/***************************************************************************

  c_media.h

  gb.media component

  (c) 2000-2017 Benoît Minisini <benoit.minisini@gambas-basic.org>

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 1, or (at your option)
  any later version.

  This program 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 General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  MA 02110-1301, USA.

***************************************************************************/

#ifndef __C_MEDIA_H
#define __C_MEDIA_H

#include "main.h"

#ifndef __C_MEDIA_C

//extern GB_DESC MediaSignalArgumentsDesc[];
extern GB_DESC MediaTagListDesc[];
extern GB_DESC MediaMessageDesc[];
extern GB_DESC MediaLinkDesc[];
extern GB_DESC MediaTypeDesc[];
extern GB_DESC MediaControlDesc[];
extern GB_DESC MediaFilterDesc[];
extern GB_DESC MediaContainerChildrenDesc[];
extern GB_DESC MediaContainerDesc[];
extern GB_DESC MediaPipelineDesc[];
extern GB_DESC MediaDesc[];

#else

#define THIS ((CMEDIACONTROL *)_object)
#define THIS_ARG ((CMEDIASIGNALARGUMENTS *)_object)
#define ELEMENT THIS->elt
#define PIPELINE ((GstPipeline *)THIS->elt)

#define THIS_TAGLIST ((CMEDIATAGLIST *)_object)
#define THIS_MESSAGE ((CMEDIAMESSAGE *)_object)
#define THIS_PIPELINE ((CMEDIAPIPELINE *)_object)

#define THIS_LINK ((CMEDIALINK *)_object)
#define LINK THIS_LINK->pad

#define THIS_TYPE ((CMEDIATYPE *)_object)

#define THIS_CONTAINER ((CMEDIACONTAINER *)_object)

#endif

typedef
	struct {
		GB_BASE ob;
		GstElementFactory *factory;
	}
	CMEDIATYPE;

typedef
	struct {
		GB_BASE ob;
		GstPad *pad;
	}
	CMEDIALINK;

typedef
	struct {
		uintptr_t surface;
		int x, y, w, h;
	}
	CMEDIAOVERLAY;

typedef
	struct {
		GB_BASE ob;
		GstElement *elt;
		void **dest;
		CMEDIAOVERLAY *overlay;
		GB_VARIANT_VALUE tag;
		unsigned state : 3;
		unsigned error : 1;
		unsigned borrow : 1;
		unsigned eos : 1;
	}
	CMEDIACONTROL;

typedef
	struct {
		CMEDIACONTROL control;
		CMEDIACONTROL **children;
	}
	CMEDIACONTAINER;

typedef
	struct {
		CMEDIACONTAINER container;
		GB_TIMER *watch;
		int polling;
		gint64 pos;
		gint64 duration;
		double rate;
		double next_rate;
		char buffering;
		unsigned in_message : 1;
		unsigned about_to_finish : 1;
	}
	CMEDIAPIPELINE;

typedef
	struct {
		GB_BASE ob;
		GstTagList *tags;
	}
	CMEDIATAGLIST;
	
typedef
	struct {
		GB_BASE ob;
		GstMessage *message;
		const GstStructure *structure;
		const char *lastKey;
	}
	CMEDIAMESSAGE;
	
#if 0
typedef
	struct {
		GB_BASE ob;
		guint n_param_values;
		const GValue *param_values;
	}
	CMEDIASIGNALARGUMENTS;
#endif
	
#define TO_SECOND(_time) ((double)((_time) / 1000) / 1E6)
#define TO_TIME(_second) ((gint64)((_second) * 1E9))
	
void MEDIA_raise_event(void *_object, int event);
CMEDIACONTROL *MEDIA_get_control_from_element(void *element, bool create);
bool MEDIA_set_state(void *_object, int state, bool error, bool async);

bool MEDIA_get_flag(void *element, char *property, int flag);
void MEDIA_set_flag(void *element, char *property, int flag, bool value);

void MEDIA_set_property(void *_object, const char *property, GB_VALUE *v);

GB_IMG *MEDIA_get_image_from_sample(GstSample *sample, bool convert);

void MEDIA_stop_pipeline(CMEDIACONTROL *_object);

#endif /* __C_MEDIA_H */
