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# holoscan::ops::video_io::enumerate_video_transmission_devices

> Enumerate transmission capabilities (concrete transmit view per device).

```cpp showLineNumbers={false}
std::vector<VideoTransmitCapabilities> holoscan::ops::video_io::enumerate_video_transmission_devices(
    const std::string &backend_id = ""
)
```

Enumerate transmission capabilities (concrete transmit view per device).