The embodiments relate to apparatuses and methods for subpicture encoding. According to an embodiment a method for a sender apparatus comprises receiving (901) image data; partitioning (902) the image data into subpictures; generating (903) a transmission packet comprising said subpictures and a packet header; inserting (904) into the transmission packet a subpicture header comprising information regarding the subpictures; and transmitting (905) the transmission packet to be delivered to a receiver apparatus.