Method and Apparatus for Encoding/Decoding

A decoding method of receiving a bitstream and decoding the bitstream, the decoding method comprising:

• extracting a data bit array comprising encoded data and encoding information from the bitstream;
• extracting a flag indicating whether an align bit array comprises information from the bitstream;
• and
• if the flag has a value of 1, extracting an align bit array from the bitstream and decoding the extracted data bit array using information included in the extracted align bit array.

An encoding apparatus comprising:

• an encoding unit which encodes data;
• and
• a bitstream generation unit which generates a bitstream using the encoded data, wherein the bitstream generation unit comprises:
• a data bit array generation unit which generates a data bit array comprising the encoded data and encoding information;
• and an align bit array generation unit which generates an align bit array comprising one or more 1s.

A decoding apparatus of receiving a bitstream and decoding the bitstream, the decoding apparatus comprising:

• a data bit array extraction unit which extracts a data bit array comprising encoded data and encoding information from the bitstream;
• an align bit array extraction unit which extracts an align bit array comprising one or more 1s from the bitstream;
• and
• a decoding unit which decodes the extracted data bit array using information included in the extracted align bit array.

A data structure of a bitstream comprising encoded data, the data structure comprising:

• a frame data field which comprises the encoded data and encoding information as frames;
• a byte align field which comprises an align bit array that comprises one or more 1s;
• and
• a flag which indicates whether the align bit array comprises information.