公开(公告)号：US10349069B2

公开(公告)日：2019-07-09

申请号：US13710794

申请日：2012-12-11

Applicant: Sony Interactive Entertainment Inc.

Inventor： Jason N. Wang ,  Hung-Ju Lee

IPC: H04B1/66 ,  H04N19/42 ,  H04N19/156

Abstract: In aspects of the present disclosure, a software encoder augments a hardware encoder by implementing portions of a video encoding task that are not supported by the hardware encoder while the hardware encoder implements other portions of the encoding task. The use of a software encoder to augment a hardware encoder in this manner can extend the useful life of a hardware encoder, allow the system to adapt to changes in video coding standards, and in some cases improve performance of encoding implemented by hardware or software alone. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

公开(公告)号：US20170289551A1

公开(公告)日：2017-10-05

申请号：US15462608

申请日：2017-03-17

Applicant: Sony Interactive Entertainment Inc.

Inventor： Hung-Ju Lee

IPC: H04N19/15 ,  H04N19/51 ,  H04N19/124 ,  H04N19/169 ,  H04N19/61

CPC classification number: H04N19/15 ,  H04N7/00 ,  H04N11/00 ,  H04N19/124 ,  H04N19/172 ,  H04N19/188 ,  H04N19/51 ,  H04N19/61

Abstract: An advanced constant quality rate control algorithm with new features and enhancements. can be applicable to different kinds of video scenes, in addition to static or less motion scenes. Statistical data is calculated at the beginning of encoding for each line of sections of a frame. Based on the statistical data, which case of a plurality of cases to be executed is determined and maximum and minimum QP values are determined according to the determined case. Actual maximum and minimum QP of the current line using is maintained using the maximum and minimum QP and a final QP value is determined for all sections in each line. A lambda value for encoding is determined from the final QP. At the end of encoding the picture, the number of frames encoded using constant quality is counted, the maximum and minimum QP and VBV fullness for each line is updated.