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davinci修改API

大家好,我现在想修改API,使我传入的变量经过计算后可以传出来,我在video_copy例程下,修改了VIDENC_process函数的VIDENC_InArgs和VIDENC_OutArgs结构体,分别在最后加入了一个变量,同时对应的修改了IVIDENC_InArgs结构体,但是我发现IVIDENC_Outargs中传回来的变量是一个特别大的数,不知咋回事