/*
 * This file is part of gtkD.
 *
 * gtkD is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version, with
 * some exceptions, please read the COPYING file.
 *
 * gtkD is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with gtkD; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
 */
 
// generated automatically - do not change
// find conversion definition on APILookup.txt
// implement new conversion functionalities on the wrap.utils pakage

/*
 * Conversion parameters:
 * inFile  = GstPipeline.html
 * outPack = gstreamer
 * outFile = Pipeline
 * strct   = GstPipeline
 * realStrct=
 * ctorStrct=GstElement
 * clss    = Pipeline
 * interf  = 
 * class Code: No
 * interface Code: No
 * template for:
 * extend  = 
 * implements:
 * prefixes:
 * 	- gst_pipeline_
 * omit structs:
 * omit prefixes:
 * omit code:
 * omit signals:
 * imports:
 * 	- glib.Str
 * 	- gstreamer.Bus
 * 	- gstreamer.Clock
 * structWrap:
 * 	- GstBus* -> Bus
 * 	- GstClock* -> Clock
 * module aliases:
 * local aliases:
 * overrides:
 * 	- getBus
 * 	- setClock
 * 	- getClock
 */

module gstreamer.Pipeline;

public  import gstreamerc.gstreamertypes;

private import gstreamerc.gstreamer;
private import glib.ConstructionException;
private import gobject.ObjectG;


private import glib.Str;
private import gstreamer.Bus;
private import gstreamer.Clock;



private import gstreamer.Bin;

/**
 * A GstPipeline is a special GstBin used as the toplevel container for
 * the filter graph. The GstPipeline will manage the selection and
 * distribution of a global GstClock as well as provide a GstBus to the
 * application.
 *
 * gst_pipeline_new() is used to create a pipeline. when you are done with
 * the pipeline, use gst_object_unref() to free its resources including all
 * added GstElement objects (if not otherwise referenced).
 *
 * Elements are added and removed from the pipeline using the GstBin
 * methods like gst_bin_add() and gst_bin_remove() (see GstBin).
 *
 * Before changing the state of the GstPipeline (see GstElement) a GstBus
 * can be retrieved with gst_pipeline_get_bus(). This bus can then be
 * used to receive GstMessage from the elements in the pipeline.
 *
 * By default, a GstPipeline will automatically flush the pending GstBus
 * messages when going to the NULL state to ensure that no circular
 * references exist when no messages are read from the GstBus. This
 * behaviour can be changed with gst_pipeline_set_auto_flush_bus().
 *
 * When the GstPipeline performs the PAUSED to PLAYING state change it will
 * select a clock for the elements. The clock selection algorithm will by
 * default select a clock provided by an element that is most upstream
 * (closest to the source). For live pipelines (ones that return
 * GST_STATE_CHANGE_NO_PREROLL from the gst_element_set_state() call) this
 * will select the clock provided by the live source. For normal pipelines
 * this will select a clock provided by the sinks (most likely the audio
 * sink). If no element provides a clock, a default GstSystemClock is used.
 *
 * The clock selection can be controlled with the gst_pipeline_use_clock()
 * method, which will enforce a given clock on the pipeline. With
 * gst_pipeline_auto_clock() the default clock selection algorithm can be
 * restored.
 *
 * A GstPipeline maintains a running time for the elements. The running
 * time is defined as the difference between the current clock time and
 * the base time. When the pipeline goes to READY or a flushing seek is
 * performed on it, the running time is reset to 0. When the pipeline is
 * set from PLAYING to PAUSED, the current clock time is sampled and used to
 * configure the base time for the elements when the pipeline is set
 * to PLAYING again. The effect is that the running time (as the difference
 * between the clock time and the base time) will count how much time was spent
 * in the PLAYING state. This default behaviour can be changed with the
 * gst_element_set_start_time() method.
 *
 * Last reviewed on 2012-03-29 (0.11.3)
 */
public class Pipeline : Bin
{
	
	/** the main Gtk struct */
	protected GstPipeline* gstPipeline;
	
	
	public GstPipeline* getPipelineStruct()
	{
		return gstPipeline;
	}
	
	
	/** the main Gtk struct as a void* */
	protected override void* getStruct()
	{
		return cast(void*)gstPipeline;
	}
	
	/**
	 * Sets our main struct and passes it to the parent class
	 */
	public this (GstPipeline* gstPipeline)
	{
		super(cast(GstBin*)gstPipeline);
		this.gstPipeline = gstPipeline;
	}
	
	protected override void setStruct(GObject* obj)
	{
		super.setStruct(obj);
		gstPipeline = cast(GstPipeline*)obj;
	}
	
	/**
	 */
	
	/**
	 * Create a new pipeline with the given name.
	 * Params:
	 * name = name of new pipeline. [allow-none]
	 * Throws: ConstructionException GTK+ fails to create the object.
	 */
	public this (string name)
	{
		// GstElement * gst_pipeline_new (const gchar *name);
		auto p = gst_pipeline_new(Str.toStringz(name));
		if(p is null)
		{
			throw new ConstructionException("null returned by gst_pipeline_new(Str.toStringz(name))");
		}
		this(cast(GstPipeline*) p);
	}
	
