1 /*****************************************************************************
2 * demuxdump.c : Pseudo demux module for vlc (dump raw stream)
3 *****************************************************************************
4 * Copyright (C) 2001-2004 the VideoLAN team
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
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 General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
32 #include <vlc_common.h>
33 #include <vlc_plugin.h>
34 #include <vlc_demux.h>
37 /*****************************************************************************
39 *****************************************************************************/
40 #define FILE_TEXT N_("Dump filename")
41 #define FILE_LONGTEXT N_( \
42 "Name of the file to which the raw stream will be dumped." )
43 #define APPEND_TEXT N_("Append to existing file")
44 #define APPEND_LONGTEXT N_( \
45 "If the file already exists, it will not be overwritten." )
47 static int Open( vlc_object_t
* );
48 static void Close ( vlc_object_t
* );
52 set_category( CAT_INPUT
)
53 set_subcategory( SUBCAT_INPUT_DEMUX
)
54 set_description( N_("File dumper") )
55 set_capability( "demux", 0 )
56 add_file( "demuxdump-file", "stream-demux.dump", NULL
, FILE_TEXT
,
57 FILE_LONGTEXT
, false )
58 add_bool( "demuxdump-append", false, NULL
, APPEND_TEXT
, APPEND_LONGTEXT
,
60 set_callbacks( Open
, Close
)
61 add_shortcut( "dump" )
65 /*****************************************************************************
67 *****************************************************************************/
68 static int Demux( demux_t
* );
69 static int Control( demux_t
*, int,va_list );
71 #define DUMP_BLOCKSIZE 16384
79 uint8_t buffer
[DUMP_BLOCKSIZE
];
83 * Data reading functions
86 /*****************************************************************************
87 * Open: initializes dump structures
88 *****************************************************************************/
89 static int Open( vlc_object_t
* p_this
)
91 demux_t
*p_demux
= (demux_t
*)p_this
;
96 /* Accept only if forced */
97 if( !p_demux
->b_force
)
100 p_demux
->p_sys
= p_sys
= malloc( sizeof( demux_sys_t
) );
104 b_append
= var_CreateGetBool( p_demux
, "demuxdump-append" );
110 p_demux
->pf_demux
= Demux
;
111 p_demux
->pf_control
= Control
;
114 p_sys
->p_file
= NULL
;
115 p_sys
->psz_file
= var_CreateGetString( p_demux
, "demuxdump-file" );
116 if( *p_sys
->psz_file
== '\0' )
118 msg_Warn( p_demux
, "no dump file name given" );
119 free( p_sys
->psz_file
);
124 if( !strcmp( p_sys
->psz_file
, "-" ) )
126 msg_Info( p_demux
, "dumping raw stream to standard output" );
127 p_sys
->p_file
= stdout
;
129 else if( ( p_sys
->p_file
= vlc_fopen( p_sys
->psz_file
, psz_mode
) ) == NULL
)
131 msg_Err( p_demux
, "cannot create `%s' for writing", p_sys
->psz_file
);
132 free( p_sys
->psz_file
);
136 msg_Info( p_demux
, "%s raw stream to file `%s'",
137 b_append
? "appending" : "dumping", p_sys
->psz_file
);
142 /*****************************************************************************
144 *****************************************************************************/
145 static void Close( vlc_object_t
*p_this
)
148 demux_t
*p_demux
= (demux_t
*)p_this
;
149 demux_sys_t
*p_sys
= p_demux
->p_sys
;
151 msg_Info( p_demux
,"closing %s (%"PRId64
" KiB dumped)", p_sys
->psz_file
,
152 p_sys
->i_write
/ 1024 );
154 if( p_sys
->p_file
!= stdout
)
156 fclose( p_sys
->p_file
);
158 free( p_sys
->psz_file
);
162 /*****************************************************************************
163 * Demux: reads and demuxes data packets
164 *****************************************************************************
165 * Returns -1 in case of error, 0 in case of EOF, 1 otherwise
166 *****************************************************************************/
167 static int Demux( demux_t
*p_demux
)
169 demux_sys_t
*p_sys
= p_demux
->p_sys
;
173 i_data
= stream_Read( p_demux
->s
, p_sys
->buffer
, DUMP_BLOCKSIZE
);
177 i_data
= fwrite( p_sys
->buffer
, 1, i_data
, p_sys
->p_file
);
181 msg_Err( p_demux
, "failed to write data" );
185 msg_Dbg( p_demux
, "dumped %d bytes", i_data
);
188 p_sys
->i_write
+= i_data
;
193 /*****************************************************************************
194 * Demux: reads and demuxes data packets
195 *****************************************************************************/
196 static int Control( demux_t
*p_demux
, int i_query
, va_list args
)
198 return demux_vaControlHelper( p_demux
->s
, 0, -1, 0, 1, i_query
, args
);