发明名称 |
Method and apparatus for decoding MPEG video signals with continuous data transfer |
摘要 |
A method and apparatus for decoding an input MPEG video stream are provided that includes a core processor with a very large instruction word (VLIW) processor and a co-processor that includes a variable length decoder (VLD) for decoding the MPEG video stream. The input MPEG video stream is organized into macroblocks, wherein each macroblock includes a header for a macroblock that is not decoded, and encoded data for a macroblock whose header is previously decoded by VLD. Thereafter, VLD decodes the encoded video data of a first macroblock whose header has been decoded, and decodes the header of a second (current) macroblock. VLIW then performs motion compensation on a current macroblock based upon reference data of a previously decoded macroblock. VLIW also adds a fake slice start code and fake macroblock data at the end of each picture into the input MPEG video data stream; and utilizes the fake slice start code and fake macroblock data to skip to a next picture. The fake macroblock data indicates an error to the VLD stopping the decoding process until the core processor clears the interrupt and reinitiates decoding of a selected slice.
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申请公布号 |
US6574273(B1) |
申请公布日期 |
2003.06.03 |
申请号 |
US20000481603 |
申请日期 |
2000.01.12 |
申请人 |
SONY CORPORATION;SONY ELECTRONICS, INC. |
发明人 |
LUNA AMELIA CARINO;WANG JASON N.;WILLIAMS RICHARD L. |
分类号 |
G06T9/00;H04N5/44;H04N7/26;H04N7/36;H04N7/46;H04N7/50;H04N7/64;(IPC1-7):H04N7/12 |
主分类号 |
G06T9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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