There are already a couple of threads in this forum that discuss the limitations and complexities of combining multiple ADV212 component-tile codestreams into a single larger JPEG 2000 image. Here is one such example:
The thread also mentions using tile offsets to perform merging of multiple component-tile codestreams with other JPEG2000 codec implementations, but the ADV212 does not support this feature.
Would it be possible to add this feature? This feature would be a great addition to the ADV212 product and remove a lot of limitations in combining multiple ADV212 outputs into a single compliant image.