System and method for codec for combining disparate content

A method of an electronic device for selective encryption of content to be encoded into a container, the method comprising:

• receiving, by a processor of the electronic device, a plurality of content items for encoding into a container, wherein each one of the plurality of content items is associated with a content key value;
• receiving, by the processor, one or more content selections from among the plurality of content items;
• retrieving, by the processor, encryption data for use in encrypting the one or more content selections;
• encrypting, by the processor, at least one content selection of the one or more content selections using an encryption key derived using the encryption data;
• for the encrypted at least one content selection, associating, by the processor, a corresponding content key value of the encrypted at least one content selection with the encryption data;
• encoding, by the processor, the associated corresponding content key value of the encrypted at least one content selection and the encryption data into the container;
• and
• encoding, by the processor, the encrypted at least one content selection and remaining content items of the plurality of content items into the container.