* file.c: file input (file: access plug-in)
*****************************************************************************
* Copyright (C) 2001, 2002 VideoLAN
- * $Id: file.c,v 1.1 2002/08/04 17:23:41 sam Exp $
+ * $Id: file.c,v 1.21 2003/06/09 09:29:12 massiot Exp $
*
* Authors: Christophe Massiot <massiot@via.ecp.fr>
*
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <string.h>
-#include <errno.h>
-#include <fcntl.h>
-
#include <vlc/vlc.h>
#include <vlc/input.h>
+#include <stdlib.h>
+#include <string.h>
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+#ifdef HAVE_ERRNO_H
+# include <errno.h>
+#endif
+#ifdef HAVE_FCNTL_H
+# include <fcntl.h>
+#endif
+
#ifdef HAVE_UNISTD_H
# include <unistd.h>
-#elif defined( _MSC_VER ) && defined( _WIN32 )
+#elif defined( WIN32 ) && !defined( UNDER_CE )
# include <io.h>
#endif
+/* stat() support for large files on win32 */
+#if defined( WIN32 ) && !defined( UNDER_CE )
+#define stat(a,b) _stati64(a,b)
+#define fstat(a,b) _fstati64(a,b)
+#endif
+
+/*****************************************************************************
+ * Exported prototypes
+ *****************************************************************************/
+static int Open ( vlc_object_t * );
+static void Close ( vlc_object_t * );
+
+static void Seek ( input_thread_t *, off_t );
+static ssize_t Read ( input_thread_t *, byte_t *, size_t );
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+#define CACHING_TEXT N_("Caching value in ms")
+#define CACHING_LONGTEXT N_( \
+ "Allows you to modify the default caching value for file streams. This " \
+ "value should be set in miliseconds units." )
+
+vlc_module_begin();
+ set_description( _("Standard filesystem file input") );
+ add_category_hint( N_("file"), NULL, VLC_TRUE );
+ add_integer( "file-caching", DEFAULT_PTS_DELAY / 1000, NULL, CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
+ set_capability( "access", 50 );
+ add_shortcut( "file" );
+ add_shortcut( "stream" );
+ add_shortcut( "kfir" );
+ set_callbacks( Open, Close );
+vlc_module_end();
+
+/*****************************************************************************
+ * _input_socket_t: private access plug-in data, modified to add private
+ * fields
+ *****************************************************************************/
+typedef struct _input_socket_s
+{
+ input_socket_t _socket;
+
+ unsigned int i_nb_reads;
+ vlc_bool_t b_kfir;
+} _input_socket_t;
+
/*****************************************************************************
* Open: open the file
*****************************************************************************/
{
input_thread_t * p_input = (input_thread_t *)p_this;
char * psz_name = p_input->psz_name;
+#ifdef HAVE_SYS_STAT_H
int i_stat;
- struct stat stat_info;
- input_socket_t * p_access_data;
- vlc_bool_t b_stdin;
+#if defined( WIN32 ) && !defined( UNDER_CE )
+ struct _stati64 stat_info;
+#else
+ struct stat stat_info;
+#endif
+#endif
+ _input_socket_t * p_access_data;
+ vlc_bool_t b_stdin, b_kfir = 0;
p_input->i_mtu = 0;
b_stdin = psz_name[0] == '-' && psz_name[1] == '\0';
+#ifdef HAVE_SYS_STAT_H
if( !b_stdin && (i_stat = stat( psz_name, &stat_info )) == (-1) )
{
- msg_Err( p_input, "cannot stat() file `%s' (%s)",
- psz_name, strerror(errno));
- return( -1 );
+# ifdef HAVE_ERRNO_H
+ msg_Warn( p_input, "cannot stat() file `%s' (%s)",
+ psz_name, strerror(errno));
+# else
+ msg_Warn( p_input, "cannot stat() file `%s'", psz_name );
+# endif
+ return VLC_EGENERIC;
}
+#endif
- p_input->pf_read = input_FDRead;
+ p_input->pf_read = Read;
p_input->pf_set_program = input_SetProgram;
p_input->pf_set_area = NULL;
- p_input->pf_seek = input_FDSeek;
+ p_input->pf_seek = Seek;
vlc_mutex_lock( &p_input->stream.stream_lock );
p_input->stream.b_seekable = 0;
p_input->stream.p_selected_area->i_size = 0;
}
+ else if( *p_input->psz_access &&
+ !strncmp( p_input->psz_access, "kfir", 7 ) )
+ {
+ /* stream:%s */
+ p_input->stream.b_pace_control = 0;
+ p_input->stream.b_seekable = 0;
