InputSignal

Supported Hardware Devices: Pro Capture cards, USB Capture devices

Contents Demonstrated in the Sample:

1. Retrieving detailed format information of input audio and video signals
2. Channel selection via command parameters when multiple devices are available

Call Logic:

1. Obtain version information, initialize, and enumerate devices: MWGetVersion, MWCaptureInitInstance, MWRefreshDevice, MWGetChannelCount
2. Open the device:
   1. Open the device specified by command parameters: MWOpenChannel
   2. When no device is specified in command parameters, open the first available channel by default: MWGetDevicePath, MWOpenChannelByPath
3. Retrieve channel information: MWGetChannelInfo
4. Retrieve input signal status information: MWGetInputSpecificStatus
5. Retrieve video signal status information: MWGetVideoSignalStatus
6. Retrieve audio signal status information: MWGetAudioSignalStatus
7. Release resources: MWCloseChannel, MWCaptureExitInstance

Result:

Flowchart: