1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2001, 2002 the VideoLAN team
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Eric Petit <titer@videolan.org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
33 #include <sys/types.h>
38 #include <vlc_common.h>
39 #include <vlc_plugin.h>
41 #include <vlc_block.h>
43 #include <vlc_strings.h>
45 #if defined( WIN32 ) && !defined( UNDER_CE )
47 # define lseek _lseeki64
48 #elif defined( __OS2__ )
55 # define O_LARGEFILE 0
58 /*****************************************************************************
60 *****************************************************************************/
61 static int Open ( vlc_object_t * );
62 static void Close( vlc_object_t * );
64 #define SOUT_CFG_PREFIX "sout-file-"
65 #define APPEND_TEXT N_("Append to file")
66 #define APPEND_LONGTEXT N_( "Append to file if it exists instead " \
68 #define SYNC_TEXT N_("Synchronous writing")
69 #define SYNC_LONGTEXT N_( "Open the file with synchronous writing.")
72 set_description( N_("File stream output") )
73 set_shortname( N_("File" ))
74 set_capability( "sout access", 50 )
75 set_category( CAT_SOUT )
76 set_subcategory( SUBCAT_SOUT_ACO )
77 add_shortcut( "file", "stream", "fd" )
78 add_bool( SOUT_CFG_PREFIX "append", false, APPEND_TEXT,APPEND_LONGTEXT,
81 add_bool( SOUT_CFG_PREFIX "sync", false, SYNC_TEXT,SYNC_LONGTEXT,
84 set_callbacks( Open, Close )
88 /*****************************************************************************
90 *****************************************************************************/
91 static const char *const ppsz_sout_options[] = {
99 static ssize_t Write( sout_access_out_t *, block_t * );
100 static int Seek ( sout_access_out_t *, off_t );
101 static ssize_t Read ( sout_access_out_t *, block_t * );
102 static int Control( sout_access_out_t *, int, va_list );
104 struct sout_access_out_sys_t
109 /*****************************************************************************
110 * Open: open the file
111 *****************************************************************************/
112 static int Open( vlc_object_t *p_this )
114 sout_access_out_t *p_access = (sout_access_out_t*)p_this;
117 config_ChainParse( p_access, SOUT_CFG_PREFIX, ppsz_sout_options, p_access->p_cfg );
119 if( !p_access->psz_path )
121 msg_Err( p_access, "no file name specified" );
125 bool append = var_GetBool( p_access, SOUT_CFG_PREFIX "append" );
127 if (!strcmp (p_access->psz_access, "fd"))
131 fd = strtol (p_access->psz_path, &end, 0);
132 if (!*p_access->psz_path || *end)
134 msg_Err (p_access, "invalid file descriptor: %s",
141 msg_Err (p_access, "cannot use file descriptor: %m");
147 if( !strcmp( p_access->psz_path, "-" ) )
149 #if defined( WIN32 ) || defined( __OS2__ )
150 setmode (fileno (stdout), O_BINARY);
152 fd = vlc_dup (fileno (stdout));
155 msg_Err (p_access, "cannot use standard output: %m");
158 msg_Dbg( p_access, "using stdout" );
163 char *psz_tmp = str_format( p_access, p_access->psz_path );
164 path_sanitize( psz_tmp );
166 fd = vlc_open( psz_tmp, O_RDWR | O_CREAT | O_LARGEFILE |
168 (var_GetBool( p_access, SOUT_CFG_PREFIX "sync" ) ? O_SYNC : 0) |
170 (append ? 0 : O_TRUNC), 0666 );
174 msg_Err (p_access, "cannot create %s: %m", p_access->psz_path);
179 p_access->pf_write = Write;
180 p_access->pf_read = Read;
181 p_access->pf_seek = Seek;
182 p_access->pf_control = Control;
183 p_access->p_sys = (void *)(intptr_t)fd;
185 msg_Dbg( p_access, "file access output opened (%s)", p_access->psz_path );
187 lseek (fd, 0, SEEK_END);
192 /*****************************************************************************
193 * Close: close the target
194 *****************************************************************************/
195 static void Close( vlc_object_t * p_this )
197 sout_access_out_t *p_access = (sout_access_out_t*)p_this;
199 close( (intptr_t)p_access->p_sys );
201 msg_Dbg( p_access, "file access output closed" );
204 static int Control( sout_access_out_t *p_access, int i_query, va_list args )
208 case ACCESS_OUT_CONTROLS_PACE:
210 bool *pb = va_arg( args, bool * );
211 *pb = strcmp( p_access->psz_access, "stream" );
221 /*****************************************************************************
222 * Read: standard read on a file descriptor.
223 *****************************************************************************/
224 static ssize_t Read( sout_access_out_t *p_access, block_t *p_buffer )
229 val = read( (intptr_t)p_access->p_sys, p_buffer->p_buffer,
230 p_buffer->i_buffer );
231 while (val == -1 && errno == EINTR);
235 /*****************************************************************************
236 * Write: standard write on a file descriptor.
237 *****************************************************************************/
238 static ssize_t Write( sout_access_out_t *p_access, block_t *p_buffer )
244 ssize_t val = write ((intptr_t)p_access->p_sys,
245 p_buffer->p_buffer, p_buffer->i_buffer);
250 block_ChainRelease (p_buffer);
254 if ((size_t)val >= p_buffer->i_buffer)
256 block_t *p_next = p_buffer->p_next;
257 block_Release (p_buffer);
262 p_buffer->p_buffer += val;
263 p_buffer->i_buffer -= val;
270 /*****************************************************************************
271 * Seek: seek to a specific location in a file
272 *****************************************************************************/
273 static int Seek( sout_access_out_t *p_access, off_t i_pos )
275 return lseek( (intptr_t)p_access->p_sys, i_pos, SEEK_SET );