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DM6446奇怪问题,求解惑



我运行encodedecode程序时(采用直通方式),如果直接按如下命令在串口中输入,

./encodedecode -p

则提示Error: Failed to detect video standard, video input connected?

如果用下面命令运行,就是打印调试信息。

DMAI_DEBUG=2 ./encodedecode -p 

则运行正常,图像能显示。

这是什么诡异的问题啊,是我的哪里配置有问题,非要加DMAI_DEBUG=2才能正常运行。

这个问题我在单独用./encode 命令时,同样出现这样问题。

    • DMAI_DEBUG=0 disables DMAI trace, even if it is set by Dmai_setLogLevel in the application itself.
    • DMAI_DEBUG=1: errors and warnings
    • DMAI_DEBUG=2: all messages
    DMAI_DEBUG=2打印所有的信息,其作用有点相当于加了一些usleep之类,所以是不是有可能线程高度之间出了问题