/*

 * This file is part of libbluray

 * Copyright (C) 2010-2013  Petri Hintukainen <phintuka@users.sourceforge.net>

 *

 * This library 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 2.1 of the License, or (at your option) any later version.

 *

 * This library 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 this library. If not, see

 * <http://www.gnu.org/licenses/>.

 */

#if !defined(_GRAPHICS_PROCESSOR_H_)

#define _GRAPHICS_PROCESSOR_H_

#include "pg.h"

#include "ig.h"

#include "textst.h"

#include "util/attributes.h"

#include <stdint.h>

typedef struct graphics_processor_s GRAPHICS_PROCESSOR;

/*

 * PG_DISPLAY_SET

 */

typedef struct {

    int64_t       valid_pts;

    uint8_t       complete;     /* set complete: last decoded segment was END_OF_DISPLAY */

    uint8_t       epoch_start;

    unsigned      num_palette;

    unsigned      num_object;

    unsigned      num_window;

    unsigned      num_dialog;    /* number of decoded dialog segments */

    unsigned      total_dialog;  /* total dialog segments in stream */

    BD_PG_PALETTE *palette;

    BD_PG_OBJECT  *object;

    BD_PG_WINDOW  *window;

    BD_TEXTST_DIALOG_PRESENTATION *dialog;

    /* only one of the following segments can be present */

    BD_IG_INTERACTIVE   *ics;

    BD_PG_COMPOSITION   *pcs;

    BD_TEXTST_DIALOG_STYLE *style;

    uint8_t decoding; /* internal flag: PCS/ICS decoded, but no end of presentation seen yet */

} PG_DISPLAY_SET;

BD_PRIVATE void pg_display_set_free(PG_DISPLAY_SET **s);

/*

 * graphics processor

 */

BD_PRIVATE GRAPHICS_PROCESSOR *graphics_processor_init(void);

BD_PRIVATE void                graphics_processor_free(GRAPHICS_PROCESSOR **p);

/**

 *

 *  Decode data from MPEG-TS input stream

 *

 *  Segments are queued and decoded when DTS <= STC.

 *  If STC < 0, all segments are immediately decoded to display set.

 *

 * @param p  GRAPHICS_PROCESSOR object

 * @param s  display set

 * @param pid  mpeg-ts PID to decode (HDMV IG/PG stream)

 * @param unit  mpeg-ts data

 * @param num_units  number of aligned units in data

 * @param stc  current playback time

 * @return 1 if display set was completed, 0 otherwise

 */

BD_PRIVATE int

graphics_processor_decode_ts(GRAPHICS_PROCESSOR *p,

                             PG_DISPLAY_SET **s,

                             uint16_t pid, uint8_t *unit, unsigned num_units,

                             int64_t stc);

#endif // _GRAPHICS_PROCESSOR_H_