A reception method for a receiving apparatus including a plurality of decoders, the reception method comprising: receiving a plurality of MPEG Media Transport, MMT, packets, the plurality of packets being obtained by packetizing a plurality of pieces of encoded data, the plurality of pieces of encoded data being obtained by encoding a plurality of regions of a picture such that the plurality of regions can be decoded independently of each other, the plurality of regions being obtained by dividing the picture, the packetization being performed such that pieces of encoded data for different regions are not stored in a single packet, and control information is stored in one MMT packet different from the plurality of packets where the plurality of pieces of encoded data are stored, the control information comprising an access unit delimiter, a sequence parameter set, SPS, a picture parameter set, PPS, and supplemental enhancement information, SEI; combining control information to each of the plurality of pieces of encoded data of the plurality of regions, to generate a plurality of pieces of combined data, the control information being commonly used for all decoding units in the picture; and decoding the plurality of pieces of combined data in parallel by using the plurality of decoders; wherein each of the plurality of pieces of encoded data has a one-to-one correspondence with a basic data unit, the basic data unit being a unit of data stored in one or more packets, each of the plurality of pieces of encoded data is stored in the one or more packets, and the header information of each of the packets includes identification information capable of indicating any one of: only the packet is included in the basic data unit; a plurality of packets are included in the basic data unit, and the packet is a first packet of the basic data unit; a plurality of packets are included in the basic data unit, and the packet is a packet other than the first packet and a last packet of the basic data unit; and a plurality of packets are included in the basic data unit, and the packet is the last packet of the basic data unit. receiving a plurality of MPEG Media Transport, MMT, packets, the plurality of packets being obtained by packetizing a plurality of pieces of encoded data, the plurality of pieces of encoded data being obtained by encoding a plurality of regions of a picture such that the plurality of regions can be decoded independently of each other, the plurality of regions being obtained by dividing the picture, the packetization being performed such that pieces of encoded data for different regions are not stored in a single packet, and control information is stored in one MMT packet different from the plurality of packets where the plurality of pieces of encoded data are stored, the control information comprising an access unit delimiter, a sequence parameter set, SPS, a picture parameter set, PPS, and supplemental enhancement information, SEI; combining control information to each of the plurality of pieces of encoded data of the plurality of regions, to generate a plurality of pieces of combined data, the control information being commonly used for all decoding units in the picture; and decoding the plurality of pieces of combined data in parallel by using the plurality of decoders; wherein each of the plurality of pieces of encoded data has a one-to-one correspondence with a basic data unit, the basic data unit being a unit of data stored in one or more packets, each of the plurality of pieces of encoded data is stored in the one or more packets, and the header information of each of the packets includes identification information capable of indicating any one of: only the packet is included in the basic data unit; a plurality of packets are included in the basic data unit, and the packet is a first packet of the basic data unit; a plurality of packets are included in the basic data unit, and the packet is a packet other than the first packet and a last packet of the basic data unit; and a plurality of packets are included in the basic data unit, and the packet is the last packet of the basic data unit.