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[vlc] / modules / misc / playlist / m3u.c
1 /*****************************************************************************
2  * m3u.c : M3U playlist export module
3  *****************************************************************************
4  * Copyright (C) 2004-2009 the VideoLAN team
5  * $Id$
6  *
7  * Authors: ClĂ©ment Stenac <zorglub@videolan.org>
8  *
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.
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 General Public License for more details.
18  *
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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22  *****************************************************************************/
23
24 /*****************************************************************************
25  * Preamble
26  *****************************************************************************/
27
28 #ifdef HAVE_CONFIG_H
29 # include "config.h"
30 #endif
31
32 #include <vlc_common.h>
33 #include <vlc_playlist.h>
34 #include <vlc_input.h>
35 #include <vlc_meta.h>
36 #include <vlc_charset.h>
37
38 #include <assert.h>
39
40 /*****************************************************************************
41  * Local prototypes
42  *****************************************************************************/
43 int Export_M3U ( vlc_object_t * );
44 int Export_M3U8( vlc_object_t * );
45
46 /*****************************************************************************
47  * Export_M3U: main export function
48  *****************************************************************************/
49 static void DoChildren( playlist_export_t *p_export, playlist_item_t *p_root,
50                         int (*pf_fprintf) (FILE *, const char *, ...) )
51 {
52     int i, j;
53
54     /* Go through the playlist and add items */
55     for( i = 0; i< p_root->i_children ; i++)
56     {
57         playlist_item_t *p_current = p_root->pp_children[i];
58         assert( p_current );
59
60         if( p_current->i_flags & PLAYLIST_SAVE_FLAG )
61             continue;
62
63         if( p_current->i_children >= 0 )
64         {
65             DoChildren( p_export, p_current, pf_fprintf );
66             continue;
67         }
68
69         /* General info */
70
71         char *psz_uri = input_item_GetURI( p_current->p_input );
72
73         assert( psz_uri );
74
75         char *psz_name = input_item_GetName( p_current->p_input );
76         if( psz_name && strcmp( psz_uri, psz_name ) )
77         {
78             char *psz_artist = input_item_GetArtist( p_current->p_input );
79             if( psz_artist == NULL ) psz_artist = strdup( "" );
80             mtime_t i_duration = input_item_GetDuration( p_current->p_input );
81             if( psz_artist && *psz_artist )
82             {
83                 /* write EXTINF with artist */
84                 pf_fprintf( p_export->p_file, "#EXTINF:%"PRIu64",%s - %s\n",
85                             i_duration / CLOCK_FREQ, psz_artist, psz_name);
86             }
87             else
88             {
89                 /* write EXTINF without artist */
90                 pf_fprintf( p_export->p_file, "#EXTINF:%"PRIu64",%s\n",
91                             i_duration / CLOCK_FREQ, psz_name);
92             }
93             free( psz_artist );
94         }
95         free( psz_name );
96
97         /* VLC specific options */
98         vlc_mutex_lock( &p_current->p_input->lock );
99         for( j = 0; j < p_current->p_input->i_options; j++ )
100         {
101             pf_fprintf( p_export->p_file, "#EXTVLCOPT:%s\n",
102                         p_current->p_input->ppsz_options[j][0] == ':' ?
103                         p_current->p_input->ppsz_options[j] + 1 :
104                         p_current->p_input->ppsz_options[j] );
105         }
106         vlc_mutex_unlock( &p_current->p_input->lock );
107
108         fprintf( p_export->p_file, "%s\n", psz_uri );
109         free( psz_uri );
110     }
111 }
112
113 int Export_M3U( vlc_object_t *p_this )
114 {
115     playlist_export_t *p_export = (playlist_export_t *)p_this;
116
117     msg_Dbg( p_export, "saving using M3U format");
118
119     /* Write header */
120     fputs( "#EXTM3U\n", p_export->p_file );
121
122     DoChildren( p_export, p_export->p_root, utf8_fprintf );
123     return VLC_SUCCESS;
124 }
125
126 int Export_M3U8( vlc_object_t *p_this )
127 {
128     playlist_export_t *p_export = (playlist_export_t *)p_this;
129
130     msg_Dbg( p_export, "saving using M3U8 format");
131
132     /* Write header */
133     fputs( "#EXTM3U\n", p_export->p_file );
134
135     DoChildren( p_export, p_export->p_root, fprintf );
136     return VLC_SUCCESS;
137 }