	/**
	 * Gets the GstBus of pipeline. The bus allows applications to receive
	 * GstMessage packets.
	 * Returns: a GstBus, unref after usage. MT safe. [transfer full]
	 */
	public override Bus getBus()
	{
		// GstBus * gst_pipeline_get_bus (GstPipeline *pipeline);
		auto p = gst_pipeline_get_bus(gstPipeline);
		
		if(p is null)
		{
			return null;
		}
		
		return ObjectG.getDObject!(Bus)(cast(GstBus*) p);
	}
	
	/**
	 * Set the clock for pipeline. The clock will be distributed
	 * to all the elements managed by the pipeline.
	 * Params:
	 * clock = the clock to set. [transfer none]
	 * Returns: TRUE if the clock could be set on the pipeline. FALSE if some element did not accept the clock. MT safe.
	 */
	public override int setClock(Clock clock)
	{
		// gboolean gst_pipeline_set_clock (GstPipeline *pipeline,  GstClock *clock);
		return gst_pipeline_set_clock(gstPipeline, (clock is null) ? null : clock.getClockStruct());
	}
	
	/**
	 * Gets the current clock used by pipeline.
	 * Returns: a GstClock, unref after usage. [transfer full]
	 */
	public override Clock getClock()
	{
		// GstClock * gst_pipeline_get_clock (GstPipeline *pipeline);
		auto p = gst_pipeline_get_clock(gstPipeline);
		
		if(p is null)
		{
			return null;
		}
		
		return ObjectG.getDObject!(Clock)(cast(GstClock*) p);
	}
	
	/**
	 * Force pipeline to use the given clock. The pipeline will
	 * always use the given clock even if new clock providers are added
	 * to this pipeline.
	 * If clock is NULL all clocking will be disabled which will make
	 * the pipeline run as fast as possible.
	 * MT safe.
	 * Params:
	 * clock = the clock to use. [transfer none][allow-none]
	 */
	public void useClock(Clock clock)
	{
		// void gst_pipeline_use_clock (GstPipeline *pipeline,  GstClock *clock);
		gst_pipeline_use_clock(gstPipeline, (clock is null) ? null : clock.getClockStruct());
	}
	
	/**
	 * Let pipeline select a clock automatically. This is the default
	 * behaviour.
	 * Use this function if you previous forced a fixed clock with
	 * gst_pipeline_use_clock() and want to restore the default
	 * pipeline clock selection algorithm.
	 * MT safe.
	 */
	public void autoClock()
	{
		// void gst_pipeline_auto_clock (GstPipeline *pipeline);
		gst_pipeline_auto_clock(gstPipeline);
	}
	
	/**
	 * Usually, when a pipeline goes from READY to NULL state, it automatically
	 * flushes all pending messages on the bus, which is done for refcounting
	 * purposes, to break circular references.
	 * This means that applications that update state using (async) bus messages
	 * (e.g. do certain things when a pipeline goes from PAUSED to READY) might
	 * not get to see messages when the pipeline is shut down, because they might
	 * be flushed before they can be dispatched in the main thread. This behaviour
	 * can be disabled using this function.
	 * It is important that all messages on the bus are handled when the
	 * automatic flushing is disabled else memory leaks will be introduced.
	 * MT safe.
	 * Params:
	 * autoFlush = whether or not to automatically flush the bus when
	 * the pipeline goes from READY to NULL state
	 */
	public void setAutoFlushBus(int autoFlush)
	{
		// void gst_pipeline_set_auto_flush_bus (GstPipeline *pipeline,  gboolean auto_flush);
		gst_pipeline_set_auto_flush_bus(gstPipeline, autoFlush);
	}
	
	/**
	 * Check if pipeline will automatically flush messages when going to
	 * the NULL state.
	 * Returns: whether the pipeline will automatically flush its bus when going from READY to NULL state or not. MT safe.
	 */
	public int getAutoFlushBus()
	{
		// gboolean gst_pipeline_get_auto_flush_bus (GstPipeline *pipeline);
		return gst_pipeline_get_auto_flush_bus(gstPipeline);
	}
	
	/**
	 * Set the expected delay needed for all elements to perform the
	 * PAUSED to PLAYING state change. delay will be added to the
	 * base time of the elements so that they wait an additional delay
	 * amount of time before starting to process buffers and cannot be
	 * GST_CLOCK_TIME_NONE.
	 * This option is used for tuning purposes and should normally not be
	 * used.
	 * MT safe.
	 * Params:
	 * delay = the delay
	 */
	public void setDelay(GstClockTime delay)
	{
		// void gst_pipeline_set_delay (GstPipeline *pipeline,  GstClockTime delay);
		gst_pipeline_set_delay(gstPipeline, delay);
	}
	
	/**
	 * Get the configured delay (see gst_pipeline_set_delay()).
	 * Returns: The configured delay. MT safe.
	 */
	public GstClockTime getDelay()
	{
		// GstClockTime gst_pipeline_get_delay (GstPipeline *pipeline);
		return gst_pipeline_get_delay(gstPipeline);
	}
}