1. An information processing apparatus (1) comprising:
circuitry (142, 143, 144) configured to:
arrange a first number of datagrams in a portion of a matrix of a
predetermined size, the first number of datagrams being less than a value defined by a total number of rows of the matrix and a total number of columns of the matrix,
generate a redundant datagram for forward error correction for each of the datagrams belonging to one row of the matrix and for each of the datagrams belonging to one column of the matrix,
determine a transmission order of the datagrams and the redundant
datagrams so as to transmit datagrams belonging to a first direction in order along the first direction and thereafter transmit a redundant datagram for the datagrams belonging to the first
direction,
provide a predetermined flag to at least one of a last datagram in the transmission order, a redundant datagram for datagrams belonging to the first direction of the last datagram, and a redundant datagram for datagrams belonging to a second direction of the last datagram, and
transmit the datagrams and the redundant datagrams for reproduction of
moving image content of the datagrams to a reception apparatus according to the transmission
order.
2. The information processing apparatus (1) according to claim 1,
wherein, in response to a datagram not being present in the first direction, the circuitry (144) is further configured to determine the transmission order so as to transmit a redundant datagram, for a datagram belonging to a second direction in a position of the datagram that is not present, before the redundant datagram for the datagrams belonging to the first direction.

3. The information processing apparatus (1) according to claim 1,
wherein the circuitry (144) is further configured to transmit the datagrams and the redundant datagrams in accordance with the transmission order.
4. The information processing apparatus (1) according to claim 1,
wherein the circuitry (13, 141, 142) is further configured to
input a second number of datagrams that is greater than the value and includes the first number of datagrams,
divide the second number of datagrams corresponding to the value, and arrange the second number of datagrams in another matrix of the predetermined size and the portion of the matrix of the predetermined size.
5. The information processing apparatus (1) according to claim 1,
wherein the circuitry (143) is further configured to generate the redundant datagrams by an exclusive OR of the datagrams belonging to the one row or the one column.
6. The information processing apparatus (1) according to claim 1,
wherein the first direction is either of a horizontal direction and a vertical direction.
7. The information processing apparatus (1) according to claim 1,
wherein each of the datagrams is at least one of video data, audio data, and metadata constituting the moving image content.
8. An information processing method comprising:

arranging datagrams in a portion of a matrix of a predetermined size, a number of the datagrams being less than a value defined by a total number of rows of the matrix and a total number of columns of the matrix;
generating a redundant datagram for forward error correction for each of the datagrams belonging to one row of the matrix and for each of the datagrams belonging to one column of the matrix;
determining a transmission order of the datagrams and the redundant datagrams so as to transmit datagrams belonging to a first direction in order along the first direction and thereafter transmit a redundant datagram for the datagrams belonging to the first direction;
providing a predetermined flag to at least one of a last datagram in the transmission order, a redundant datagram for datagrams belonging to the first direction of the last datagram, and a redundant datagram for datagrams belonging to a second direction of the last datagram; and
transmitting the datagrams and the redundant datagrams for reproduction of moving image content of the datagrams to a reception apparatus according to the transmission order.