For device supports more than one stream, you can specify parameters for each
stream type.
- Main Stream
- The stream stands for the best stream performance the device supports. It
usually offers the best resolution and frame rate the device can do. But high
resolution and frame rate usually means larger storage space and higher
bandwidth requirements in transmission.
- Sub Stream
- The stream usually offers comparatively low resolution options,
which consumes less bandwidth and storage space.
- Other Streams
- Steams other than the main stream and sub stream may also be offered for
customized usage.