00001 /***************************************************************************** 00002 * spudec.h : sub picture unit decoder thread interface 00003 ***************************************************************************** 00004 * Copyright (C) 1999, 2000, 2006 the VideoLAN team 00005 * $Id$ 00006 * 00007 * Authors: Sam Hocevar <sam@zoy.org> 00008 * 00009 * This program is free software; you can redistribute it and/or modify 00010 * it under the terms of the GNU General Public License as published by 00011 * the Free Software Foundation; either version 2 of the License, or 00012 * (at your option) any later version. 00013 * 00014 * This program is distributed in the hope that it will be useful, 00015 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00017 * GNU General Public License for more details. 00018 * 00019 * You should have received a copy of the GNU General Public License 00020 * along with this program; if not, write to the Free Software 00021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. 00022 *****************************************************************************/ 00023 00024 /* #define DEBUG_SPUDEC 1 */ 00025 00026 struct decoder_sys_t 00027 { 00028 int b_packetizer; 00029 00030 mtime_t i_pts; 00031 unsigned int i_spu_size; 00032 unsigned int i_rle_size; 00033 unsigned int i_spu; 00034 00035 block_t *p_block; 00036 00037 /* We will never overflow */ 00038 uint8_t buffer[65536]; 00039 }; 00040 00041 typedef struct subpicture_data_t 00042 { 00043 mtime_t i_pts; /* presentation timestamp */ 00044 00045 int pi_offset[2]; /* byte offsets to data */ 00046 void *p_data; 00047 00048 /* Color information */ 00049 bool b_palette; 00050 uint8_t pi_alpha[4]; 00051 uint8_t pi_yuv[4][3]; 00052 00053 /* Auto crop fullscreen subtitles */ 00054 bool b_auto_crop; 00055 int i_y_top_offset; 00056 int i_y_bottom_offset; 00057 00058 } subpicture_data_t; 00059 00060 /***************************************************************************** 00061 * Amount of bytes we GetChunk() in one go 00062 *****************************************************************************/ 00063 #define SPU_CHUNK_SIZE 0x200 00064 00065 /***************************************************************************** 00066 * SPU commands 00067 *****************************************************************************/ 00068 #define SPU_CMD_FORCE_DISPLAY 0x00 00069 #define SPU_CMD_START_DISPLAY 0x01 00070 #define SPU_CMD_STOP_DISPLAY 0x02 00071 #define SPU_CMD_SET_PALETTE 0x03 00072 #define SPU_CMD_SET_ALPHACHANNEL 0x04 00073 #define SPU_CMD_SET_COORDINATES 0x05 00074 #define SPU_CMD_SET_OFFSETS 0x06 00075 #define SPU_CMD_END 0xff 00076 00077 /***************************************************************************** 00078 * Prototypes 00079 *****************************************************************************/ 00080 subpicture_t * ParsePacket( decoder_t * );
1.5.1