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Commit 775fa8a1 authored by gbazin's avatar gbazin
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* modules/access/rtsp: real rtsp access module.

parent 369ccbef
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configure.ac
View file @ 775fa8a1
......@@ -2402,6 +2402,15 @@ if test "${enable_real}" = "yes"; then
VLC_ADD_PLUGINS([realaudio])
fi
dnl
dnl Real RTSP plugin
dnl
AC_ARG_ENABLE(realrtsp,
[ --enable-realrtsp Real RTSP module (default disabled)])
if test "${enable_realrtsp}" = "yes"; then
VLC_ADD_PLUGINS([access_realrtsp])
fi
dnl
dnl MP4 module
dnl
......@@ -4653,6 +4662,7 @@ AC_CONFIG_FILES([
modules/access/pvr/Makefile
modules/access/v4l/Makefile
modules/access/cdda/Makefile
modules/access/rtsp/Makefile
modules/access/vcd/Makefile
modules/access/vcdx/Makefile
modules/access/screen/Makefile
......
modules/access/rtsp/Modules.am 0 → 100644
View file @ 775fa8a1
SOURCES_access_realrtsp = \
access.c \
rtsp.c \
rtsp.h \
real.c \
real.h \
real_rmff.c \
real_rmff.h \
real_sdpplin.c \
real_sdpplin.h \
real_asmrp.c \
real_asmrp.h \
$(NULL)
modules/access/rtsp/access.c 0 → 100644
View file @ 775fa8a1
/*****************************************************************************
* access.c: Real rtsp input
*****************************************************************************
* Copyright (C) 2005 VideoLAN
* $Id: file.c 10310 2005-03-11 22:36:40Z anil $
*
* Authors: Gildas Bazin <gbazin@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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <vlc/vlc.h>
#include <vlc/input.h>
#include "network.h"
#include "rtsp.h"
#include "real.h"
/*****************************************************************************
* Module descriptor
*****************************************************************************/
static int Open ( vlc_object_t * );
static void Close( vlc_object_t * );
#define CACHING_TEXT N_("Caching value (ms)")
#define CACHING_LONGTEXT N_( \
"Allows you to modify the default caching value for RTSP streams. This " \
"value should be set in millisecond units." )
vlc_module_begin();
set_description( _("Standard filesystem file input") );
set_shortname( _("Real RTSP") );
set_category( CAT_INPUT );
set_subcategory( SUBCAT_INPUT_ACCESS );
add_integer( "realrtsp-caching", 3000, NULL,
CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
set_capability( "access2", 10 );
set_callbacks( Open, Close );
add_shortcut( "realrtsp" );
add_shortcut( "rtsp" );
vlc_module_end();
/*****************************************************************************
* Exported prototypes
*****************************************************************************/
static block_t *BlockRead( access_t * );
static int Seek( access_t *, int64_t );
static int Control( access_t *, int, va_list );
struct access_sys_t
{
vlc_bool_t b_seekable;
vlc_bool_t b_pace_control;
rtsp_client_t *p_rtsp;
int fd;
block_t *p_header;
};
/*****************************************************************************
* Network wrappers
*****************************************************************************/
static int RtspConnect( void *p_userdata, char *psz_server, int i_port )
{
access_t *p_access = (access_t *)p_userdata;
access_sys_t *p_sys = p_access->p_sys;
/* Open connection */
p_sys->fd = net_OpenTCP( p_access, psz_server, i_port );
if( p_sys->fd < 0 )
{
msg_Err( p_access, "cannot connect to %s:%d", psz_server, i_port );
return VLC_EGENERIC;
}
return VLC_SUCCESS;
}
static int RtspDisconnect( void *p_userdata )
{
access_t *p_access = (access_t *)p_userdata;
access_sys_t *p_sys = p_access->p_sys;
net_Close( p_sys->fd );
return VLC_SUCCESS;
}
static int RtspRead( void *p_userdata, uint8_t *p_buffer, int i_buffer )
{
access_t *p_access = (access_t *)p_userdata;
access_sys_t *p_sys = p_access->p_sys;
return net_Read( p_access, p_sys->fd, 0, p_buffer, i_buffer, VLC_TRUE );
}
static int RtspReadLine( void *p_userdata, uint8_t *p_buffer, int i_buffer )
{
access_t *p_access = (access_t *)p_userdata;
access_sys_t *p_sys = p_access->p_sys;
