<commit_before>/*****************************************************************************
 * file.c: file input (file: access plug-in)
 *****************************************************************************
 * Copyright (C) 2001-2006 the VideoLAN team
 * Copyright © 2006-2007 <NAME>
 * $Id$
 *
 * Authors: <NAME> <<EMAIL>>
 *          <NAME> <rem # videolan # org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_input.h>
#include <vlc_access.h>
#include <vlc_interface.h>

#include <assert.h>
#include <errno.h>
#ifdef HAVE_SYS_TYPES_H
#   include <sys/types.h>
#endif
#ifdef HAVE_SYS_STAT_H
#   include <sys/stat.h>
#endif
#ifdef HAVE_FCNTL_H
#   include <fcntl.h>
#endif

#if defined( WIN32 ) && !defined( UNDER_CE )
#   include <io.h>
#   include <ctype.h>
#else
#   include <unistd.h>
#   include <poll.h>
#endif

#if defined( WIN32 ) && !defined( UNDER_CE )
#   ifdef lseek
#      undef lseek
#   endif
#   define lseek _lseeki64
#elif defined( UNDER_CE )
#   ifdef read
#      undef read
#   endif
#   define read(a,b,c) fread(b,1,c,a)
#   define close(a) fclose(a)
#   ifdef lseek
#      undef lseek
#   endif
#   define lseek fseek
#endif

#include <vlc_charset.h>

/*****************************************************************************
 * Module descriptor
 *****************************************************************************/
static int  Open ( vlc_object_t * );
static void Close( vlc_object_t * );

#define CACHING_TEXT N_("Caching value in ms")
#define CACHING_LONGTEXT N_( \
    "Caching value for files. This " \
    "value should be set in milliseconds." )

vlc_module_begin();
    set_description( N_("File input") );
    set_shortname( N_("File") );
    set_category( CAT_INPUT );
    set_subcategory( SUBCAT_INPUT_ACCESS );
    add_integer( "file-caching", DEFAULT_PTS_DELAY / 1000, NULL, CACHING_TEXT, CACHING_LONGTEXT, true );
    add_obsolete_string( "file-cat" );
    set_capability( "access", 50 );
    add_shortcut( "file" );
    add_shortcut( "stream" );
    add_shortcut( "kfir" );
    set_callbacks( Open, Close );
vlc_module_end();


/*****************************************************************************
 * Exported prototypes
 *****************************************************************************/
static int  Seek( access_t *, int64_t );
static ssize_t Read( access_t *, uint8_t *, size_t );
static int  Control( access_t *, int, va_list );

static int  open_file( access_t *, const char * );

struct access_sys_t
{
    unsigned int i_nb_reads;
    bool   b_kfir;

    int fd;

    /* */
    bool b_seekable;
    bool b_pace_control;
};

/*****************************************************************************
 * Open: open the file
 *****************************************************************************/
static int Open( vlc_object_t *p_this )
{
    access_t     *p_access = (access_t*)p_this;
    access_sys_t *p_sys;

    bool    b_stdin = !strcmp (p_access->psz_path, "-");

    /* Update default_pts to a suitable value for file access */
    var_Create( p_access, "file-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );

    STANDARD_READ_ACCESS_INIT;
    p_sys->i_nb_reads = 0;
    p_sys->b_kfir = false;
    int fd = p_sys->fd = -1;

    if (!strcasecmp (p_access->psz_access, "stream"))
    {
        p_sys->b_seekable = false;
        p_sys->b_pace_control = false;
    }
    else if (!strcasecmp (p_access->psz_access, "kfir"))
    {
        p_sys->b_seekable = false;
        p_sys->b_pace_control = false;
        p_sys->b_kfir = true;
    }
    else
    {
        p_sys->b_seekable = true;
        p_sys->b_pace_control = true;
    }

    /* Open file */
    msg_Dbg (p_access, "opening file `%s'", p_access->psz_path);

    if (b_stdin)
        fd = dup (0);
    else
        fd = open_file (p_access, p_access->psz_path);

#ifdef HAVE_SYS_STAT_H
    struct stat st;

    while (fd != -1)
    {
        if (fstat (fd, &st))
            msg_Err (p_access, "fstat(%d): %m", fd);
        else
        if (S_ISDIR (st.st_mode))
            /* The directory plugin takes care of that */
            msg_Dbg (p_access, "file is a directory, aborting");
        else
            break; // success

        close (fd);
        fd = -1;
    }
#endif

    if (fd == -1)
    {
        free (p_sys);
        return VLC_EGENERIC;
    }
    p_sys->fd = fd;

#ifdef HAVE_SYS_STAT_H
    p_access->info.i_size = st.st_size;
    if (!S_ISREG (st.st_mode)
     && !S_ISBLK (st.st_mode)
     && !S_ISCHR (st.st_mode))
        p_sys->b_seekable = false;
#else
    p_sys->b_seekable = !b_stdin;
# warning File size not known!
#endif

    return VLC_SUCCESS;
}

/*****************************************************************************
 * Close: close the target
 *****************************************************************************/
static void Close (vlc_object_t * p_this)
{
    access_t     *p_access = (access_t*)p_this;
    access_sys_t *p_sys = p_access->p_sys;

    close (p_sys->fd);
    free (p_sys);
}

/*****************************************************************************
 * Read: standard read on a file descriptor.<commit_msg>File: devices are not seekable<commit_after>/*****************************************************************************
 * file.c: file input (file: access plug-in)
 *****************************************************************************
 * Copyright (C) 2001-2006 the VideoLAN team
 * Copyright © 2006-2007 <NAME>
 * $Id$
 *
 * Authors: <NAME> <<EMAIL>>
 *          <NAME> <rem # videolan # org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_input.h>
#include <vlc_access.h>
#include <vlc_interface.h>

