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int PVideoInputDevice_V4L::GetNumChannels (  ) [virtual]

Get the number of video channels available on the device.

Default behaviour returns 1.

Reimplemented from PVideoDevice.

Definition at line 972 of file vidinput_v4l.cxx.

References IsOpen().

  /* If Opened, return the capability value, else 1 as in videoio.cxx */
  if (IsOpen ())
    return videoCapability.channels;
    return 1;

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