Advanced Metadata (Exif, GPS, IPTC, etc.)

[DJMaze]

(Devs are already informed earlier)
Currently I'm researching Jpeg Metadata for a complete new metadata reader.
Because Exifer (and the other PHP lib PHP JPEG Metadata Toolkit) are old and unmaintained.

Due to that i discovered that Exifer, and even PHP Exif extension, have serious issues with array data.

For example a newer Canon model (EOS/1D maybe?) which has several MakerNote fields that contain a large array with integers.
For example the ColorBalance1 tag contains 692 integers in a EOS 40D MakerNote.
In total the EOS 40D contains 16 arrays from 3 up till 692 entries inside an array!

Or what about the latest and greatest Sony A700?

So you could experience Exifer crashing on that.

However, i wonder how useful some metadata extraction is for people.
Therefore here's a list of options and you decide "which" features you request to be implemented.

Note:
1) Marked as bold is already getting implemented.
2) Strike through will be abandoned

• APP0 => JFIF information http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/JFIF.html
• APP1 => Exif (including GPS and MakerNotes)
• APP1 => XMP data http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/XMP.html
• APP2 => ICC_Profile http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/ICC_Profile.html
• APP3 => Kodak Meta
• APP5 => Ricoh Meta
• APP6 => Jpeg EPPIM
• APP8 => Jpeg SPIFF
• APP10 => PhotoStudio Unicode comment
• APP12 => PictureInfo/Ducky http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/APP12.html
• APP13 => Photoshop data (formerly IPTC)
• APP14 => Adobe DNG
• APP15 => GraphicConverter
• COM => Comment

Althought IPTC is phasing out, you might still use it?

[Joachim Müller]

Professional photographers love IPTC, but it has got a serious drawback: lacking unicode support.

[tassu]

Time has gone. Is there any development about this?

[tassu]

Professional photographers love IPTC, but it has got a serious drawback: lacking unicode support.

I live in Finland, and we have these ä and ö letters. I`ve been facing a lot of problems with those letters when exporting from Lightroom. With several gallery softwares.

BUT, same letters are ok in Facebook? How they have solved it.

[Αndré]

same letters are ok in Facebook? How they have solved it.

I guess they convert it to unicode if it isn't already unicode, but that's just an assumption.