dm8168 how to chang yuv422i data format to yuv420sp

请问，我在A8侧读取yuv422i合适的yuv数据，如何在m3中转换成yuv420sp去编码呢？有相关的例程吗？求指教！

Shine：

请参考下面的帖子。https://www.deyisupport.com/question_answer/dsp_arm/davinci_digital_media_processors/f/39/t/64934.aspx