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 *****************************************************************************/
30 #include <vlc_demux.h>
31 #include <vlc_charset.h>
33 /*****************************************************************************
35 *****************************************************************************/
36 #define FILE_TEXT N_("Dump filename")
37 #define FILE_LONGTEXT N_( \
38 "Name of the file to which the raw stream will be dumped." )
39 #define APPEND_TEXT N_("Append to existing file")
40 #define APPEND_LONGTEXT N_( \
41 "If the file already exists, it will not be overwritten." )
43 static int Open( vlc_object_t * );
44 static void Close ( vlc_object_t * );
47 set_shortname("Dump");
48 set_category( CAT_INPUT );
49 set_subcategory( SUBCAT_INPUT_DEMUX );
50 set_description( _("File dumper") );
51 set_capability( "demux2", 0 );
52 add_file( "demuxdump-file", "stream-demux.dump", NULL, FILE_TEXT,
53 FILE_LONGTEXT, VLC_FALSE );
54 add_bool( "demuxdump-append", 0, NULL, APPEND_TEXT, APPEND_LONGTEXT,
56 set_callbacks( Open, Close );
57 add_shortcut( "dump" );
61 /*****************************************************************************
63 *****************************************************************************/
64 static int Demux( demux_t * );
65 static int Control( demux_t *, int,va_list );
67 #define DUMP_BLOCKSIZE 16384
75 uint8_t buffer[DUMP_BLOCKSIZE];
79 * Data reading functions
82 /*****************************************************************************
83 * Open: initializes dump structures
84 *****************************************************************************/
85 static int Open( vlc_object_t * p_this )
87 demux_t *p_demux = (demux_t*)p_this;
93 /* Accept only if forced */
94 if( !p_demux->b_force )
97 var_Create( p_demux, "demuxdump-append", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
98 var_Get( p_demux, "demuxdump-append", &val );
99 b_append = val.b_bool;
105 p_demux->pf_demux = Demux;
106 p_demux->pf_control = Control;
107 p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
109 p_sys->p_file = NULL;
110 p_sys->psz_file = var_CreateGetString( p_demux, "demuxdump-file" );
111 if( *p_sys->psz_file == '\0' )
113 msg_Warn( p_demux, "no dump file name given" );
117 if( !strcmp( p_sys->psz_file, "-" ) )
119 msg_Info( p_demux, "dumping raw stream to standard output" );
120 p_sys->p_file = stdout;
122 else if( ( p_sys->p_file = utf8_fopen( p_sys->psz_file, psz_mode ) ) == NULL )
124 msg_Err( p_demux, "cannot create `%s' for writing", p_sys->psz_file );
129 msg_Info( p_demux, "%s raw stream to file `%s'",
130 b_append ? "appending" : "dumping", p_sys->psz_file );
135 /*****************************************************************************
137 *****************************************************************************/
138 static void Close( vlc_object_t *p_this )
141 demux_t *p_demux = (demux_t*)p_this;
142 demux_sys_t *p_sys = p_demux->p_sys;
144 msg_Info( p_demux ,"closing %s ("I64Fd" Kbytes dumped)", p_sys->psz_file,
145 p_sys->i_write / 1024 );
147 if( p_sys->p_file != stdout )
149 fclose( p_sys->p_file );
151 free( p_sys->psz_file );
156 /*****************************************************************************
157 * Demux: reads and demuxes data packets
158 *****************************************************************************
159 * Returns -1 in case of error, 0 in case of EOF, 1 otherwise
160 *****************************************************************************/
161 static int Demux( demux_t *p_demux )
163 demux_sys_t *p_sys = p_demux->p_sys;
167 /* I'm pretty sure that stream_Peek,stream_Read( , NULL ) would be faster*/
168 i_data = stream_Read( p_demux->s, p_sys->buffer, DUMP_BLOCKSIZE );
172 i_data = fwrite( p_sys->buffer, 1, i_data, p_sys->p_file );
176 msg_Err( p_demux, "failed to write data" );
180 msg_Dbg( p_demux, "dumped %d bytes", i_data );
183 p_sys->i_write += i_data;
188 /*****************************************************************************
189 * Demux: reads and demuxes data packets
190 *****************************************************************************/
191 static int Control( demux_t *p_demux, int i_query, va_list args )
193 return demux2_vaControlHelper( p_demux->s, 0, -1, 0, 1, i_query, args );