mj2_video_source::open_image

Overrides kdu_compressed_video_source::open_image

See kdu_compressed_video_source::open_image for details. Note, however, that an error message will be generated (through kdu_error) if you attempt to open more than one image simultaneously from the same Motion JPEG2000 source. This means that only one track can have an open image at any given time.