modules/demux/playlist/ifo.c

   1 /*****************************************************************************
   2  * ifo.c: Dummy ifo demux to enable opening DVDs rips by double cliking on VIDEO_TS.IFO
   3  *****************************************************************************
   4  * Copyright (C) 2007 VLC authors and VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Antoine Cellerier <dionoea @t videolan d.t org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU Lesser General Public License as published by
  11  * the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public License
  20  * along with this program; if not, write to the Free Software Foundation,
  21  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27 #ifdef HAVE_CONFIG_H
  28 # include "config.h"
  29 #endif
  30
  31 #include <vlc_common.h>
  32 #include <vlc_access.h>
  33 #include <assert.h>
  34
  35 #include "playlist.h"
  36
  37 /*****************************************************************************
  38  * Local prototypes
  39  *****************************************************************************/
  40 static int ReadDVD( stream_t *, input_item_node_t * );
  41 static int ReadDVD_VR( stream_t *, input_item_node_t * );
  42
  43 /*****************************************************************************
  44  * Import_IFO: main import function
  45  *****************************************************************************/
  46 int Import_IFO( vlc_object_t *p_this )
  47 {
  48     stream_t *p_demux = (stream_t *)p_this;
  49
  50     CHECK_FILE(p_demux);
  51     if( p_demux->psz_filepath == NULL )
  52         return VLC_EGENERIC;
  53
  54     size_t len = strlen( p_demux->psz_filepath );
  55
  56     char *psz_file = p_demux->psz_filepath + len - strlen( "VIDEO_TS.IFO" );
  57     /* Valid filenames are :
  58      *  - VIDEO_TS.IFO
  59      *  - VTS_XX_X.IFO where X are digits
  60      */
  61     if( len > strlen( "VIDEO_TS.IFO" )
  62         && ( !strcasecmp( psz_file, "VIDEO_TS.IFO" )
  63         || (!strncasecmp( psz_file, "VTS_", 4 )
  64         && !strcasecmp( psz_file + strlen( "VTS_00_0" ) , ".IFO" ) ) ) )
  65     {
  66         const uint8_t *p_peek;
  67         ssize_t i_peek = vlc_stream_Peek( p_demux->s, &p_peek, 8 );
  68
  69         if( i_peek != 8 || memcmp( p_peek, "DVDVIDEO", 8 ) )
  70             return VLC_EGENERIC;
  71
  72         p_demux->pf_readdir = ReadDVD;
  73     }
  74     /* Valid filename for DVD-VR is VR_MANGR.IFO */
  75     else if( len >= 12 && !strcmp( &p_demux->psz_filepath[len-12], "VR_MANGR.IFO" ) )
  76     {
  77         const uint8_t *p_peek;
  78         ssize_t i_peek = vlc_stream_Peek( p_demux->s, &p_peek, 8 );
  79
  80         if( i_peek != 8 || memcmp( p_peek, "DVD_RTR_", 8 ) )
  81             return VLC_EGENERIC;
  82
  83         p_demux->pf_readdir = ReadDVD_VR;
  84     }
  85     else
  86         return VLC_EGENERIC;
  87
  88     p_demux->pf_control = access_vaDirectoryControlHelper;
  89
  90     return VLC_SUCCESS;
  91 }
  92
  93 static int ReadDVD( stream_t *p_demux, input_item_node_t *node )
  94 {
  95     char *psz_url, *psz_dir;
  96
  97     psz_dir = strrchr( p_demux->psz_location, '/' );
  98     if( psz_dir != NULL )
  99        psz_dir[1] = '\0';
 100
 101     if( asprintf( &psz_url, "dvd://%s", p_demux->psz_location ) == -1 )
 102         return 0;
 103
 104     input_item_t *p_input = input_item_New( psz_url, psz_url );
 105     input_item_node_AppendItem( node, p_input );
 106     input_item_Release( p_input );
 107
 108     free( psz_url );
 109
 110     return VLC_SUCCESS;
 111 }
 112
 113 static int ReadDVD_VR( stream_t *p_demux, input_item_node_t *node )
 114 {
 115     size_t len = strlen( p_demux->psz_location );
 116     char *psz_url = malloc( len + 1 );
 117
 118     if( unlikely( psz_url == NULL ) )
 119         return 0;
 120     assert( len >= 12 );
 121     len -= 12;
 122     memcpy( psz_url, p_demux->psz_location, len );
 123     memcpy( psz_url + len, "VR_MOVIE.VRO", 13 );
 124
 125     input_item_t *p_input = input_item_New( psz_url, psz_url );
 126     input_item_node_AppendItem( node, p_input );
 127     input_item_Release( p_input );
 128
 129     free( psz_url );
 130
 131     return VLC_SUCCESS;
 132 }