Picture display order determining method and apparatus, and video coding device

A picture display order determining apparatus, wherein the apparatus comprises:

• a receiver configured to receive a video sequence, wherein the video sequence comprises a plurality of pictures;
• a first obtaining circuit, configured to obtain a decoding order index value of a current picture in the plurality of pictures and a decoding order index value of a previous picture that is adjacent to the current picture according to a decoding order;
• a first updating circuit, configured to add 1 to a cycle identifier value when the decoding order index value of the current picture is less than the decoding order index value of the previous picture;
• a determining circuit, configured to determine a display order index value of the current picture based on a sum of the decoding order index value of the current picture and a preset positive integer multiple of the cycle identifier value;
• and
• an ordering circuit for arranging the plurality of pictures according to the display order index value determined for each of the plurality of pictures.