发明名称 |
Programmable filter for removing stuffing bits from an MPEG-2 bit-stream |
摘要 |
An MPEG-2 video decoder which identifies and removes stuffing data from an MPEG-2 bit-stream before storing the bit-stream into the VBV buffer of the decoder. The decoder monitors the MPEG-2 bit-stream for successive groups of zero-valued bytes. When a sequence of successive of zero-valued bytes is encountered that is greater than a programmed maximum length the decoder identifies the sequence as stuffing data and inhibits any further zero-valued bytes from being passed until the next non-zero valued byte is encountered. The decoder specifies two maximum length values, one for the number of stuffing bytes which may precede a Slice start code and the other for the number of stuffing bytes which may precede a non-Slice code. These values may be changed during the decoding operation by a microprocessor.
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申请公布号 |
US6522694(B1) |
申请公布日期 |
2003.02.18 |
申请号 |
US19980169791 |
申请日期 |
1998.10.09 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
RYAN ROBERT T. |
分类号 |
H04N5/14;H04N5/92;H04N7/32;H04N7/50;(IPC1-7):H04N7/12 |
主分类号 |
H04N5/14 |
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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