+ p_input->stream.p_selected_area->i_size = 0;
+ b_kfir = 1;
+ }
else
{
/* file:%s or %s */
p_input->stream.b_seekable = 0;
p_input->stream.p_selected_area->i_size = 0;
}
+#ifdef UNDER_CE
+ else if( VLC_TRUE )
+ {
+ /* We'll update i_size after it's been opened */
+ p_input->stream.b_seekable = 1;
+ }
+#elif defined( HAVE_SYS_STAT_H )
else if( S_ISREG(stat_info.st_mode) || S_ISCHR(stat_info.st_mode)
|| S_ISBLK(stat_info.st_mode) )
{
p_input->stream.p_selected_area->i_size = stat_info.st_size;
}
else if( S_ISFIFO(stat_info.st_mode)
-#if !defined( SYS_BEOS ) && !defined( WIN32 )
+# if !defined( SYS_BEOS ) && !defined( WIN32 )
|| S_ISSOCK(stat_info.st_mode)
-#endif
+# endif
)
{
p_input->stream.b_seekable = 0;
p_input->stream.p_selected_area->i_size = 0;
}
+#endif
else
{
vlc_mutex_unlock( &p_input->stream.stream_lock );
msg_Err( p_input, "unknown file type for `%s'", psz_name );
- return( -1 );
+ return VLC_EGENERIC;
}
}
vlc_mutex_unlock( &p_input->stream.stream_lock );
msg_Dbg( p_input, "opening file `%s'", psz_name );
- p_access_data = malloc( sizeof(input_socket_t) );
+ p_access_data = malloc( sizeof(_input_socket_t) );
p_input->p_access_data = (void *)p_access_data;
if( p_access_data == NULL )
{
msg_Err( p_input, "out of memory" );
- return( -1 );
+ return VLC_ENOMEM;
}
+ p_access_data->i_nb_reads = 0;
+ p_access_data->b_kfir = b_kfir;
if( b_stdin )
{
- p_access_data->i_handle = 0;
+ p_access_data->_socket.i_handle = 0;
+ }
+ else
+ {
+#ifdef UNDER_CE
+ wchar_t psz_filename[MAX_PATH];
+ MultiByteToWideChar( CP_ACP, 0, psz_name, -1, psz_filename, MAX_PATH );
+
+ p_access_data->_socket.i_handle = (int)CreateFile( psz_filename,
+ GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING,
+ FILE_ATTRIBUTE_NORMAL, NULL );
+
+ if( (HANDLE)p_access_data->_socket.i_handle == INVALID_HANDLE_VALUE )
+ {
+ msg_Err( p_input, "cannot open file %s", psz_name );
+ free( p_access_data );
+ return VLC_EGENERIC;
+ }
+ p_input->stream.p_selected_area->i_size =
+ GetFileSize( (HANDLE)p_access_data->_socket.i_handle, NULL );
+#else
+ p_access_data->_socket.i_handle = open( psz_name,
+ O_NONBLOCK /*| O_LARGEFILE*/ );
+ if( p_access_data->_socket.i_handle == -1 )
+ {
+# ifdef HAVE_ERRNO_H
+ msg_Err( p_input, "cannot open file %s (%s)", psz_name,
+ strerror(errno) );
+# else
+ msg_Err( p_input, "cannot open file %s", psz_name );
+# endif
+ free( p_access_data );
+ return VLC_EGENERIC;
+ }
+#endif
}
- else if( (p_access_data->i_handle = open( psz_name,
- /*O_NONBLOCK | O_LARGEFILE*/ 0 )) == (-1) )
+
+ if ( p_input->stream.b_seekable
+ && !p_input->stream.p_selected_area->i_size )
{
- msg_Err( p_input, "cannot open file %s (%s)", psz_name,
- strerror(errno) );
+ msg_Err( p_input, "file %s is empty, aborting", psz_name );
free( p_access_data );
- return( -1 );
+ return VLC_EGENERIC;
}
- return( 0 );
+ /* Update default_pts to a suitable value for file access */
+ p_input->i_pts_delay = config_GetInt( p_input, "file-caching" ) * 1000;
+
+ return VLC_SUCCESS;
}
/*****************************************************************************
- * Module descriptor
+ * Close: close the target
*****************************************************************************/
-vlc_module_begin();
- set_description( _("Standard filesystem file reading") );
- set_capability( "access", 50 );
- add_shortcut( "stream" );
- set_callbacks( Open, __input_FDClose );
-vlc_module_end();
+static void Close( vlc_object_t * p_this )
+{
+ input_thread_t * p_input = (input_thread_t *)p_this;
+ input_socket_t * p_access_data = (input_socket_t *)p_input->p_access_data;
+
+ msg_Info( p_input, "closing `%s/%s://%s'",
+ p_input->psz_access, p_input->psz_demux, p_input->psz_name );
+
+#ifdef UNDER_CE
+ CloseHandle( (HANDLE)p_access_data->i_handle );
+#else
+ close( p_access_data->i_handle );
+#endif
+
+ free( p_access_data );
+}
+
+/*****************************************************************************
+ * Read: standard read on a file descriptor.
