Bitstream navigation techniques

A computer program product, the computer program product being tangibly embodied on a non-transitory computer-readable medium and including executable code that, when executed, is configured to cause a data processing apparatus to:

• receive a request to navigate through a bitstream by a navigation time, the bitstream having a plurality of data sequences, each of the plurality being associated with a different presentation time of the bitstream;
• correlate the navigation time with a number of bytes from a current location of the bitstream to a target location of the bitstream;
• navigate the bitstream to reach the target location within the bitstream, based on the number of bytes;
• and
• navigate from an initial start code proximate to the target location within the bitstream to a further start code until a final start code is reached that has a timestamp which, compared to a timestamp of the current location, indicates a presentation time that corresponds to the navigation time and thereby satisfies the request.

A method comprising:

• receiving a request to navigate through a bitstream by a navigation time, the bitstream having a plurality of data sequences, each of the plurality being associated with a different presentation time of the bitstream;
• correlating the navigation time with a number of bytes from a current location of the bitstream to a target location of the bitstream;
• navigating the bitstream to reach the target location within the bitstream, based on the number of bytes;
• and
• navigating from an initial start code proximate to the target location within the bitstream to a further start code until a final start code is reached that has a timestamp which, compared to a timestamp of the current location, indicates a presentation time that corresponds to the navigation time and thereby satisfies the request.