modules/codec/cea708.h

   1 /*****************************************************************************
   2  * cea708.h : CEA708 subtitles decoder
   3  *****************************************************************************
   4  * Copyright © 2017 Videolabs, VideoLAN and VLC authors
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU Lesser General Public License as published by
   8  * the Free Software Foundation; either version 2.1 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14  * GNU Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public License
  17  * along with this program; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  19  *****************************************************************************/
  20 #ifndef VLC_CEA708_H_
  21 #define VLC_CEA708_H_
  22
  23 typedef void(*service_data_hdlr_t)(void *, uint8_t i_sid, mtime_t,
  24                                    const uint8_t *p_data, size_t i_data);
  25
  26 /* DVTCC Services demuxing */
  27 #define CEA708_DTVCC_MAX_PKT_SIZE 128
  28 typedef struct cea708_demux_t cea708_demux_t;
  29
  30 cea708_demux_t * CEA708_DTVCC_Demuxer_New( void *, service_data_hdlr_t );
  31 void CEA708_DTVCC_Demuxer_Release( cea708_demux_t * );
  32 void CEA708_DTVCC_Demuxer_Push( cea708_demux_t *h, mtime_t, const uint8_t data[3] );
  33 void CEA708_DTVCC_Demuxer_Flush( cea708_demux_t *h );
  34
  35 /* DVTCC Services decoding */
  36 typedef struct cea708_t cea708_t;
  37
  38 cea708_t *CEA708_Decoder_New( decoder_t * );
  39 void CEA708_Decoder_Release( cea708_t *p_cea708 );
  40 void CEA708_Decoder_Push( cea708_t *p_cea708, mtime_t,
  41                           const uint8_t *p_data, size_t i_data );
  42 void CEA708_Decoder_Flush( cea708_t *p_cea708 );
  43
  44 #endif