrote:
> 
> The format uses Protocol Buffers to store the headers. So nothing more can be parsed with magic/file?
> 
> 
> 
> diff --git magic/Magdir/jpeg magic/Magdir/jpeg
> index 52c9ad3..4409c1e 100644
> --- magic/Magdir/jpeg
> +++ magic/Magdir/jpeg
> @@ -124,3 +124,14 @@
>  >>4    lelong%2        0       JPEG-XR
>  !:mime image/jxr
>  !:ext  jxr
> +
> +# JPEG XL
> +0      string          \xff\x0a        JPEG XL codestream
> +!:mime  image/jxl
> +!:ext jxl
> +
> +# JPEG XL (transcoded JPEG file)
> +0      string          \x00\x00\x00\x0cJXL\x20\x0d\x0a\x87\x0a         JPEG XL container
> +!:mime  image/jxl
> +!:ext jxl
> 
> 
> 
> 
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