1 /*****************************************************************************
2 * m3u.c : M3U playlist export module
3 *****************************************************************************
4 * Copyright (C) 2004-2009 the VideoLAN team
5 * $Id: 6a31f1463d1bb3147c113307178bc8ca0514c00d $
6 *
7 * Authors: Clément 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 #include <vlc_url.h>
38
39 #include <assert.h>
40
41 /*****************************************************************************
42 * Local prototypes
43 *****************************************************************************/
44 int Export_M3U ( vlc_object_t * );
45 int Export_M3U8( vlc_object_t * );
46
47 /*****************************************************************************
48 * Export_M3U: main export function
49 *****************************************************************************/
DoChildren(playlist_export_t * p_export,playlist_item_t * p_root,int (* pf_fprintf)(FILE *,const char *,...))50 static void DoChildren( playlist_export_t *p_export, playlist_item_t *p_root,
51 int (*pf_fprintf) (FILE *, const char *, ...) )
52 {
53 size_t prefix_len = -1;
54 if( likely(p_export->base_url != NULL) )
55 {
56 const char *p = strrchr( p_export->base_url, '/' );
57 assert(p != NULL);
58 prefix_len = (p + 1) - p_export->base_url;
59 }
60
61 /* Write header */
62 fputs( "#EXTM3U\n", p_export->p_file );
63
64 /* Go through the playlist and add items */
65 for( int i = 0; i< p_root->i_children ; i++)
66 {
67 playlist_item_t *p_current = p_root->pp_children[i];
68 assert( p_current );
69
70 if( p_current->i_children >= 0 )
71 {
72 DoChildren( p_export, p_current, pf_fprintf );
73 continue;
74 }
75
76 /* General info */
77
78 char *psz_uri = input_item_GetURI( p_current->p_input );
79
80 assert( psz_uri );
81
82 char *psz_name = input_item_GetName( p_current->p_input );
83 if( psz_name && strcmp( psz_uri, psz_name ) )
84 {
85 char *psz_artist = input_item_GetArtist( p_current->p_input );
86 if( psz_artist == NULL ) psz_artist = strdup( "" );
87 mtime_t i_duration = input_item_GetDuration( p_current->p_input );
88 if( psz_artist && *psz_artist )
89 {
90 /* write EXTINF with artist */
91 pf_fprintf( p_export->p_file, "#EXTINF:%"PRIu64",%s - %s\n",
92 i_duration / CLOCK_FREQ, psz_artist, psz_name);
93 }
94 else
95 {
96 /* write EXTINF without artist */
97 pf_fprintf( p_export->p_file, "#EXTINF:%"PRIu64",%s\n",
98 i_duration / CLOCK_FREQ, psz_name);
99 }
100 free( psz_artist );
101 }
102 free( psz_name );
103
104 /* VLC specific options */
105 vlc_mutex_lock( &p_current->p_input->lock );
106 for( int j = 0; j < p_current->p_input->i_options; j++ )
107 {
108 pf_fprintf( p_export->p_file, "#EXTVLCOPT:%s\n",
109 p_current->p_input->ppsz_options[j][0] == ':' ?
110 p_current->p_input->ppsz_options[j] + 1 :
111 p_current->p_input->ppsz_options[j] );
112 }
113 vlc_mutex_unlock( &p_current->p_input->lock );
114
115 /* We cannot really know if relative or absolute URL is better. As a
116 * heuristic, we write a relative URL if the item is in the same
117 * directory as the playlist, or a sub-directory thereof. */
118 size_t skip = 0;
119 if( likely(prefix_len != (size_t)-1)
120 && !strncmp( p_export->base_url, psz_uri, prefix_len ) )
121 skip = prefix_len;
122
123 fprintf( p_export->p_file, "%s\n", psz_uri + skip );
124 free( psz_uri );
125 }
126 }
127
Export_M3U(vlc_object_t * p_this)128 int Export_M3U( vlc_object_t *p_this )
129 {
130 playlist_export_t *p_export = (playlist_export_t *)p_this;
131
132 msg_Dbg( p_export, "saving using M3U format");
133
134 DoChildren( p_export, p_export->p_root, utf8_fprintf );
135 return VLC_SUCCESS;
136 }
137
Export_M3U8(vlc_object_t * p_this)138 int Export_M3U8( vlc_object_t *p_this )
139 {
140 playlist_export_t *p_export = (playlist_export_t *)p_this;
141
142 msg_Dbg( p_export, "saving using M3U8 format");
143
144 DoChildren( p_export, p_export->p_root, fprintf );
145 return VLC_SUCCESS;
146 }
147