modules/demux/playlist/bdmv.c

   1 /*****************************************************************************
   2  * bdmv.c: Dummy bdmv demux - opens BluRays rips via index.bdmv
   3  *****************************************************************************
   4  * Copyright (C) 2018 VLC authors and VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Shaya Potter <spotter@gmail.com>
   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 <vlc_url.h>
  34 #include <assert.h>
  35
  36 #include "playlist.h"
  37
  38 /*****************************************************************************
  39  * Local prototypes
  40  *****************************************************************************/
  41 static int ReadBR( stream_t *, input_item_node_t * );
  42
  43 static const char *StreamLocation( const stream_t *s )
  44 {
  45     return s->psz_filepath ? s->psz_filepath : s->psz_url;
  46 }
  47
  48 /*****************************************************************************
  49  * Import_BDMV: main import function
  50  *****************************************************************************/
  51 int Import_BDMV( vlc_object_t *p_this )
  52 {
  53     stream_t *p_stream = (stream_t *)p_this;
  54
  55     CHECK_FILE(p_stream);
  56
  57     if( !stream_HasExtension( p_stream, ".BDMV" ) )
  58         return VLC_EGENERIC;
  59
  60     const char *psz_location = StreamLocation( p_stream );
  61     if( psz_location == NULL )
  62         return VLC_EGENERIC;
  63
  64     size_t len = strlen( psz_location );
  65     if( len < 15 )
  66         return VLC_EGENERIC;
  67
  68     const char *psz_probe;
  69     const char *psz_file = &psz_location[len - 10];
  70     /* Valid filenames are :
  71      *  - INDEX.BDMV
  72      */
  73     if( !strncasecmp( psz_file, "INDEX", 5 ) )
  74     {
  75         psz_probe = "INDX0200";
  76         p_stream->pf_readdir = ReadBR;
  77     }
  78     else
  79         return VLC_EGENERIC;
  80
  81     const uint8_t *p_peek;
  82     ssize_t i_peek = vlc_stream_Peek( p_stream->s, &p_peek, 8 );
  83     if( i_peek < 8 || memcmp( p_peek, psz_probe, 8 ) )
  84         return VLC_EGENERIC;
  85
  86     p_stream->pf_control = access_vaDirectoryControlHelper;
  87
  88     return VLC_SUCCESS;
  89 }
  90
  91 static int ReadBR( stream_t *p_stream, input_item_node_t *node )
  92 {
  93     const char *psz_loc = StreamLocation(p_stream);
  94
  95     // 10 character in INDEX.BDMV, 5 character in BDMV/, subtract 15
  96     char *psz_url = strndup( psz_loc, strlen( psz_loc) - 15 );
  97     if( !psz_url )
  98         return VLC_ENOMEM;
  99
 100     input_item_t *p_input = input_item_New( psz_url, psz_url );
 101     input_item_AddOption( p_input, "demux=bluray", VLC_INPUT_OPTION_TRUSTED );
 102     input_item_node_AppendItem( node, p_input );
 103     input_item_Release( p_input );
 104
 105     free( psz_url );
 106
 107     return VLC_SUCCESS;
 108 }