#include <assert.h>
#include <errno.h>
#ifdef HAVE_SYS_TYPES_H
#   include <sys/types.h>
#endif
#ifdef HAVE_SYS_STAT_H
#   include <sys/stat.h>
#endif
#ifdef HAVE_FCNTL_H
#   include <fcntl.h>
#endif

#if defined( WIN32 ) && !defined( UNDER_CE )
#   include <io.h>
#   include <ctype.h>
#else
#   include <unistd.h>
#   include <poll.h>
#endif

#if defined( WIN32 ) && !defined( UNDER_CE )
#   ifdef lseek
#      undef lseek
#   endif
#   define lseek _lseeki64
#elif defined( UNDER_CE )
#   ifdef read
#      undef read
#   endif
#   define read(a,b,c) fread(b,1,c,a)
#   define close(a) fclose(a)
#   ifdef lseek
#      undef lseek
#   endif
#   define lseek fseek
#endif

#include <vlc_charset.h>

/*****************************************************************************
 * Module descriptor
 *****************************************************************************/
static int  Open ( vlc_object_t * );
static void Close( vlc_object_t * );

#define CACHING_TEXT N_("Caching value in ms")
#define CACHING_LONGTEXT N_( \
    "Caching value for files. This " \
    "value should be set in milliseconds." )

vlc_module_begin();
    set_description( N_("File input") );
    set_shortname( N_("File") );
    set_category( CAT_INPUT );
    set_subcategory( SUBCAT_INPUT_ACCESS );
    add_integer( "file-caching", DEFAULT_PTS_DELAY / 1000, NULL, CACHING_TEXT, CACHING_LONGTEXT, true );
    add_obsolete_string( "file-cat" );
    set_capability( "access", 50 );
    add_shortcut( "file" );
    add_shortcut( "stream" );
    add_shortcut( "kfir" );
    set_callbacks( Open, Close );
vlc_module_end();


/*****************************************************************************
 * Exported prototypes
 *****************************************************************************/
static int  Seek( access_t *, int64_t );
static ssize_t Read( access_t *, uint8_t *, size_t );
static int  Control( access_t *, int, va_list );

static int  open_file( access_t *, const char * );

struct access_sys_t
{
    unsigned int i_nb_reads;
    bool   b_kfir;

    int fd;

    /* */
    bool b_seekable;
    bool b_pace_control;
};

/*****************************************************************************
 * Open: open the file
 *****************************************************************************/
static int Open( vlc_object_t *p_this )
{
    access_t     *p_access = (access_t*)p_this;
    access_sys_t *p_sys;

    bool    b_stdin = !strcmp (p_access->psz_path, "-");

    /* Update default_pts to a suitable value for file access */
    var_Create( p_access, "file-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );

    STANDARD_READ_ACCESS_INIT;
    p_sys->i_nb_reads = 0;
    p_sys->b_kfir = false;
    int fd = p_sys->fd = -1;

    if (!strcasecmp (p_access->psz_access, "stream"))
    {
        p_sys->b_seekable = false;
        p_sys->b_pace_control = false;
    }
    else if (!strcasecmp (p_access->psz_access, "kfir"))
    {
        p_sys->b_seekable = false;
        p_sys->b_pace_control = false;
        p_sys->b_kfir = true;
    }
    else
    {
        p_sys->b_seekable = true;
        p_sys->b_pace_control = true;
    }

    /* Open file */
    msg_Dbg (p_access, "opening file `%s'", p_access->psz_path);

    if (b_stdin)
        fd = dup (0);
    else
        fd = open_file (p_access, p_access->psz_path);

#ifdef HAVE_SYS_STAT_H
    struct stat st;

    while (fd != -1)
    {
        if (fstat (fd, &st))
            msg_Err (p_access, "fstat(%d): %m", fd);
        else
        if (S_ISDIR (st.st_mode))
            /* The directory plugin takes care of that */
            msg_Dbg (p_access, "file is a directory, aborting");
        else
            break; // success

        close (fd);
        fd = -1;
    }
#endif

    if (fd == -1)
    {
        free (p_sys);
        return VLC_EGENERIC;
    }
    p_sys->fd = fd;

#ifdef HAVE_SYS_STAT_H
    p_access->info.i_size = st.st_size;
    if (!S_ISREG (st.st_mode))
        p_sys->b_seekable = false;
#else
    p_sys->b_seekable = !b_stdin;
# warning File size not known!
#endif

    return VLC_SUCCESS;
}

/*****************************************************************************
 * Close: close the target
 *****************************************************************************/
static void Close (vlc_object_t * p_this)
{
    access_t     *p_access = (access_t*)p_this;
    access_sys_t *p_sys = p_access->p_sys;

    close (p_sys->fd);
    free (p_sys);
}

/*****************************************************************************
 * Read: standard read on a file descriptor.
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