The exif44 from garyhouston

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Example Geotag?

Would be nice to see an example of a JPEG being set with a GPS latitude/longitude information.

[Question] Help with transplanting exif.TIFF into tiff file

I feel like I'm really stumbling around in the dark with this.

I am trying to get it so that tiffbytes has valid metadata from a jpeg.

tiffbytes is the bytes for a TIFF file that has no tags, created using golang.org/x/image/tiff Encode()

Can you suggest how I would do this?

type ReadExifHandle struct{
	tiffbytes *bytes.Buffer
}

func (readexif ReadExifHandle)ReadExif(format exif44.FileFormat, imageIdx uint32, exif exif44.Exif, err error) error{
	if err != nil {
		return err
	}

	buf := readexif.tiffbytes.Bytes()
	valid, order, ifdPos := tiff66.GetHeader(buf)
	if !valid {
		fmt.Println("Not a valid tiff file wtf")
		return nil
	}
	root, err := tiff66.GetIFDTree(buf, order, ifdPos, tiff66.TIFFSpace)
	if err != nil{
		return err
	}
	exif.TIFF.Fix()
	exif.TIFF.DeleteEmptyIFDs()

	fileSize := tiff66.HeaderSize + root.TreeSize()
	out := make([]byte, fileSize)

	tiff66.PutHeader(out, order, tiff66.HeaderSize)
	next, err := root.PutIFDTree(out, tiff66.HeaderSize)
	if err != nil {
		return err
	}
	var tiffbytes bytes.Buffer
	tiffwriter := bufio.NewWriter(&tiffbytes)
	tiffwriter.Write(out[:next])
	tiffwriter.Write(buf[:])
	tiffwriter.Flush()

	return nil
}

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