An imaging system comprising a panoramic visual image display, an associated directional sound playback device, and an associated motion reproduction device is disclosed. The imaging system conveys visual, sound and motion information related to a particular viewing direction to provide a realistic experience for the viewer. The imaging system can also comprise a panoramic visual image recording device capable of recording panoramic images, an associated directional sound capturing device capable of recording sound, and an associated directional motion capturing device capable of recording motion. Recorded panoramic images, sound and motion can be synchronously recorded to a common time code for simultaneous playback.

An example method involves: accessing a first list including ordered clip identifiers C.sub.1 . . . C.sub.n; accessing a second list including ordered player identifiers P.sub.1 . . . P.sub.x; determining that an identifier C.sub.m of the identifiers C.sub.1 . . . C.sub.n is restricted to being assigned an identifier P.sub.z from the identifiers P.sub.1 . . . P.sub.x; making a first determination that an identifier C.sub.p is a next one of the identifiers C.sub.1 . . . C.sub.n after the identifier C.sub.m to have a player-identifier assignment-restriction; responsive to making the first determination, (i) determining that the identifier C.sub.p is restricted to being assigned an identifier P.sub.y from the identifiers P.sub.1 . . . P.sub.x, and (ii) matching with each identifier C.sub.m+1 . . . C.sub.p in reverse order a respective one of the identifiers P.sub.1 . . . P.sub.x selected in a reverse ordered and looping fashion starting with the identifier P.sub.y; making a second determination that the identifier C.sub.m+1 has been matched with the player identifier P.sub.z; and responsive to making the second determination, causing an alert to be output.

An example method involves: accessing a first list including ordered clip identifiers C.sub.1 . . . C.sub.n; accessing a second list including ordered player identifiers P.sub.1 . . . P.sub.x; determining that an identifier C.sub.m of the identifiers C.sub.1 . . . C.sub.n is restricted to being assigned an identifier P.sub.z from the identifiers P.sub.1 . . . P.sub.x; making a first determination that an identifier C.sub.p is a next one of the identifiers C.sub.1 . . . C.sub.n after the identifier C.sub.m to have a player-identifier assignment-restriction; responsive to making the first determination, (i) determining that the identifier C.sub.p is restricted to being assigned an identifier P.sub.y from the identifiers P.sub.1 . . . P.sub.x, and (ii) matching with each identifier C.sub.m+1 . . . C.sub.p in reverse order a respective one of the identifiers P.sub.1 . . . P.sub.x selected in a reverse ordered and looping fashion starting with the identifier P.sub.y; making a second determination that the identifier C.sub.m+1 has been matched with the player identifier P.sub.z; and responsive to making the second determination, causing an alert to be output.

Embodiments of the present disclosure relate to the field of multimedia technology, and discloses a method and electronic device for optimizing playback of a stereoscopic film source and an apparatus. Some embodiments of the present disclosure include the following steps: acquiring a stereoscopic adjustment parameter related to a timeline of a stereoscopic film source, wherein the stereoscopic adjustment parameter includes T offset adjustments and time periods corresponding to the T offset adjustments, wherein T is a natural number; and when the stereoscopic film source is played in a stereoscopic mode, adjusting an offset of a frame that is in the time period, wherein the adjusted offset is the offset adjustment corresponding to the time period.

An example method involves: accessing a first list including ordered clip identifiers C.sub.1 . . . C.sub.n; accessing a second list including ordered player identifiers P.sub.1 . . . P.sub.x; determining that an identifier C.sub.m of the identifiers C.sub.1 . . . C.sub.n is restricted to being assigned an identifier P, from the identifiers P.sub.1 . . . P.sub.x; making a first determination that an identifier C.sub.p is a next one of the identifiers C.sub.1 . . . C.sub.n after the identifier C.sub.m to have a player-identifier assignment-restriction; responsive to making the first determination, (i) determining that the identifier C.sub.p is restricted to being assigned an identifier P.sub.y from the identifiers P.sub.1 . . . P.sub.x, and (ii) matching with each identifier C.sub.m+1 . . . C.sub.p in reverse order a respective one of the identifiers P.sub.1 . . . P.sub.x selected in a reverse ordered and looping fashion starting with the identifier P.sub.y; making a second determination that the identifier C.sub.m+1 has been matched with the player identifier P.sub.z; and responsive to making the second determination, causing an alert to be output.