loadsave.c 5.44 KB
Newer Older
1 2 3
/*****************************************************************************
 * loadsave.c : Playlist loading / saving functions
 *****************************************************************************
4
 * Copyright (C) 1999-2004 the VideoLAN team
zorglub's avatar
zorglub committed
5
 * $Id$
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
 *
 * Authors: Samuel Hocevar <sam@zoy.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
dionoea's avatar
dionoea committed
21
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 23 24 25
 *****************************************************************************/
#include <stdlib.h>                                      /* free(), strtol() */
#include <stdio.h>                                              /* sprintf() */
#include <string.h>                                            /* strerror() */
26
#include <errno.h>
27 28 29 30

#include <vlc/vlc.h>
#include <vlc/vout.h>
#include <vlc/sout.h>
Laurent Aimar's avatar
Laurent Aimar committed
31
#include <vlc/input.h>
32 33

#include "vlc_playlist.h"
34
#include "charset.h"
35

zorglub's avatar
zorglub committed
36
#define PLAYLIST_FILE_HEADER  "# vlc playlist file version 0.5"
37

38
/**
39
 * Import a playlist file at a given point of a given view
40 41
 * \param p_playlist the playlist to which the new items will be added
 * \param psz_filename the name of the playlistfile to import
zorglub's avatar
zorglub committed
42
 * \return VLC_SUCCESS on success
43
 */
44 45
int playlist_Import( playlist_t * p_playlist, const char *psz_filename,
                     playlist_item_t *p_root, vlc_bool_t b_only_there )
46
{
47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62
    char *psz_uri, *psz_opt;
    input_item_t *p_input;
    
    asprintf( &psz_uri, "file/playlist://%s", psz_filename );
    p_input = input_ItemNewExt( p_playlist, psz_uri, "playlist", 0, NULL, -1 );
    if( b_only_there )
    { 
        asprintf( &psz_opt, "parent-item=%i", p_root->i_id );
        vlc_input_item_AddOption( p_input, psz_opt );
        free( psz_opt );
    }
    if( p_root == p_playlist->p_ml_category )
        p_input->i_id = p_playlist->p_ml_category->p_input->i_id;
    input_Read( p_playlist, p_input, VLC_TRUE );
    free( psz_uri );
    
zorglub's avatar
zorglub committed
63 64 65 66
    return VLC_SUCCESS;
}

/**
67 68
 * Load a playlist file to the playlist. It will create a new node in 
 * category
zorglub's avatar
zorglub committed
69 70 71 72 73 74 75 76 77 78 79
 *
 * \param p_playlist the playlist to which the new items will be added
 * \param psz_filename the name of the playlistfile to import
 * \return VLC_SUCCESS on success
 */
int playlist_Load( playlist_t * p_playlist, const char *psz_filename )
{
    playlist_item_t *p_item;
    char *psz_uri;
    int i_id;

zorglub's avatar
zorglub committed
80
    msg_Info( p_playlist, "clearing playlist");
zorglub's avatar
zorglub committed
81 82 83
    playlist_Clear( p_playlist );


zorglub's avatar
zorglub committed
84 85
    psz_uri = (char *)malloc(sizeof(char)*strlen(psz_filename) + 17 );
    sprintf( psz_uri, "file/playlist://%s", psz_filename);
86

87
    i_id = playlist_PlaylistAdd( p_playlist, psz_uri, psz_uri,
zorglub's avatar
zorglub committed
88
                  PLAYLIST_INSERT  , PLAYLIST_END);
89

zorglub's avatar
zorglub committed
90
    vlc_mutex_lock( &p_playlist->object_lock );
91
    p_item = playlist_ItemGetById( p_playlist, i_id );
zorglub's avatar
zorglub committed
92
    vlc_mutex_unlock( &p_playlist->object_lock );
93

zorglub's avatar
zorglub committed
94 95
    playlist_Play(p_playlist);

zorglub's avatar
zorglub committed
96
    return VLC_SUCCESS;
97 98
}

99
/**
100
 * Export a node of the playlist to a certain type of playlistfile
zorglub's avatar
zorglub committed
101
 *
102 103
 * \param p_playlist the playlist to export
 * \param psz_filename the location where the exported file will be saved
104
 * \param p_export_root the root node to export
105
 * \param psz_type the type of playlist file to create.
zorglub's avatar
zorglub committed
106
 * \return VLC_SUCCESS on success
107
 */
zorglub's avatar
zorglub committed
108
int playlist_Export( playlist_t * p_playlist, const char *psz_filename ,
109
                     playlist_item_t *p_export_root,const char *psz_type )
110
{
zorglub's avatar
zorglub committed
111 112
    module_t *p_module;
    playlist_export_t *p_export;
113

114 115 116 117
    if( p_export_root == NULL ) return VLC_EGENERIC;

    msg_Info( p_playlist, "saving %s to file %s",
                    p_export_root->p_input->psz_name, psz_filename );
118

zorglub's avatar
zorglub committed
119 120 121 122
    /* Prepare the playlist_export_t structure */
    p_export = (playlist_export_t *)malloc( sizeof(playlist_export_t) );
    if( !p_export)
    {
123
        msg_Err( p_playlist, "out of memory" );
zorglub's avatar
zorglub committed
124 125
        return VLC_ENOMEM;
    }
126 127 128
    p_export->psz_filename = NULL;
    if ( psz_filename )
        p_export->psz_filename = strdup( psz_filename );
129
    p_export->p_file = utf8_fopen( psz_filename, "wt" );
zorglub's avatar
zorglub committed
130
    if( !p_export->p_file )
131
    {
zorglub's avatar
zorglub committed
132
        msg_Err( p_playlist , "could not create playlist file %s"
gbazin's avatar
 
gbazin committed
133 134
                 " (%s)", psz_filename, strerror(errno) );
        return VLC_EGENERIC;
135 136
    }

137 138
    p_export->p_root = p_export_root;

zorglub's avatar
zorglub committed
139 140
    /* Lock the playlist */
    vlc_mutex_lock( &p_playlist->object_lock );
141
    p_playlist->p_private = (void *)p_export;
142

zorglub's avatar
zorglub committed
143
    /* And call the module ! All work is done now */
gbazin's avatar
 
gbazin committed
144
    p_module = module_Need( p_playlist, "playlist export", psz_type, VLC_TRUE);
zorglub's avatar
zorglub committed
145
    if( !p_module )
146
    {
147
        msg_Warn( p_playlist, "exporting playlist failed" );
zorglub's avatar
zorglub committed
148 149
        vlc_mutex_unlock( &p_playlist->object_lock );
        return VLC_ENOOBJ;
150
    }
zorglub's avatar
zorglub committed
151
    module_Unneed( p_playlist , p_module );
152

153
    /* Clean up */
zorglub's avatar
zorglub committed
154
    fclose( p_export->p_file );
155 156 157 158
    if ( p_export->psz_filename )
        free( p_export->psz_filename );
    free ( p_export );
    p_playlist->p_private = NULL;
159 160
    vlc_mutex_unlock( &p_playlist->object_lock );

zorglub's avatar
zorglub committed
161
    return VLC_SUCCESS;
162
}