Alibaba Group Holding Limited

Youku Information Technology (beijing) Co., Ltd.

Yuxing Wu

Xiaojie Sheng

Wei Li

Ji Wang

Wuping Du

Disclosed are video playback and data providing methods in a virtual scene, and a client and server implementing the same. The video playback method comprises: receiving current video segment data sent from a server, wherein the current video segment data represents a video segment, and the current video segment data comprises at least one specified viewing angle and a data identifier representing video segment data to which the specified viewing angle is directed; playing the video segment represented by the current video segment data, and acquiring a current viewing angle of a user during playback; and determining a target specified viewing angle matching the current viewing angle from the at least one specified viewing angle, wherein a video segment represented by video segment data to which the target specified viewing angle is directed is played at the end of the playback of the video segment represented by the current video segment data. The technical solution provided in the disclosure enables a user to move in a virtual scene while avoiding the use of external devices.

Providing video playback and data associated with a virtual scene

Panoramic video transcoding methods, devices, and apparatuses are provided. The method involves a central processing unit (CPU) and a graphics processing unit (GPU) and includes decoding a panoramic video; mapping, at least partly using the GPU, the decoded video data to N visual angles, to obtain N channels of video data, in which N is more than 1; encoding the N channels of video data respectively to obtain N channels of video streams; and slicing and packing the N channels of video streams respectively.

Methods, apparatuses and devices for panoramic video transcoding

Image mapping and processing methods, apparatuses and machine-readable media are disclosed. The methods include obtaining a panoramic video image, and demarcating the panoramic video image into a primary area and at least one ancillary area; determining a primary quantization parameter corresponding to the primary area, and an ancillary quantization parameter corresponding to the ancillary area, wherein the primary quantization parameter is smaller than the ancillary quantization parameter, with the quantization parameter being inversely proportional to an image quality; and encoding the primary area based on the primary quantization parameter, encoding the ancillary area based on the ancillary quantization parameter, and determining a coded panoramic video image.

Growing community of inventors

Hangzhou, China

Yuxing Wu