Patent ID: 8600217

Claim:
A method for displaying pictures of a compressed video stream during playback mode operations corresponding to trick modes, said method comprising: receiving a compressed video stream that includes plural pictures encoded according to a first scan format; detecting a scan mode indicator in the compressed video stream, wherein the scan mode indicator indicates that a second scan format was used during the creation of the plural pictures, the first scan format different than the second scan format, the scan mode indicator further indicating a specific sequence of the plural pictures to which the scan mode indicator applies, wherein if the scan mode indicator indicates a film format, examining a plurality of scan mode flags in the compressed video stream over time to determine the scan format used during compression, and wherein the scan mode flag is provided in the compressed video in a separate file by itself; and responsive to a trick mode request and to a determination based on the scan mode indicator that the second scan format was used in the creation, displaying two fields of each respective decoded picture that corresponds to a subset of the plural pictures, the subset involved in fulfilling the trick mode request, each of the fields of the each respective decoded picture displayed during a respective picture display interval.