Commit b04d6af6 authored by Laurent Aimar's avatar Laurent Aimar

Removed remaining access_filter.

They were dead long enough.
parent 4d961a24
SOURCES_access_filter_dump = dump.c
SOURCES_access_filter_bandwidth = bandwidth.c
libvlc_LTLIBRARIES += \
libaccess_filter_dump_plugin.la \
libaccess_filter_bandwidth_plugin.la \
$(NULL)
/*****************************************************************************
* bandwidth.c
*****************************************************************************
* Copyright © 2007 Rémi Denis-Courmont
* $Id$
*
* 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.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <assert.h>
#include <vlc_access.h>
#define BANDWIDTH_TEXT N_("Bandwidth limit (bytes/s)")
#define BANDWIDTH_LONGTEXT N_( \
"The bandwidth module will drop any data in excess of that many bytes " \
"per seconds." )
static int Open (vlc_object_t *);
static void Close (vlc_object_t *);
/* TODO: burst support */
vlc_module_begin ()
set_shortname (N_("Bandwidth"))
set_description (N_("Bandwidth limiter"))
set_category (CAT_INPUT)
set_subcategory (SUBCAT_INPUT_ACCESS_FILTER)
set_capability ("access_filter", 0)
add_shortcut ("bandwidth")
set_callbacks (Open, Close)
add_integer ("access-bandwidth", 65536, NULL, BANDWIDTH_TEXT,
BANDWIDTH_LONGTEXT, false);
vlc_module_end ()
static ssize_t Read (access_t *access, uint8_t *buffer, size_t len);
static int Seek (access_t *access, int64_t offset);
static int Control (access_t *access, int cmd, va_list ap);
struct access_sys_t
{
mtime_t last_time;
size_t last_size;
size_t bandwidth;
};
/**
* Open()
*/
static int Open (vlc_object_t *obj)
{
access_t *access = (access_t*)obj;
access_t *src = access->p_source;
if (src->pf_read != NULL)
access->pf_read = Read;
else
{
msg_Err (obj, "block bandwidth limit not implemented");
return VLC_EGENERIC;
}
if (src->pf_seek != NULL)
access->pf_seek = Seek;
access->pf_control = Control;
access->info = src->info;
access_sys_t *p_sys = access->p_sys = calloc( 1, sizeof (*p_sys) );
if( !p_sys )
return VLC_ENOMEM;
p_sys->bandwidth = var_CreateGetInteger (access, "access-bandwidth");
p_sys->last_time = mdate ();
msg_Dbg (obj, "bandwidth limit: %lu bytes/s",
(unsigned long)p_sys->bandwidth);
return VLC_SUCCESS;
}
/**
* Close()
*/
static void Close (vlc_object_t *obj)
{
access_t *access = (access_t *)obj;
access_sys_t *p_sys = access->p_sys;
free (p_sys);
}
static ssize_t Read (access_t *access, uint8_t *buffer, size_t len)
{
access_t *src = access->p_source;
access_sys_t *p_sys = access->p_sys;
mtime_t now;
if (len == 0)
return 0;
retry:
now = mdate ();
if (now <= p_sys->last_time)
{
msg_Err (access, "*** ALERT *** System clock is going backward! ***");
return 0; /* Uho, your clock is broken. */
}
mtime_t delta = now - p_sys->last_time;
p_sys->last_time = now;
delta *= p_sys->bandwidth;
delta /= 1000000u;
if (delta == 0)
{
now += 1000000u / p_sys->bandwidth;
mwait (now);
goto retry;
}
if (len > delta)
{
msg_Dbg (access, "reading %"PRIu64" bytes instead of %zu", delta,
len);
len = (int)delta;
}
src->info.i_update = access->info.i_update;
len = src->pf_read (src, buffer, len);
access->info = src->info;
msg_Dbg (access, "read %zu bytes", len);
return len;
}
static int Control (access_t *access, int cmd, va_list ap)
{
access_t *src = access->p_source;
return src->pf_control (src, cmd, ap);
}
static int Seek (access_t *access, int64_t offset)
{
access_t *src = access->p_source;
src->info.i_update = access->info.i_update;
int ret = src->pf_seek (src, offset);
access->info = src->info;
return ret;
}
/*****************************************************************************
* dump.c
*****************************************************************************
* Copyright © 2006 Rémi Denis-Courmont
* $Id$
*
* Author: Rémi Denis-Courmont <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.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <assert.h>
#include <time.h>
#include <vlc_access.h>
#include <vlc_charset.h>
#include <vlc_keys.h>
#define DEFAULT_MARGIN 32 // megabytes
#define FORCE_TEXT N_("Force use of dump module")
#define FORCE_LONGTEXT N_("Activate the dump module " \
"even for media with fast seeking.")
