src/playlist/export.c

   1 /*****************************************************************************
   2  * playlist/export.c
   3  *****************************************************************************
   4  * Copyright (C) 2019 VLC authors and VideoLAN
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU Lesser General Public License as published by
   8  * the Free Software Foundation; either version 2.1 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14  * GNU Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public License
  17  * along with this program; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  19  *****************************************************************************/
  20
  21 #ifdef HAVE_CONFIG_H
  22 # include "config.h"
  23 #endif
  24
  25 #include <vlc_playlist_export.h>
  26
  27 #include <errno.h>
  28 #include <stdio.h>
  29
  30 #include <vlc_common.h>
  31 #include <vlc_fs.h>
  32 #include <vlc_modules.h>
  33 #include <vlc_url.h>
  34 #include "playlist.h"
  35 #include "libvlc.h"
  36
  37 struct vlc_playlist_view
  38 {
  39     vlc_playlist_t *playlist;
  40 };
  41
  42 size_t
  43 vlc_playlist_view_Count(struct vlc_playlist_view *view)
  44 {
  45     return vlc_playlist_Count(view->playlist);
  46 }
  47
  48 vlc_playlist_item_t *
  49 vlc_playlist_view_Get(struct vlc_playlist_view *view, size_t index)
  50 {
  51     return vlc_playlist_Get(view->playlist, index);
  52 }
  53
  54 int
  55 vlc_playlist_Export(struct vlc_playlist *playlist, const char *filename,
  56                     const char *type)
  57 {
  58     vlc_playlist_AssertLocked(playlist);
  59
  60     struct vlc_playlist_export *export =
  61         vlc_custom_create(vlc_player_GetObject(playlist->player),
  62                           sizeof(*export), "playlist export");
  63
  64     if (!export)
  65         return VLC_ENOMEM;
  66
  67     int ret = VLC_EGENERIC;
  68
  69     struct vlc_playlist_view playlist_view = { .playlist = playlist };
  70
  71     export->playlist_view = &playlist_view;
  72     export->base_url = vlc_path2uri(filename, NULL);
  73     export->file = vlc_fopen(filename, "wt");
  74     if (!export->file)
  75     {
  76         msg_Err(export, "Could not create playlist file %s, %s",
  77                 filename, vlc_strerror_c(errno));
  78         goto close_file;
  79     }
  80
  81     // this will actually export
  82     module_t *module = module_need(export, "playlist export", type, true);
  83
  84     if (!module)
  85     {
  86         msg_Err(export, "Could not export playlist");
  87         goto out;
  88     }
  89
  90     module_unneed(export, module);
  91
  92     if (!ferror(export->file))
  93         ret = VLC_SUCCESS;
  94     else
  95         msg_Err(export, "Could not write playlist file: %s",
  96                 vlc_strerror_c(errno));
  97
  98 close_file:
  99     fclose(export->file);
 100 out:
 101    free(export->base_url);
 102    vlc_object_delete(export);
 103    return ret;
 104 }