modules/access_output/dummy.c

   1 /*****************************************************************************
   2  * dummy.c
   3  *****************************************************************************
   4  * Copyright (C) 2001, 2002, 2004 VLC authors and VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   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
  28 #ifdef HAVE_CONFIG_H
  29 # include "config.h"
  30 #endif
  31
  32 #include <vlc_common.h>
  33 #include <vlc_plugin.h>
  34 #include <vlc_sout.h>
  35 #include <vlc_block.h>
  36
  37 /*****************************************************************************
  38  * Module descriptor
  39  *****************************************************************************/
  40 static int  Open ( vlc_object_t * );
  41 static void Close( vlc_object_t * );
  42
  43 vlc_module_begin ()
  44     set_description( N_("Dummy stream output") )
  45     set_shortname( N_( "Dummy" ))
  46     set_capability( "sout access", 0 )
  47     set_category( CAT_SOUT )
  48     set_subcategory( SUBCAT_SOUT_ACO )
  49     add_shortcut( "dummy" )
  50     set_callbacks( Open, Close )
  51 vlc_module_end ()
  52
  53
  54 /*****************************************************************************
  55  * Exported prototypes
  56  *****************************************************************************/
  57 static ssize_t Write( sout_access_out_t *, block_t * );
  58 static int     Seek ( sout_access_out_t *, off_t  );
  59
  60 /*****************************************************************************
  61  * Open: open the file
  62  *****************************************************************************/
  63 static int Open( vlc_object_t *p_this )
  64 {
  65     sout_access_out_t   *p_access = (sout_access_out_t*)p_this;
  66
  67     p_access->p_sys    = NULL;
  68     p_access->pf_write = Write;
  69     p_access->pf_seek  = Seek;
  70
  71     msg_Dbg( p_access, "dummy stream output access opened" );
  72     return VLC_SUCCESS;
  73 }
  74
  75 /*****************************************************************************
  76  * Close: close the target
  77  *****************************************************************************/
  78 static void Close( vlc_object_t * p_this )
  79 {
  80     sout_access_out_t   *p_access = (sout_access_out_t*)p_this;
  81     msg_Dbg( p_access, "dummy stream output access closed" );
  82 }
  83
  84 /*****************************************************************************
  85  * Read: standard read on a file descriptor.
  86  *****************************************************************************/
  87 static ssize_t Write( sout_access_out_t *p_access, block_t *p_buffer )
  88 {
  89     size_t i_write = 0;
  90     block_t *b = p_buffer;
  91
  92     while( b )
  93     {
  94         i_write += b->i_buffer;
  95
  96         b = b->p_next;
  97     }
  98
  99     block_ChainRelease( p_buffer );
 100
 101     (void)p_access;
 102     return i_write;
 103 }
 104
 105 /*****************************************************************************
 106  * Seek: seek to a specific location in a file
 107  *****************************************************************************/
 108 static int Seek( sout_access_out_t *p_access, off_t i_pos )
 109 {
 110     (void)p_access; (void)i_pos;
 111     return 0;
 112 }
 113
 114