1 /*****************************************************************************
2 * common.h: common definitions
3 * Collection of useful common types and macros definitions
4 *****************************************************************************
5 * Copyright (C) 1998, 1999, 2000 VideoLAN
7 * Authors: Samuel Hocevar <sam@via.ecp.fr>
8 * Vincent Seguin <seguin@via.ecp.fr>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
23 *****************************************************************************/
25 /*****************************************************************************
28 *****************************************************************************/
30 /*****************************************************************************
31 * Basic types definitions
32 *****************************************************************************/
34 #include "int_types.h"
39 typedef int boolean_t;
41 #define _MACH_I386_BOOLEAN_H_
44 /* Counter for statistics and profiling */
45 typedef unsigned long count_t;
47 /*****************************************************************************
49 *****************************************************************************/
55 typedef struct plugin_bank_s * p_plugin_bank_t;
56 typedef struct plugin_info_s * p_plugin_info_t;
61 typedef struct playlist_s * p_playlist_t;
66 struct intf_console_s;
68 struct intf_channel_s;
70 typedef struct intf_thread_s * p_intf_thread_t;
71 typedef struct intf_sys_s * p_intf_sys_t;
72 typedef struct intf_console_s * p_intf_console_t;
73 typedef struct intf_msg_s * p_intf_msg_t;
74 typedef struct intf_channel_s * p_intf_channel_t;
77 struct input_thread_s;
81 typedef struct input_thread_s * p_input_thread_t;
82 typedef struct input_vlan_s * p_input_vlan_t;
83 typedef struct input_cfg_s * p_input_cfg_t;
89 typedef struct aout_thread_s * p_aout_thread_t;
90 typedef struct aout_sys_s * p_aout_sys_t;
98 struct video_parser_s;
100 typedef struct vout_thread_s * p_vout_thread_t;
101 typedef struct vout_font_s * p_vout_font_t;
102 typedef struct vout_sys_s * p_vout_sys_t;
103 typedef struct vdec_thread_s * p_vdec_thread_t;
104 typedef struct vpar_thread_s * p_vpar_thread_t;
105 typedef struct video_parser_s * p_video_parser_t;
107 /*****************************************************************************
108 * Macros and inline functions
109 *****************************************************************************/
111 /* CEIL: division with round to nearest greater integer */
112 #define CEIL(n, d) ( ((n) / (d)) + ( ((n) % (d)) ? 1 : 0) )
114 /* PAD: PAD(n, d) = CEIL(n ,d) * d */
115 #define PAD(n, d) ( ((n) % (d)) ? ((((n) / (d)) + 1) * (d)) : (n) )
117 /* MAX and MIN: self explanatory */
119 #define MAX(a, b) ( ((a) > (b)) ? (a) : (b) )
122 #define MIN(a, b) ( ((a) < (b)) ? (a) : (b) )
125 /* MSB (big endian)/LSB (little endian) convertions - network order is always
126 * MSB, and should be used for both network communications and files. Note that
127 * byte orders other than little and big endians are not supported, but only
128 * the VAX seems to have such exotic properties - note that these 'functions'
129 * needs <netinet/in.h> or the local equivalent. */
130 /* FIXME??: hton64 should be declared as an extern inline function to avoid border
131 * effects (see byteorder.h) */
132 #if __BYTE_ORDER == __LITTLE_ENDIAN
135 #define hton64(i) ( ((u64)(htonl((i) & 0xffffffff)) << 32) | htonl(((i) >> 32) & 0xffffffff ) )
138 #define ntoh64 hton64
139 #elif __BYTE_ORDER == __BIG_ENDIAN
142 #define hton64(i) ( i )
145 #define ntoh64(i) ( i )
147 /* XXX??: cause a compilation error */
150 /* Macros used by input to access the TS buffer */
151 #define U32_AT(p) ( ntohl ( *( (u32 *)(p) ) ) )
152 #define U16_AT(p) ( ntohs ( *( (u16 *)(p) ) ) )