From my understanding, libjpeg is a library used to compress the image data. I should be able to write the marker metadata without calling jpeg_start_compress() function.
I have 2 questions:
- Why doesn't libjpeg allow that?
- If I have a source jpeg file (which is already compressed), how can I just modify the metadata details? Is there any flag which I can set to notify the library that we are dealing with compressed images and we just need to modify the metadata details?
Please help.
