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dm8168 rdk4.0 processLink数据是怎么处理的?



经过OSD处理的数据是如何处理的?数据经过DecLink 之后进入DSP ,AlgLink_prv.c中调用System_getLinksFullFrames(),这样是从上一个Link的输出队列中取出帧BUFF,那么上一个Link的输出队列中还有保留原数据吗?还是取出之后就还会有原始数据存在? 因为我在AlgLink_prv.c中将取出的数据地址强制改变(pFrame->addr[0][0] = NULL)做了测试,数据最后还是正常的经过解码再输出到A8