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( __OS2__ )
52 # define O_LARGEFILE 0
55 /*****************************************************************************
57 *****************************************************************************/
58 static int Open ( vlc_object_t * );
59 static void Close( vlc_object_t * );
61 #define SOUT_CFG_PREFIX "sout-file-"
62 #define APPEND_TEXT N_("Append to file")
63 #define APPEND_LONGTEXT N_( "Append to file if it exists instead " \
65 #define SYNC_TEXT N_("Synchronous writing")
66 #define SYNC_LONGTEXT N_( "Open the file with synchronous writing.")
69 set_description( N_("File stream output") )
70 set_shortname( N_("File" ))
71 set_capability( "sout access", 50 )
72 set_category( CAT_SOUT )
73 set_subcategory( SUBCAT_SOUT_ACO )
74 add_shortcut( "file", "stream", "fd" )
75 add_bool( SOUT_CFG_PREFIX "append", false, APPEND_TEXT,APPEND_LONGTEXT,
78 add_bool( SOUT_CFG_PREFIX "sync", false, SYNC_TEXT,SYNC_LONGTEXT,
81 set_callbacks( Open, Close )
85 /*****************************************************************************
87 *****************************************************************************/
88 static const char *const ppsz_sout_options[] = {
96 static ssize_t Write( sout_access_out_t *, block_t * );
97 static int Seek ( sout_access_out_t *, off_t );
98 static ssize_t Read ( sout_access_out_t *, block_t * );
99 static int Control( sout_access_out_t *, int, va_list );
101 /*****************************************************************************
102 * Open: open the file
103 *****************************************************************************/
104 static int Open( vlc_object_t *p_this )
106 sout_access_out_t *p_access = (sout_access_out_t*)p_this;
109 config_ChainParse( p_access, SOUT_CFG_PREFIX, ppsz_sout_options, p_access->p_cfg );
111 if( !p_access->psz_path )
113 msg_Err( p_access, "no file name specified" );
117 bool append = var_GetBool( p_access, SOUT_CFG_PREFIX "append" );
119 if (!strcmp (p_access->psz_access, "fd"))
123 fd = strtol (p_access->psz_path, &end, 0);
124 if (!*p_access->psz_path || *end)
126 msg_Err (p_access, "invalid file descriptor: %s",
133 msg_Err (p_access, "cannot use file descriptor: %m");
139 if( !strcmp( p_access->psz_path, "-" ) )
141 #if defined( WIN32 ) || defined( __OS2__ )
142 setmode (fileno (stdout), O_BINARY);
144 fd = vlc_dup (fileno (stdout));
147 msg_Err (p_access, "cannot use standard output: %m");
150 msg_Dbg( p_access, "using stdout" );
155 char *psz_tmp = str_format( p_access, p_access->psz_path );
156 path_sanitize( psz_tmp );
158 fd = vlc_open( psz_tmp, O_RDWR | O_CREAT | O_LARGEFILE |
160 (var_GetBool( p_access, SOUT_CFG_PREFIX "sync" ) ? O_SYNC : 0) |
162 (append ? 0 : O_TRUNC), 0666 );
166 msg_Err (p_access, "cannot create %s: %m", p_access->psz_path);
171 p_access->pf_write = Write;
172 p_access->pf_read = Read;
173 p_access->pf_seek = Seek;
174 p_access->pf_control = Control;
175 p_access->p_sys = (void *)(intptr_t)fd;
177 msg_Dbg( p_access, "file access output opened (%s)", p_access->psz_path );
179 lseek (fd, 0, SEEK_END);
184 /*****************************************************************************
185 * Close: close the target
186 *****************************************************************************/
187 static void Close( vlc_object_t * p_this )
189 sout_access_out_t *p_access = (sout_access_out_t*)p_this;
191 close( (intptr_t)p_access->p_sys );
193 msg_Dbg( p_access, "file access output closed" );
196 static int Control( sout_access_out_t *p_access, int i_query, va_list args )
200 case ACCESS_OUT_CONTROLS_PACE:
202 bool *pb = va_arg( args, bool * );
203 *pb = strcmp( p_access->psz_access, "stream" );
213 /*****************************************************************************
214 * Read: standard read on a file descriptor.
215 *****************************************************************************/
216 static ssize_t Read( sout_access_out_t *p_access, block_t *p_buffer )
221 val = read( (intptr_t)p_access->p_sys, p_buffer->p_buffer,
222 p_buffer->i_buffer );
223 while (val == -1 && errno == EINTR);
227 /*****************************************************************************
228 * Write: standard write on a file descriptor.
229 *****************************************************************************/
230 static ssize_t Write( sout_access_out_t *p_access, block_t *p_buffer )
236 ssize_t val = write ((intptr_t)p_access->p_sys,
237 p_buffer->p_buffer, p_buffer->i_buffer);
242 block_ChainRelease (p_buffer);
246 if ((size_t)val >= p_buffer->i_buffer)
248 block_t *p_next = p_buffer->p_next;
249 block_Release (p_buffer);
254 p_buffer->p_buffer += val;
255 p_buffer->i_buffer -= val;
262 /*****************************************************************************
263 * Seek: seek to a specific location in a file
264 *****************************************************************************/
265 static int Seek( sout_access_out_t *p_access, off_t i_pos )
267 return lseek( (intptr_t)p_access->p_sys, i_pos, SEEK_SET );