Systems and methods for encoding multimedia content

A method carried out by a computing device to encode video content including metadata, the method comprising:

• determining metadata associated with a region of interest of at least one video frame, wherein the region of interest corresponds to at least one of a shape, an object, a motion vector or a scene in the video frame;
• encoding the video frame to generate an encoded video frame, wherein the region of interest is encoded at a higher resolution or bitrate than the rest of the video frame;
• and
• embedding the metadata according to a bitstream syntax of a bitstream comprising the encoded video frame to tightly couple the metadata to the encoded image frame to provide for metadata-to-content synchronization that is independent of playback performance, playback timing, and user interaction.

A non-transitory computer readable storage medium having stored thereon instructions that, when executed by one or more computing devices, cause the one or more computing devices to perform operations to encode video content including metadata, the operations comprising:

• identifying metadata associated with a region of interest of at least one video frame, wherein the region of interest corresponds to at least one of a shape, an object, a motion vector or a scene in the video frame;
• encoding the video frame to generate an encoded video frame, wherein the region of interest is encoded at a higher resolution or bitrate than the rest of the video frame;
• and
• embedding the metadata according to a bitstream syntax of a bitstream comprising the encoded video frame to tightly couple the metadata to the encoded image frame to provide for metadata-to-content synchronization that is independent of playback performance, playback timing, and user interaction.