/// <summary>
/// Disable a connection.
/// </summary>
internal void Disable()
{
if (Enabled)
{
MMALCheck(MMALConnection.mmal_connection_disable(this.Ptr), "Unable to disable connection");
}
}
/// <summary>
/// Enable a connection. The format of the two ports must have been committed before calling this function, although note that on creation,
/// the connection automatically copies and commits the output port's format to the input port.
/// </summary>
internal void Enable()
{
if (!Enabled)
{
MMALCheck(MMALConnection.mmal_connection_enable(this.Ptr), "Unable to enable connection");
}
}
/// <summary>
/// Facility to create a connection between two port objects
/// </summary>
/// <param name="output">The output port of the connection</param>
/// <param name="input">The input port of the connection</param>
/// <returns></returns>
internal static MMALConnectionImpl CreateConnection(MMALPortBase output, MMALPortBase input, MMALDownstreamComponent inputComponent)
{
IntPtr ptr = IntPtr.Zero;
MMALCheck(MMALConnection.mmal_connection_create(&ptr, output.Ptr, input.Ptr, MMALConnection.MMAL_CONNECTION_FLAG_TUNNELLING | MMALConnection.MMAL_CONNECTION_FLAG_ALLOCATION_ON_INPUT), "Unable to create connection");
return(new MMALConnectionImpl((MMAL_CONNECTION_T *)ptr, output, input, inputComponent, output.ComponentReference));
}
/// <summary>
/// Destroy a connection. Release an acquired reference on a connection. Only actually destroys the connection when the last reference is
/// being released. The actual destruction of the connection will start by disabling it, if necessary. Any pool, queue, and so on owned by
/// the connection shall then be destroyed.
/// </summary>
internal void Destroy()
{
//Cleaning port pools for sanity.
this.UpstreamComponent.CleanPortPools();
this.DownstreamComponent.CleanPortPools();
MMALCheck(MMALConnection.mmal_connection_destroy(this.Ptr), "Unable to destroy connection");
}
/// <summary>
/// Disable a connection.
/// </summary>
public void Disable()
{
if (this.Enabled)
{
MMALLog.Logger.LogDebug($"Disabling connection between {this.OutputPort.Name} and {this.InputPort.Name}");
MMALCheck(MMALConnection.mmal_connection_disable(this.Ptr), "Unable to disable connection");
}
}
/// <summary>
/// Facility to create a connection between two port objects.
/// </summary>
/// <param name="output">The output port of the connection.</param>
/// <param name="input">The input port of the connection.</param>
/// <param name="inputComponent">The managed instance of the component we are connecting to.</param>
/// <param name="useCallback">When set to true, enable the connection callback delegate (adversely affects performance).</param>
/// <returns>A new managed connection object.</returns>
internal static MMALConnectionImpl CreateConnection(IOutputPort output, IInputPort input, IDownstreamComponent inputComponent, bool useCallback)
{
IntPtr ptr = IntPtr.Zero;
if (useCallback)
{
MMALCheck(MMALConnection.mmal_connection_create(&ptr, output.Ptr, input.Ptr, MMALConnection.MMAL_CONNECTION_FLAG_ALLOCATION_ON_INPUT), "Unable to create connection");
}
else
{
MMALCheck(MMALConnection.mmal_connection_create(&ptr, output.Ptr, input.Ptr, MMALConnection.MMAL_CONNECTION_FLAG_TUNNELLING | MMALConnection.MMAL_CONNECTION_FLAG_ALLOCATION_ON_INPUT), "Unable to create connection");
}
return(new MMALConnectionImpl((MMAL_CONNECTION_T *)ptr, output, input, inputComponent, output.ComponentReference, useCallback));
}
