DEVICE AND METHOD FOR VIDEO ENCODING

摘要

A video encoding device calculates number of frames into which the current image needs to be encoded. The video encoding device divides the current image into a plurality of macro blocks, identifies importance of the respective macro blocks according to content of the current image and ranks the macro blocks from high to low according to the assigned importance. The video encoding device labels each macro block with a label, and encodes the macro blocks according to its label to form frames.

主权项

1. A video encoding device, comprising:
at least one processor; a storage system; and one or more programs that are stored in the storage system and executed by the at least one processor, the one or more programs comprising instructions for: determining whether to encode a current image into I-frame; calculating N dispersed frames upon condition that the current image will be encoded into I-frame, wherein N is a positive integer starting at one; dividing the current image into M macro blocks, and identifying importance of the M macro blocks according to a content of the current image, wherein M is a positive integer starting at one; ranking the M macro blocks from high to low according to the importance, and labeling each macro block with label x, wherein label x is a positive integer from 1 to N; encoding the macro blocks whose label x equals 1 with a low QP value and intra-coding and encoding the macro blocks whose label x is greater than 1 with a high QP value and intra-coded to form a first frame; and encoding the macro blocks whose label x is less than n with inter-coding to form a nth frame, wherein n is a positive integer from 2 to N.