dr_4e.h

Dvbstreamer 用在解析MPTS的部分内容

/*****************************************************************************
 * dr_4e.h
 * (c)2005 VideoLAN
 * $Id: dr_4d.h,v 1.3 2002/05/10 23:50:36 bozo Exp $
 *
 * Authors: Laurent Aimar <[e-mail]>
 *
 * 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 2
 * of the License, 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 *****************************************************************************/

/*!
 * \file <dr_4e.h>
 * \author Laurent Aimar <[e-mail]>
 * \brief Application interface for the "Extended event" descriptor
 * decoder and generator.
 *
 * Application interface for the "Extended event" descriptor
 * decoder and generator. This descriptor's definition can be found in
 * ETSI EN 300 468 section 6.2.15.
 */

#ifndef _DVBPSI_DR_4E_H_
#define _DVBPSI_DR_4E_H_

#ifdef __cplusplus
extern "C" {
#endif


/*****************************************************************************
 * dvbpsi_extended_event_dr_t
 *****************************************************************************/
/*!
 * \struct dvbpsi_short_event_dr_s
 * \brief "short event" descriptor structure.
 *
 * This structure is used to store a decoded "short event" descriptor.
 */
/*!
 * \typedef struct dvbpsi_short_event_dr_s dvbpsi_extended_event_dr_t
 * \brief dvbpsi_extended_event_dr_t type definition.
 */
typedef struct dvbpsi_extended_event_dr_s
{
  uint8_t i_descriptor_number;
  uint8_t i_last_descriptor_number;

  uint8_t i_iso_639_code[3];

  int     i_entry_count;
  uint8_t i_item_description_length[126];
  uint8_t *i_item_description[126];
  uint8_t i_item_length[126];
  uint8_t *i_item[126];

  int     i_text_length;
  uint8_t *i_text;

  uint8_t i_buffer[256];    /* do not use */
} dvbpsi_extended_event_dr_t;


/*****************************************************************************
 * dvbpsi_DecodeExtendedEventDr
 *****************************************************************************/
/*!
 * \fn dvbpsi_extended_event_dr_t * dvbpsi_DecodeExtendedEventDr(
                                        dvbpsi_descriptor_t * p_descriptor)
 * \brief "short event" descriptor decoder.
 * \param p_descriptor pointer to the descriptor structure
 * \return a pointer to a new "short event" descriptor structure which
 * contains the decoded data.
 */
dvbpsi_extended_event_dr_t* dvbpsi_DecodeExtendedEventDr(dvbpsi_descriptor_t * p_descriptor);


/*****************************************************************************
 * dvbpsi_GenExtendedEventDr
 *****************************************************************************/
/*!
 * \fn dvbpsi_descriptor_t * dvbpsi_GenExtendedEventDr(
                        dvbpsi_extended_event_dr_t * p_decoded, int b_duplicate)
 * \brief "short event" descriptor generator.
 * \param p_decoded pointer to a decoded "video stream" descriptor structure
 * \param b_duplicate if non zero then duplicate the p_decoded structure into
 * the descriptor
 * \return a pointer to a new descriptor structure which contains encoded data.
 */
dvbpsi_descriptor_t * dvbpsi_GenExtendedEventDr(dvbpsi_extended_event_dr_t * p_decoded,
                                             int b_duplicate);


#ifdef __cplusplus
};
#endif

#endif