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1. (WO2018119955) CROSS-SYSTEM MULTIMEDIA DATA CODING AND DECODING METHOD, APPARATUS, ELECTRONIC DEVICE AND COMPUTER PROGRAM PRODUCT

Pub. No.:    WO/2018/119955    International Application No.:    PCT/CN2016/113276
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Fri Dec 30 00:59:59 CET 2016
IPC: H04N 19/127
Applicants: CLOUDMINDS (SHENZHEN) ROBOTICS SYSTEMS CO., LTD.
深圳前海达闼云端智能科技有限公司
Inventors: LI, Xiangyuan
李向远
Title: CROSS-SYSTEM MULTIMEDIA DATA CODING AND DECODING METHOD, APPARATUS, ELECTRONIC DEVICE AND COMPUTER PROGRAM PRODUCT
Abstract:
Provided by the present application are a cross-system multimedia data coding and decoding method, an apparatus, an electronic device, and a computer program product, the method comprising: in a first operating system, obtaining a coding and decoding request for multimedia data coding and decoding processing, the coding and decoding request comprising multimedia data requiring coding and decoding processing; sending the multimedia data to a shared memory; generating a coding and decoding instruction for coding and decoding processing of the multimedia data according to the coding and decoding request, the coding and decoding instruction comprising an offset address of the multimedia data in the shared memory; sending the coding and decoding instruction to a second operating system on the basis of cross-system communication; in the second operating system, obtaining the multimedia data from the shared memory according to the offset address in the coding and decoding instruction; and carrying out coding and decoding processing for the multimedia data according to the coding and decoding instruction, the shared memory being in a readable and writable state for both the first operating system and the second operating system. The present application enhances the performance of a virtual system and shortens the time for coding and decoding cross-system multimedia data.