4.4.2.4 Video setting and audio setting
Video settings: You can choose video format and adjust parameters of first stream and second stream,
including code rate, frame rate and video coding level.
Audio settings: You can select linear input or microphone input. Volume of input and output can be adjusted
here.
4.4.2.5 SD card plan recording
You can set up code stream:First stream or Second stream. Video file duration max can up to 900
seconds. Time of advance recording can be set up here.(Guidance can be found in 4.4.2.3.1)