#define MARGIN_TEXT N_("Maximum size of temporary file (Mb)")
#define MARGIN_LONGTEXT N_("The dump module will abort dumping of the media " \
"if more than this much megabyte were performed.")
static int Open (vlc_object_t *);
static void Close (vlc_object_t *);
vlc_module_begin ()
set_shortname (N_("Dump"))
set_description (N_("Dump"))
set_category (CAT_INPUT)
set_subcategory (SUBCAT_INPUT_ACCESS_FILTER)
set_capability ("access_filter", 0)
add_shortcut ("dump")
set_callbacks (Open, Close)
add_bool ("dump-force", false, NULL, FORCE_TEXT,
FORCE_LONGTEXT, false);
add_integer ("dump-margin", DEFAULT_MARGIN, NULL, MARGIN_TEXT,
MARGIN_LONGTEXT, false);
vlc_module_end ()
static ssize_t Read (access_t *access, uint8_t *buffer, size_t len);
static block_t *Block (access_t *access);
static int Seek (access_t *access, int64_t offset);
static int Control (access_t *access, int cmd, va_list ap);
static void Trigger (access_t *access);
static int KeyHandler (vlc_object_t *obj, char const *varname,
vlc_value_t oldval, vlc_value_t newval, void *data);
struct access_sys_t
{
FILE *stream;
int64_t tmp_max;
int64_t dumpsize;
};
/**
* Open()
*/
static int Open (vlc_object_t *obj)
{
access_t *access = (access_t*)obj;
access_t *src = access->p_source;
if (!var_CreateGetBool (access, "dump-force"))
{
bool b;
if ((access_Control (src, ACCESS_CAN_FASTSEEK, &b) == 0) && b)
{
msg_Dbg (obj, "dump filter useless");
return VLC_EGENERIC;
}
}
if (src->pf_read != NULL)
access->pf_read = Read;
else
access->pf_block = Block;
if (src->pf_seek != NULL)
access->pf_seek = Seek;
access->pf_control = Control;
access->info = src->info;
access_sys_t *p_sys = access->p_sys = calloc( 1, sizeof (*p_sys) );
if( !p_sys )
return VLC_ENOMEM;
# ifndef UNDER_CE
if ((p_sys->stream = tmpfile ()) == NULL)
# else
char buf[75];
if(GetTempFileName("\\Temp\\","vlc",0,buf) || ((p_sys->stream = fopen(buf,"wb+")) ==NULL))
#endif
{
msg_Err (access, "cannot create temporary file: %m");
free (p_sys);
return VLC_EGENERIC;
}
p_sys->tmp_max = ((int64_t)var_CreateGetInteger (access, "dump-margin")) << 20;
var_AddCallback (access->p_libvlc, "key-action", KeyHandler, access);
return VLC_SUCCESS;
}
/**
* Close()
*/
static void Close (vlc_object_t *obj)
{
access_t *access = (access_t *)obj;
access_sys_t *p_sys = access->p_sys;
var_DelCallback (access->p_libvlc, "key-action", KeyHandler, access);
if (p_sys->stream != NULL)
fclose (p_sys->stream);
free (p_sys);
}
static void Dump (access_t *access, const uint8_t *buffer, size_t len)
{
access_sys_t *p_sys = access->p_sys;
FILE *stream = p_sys->stream;
if ((stream == NULL) /* not dumping */
|| (access->info.i_pos < p_sys->dumpsize) /* already known data */)
return;
size_t needed = access->info.i_pos - p_sys->dumpsize;
if (len < needed)
return; /* gap between data and dump offset (seek too far ahead?) */
buffer += len - needed;
len = needed;
if (len == 0)
return; /* no useful data */
if ((p_sys->tmp_max != -1) && (access->info.i_pos > p_sys->tmp_max))
{
msg_Dbg (access, "too much data - dump will not work");
goto error;
}
assert (len > 0);
if (fwrite (buffer, len, 1, stream) != 1)
{
msg_Err (access, "cannot write to file: %m");
goto error;
}
