K. Gong, Berkeley MPEG-1 Video Encoder User's Guide, March 1994  Home/Search   Document Not in Database   Summary   Related Articles   Check

....temporarily, scalability allows all of the requests to be satisfied by gracefully degrading the request bit rates. In this paper, we consider only temporal scalability achieved by frame dropping. We assume a standard GOP pattern of IB 1 B 2 P 1 B 3 B 4 P 2 B 5 B 6 P 3 B 7 B 8 P 4 B 9 B 10 [9], and define four non zero scalable bit rates shown in Table 6. As shown in [8] the recommended strategy is to group all of the frames of each rate together in each read unit. That is, all of the frames that are used for the lowest rate reconstruction are grouped at the beginning of the storage ....

K. Gong, Berkeley MPEG-1 Video Encoder User's Guide, March 1994

....by harnessing compression inherent parallelism. In addition, software implementations can aid in the design of hardware by providing a platform for exploring implementation strategies. The Berkeley MPEG 1 video encoder is the first parallel encoder that runs on a network of Unix workstations [2]. Both the specification and discovery of parallelism in the encoder are done explicitly by the application. Basically, the application manifests as multiple processes that interact with each other using TCP IP based communication and synchronization calls. The application architecture consists of ....

....the best vector in the first search. The logarithmic search extends the concept of the two level search to the 8 entire macroblock, beginning with the largest possible motion first and refining the search to a finer level with each search. For more details on these parameters refer to [2], 3] 3.4. Output Format The encoder calculates a GOP at a time on a number of machines simultaneously and writes the files to the file system. As the GOPs are written to the files, the master concatenates these GOP bit streams in serial order to form the MPEG bit stream. A decoder that accepts ....

K. L. Gong. Berkeley MPEG-1 Video Encoder: User's Guide. Computer Science Division, University of California, Berkeley, CA, 1993.

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K. L. Gong. Berkeley MPEG-1 Video Encoder: User's Guide. Computer Science Division, University of California, Berkeley, CA, 1993.

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