modules/codec/spudec/spudec.h

   1 /*****************************************************************************
   2  * spudec.h : sub picture unit decoder thread interface
   3  *****************************************************************************
   4  * Copyright (C) 1999, 2000, 2006 VLC authors and VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Sam Hocevar <sam@zoy.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU Lesser General Public License as published by
  11  * the Free Software Foundation; either version 2.1 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public License
  20  * along with this program; if not, write to the Free Software Foundation,
  21  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 /* #define DEBUG_SPUDEC 1 */
  25
  26 typedef struct
  27 {
  28     bool b_packetizer;
  29     bool b_disabletrans;
  30
  31     vlc_tick_t i_pts;
  32     unsigned int i_spu_size;
  33     unsigned int i_rle_size;
  34     unsigned int i_spu;
  35
  36     block_t *p_block;
  37
  38     /* We will never overflow */
  39     uint8_t buffer[65536];
  40 } decoder_sys_t;
  41
  42 /*****************************************************************************
  43  * Amount of bytes we GetChunk() in one go
  44  *****************************************************************************/
  45 #define SPU_CHUNK_SIZE              0x200
  46
  47 /*****************************************************************************
  48  * SPU commands
  49  *****************************************************************************/
  50 #define SPU_CMD_FORCE_DISPLAY       0x00
  51 #define SPU_CMD_START_DISPLAY       0x01
  52 #define SPU_CMD_STOP_DISPLAY        0x02
  53 #define SPU_CMD_SET_PALETTE         0x03
  54 #define SPU_CMD_SET_ALPHACHANNEL    0x04
  55 #define SPU_CMD_SET_COORDINATES     0x05
  56 #define SPU_CMD_SET_OFFSETS         0x06
  57 #define SPU_CMD_END                 0xff
  58
  59 /*****************************************************************************
  60  * Prototypes
  61  *****************************************************************************/
  62 subpicture_t * ParsePacket( decoder_t * );