Video decoding method and apparatus using the same

A video encoding method, comprising:

• deriving, by an encoding apparatus, a reference picture list for inter prediction;
• deriving, by the encoding apparatus, a prediction sample of a current block based on the reference picture list;
• deriving, by the encoding apparatus, a residual sample of the current block;
• determining, by the encoding apparatus, whether to signal information on modification of reference picture lists;
• deriving, by the encoding apparatus, a lists_modification_present_flag indicating whether the information on modification of the reference picture lists is present based on the result of the determination;
• deriving, by the encoding apparatus, residual signal based on the residual sample;
• and
• encoding, by the encoding apparatus, video information including the lists modification present flag and the residual signal,
• wherein the lists_modification_present_flag is comprised in a picture parameter set (PPS) of the video information.

A non-transitory decoder-readable storage medium storing a video data, the video data comprising a decoder executable program, the decoder executable program, when executed, causing a decoder to perform the following steps:

• obtaining a lists_modification_present_flag indicating whether information on modification of reference picture lists is present;
• obtaining residual signal of a current block;
• deriving a reference picture list based on a value of the lists_modification_present_flag;
• deriving a prediction sample of the current block based on the reference picture list;
• deriving a residual sample of the current block based on the residual signal;
• and
• generating a reconstructed sample based on the prediction sample and the residual sample,
• wherein the lists_modification_present_flag is included in a picture parameter set (PPS) of the video data.