
Ps2_ ReadNextFrame is used to query the SDK image ready. If there is no ready, it will sleep and wait. If the image cannot be obtained during the default waiting time, it will timeout and exit. The default timeout is 350ms. However, if the user uses the slave trigger mode, because the trigger frequency is uncertain, when the frequency exceeds the default timeout, the user will also receive a read timeout, but the use will not be affected.