Detection of loss of connection of a cloud based signal processing of multimedia signals

A multimedia system comprising a memory and at least one processing unit, the memory containing instructions executable by said at least one processing unit, wherein the multimedia system is configured to perform the steps of:

• encoding a key sequence into a multimedia stream to generate an amended multimedia stream, the key sequence comprising a predefined sequence of numbers;
• transmitting the amended multimedia stream with the encoded key sequence to a remote processing entity for remote processing of the amended multimedia stream;
• receiving, from the remote processing entity, a received multimedia stream;
• and
• determining whether the received multimedia stream includes the encoded key sequence, wherein in response to determining that the received multimedia stream does not include the encoded key sequence, the multimedia system uses, for an output of the multimedia system, a locally processed multimedia stream processed within the multimedia system.

One or more non-transitory computer-readable storage media including instructions that, when executed by at least one processor, cause the at least one processor to perform the steps of:

• encoding a key sequence into a multimedia stream to generate an amended multimedia stream, the key sequence comprising a predefined sequence of numbers;
• transmitting the amended multimedia stream with the encoded key sequence to a remote processing entity for remote processing of the amended multimedia stream;
• receiving, from the remote processing entity, a received multimedia stream;
• and
• determining whether the received multimedia stream includes the encoded key sequence, wherein in response to determining that the received multimedia stream does not include the encoded key sequence, a multimedia system uses, for an output of the multimedia system, a locally processed multimedia stream processed within the multimedia system.