Video data storage method and device in cloud storage system

An apparatus for storing video data in a cloud storage system, comprising:

• a video access module and a coding module, wherein, the video access module comprises:
• a data receiving sub-module, an information obtaining sub-module, a storage information determining sub-module, and a frame analyzing sub-module;
• the data receiving sub-module is configured for receiving to-be-stored video data;
• the information obtaining sub-module is configured for obtaining identification information of a storage object corresponding to the to-be-stored video data;
• the storage information determining sub-module is configured for determining the storage object corresponding to the to-be-stored video data, and a first data security level and a second data security level corresponding to the storage object based on the identification information;
• wherein, the first data security level is higher than the second data security level;
• the frame analyzing sub-module is configured for, for each frame in the to-be-stored video data, determining whether the frame is a key frame;
• the coding module is configured for:
• when the frame is the key frame, determining a first erasure code policy based on the first data security level, and storing the frame into the determined storage object based on the first erasure code policy, wherein, the first data security level is a number N1 of first original segments and a number M1 of first redundant segments;
• and
• when the frame is not the key frame, determining a second erasure code policy based on the second data security level, and storing the frame into the determined storage object based on the second erasure code policy, wherein, the second data security level is a number N2 of second original segments and a number M2 of second redundant segments;
• the number M1 of first redundant segments is larger than the number M2 of second redundant segments.