+ *****************************************************************************/
+static ssize_t Read( input_thread_t * p_input, byte_t * p_buffer, size_t i_len )
+{
+ _input_socket_t * p_access_data = (_input_socket_t *)p_input->p_access_data;
+ ssize_t i_ret;
+
+#ifdef UNDER_CE
+ if( !ReadFile( (HANDLE)p_access_data->_socket.i_handle, p_buffer, i_len,
+ (LPDWORD)&i_ret, NULL ) )
+ {
+ i_ret = -1;
+ }
+#else
+#ifndef WIN32
+ if ( !p_input->stream.b_pace_control )
+ {
+ if ( !p_access_data->b_kfir )
+ {
+ /* Find if some data is available. This won't work under Windows. */
+ struct timeval timeout;
+ fd_set fds;
+
+ /* Initialize file descriptor set */
+ FD_ZERO( &fds );
+ FD_SET( p_access_data->_socket.i_handle, &fds );
+
+ /* We'll wait 0.5 second if nothing happens */
+ timeout.tv_sec = 0;
+ timeout.tv_usec = 500000;
+
+ /* Find if some data is available */
+ while( (i_ret = select( p_access_data->_socket.i_handle + 1, &fds,
+ NULL, NULL, &timeout )) == 0
+ || (i_ret < 0 && errno == EINTR) )
+ {
+ FD_ZERO( &fds );
+ FD_SET( p_access_data->_socket.i_handle, &fds );
+ timeout.tv_sec = 0;
+ timeout.tv_usec = 500000;
+
+ if( p_input->b_die || p_input->b_error )
+ {
+ return 0;
+ }
+ }
+
+ if( i_ret < 0 )
+ {
+ msg_Err( p_input, "select error (%s)", strerror(errno) );
+ return -1;
+ }
+
+ i_ret = read( p_access_data->_socket.i_handle, p_buffer, i_len );
+ }
+ else
+ {
+ /* b_kfir ; work around a buggy poll() driver implementation */
+ while ( (i_ret = read( p_access_data->_socket.i_handle, p_buffer,
+ i_len )) == 0 &&
+ !p_input->b_die && !p_input->b_error )
+ {
+ msleep(INPUT_ERROR_SLEEP);
+ }
+ }
+ }
+ else
+# endif
+ {
+ /* b_pace_control || WIN32 */
+ i_ret = read( p_access_data->_socket.i_handle, p_buffer, i_len );
+ }
+#endif
+
+ if( i_ret < 0 )
+ {
+#ifdef HAVE_ERRNO_H
+ if ( errno != EINTR && errno != EAGAIN )
+ msg_Err( p_input, "read failed (%s)", strerror(errno) );
+#else
+ msg_Err( p_input, "read failed" );
+#endif
+
+ /* Delay a bit to avoid consuming all the CPU. This is particularly
+ * useful when reading from an unconnected FIFO. */
+ msleep( INPUT_ERROR_SLEEP );
+ }
+ p_access_data->i_nb_reads++;
+#ifdef HAVE_SYS_STAT_H
+ if ( p_input->stream.p_selected_area->i_size != 0
+ && (p_access_data->i_nb_reads % INPUT_FSTAT_NB_READS) == 0 )
+ {
+#if defined( WIN32 ) && !defined( UNDER_CE )
+ struct _stati64 stat_info;
+#else
+ struct stat stat_info;
+#endif
+ if ( fstat( p_access_data->_socket.i_handle, &stat_info ) == -1 )
+ {
+# ifdef HAVE_ERRNO_H
+ msg_Warn( p_input, "couldn't stat again the file (%s)",
+ strerror(errno) );
+# else
+ msg_Warn( p_input, "couldn't stat again the file" );
+# endif
+ }
+ else if ( p_input->stream.p_selected_area->i_size != stat_info.st_size )
+ {
+ p_input->stream.p_selected_area->i_size = stat_info.st_size;
+ p_input->stream.b_changed = 1;
+ }
+ }
+#endif
+
+ return i_ret;
+}
+
+/*****************************************************************************
+ * Seek: seek to a specific location in a file
+ *****************************************************************************/
+static void Seek( input_thread_t * p_input, off_t i_pos )
+{
+#define S p_input->stream
+ input_socket_t * p_access_data = (input_socket_t *)p_input->p_access_data;
+
+#if defined( WIN32 ) && !defined( UNDER_CE )
+ _lseeki64( p_access_data->i_handle, i_pos, SEEK_SET );
+#else
+ lseek( p_access_data->i_handle, i_pos, SEEK_SET );
+#endif
+
+ vlc_mutex_lock( &S.stream_lock );
+ S.p_selected_area->i_tell = i_pos;
+ if( S.p_selected_area->i_tell > S.p_selected_area->i_size )
+ {
+ msg_Err( p_input, "seeking too far" );
+ S.p_selected_area->i_tell = S.p_selected_area->i_size;
+ }
+ else if( S.p_selected_area->i_tell < 0 )
+ {
+ msg_Err( p_input, "seeking too early" );
+ S.p_selected_area->i_tell = 0;
+ }
+ vlc_mutex_unlock( &S.stream_lock );
+#undef S
+}
+
projects / vlc / blobdiff