Quality-based video compression

摘要

Various embodiments are disclosed herein that relate to quality-based video encoding. For example, one disclosed embodiment provides a video compression system configured to compress a video item at a constant average quality to form compressed video data. Further, the system is configured to compare a bit rate of each portion of a plurality of portions of the compressed video data to a threshold bit rate, and if a bit rate of a selected portion of the compressed video data meets or exceeds the threshold bit rate, then adjust a compression process variable while compressing a segment of the video item corresponding to the selected portion of the compressed video data to reduce the bit rate of the portion of the compressed video data.

主权项

1. A video compression system, comprising:
a logic subsystem configured to execute instructions; and a data-holding subsystem comprising instructions stored thereon that are executable by the logic subsystem to:
compress a video item in a first compression pass at a constant average quality to form compressed video data;compare a bit rate of each portion of a plurality of portions of the compressed video data to a threshold bit rate; andif a bit rate of a selected portion of the compressed video data meets or exceeds the threshold bit rate, then in a second compression pass adjust a compression process variable while compressing a segment of the video item corresponding to the selected portion of the compressed video data to reduce the bit rate of the portion of the compressed video data.