发明名称 |
Video scene change detection and encoding complexity reduction in a video encoder system having multiple processing devices |
摘要 |
A method of encoding a video frame is disclosed in which video slices of the video frame are initially encoded in parallel using both interframe encoding and intraframe encoding. Then, after a first predetermined minimum amount of the video frame has been encoded, the method includes periodically determining whether the amount of intraframe encoded information for the frame achieves a first threshold, and when the first threshold is achieved, encoding the remainder of the video frame using only intraframe encoding. The method may include determining whether a lower second threshold is achieved based on relative complexity of the frame and quantization. The method may include performing similar comparisons on a slice by slice basis in which any one or more of the processing devices skips motion estimation and interframe encoding for corresponding video slices. A video encoder is disclosed which includes multiple processing devices and a shared memory. |
申请公布号 |
US8737475(B2) |
申请公布日期 |
2014.05.27 |
申请号 |
US20090364112 |
申请日期 |
2009.02.02 |
申请人 |
YAN YONG;STEINBERG EREZ;YITSCHAK YEHUDA;FREESCALE SEMICONDUCTOR, INC. |
发明人 |
YAN YONG;STEINBERG EREZ;YITSCHAK YEHUDA |
分类号 |
H04N7/12 |
主分类号 |
H04N7/12 |
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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