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 *****************************************************************************/
34 #include <vlc_common.h>
35 #include <vlc_plugin.h>
36 #include <vlc_demux.h>
37 #include <vlc_charset.h>
39 /*****************************************************************************
41 *****************************************************************************/
42 #define FILE_TEXT N_("Dump filename")
43 #define FILE_LONGTEXT N_( \
44 "Name of the file to which the raw stream will be dumped." )
45 #define APPEND_TEXT N_("Append to existing file")
46 #define APPEND_LONGTEXT N_( \
47 "If the file already exists, it will not be overwritten." )
49 static int Open( vlc_object_t * );
50 static void Close ( vlc_object_t * );
53 set_shortname("Dump");
54 set_category( CAT_INPUT );
55 set_subcategory( SUBCAT_INPUT_DEMUX );
56 set_description( N_("File dumper") );
57 set_capability( "demux", 0 );
58 add_file( "demuxdump-file", "stream-demux.dump", NULL, FILE_TEXT,
59 FILE_LONGTEXT, false );
61 add_bool( "demuxdump-append", 0, NULL, APPEND_TEXT, APPEND_LONGTEXT,
63 set_callbacks( Open, Close );
64 add_shortcut( "dump" );
68 /*****************************************************************************
70 *****************************************************************************/
71 static int Demux( demux_t * );
72 static int Control( demux_t *, int,va_list );
74 #define DUMP_BLOCKSIZE 16384
82 uint8_t buffer[DUMP_BLOCKSIZE];
86 * Data reading functions
89 /*****************************************************************************
90 * Open: initializes dump structures
91 *****************************************************************************/
92 static int Open( vlc_object_t * p_this )
94 demux_t *p_demux = (demux_t*)p_this;
100 /* Accept only if forced */
101 if( !p_demux->b_force )
104 p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
108 var_Create( p_demux, "demuxdump-append", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
109 var_Get( p_demux, "demuxdump-append", &val );
110 b_append = val.b_bool;
116 p_demux->pf_demux = Demux;
117 p_demux->pf_control = Control;
120 p_sys->p_file = NULL;
121 p_sys->psz_file = var_CreateGetString( p_demux, "demuxdump-file" );
122 if( *p_sys->psz_file == '\0' )
124 msg_Warn( p_demux, "no dump file name given" );
125 free( p_sys->psz_file );
130 if( !strcmp( p_sys->psz_file, "-" ) )
132 msg_Info( p_demux, "dumping raw stream to standard output" );
133 p_sys->p_file = stdout;
135 else if( ( p_sys->p_file = utf8_fopen( p_sys->psz_file, psz_mode ) ) == NULL )
137 msg_Err( p_demux, "cannot create `%s' for writing", p_sys->psz_file );
138 free( p_sys->psz_file );
142 msg_Info( p_demux, "%s raw stream to file `%s'",
143 b_append ? "appending" : "dumping", p_sys->psz_file );
148 /*****************************************************************************
150 *****************************************************************************/
151 static void Close( vlc_object_t *p_this )
154 demux_t *p_demux = (demux_t*)p_this;
155 demux_sys_t *p_sys = p_demux->p_sys;
157 msg_Info( p_demux ,"closing %s (%"PRId64" Kbytes dumped)", p_sys->psz_file,
158 p_sys->i_write / 1024 );
160 if( p_sys->p_file != stdout )
162 fclose( p_sys->p_file );
164 free( p_sys->psz_file );
168 /*****************************************************************************
169 * Demux: reads and demuxes data packets
170 *****************************************************************************
171 * Returns -1 in case of error, 0 in case of EOF, 1 otherwise
172 *****************************************************************************/
173 static int Demux( demux_t *p_demux )
175 demux_sys_t *p_sys = p_demux->p_sys;
179 /* I'm pretty sure that stream_Peek,stream_Read( , NULL ) would be faster*/
180 i_data = stream_Read( p_demux->s, p_sys->buffer, DUMP_BLOCKSIZE );
184 i_data = fwrite( p_sys->buffer, 1, i_data, p_sys->p_file );
188 msg_Err( p_demux, "failed to write data" );
192 msg_Dbg( p_demux, "dumped %d bytes", i_data );
195 p_sys->i_write += i_data;
200 /*****************************************************************************
201 * Demux: reads and demuxes data packets
202 *****************************************************************************/
203 static int Control( demux_t *p_demux, int i_query, va_list args )
205 return demux_vaControlHelper( p_demux->s, 0, -1, 0, 1, i_query, args );