1 /*****************************************************************************
2 * common.h: common definitions
3 * Collection of useful common types and macros definitions
4 *****************************************************************************
5 * Copyright (C) 1998, 1999, 2000 VideoLAN
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
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 General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
27 *****************************************************************************/
29 /*****************************************************************************
30 * Basic types definitions
31 *****************************************************************************/
33 #include "int_types.h"
38 typedef int boolean_t;
40 #define _MACH_I386_BOOLEAN_H_
43 /* Counter for statistics and profiling */
44 typedef unsigned long count_t;
46 /*****************************************************************************
48 *****************************************************************************/
53 struct intf_console_s;
55 struct intf_channel_s;
57 typedef struct intf_thread_s * p_intf_thread_t;
58 typedef struct intf_sys_s * p_intf_sys_t;
59 typedef struct intf_console_s * p_intf_console_t;
60 typedef struct intf_msg_s * p_intf_msg_t;
61 typedef struct intf_channel_s * p_intf_channel_t;
64 struct input_thread_s;
68 typedef struct input_thread_s * p_input_thread_t;
69 typedef struct input_vlan_s * p_input_vlan_t;
70 typedef struct input_cfg_s * p_input_cfg_t;
76 typedef struct aout_thread_s * p_aout_thread_t;
77 typedef struct aout_sys_s * p_aout_sys_t;
85 struct video_parser_s;
87 typedef struct vout_thread_s * p_vout_thread_t;
88 typedef struct vout_font_s * p_vout_font_t;
89 typedef struct vout_sys_s * p_vout_sys_t;
90 typedef struct vdec_thread_s * p_vdec_thread_t;
91 typedef struct vpar_thread_s * p_vpar_thread_t;
92 typedef struct video_parser_s * p_video_parser_t;
94 /*****************************************************************************
95 * Macros and inline functions
96 *****************************************************************************/
98 /* CEIL: division with round to nearest greater integer */
99 #define CEIL(n, d) ( ((n) / (d)) + ( ((n) % (d)) ? 1 : 0) )
101 /* PAD: PAD(n, d) = CEIL(n ,d) * d */
102 #define PAD(n, d) ( ((n) % (d)) ? ((((n) / (d)) + 1) * (d)) : (n) )
104 /* MAX and MIN: self explanatory */
106 #define MAX(a, b) ( ((a) > (b)) ? (a) : (b) )
109 #define MIN(a, b) ( ((a) < (b)) ? (a) : (b) )
112 /* MSB (big endian)/LSB (little endian) convertions - network order is always
113 * MSB, and should be used for both network communications and files. Note that
114 * byte orders other than little and big endians are not supported, but only
115 * the VAX seems to have such exotic properties - note that these 'functions'
116 * needs <netinet/in.h> or the local equivalent. */
117 /* FIXME??: hton64 should be declared as an extern inline function to avoid border
118 * effects (see byteorder.h) */
119 #if __BYTE_ORDER == __LITTLE_ENDIAN
122 #define hton64(i) ( ((u64)(htonl((i) & 0xffffffff)) << 32) | htonl(((i) >> 32) & 0xffffffff ) )
125 #define ntoh64 hton64
126 #elif __BYTE_ORDER == __BIG_ENDIAN
129 #define hton64(i) ( i )
132 #define ntoh64(i) ( i )
134 /* XXX??: cause a compilation error */
137 /* Macros used by input to access the TS buffer */
138 #define U32_AT(p) ( ntohl ( *( (u32 *)(p) ) ) )
139 #define U16_AT(p) ( ntohs ( *( (u16 *)(p) ) ) )