1 /*****************************************************************************
2 * demuxdump.c : Pseudo demux module for vlc (dump raw stream)
3 *****************************************************************************
4 * Copyright (C) 2001 VideoLAN
5 * $Id: demuxdump.c,v 1.5 2003/02/20 01:52:46 sigmunau Exp $
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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
27 #include <stdlib.h> /* malloc(), free() */
28 #include <string.h> /* strdup() */
32 #include <vlc/input.h>
34 #include <sys/types.h>
36 /*****************************************************************************
38 *****************************************************************************/
39 static int Activate ( vlc_object_t * );
40 static int Demux ( input_thread_t * );
41 static void Desactivate ( vlc_object_t * );
43 #define DUMP_BLOCKSIZE 16384
45 /*****************************************************************************
47 *****************************************************************************/
49 set_description( _("Dump Demux input") );
50 set_capability( "demux", 0 );
51 add_category_hint( "File", NULL, VLC_FALSE );
52 add_string( "demuxdump-file", NULL, NULL,
54 "file name for dumping raw stream read by demux", VLC_FALSE );
55 set_callbacks( Activate, Desactivate );
56 add_shortcut( "dump" );
65 void *p_demux_data_sav;
69 * Data reading functions
72 /*****************************************************************************
73 * Activate: initializes dump structures
74 *****************************************************************************/
75 static int Activate( vlc_object_t * p_this )
77 input_thread_t *p_input = (input_thread_t *)p_this;
82 /* Set the demux function */
83 p_input->pf_demux = Demux;
85 /* Initialize access plug-in structures. */
86 if( p_input->i_mtu == 0 )
89 p_input->i_bufsize = INPUT_DEFAULT_BUFSIZE;
92 psz_name = config_GetPsz( p_input, "demuxdump-file" );
93 if( !psz_name || !*psz_name )
95 psz_name = strdup( "stream-demux.dump" );
98 p_demux = malloc( sizeof( demux_sys_t ) );
99 memset( p_demux, 0, sizeof( demux_sys_t ) );
101 if( !strcmp( psz_name, "-" ) )
104 "dumping raw stream to standard output" );
105 p_demux->p_file = stdout;
106 p_demux->psz_name = psz_name;
108 else if( !( p_demux->p_file = fopen( psz_name, "wb" ) ) )
111 "cannot create `%s' for writing",
119 "dumping raw stream to file `%s'",
121 p_demux->psz_name = psz_name;
124 p_demux->i_write = 0;
125 p_demux->p_demux_data_sav = p_input->p_demux_data;
127 if( p_input->stream.p_selected_program != NULL )
129 /* workaround for dvd access */
130 msg_Warn( p_input, "demux data already initializated (by access?)" );
135 if( input_InitStream( p_input, 0 ) == -1 )
137 if( p_demux->p_file != stdout )
138 fclose( p_demux->p_file );
142 input_AddProgram( p_input, 0, 0 );
143 p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
145 vlc_mutex_lock( &p_input->stream.stream_lock );
146 p_input->stream.p_selected_area->i_tell = 0;
147 vlc_mutex_unlock( &p_input->stream.stream_lock );
150 p_input->p_demux_data = p_demux;
152 vlc_mutex_lock( &p_input->stream.stream_lock );
153 p_input->stream.p_selected_program->b_is_ok = 1;
154 vlc_mutex_unlock( &p_input->stream.stream_lock );
159 /*****************************************************************************
160 * Desctivate: initializes dump structures
161 *****************************************************************************/
162 static void Desactivate ( vlc_object_t *p_this )
164 input_thread_t *p_input = (input_thread_t *)p_this;
165 demux_sys_t *p_demux = (demux_sys_t*)p_input->p_demux_data;
168 "closing %s ("I64Fd" Kbytes dumped)",
170 p_demux->i_write / 1024 );
172 if( p_demux->p_file )
174 if( p_demux->p_file != stdout )
175 fclose( p_demux->p_file );
176 p_demux->p_file = NULL;
178 if( p_demux->psz_name )
180 free( p_demux->psz_name );
182 p_input->p_demux_data = p_demux->p_demux_data_sav;
186 /*****************************************************************************
187 * Demux: reads and demuxes data packets
188 *****************************************************************************
189 * Returns -1 in case of error, 0 in case of EOF, 1 otherwise
190 *****************************************************************************/
191 static int Demux( input_thread_t * p_input )
193 demux_sys_t *p_demux = (demux_sys_t*)p_input->p_demux_data;
196 data_packet_t * p_data;
199 p_input->p_demux_data = p_demux->p_demux_data_sav;
200 i_read = input_SplitBuffer( p_input, &p_data, DUMP_BLOCKSIZE );
201 p_input->p_demux_data = p_demux;
208 i_write = fwrite( p_data->p_payload_start,
213 input_DeletePacket( p_input->p_method_data, p_data );
218 "failed to write %d bytes",
227 p_demux->i_write += i_write;
231 if( (p_input->stream.p_selected_program->i_synchro_state == SYNCHRO_REINIT)
232 | (input_ClockManageControl( p_input,
233 p_input->stream.p_selected_program,
234 (mtime_t)0 ) == PAUSE_S) )
236 msg_Warn( p_input, "synchro reinit" );
237 p_input->stream.p_selected_program->i_synchro_state = SYNCHRO_OK;