Shanghai Bilibili Technology Co., Ltd.

Pengcheng Li

Junxing Tang

Zhiwei Chen

Yi Bin Wang

Jun Liu

Longwen Gao

Juan Chen

Xiaofeng Ji

Qiang Fu

Hanming Li

Embodiments of the present application provide a browser-based frame extraction method. The method includes: monitoring a target operation of a user on a target page of a browser; obtaining a local video file associated with the target operation; and extracting a plurality of target frames from the local video file using a WebAssembly video parser in the browser. This disclosure enables a browser to independently complete operations such as frame extraction on videos in various encoding formats so as to reduce server load.

Browser-based frame extraction method and system

Techniques of generating and displaying an attention curve relative to a progress bar are described in the present disclosure. The disclosed techniques include sending a request for acquiring a target video that is divided into a plurality of predetermined time period; receiving data comprising a number of comment events and a number of drag progress bar events within each preset time period of the target video; determining an attention value corresponding each predetermined time period based on the number of the comment events and the number of the drag progress bar events within each predetermined time period of the target video; generating an attention curve based on a plurality of attention values corresponding to the plurality of predetermined time periods of the target video; and displaying the attention curve relative to a progress bar, wherein amplitude values of the attention curve relative to the progress bar are in proportion to the plurality of attention values corresponding to the plurality of predetermined time periods of the target video.

Method and device of displaying a progress bar, computing device, and readable storage medium

Techniques for processing a multimedia file in real-time are described herein. The disclosed techniques include receiving a plurality of fragments of a multimedia file by a data stream conversion service, wherein the data stream conversion service receives a first fragment containing metadata of the multimedia file and then receives other fragments of the multimedia file in a predetermined order; sending a notification message to a message queue by the data stream conversion service in response to receiving the first fragment, wherein the notification message includes the metadata of the multimedia file and a corresponding Hyper Text Transfer Protocol (HTTP) interface address; obtaining the notification message from the message queue by an encoding and decoding service; and processing the other fragments of the multimedia file based at least in part on the notification message by the encoding and decoding service.

Multimedia file processing

Growing community of inventors

Shanghai, China

Pengcheng Li