公开(公告)号：US11849213B2

公开(公告)日：2023-12-19

申请号：US17693032

申请日：2022-03-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Tankun Chen ,  Huayang Wu ,  Risheng Shen

IPC: H04N23/60 ,  H04N5/222 ,  H04N23/63

CPC classification number: H04N23/64 ,  H04N5/2222 ,  H04N23/632 ,  H04N23/633

Abstract: Embodiments of this application provide a callback stream processing method and a device, and relate to the field of electronic technologies. In a callback stream scenario, an electronic device may set a preview stream and a callback stream in parallel. After an application sets a callback function, the electronic device may directly return, by using the callback function, callback stream data to the application for processing. This can shorten a time consumed for creating a preview stream and a callback stream, shorten a time consumed for obtaining callback stream data, and shorten a user waiting time.