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dm6467的DSP侧算法问题



请教一个双核平台中dsp侧的问题:我在dsp这边用了两个buffer接受两帧相邻的图像,然后对其亮度分量做帧差(相应位置像素点做差取绝对值),将结果传给outbuf,输出显示,但得到的结果总是有问题,有一半屏幕显示是正常的,另外屏幕上会剧烈的闪动。如图:左侧深色的是正常的结果。