Get the constraints on HW frames given a device and the HW-specific
configuration to be used with that device. If no HW-specific
configuration is provided, returns the maximum possible capabilities
of the device.
@param ref a reference to the associated AVHWDeviceContext.
@param hwconfig a filled HW-specific configuration structure, or NULL
to return the maximum possible capabilities of the device.
@return AVHWFramesConstraints structure describing the constraints
on the device, or NULL if not available.
Get the constraints on HW frames given a device and the HW-specific configuration to be used with that device. If no HW-specific configuration is provided, returns the maximum possible capabilities of the device.
@param ref a reference to the associated AVHWDeviceContext. @param hwconfig a filled HW-specific configuration structure, or NULL to return the maximum possible capabilities of the device. @return AVHWFramesConstraints structure describing the constraints on the device, or NULL if not available.