In MPEG video encoding, a group of pictures, or GOP, specifies the order in which intra-frames and inter-frames are arranged. The Moving Picture Experts Group or MPEG is a working group of ISO/IEC charged with the development of video and audio encoding standards. ... Inter-frame (P-frame) Coding is used in video coding (compression). ...
The GOP is a group of successive pictures within a MPEG-coded film and/or video stream. Each MPEG-coded film and/or video stream consists of successive GOPs. From the MPEG pictures contained in it the visible frames are generated.
A GOP can contain the following picture types:
I-picture and/or I-Frame (English intra coded picture) reference picture, corresponds to a fixed image and is independent of other picture types. Each GOP begins with this type of picture.
P-picture and/or P-Frame (English predictive coded picture) contains difference information from the preceding i or P-Frame.
B-picture and/or B-Frame (English bidirectionally predictive coded pictures) contains difference information from the preceding and/or following i or P-Frame.
D-picture and/or D-Frame (English DC direct coded picture) serves the fast advance.
A GOP always begins with an I-Frame. Afterwards several P-Frames follow, in each case with some frames distance. In the remaining gaps are B-Frames. With the next I-Frame a new GOP begins.
Le Universal PicturesGroup est l'entité de Vivendi Universal Entertainment qui regroupe les activités cinéma de Vivendi Universal.
En 2004, le Universal PicturesGroup se compose de :
En 2004, Vivendi Universal Entertainment a été racheté par General Electric qui a intégré le Universal PicturesGroup au nouveau groupe de médias NBC Universal.
Buena Vista Pictures Distribution, Inc. is a motion picture and television feature distribution company owned by The Walt Disney Company.
It was founded in 1954 as the costs of Walt Disney's animated features being distributed by RKO Radio Pictures were too high for the studio to cope.
The company distribute all features produced by Walt Disney Pictures, Touchstone Pictures, Hollywood Pictures, DisneyToon Studios, Touchstone Television, Miramax and several small independent companies which employ Buena Vista to distribute their films.
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