Streaming multiple encodings with virtual stream identifiers

A method for composing video display data, comprising:

• a computing system receiving a container frame multiplexed amongst a plurality of container frames within one inputted video stream, the container frame comprising a plurality of concatenated virtual frames, wherein each container and virtual frame comprises a frame header and delimiter, and each virtual frame corresponding to one of a plurality of encodings generated from a respective source video frame, and at least one of the plurality of virtual frames in the container frame are encoded using a different coding standard than at least another one of the plurality of virtual frames in the container frame;
• where the plurality of encodings comprise a first encoding of a first region of interest of the source video frame and a second encoding of a second region of interest of the source video frame, the first region of interest and the second region of interest being non-identical, and the plurality of encodings comprise virtual stream identifiers;
• the computing system determining a subset of the plurality of encodings to display, based on resource availability and received client parameters indicative of at least one region of interest and a resolution value, and the subset including the first encoding and the second encoding;
• the computing system using the virtual stream identifiers of the received plurality of encodings to reconstruct the subset of the plurality of encodings;
• the computing system combining the subset, including the first encoding and the second encoding, into a composite video stream;
• and
• the computing system transmitting the composite video stream.