公开(公告)号：US20210368179A1

公开(公告)日：2021-11-25

申请号：US17350303

申请日：2021-06-17

Applicant: Beijing Baidu Netcom Science and Technology Co., Ltd.

Inventor： Le Shi ,  Wenpeng Ding

IPC: H04N19/136 ,  H04N19/172

Abstract: A method and apparatus for coding a video, device and medium are provided. An implementation of the method include: determining a first video frame structure and a second video frame structure based on a pre-set threshold for a B-frame number; determining a target video frame structure based on the first video frame structure, the second video frame structure, and a pre-set condition; and coding video frames in a to-be-coded video frame sequence according to the target video frame structure.

公开(公告)号：US11632552B2

公开(公告)日：2023-04-18

申请号：US17350303

申请日：2021-06-17

Applicant: Beijing Baidu Netcom Science and Technology Co., Ltd.

Inventor： Le Shi ,  Wenpeng Ding

IPC: H04N19/136 ,  H04N19/172 ,  H04N19/114

Abstract: A method and apparatus for coding a video, device and medium are provided. An implementation of the method include: determining a first video frame structure and a second video frame structure based on a pre-set threshold for a B-frame number; determining a target video frame structure based on the first video frame structure, the second video frame structure, and a pre-set condition; and coding video frames in a to-be-coded video frame sequence according to the target video frame structure.

公开(公告)号：US20210258580A1

公开(公告)日：2021-08-19

申请号：US17239181

申请日：2021-04-23

Applicant: Beijing Baidu Netcom Science and Technology Co., Ltd.

Inventor： Le Shi ,  Wenpeng Ding

IPC: H04N19/124 ,  H04N19/463 ,  H04N19/184

Abstract: The present disclosure discloses a method and apparatus for coding a video, an electronic device and a computer-readable storage medium. A specific implementation scheme is: coding a sampled video frame sequence of a source video by using a preset coding mode to obtain a sample coding overhead; analyzing frame types of frames to be coded in the source video to obtain a frame type sequence of the frames to be coded; determining a predictive coding overhead of the source video according to the sample coding overhead of the source video, the frame type sequence of the frames to be coded, and quantization parameters of coding modes to be used corresponding to different frame types; and determining a coding strategy based on the predictive coding overhead and requirements of transmission bit rate limit information.

公开(公告)号：US11463697B2

公开(公告)日：2022-10-04

申请号：US17239181

申请日：2021-04-23

Applicant: Beijing Baidu Netcom Science and Technology Co., Ltd.

Inventor： Le Shi ,  Wenpeng Ding

IPC: H04N19/124 ,  H04N19/184 ,  H04N19/463

Abstract: A method and apparatus for coding a video, an electronic device and a computer-readable storage medium. A specific implementation scheme is: coding a sampled video frame sequence of a source video by using a preset coding mode to obtain a sample coding overhead; analyzing frame types of frames to be coded in the source video to obtain a frame type sequence of the frames to be coded; determining a predictive coding overhead of the source video according to the sample coding overhead of the source video, the frame type sequence of the frames to be coded, and quantization parameters of coding modes to be used corresponding to different frame types; and determining a coding strategy based on the predictive coding overhead and requirements of transmission bit rate limit information.

公开(公告)号：US11792407B2

公开(公告)日：2023-10-17

申请号：US17353329

申请日：2021-06-21

Applicant: Beijing Baidu Netcom Science and Technology Co., Ltd.

Inventor： Le Shi ,  Wenpeng Ding

IPC: H04N19/14 ,  H04N19/105 ,  H04N19/159 ,  H04N19/172

CPC classification number: H04N19/14 ,  H04N19/105 ,  H04N19/159 ,  H04N19/172

Abstract: A method, apparatus, device and medium for coding a video are provided. An implementation plan includes: determining an initial video frame structure based on a preset threshold for a B-frame number; in response to determining that the initial video frame structure meets a preset condition, shortening the initial video frame structure to obtain a candidate video frame structure set; determining a target video frame structure from the candidate video frame structure set; and performing video coding on video frames in a to-be-coded video frame sequence according to the target video frame structure.

公开(公告)号：US20210377543A1

公开(公告)日：2021-12-02

申请号：US17353329

申请日：2021-06-21

Applicant: Beijing Baidu Netcom Science and Technology Co., Ltd.

Inventor： Le Shi ,  Wenpeng Ding

IPC: H04N19/14 ,  H04N19/105 ,  H04N19/159 ,  H04N19/172

Abstract: A method, apparatus, device and medium for coding a video are provided. An implementation plan includes: determining an initial video frame structure based on a preset threshold for a B-frame number; in response to determining that the initial video frame structure meets a preset condition, shortening the initial video frame structure to obtain a candidate video frame structure set; determining a target video frame structure from the candidate video frame structure set; and performing video coding on video frames in a to-be-coded video frame sequence according to the target video frame structure.