1 /*****************************************************************************
2 * input_info.c: Convenient functions to handle the input info structures
3 *****************************************************************************
4 * Copyright (C) 1998-2001 VideoLAN
5 * $Id: input_info.c,v 1.6 2002/10/10 22:46:20 massiot Exp $
7 * Authors: Sigmund Augdal <sigmunau@idi.ntnu.no>
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 /*****************************************************************************
26 *****************************************************************************/
28 #include <sys/types.h>
35 #include "stream_control.h"
36 #include "input_ext-intf.h"
37 #include "interface.h"
40 * \brief Find info category by name.
42 * Returns a pointer to the info category with the given name, and
43 * creates it if necessary
45 * \param p_input pointer to the input thread in which the info is to be found
46 * \param psz_name the name of the category to be found
47 * \returns a pointer to the category with the given name
49 input_info_category_t * input_InfoCategory( input_thread_t * p_input,
52 input_info_category_t * p_category, * p_prev;
54 for ( p_category = p_input->stream.p_info;
55 (p_category != NULL) && strcmp( p_category->psz_name, psz_name );
56 p_category = p_category->p_next)
66 p_category = malloc( sizeof( input_info_category_t ) );
69 msg_Err( p_input, "No mem" );
72 p_category->psz_name = strdup( psz_name );
73 p_category->p_next = NULL;
74 p_category->p_info = NULL;
75 p_prev->p_next = p_category;
81 * \brief Add a info item to a category
83 * \param p_category Pointer to the category to put this info in
84 * \param psz_name Name of the info item to add
85 * \param psz_format printf style format string for the value.
86 * \return a negative number on error. 0 on success.
88 int input_AddInfo( input_info_category_t * p_category, char * psz_name,
89 char * psz_format, ...)
91 input_info_t * p_info, * p_prev;
92 char * psz_str = NULL;
101 va_start( args, psz_format );
104 * Convert message to string
106 #if defined(HAVE_VASPRINTF) && !defined(SYS_DARWIN)
107 vasprintf( &psz_str, psz_format, args );
109 psz_str = (char*) malloc( strlen(psz_format) + INTF_MAX_MSG_SIZE );
110 if( psz_str == NULL )
115 vsprintf( psz_str, psz_format, args );
119 p_info = p_category->p_info;
123 p_info = p_info->p_next;
125 p_info = malloc( sizeof( input_info_t ) );
130 p_info->psz_name = strdup( psz_name );
131 p_info->psz_value = psz_str;
132 p_info->p_next = NULL;
135 p_prev->p_next = p_info;
139 p_category->p_info = p_info;
145 * \brief Destroy info structures
148 * \param p_input The input thread to be cleaned for info
149 * \returns for the moment 0
151 int input_DelInfo( input_thread_t * p_input )
153 input_info_category_t * p_category, * p_prev_category;
154 input_info_t * p_info, * p_prev_info;
156 p_category = p_input->stream.p_info;
159 p_info = p_category->p_info;
162 if ( p_info->psz_name )
164 free( p_info->psz_name );
166 if ( p_info->psz_value )
168 free( p_info->psz_value );
170 p_prev_info = p_info;
171 p_info = p_info->p_next;
174 if ( p_category->psz_name )
176 free( p_category->psz_name );
178 p_prev_category = p_category;
179 p_category = p_category->p_next;
180 free( p_prev_category );