p_sys->dumpsize += len;
return;
error:
fclose (stream);
p_sys->stream = NULL;
}
static ssize_t Read (access_t *access, uint8_t *buffer, size_t len)
{
access_t *src = access->p_source;
src->info.i_update = access->info.i_update;
len = src->pf_read (src, buffer, len);
access->info = src->info;
Dump (access, buffer, len);
return len;
}
static block_t *Block (access_t *access)
{
access_t *src = access->p_source;
block_t *block;
src->info.i_update = access->info.i_update;
block = src->pf_block (src);
access->info = src->info;
if ((block == NULL) || (block->i_buffer <= 0))
return block;
Dump (access, block->p_buffer, block->i_buffer);
return block;
}
static int Control (access_t *access, int cmd, va_list ap)
{
access_t *src = access->p_source;
return src->pf_control (src, cmd, ap);
}
static int Seek (access_t *access, int64_t offset)
{
access_t *src = access->p_source;
access_sys_t *p_sys = access->p_sys;
if (p_sys->tmp_max == -1)
{
msg_Err (access, "cannot seek while dumping!");
return VLC_EGENERIC;
}
if (p_sys->stream != NULL)
msg_Dbg (access, "seeking - dump might not work");
src->info.i_update = access->info.i_update;
int ret = src->pf_seek (src, offset);
access->info = src->info;
return ret;
}
static void Trigger (access_t *access)
{
access_sys_t *p_sys = access->p_sys;
if (p_sys->stream == NULL)
return; // too late
if (p_sys->tmp_max == -1)
return; // already triggered - should we stop? FIXME
time_t now;
time (&now);
struct tm t;
if (localtime_r (&now, &t) == NULL)
return; // No time, eh? Well, I'd rather not run on your computer.
if (t.tm_year > 999999999)
// Humanity is about 300 times older than when this was written,
// and there is an off-by-one in the following sprintf().
return;
char *dir = config_GetUserDir( VLC_DOWNLOAD_DIR );
if( dir == NULL )
return;
/* Hmm what about the extension?? */
char filename[strlen (dir) + sizeof ("/vlcdump-YYYYYYYYY-MM-DD-HH-MM-SS.ts")];
sprintf (filename, "%s/vlcdump-%04u-%02u-%02u-%02u-%02u-%02u.ts", dir,
t.tm_year, t.tm_mon, t.tm_mday, t.tm_hour, t.tm_min, t.tm_sec);
free( dir );
msg_Info (access, "dumping media to \"%s\"...", filename);
FILE *newstream = utf8_fopen (filename, "wb");
if (newstream == NULL)
{
msg_Err (access, "cannot create dump file \"%s\": %m", filename);
return;
}
/* This might cause excessive hard drive work :( */
FILE *oldstream = p_sys->stream;
rewind (oldstream);
for (;;)
{
char buf[16384];
size_t len = fread (buf, 1, sizeof (buf), oldstream);
if (len == 0)
{
if (ferror (oldstream))
{
msg_Err (access, "cannot read temporary file: %m");
break;
}
/* Done with temporary file */
fclose (oldstream);
p_sys->stream = newstream;
p_sys->tmp_max = -1;
return;
}
if (fwrite (buf, len, 1, newstream) != 1)
{
msg_Err (access, "cannot write dump file: %m");
break;
}
}
/* Failed to copy temporary file */
fseek (oldstream, 0, SEEK_END);
fclose (newstream);
return;
}
static int KeyHandler (vlc_object_t *obj, char const *varname,
vlc_value_t oldval, vlc_value_t newval, void *data)
{
access_t *access = data;
(void)varname;
(void)oldval;
(void)obj;
if (newval.i_int == ACTIONID_DUMP)
Trigger (access);
return VLC_SUCCESS;
}
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