Read EXIF data without loading whole file? about go-exif HOT 4 CLOSED

Merry Christmas.

I'm assuming that you're referring to one of these functions, which also have explanatory comments:

• SearchFileAndExtractExif
• SearchAndExtractExif

These are just convenience functions. In order to efficiently parse, you need to provide the EXIF data directly. The other projects (go-jpeg-image-structure, go-png-image-structure), which knows how to parse the specific image formats, to do this for you.

What specific video format are you dealing with? No popular video format supports EXIF.

from go-exif.

Thanks for that tip -- I will look into those packages!

I'm dealing with really any kind of video format (could be in a Google Photos collection, for example) -- mp4 is probably most common.

I'm definitely not an expert on media files or media metadata but am learning quite a lot. I guess if they don't use EXIF I can hunt down another way to get their metadata. :)

Thanks for this package!

from go-exif.

For video formats, you'll likely have to use ffmpeg, gstreamer, etc.. MP4 doesn't support EXIF. Only MOV seems to support EXIF, but, even then, I don't know if it strictly conforms to the spec. It doesn't even seem to have the same, standard EXIF header (well-defined byte order bytes followed by the fixed magic bytes followed by a pointer to the first block of data).

from go-exif.

Good to know, thank you!

from go-exif.