char *psz = net_Gets( VLC_OBJECT(p_access), p_sys->fd, 0 );
//fprintf(stderr, "ReadLine: %s\n", psz);
if( psz ) strncpy( (char *)p_buffer, psz, i_buffer );
else *p_buffer = 0;
if( psz ) free( psz );
return 0;
}
static int RtspWrite( void *p_userdata, uint8_t *p_buffer, int i_buffer )
{
access_t *p_access = (access_t *)p_userdata;
access_sys_t *p_sys = p_access->p_sys;
//fprintf(stderr, "Write: %s", p_buffer);
net_Printf( VLC_OBJECT(p_access), p_sys->fd, 0, "%s", p_buffer );
return 0;
}
/*****************************************************************************
* Open: open the rtsp connection
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
access_t *p_access = (access_t *)p_this;
access_sys_t *p_sys;
char *psz_server = 0;
int i_result;
if( !p_access->b_force ) return VLC_EGENERIC;
p_access->pf_read = NULL;
p_access->pf_block = BlockRead;
p_access->pf_seek = Seek;
p_access->pf_control = Control;
p_access->info.i_update = 0;
p_access->info.i_size = 0;
p_access->info.i_pos = 0;
p_access->info.b_eof = VLC_FALSE;
p_access->info.i_title = 0;
p_access->info.i_seekpoint = 0;
p_access->p_sys = p_sys = malloc( sizeof( access_sys_t ) );
p_sys->p_rtsp = malloc( sizeof( rtsp_client_t) );
p_sys->p_header = 0;
p_sys->p_rtsp->p_userdata = p_access;
p_sys->p_rtsp->pf_connect = RtspConnect;
p_sys->p_rtsp->pf_disconnect = RtspDisconnect;
p_sys->p_rtsp->pf_read = RtspRead;
p_sys->p_rtsp->pf_read_line = RtspReadLine;
p_sys->p_rtsp->pf_write = RtspWrite;
i_result = rtsp_connect( p_sys->p_rtsp, p_access->psz_path, 0 );
if( i_result )
{
msg_Dbg( p_access, "could not connect to: %s", p_access->psz_path );
free( p_sys->p_rtsp );
p_sys->p_rtsp = 0;
goto error;
}
msg_Dbg( p_access, "rtsp connected" );
/* looking for server type */
if( rtsp_search_answers( p_sys->p_rtsp, "Server" ) )
psz_server = strdup( rtsp_search_answers( p_sys->p_rtsp, "Server" ) );
else
{
if( rtsp_search_answers( p_sys->p_rtsp, "RealChallenge1" ) )
psz_server = strdup("Real");
else
psz_server = strdup("unknown");
}
if( strstr( psz_server, "Real" ) || strstr( psz_server, "Helix" ) )
{
uint32_t bandwidth = 10485800;
rmff_header_t *h;
msg_Dbg( p_access, "found a real/helix rtsp server" );
if( !(h = real_setup_and_get_header( p_sys->p_rtsp, bandwidth )) )
{
/* Check if we got a redirect */
if( rtsp_search_answers( p_sys->p_rtsp, "Location" ) )
{
msg_Dbg( p_access, "redirect: %s",
rtsp_search_answers(p_sys->p_rtsp, "Location") );
msg_Warn( p_access, "redirect not supported" );
goto error;
}
msg_Err( p_access, "rtsp session can not be established" );
goto error;
}
p_sys->p_header = block_New( p_access, 4096 );
p_sys->p_header->i_buffer =
rmff_dump_header( h, p_sys->p_header->p_buffer, 1024 );
}
else
{
msg_Dbg( p_access, "only real/helix rtsp servers supported for now" );
goto error;
}
/* Update default_pts to a suitable value for file access */
var_Create( p_access, "realrtsp-caching",
VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
return VLC_SUCCESS;
error:
if( psz_server ) free( psz_server );
Close( p_this );
return VLC_EGENERIC;
}
/*****************************************************************************
* 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;
if( p_sys->p_rtsp ) rtsp_close( p_sys->p_rtsp );
if( p_sys->p_rtsp ) free( p_sys->p_rtsp );
free( p_sys );
}
/*****************************************************************************
* Read: standard read on a file descriptor.
*****************************************************************************/
static block_t *BlockRead( access_t *p_access )
{
access_sys_t *p_sys = p_access->p_sys;
block_t *p_block;
if( p_sys->p_header )
{
p_block = p_sys->p_header;
p_sys->p_header = 0;
return p_block;
}
p_block = block_New( p_access, 4096 );
p_block->i_buffer = real_get_rdt_chunk( p_access->p_sys->p_rtsp,
&p_block->p_buffer );
return p_block;
}
/*****************************************************************************
* Seek: seek to a specific location in a file
*****************************************************************************/
static int Seek( access_t *p_access, int64_t i_pos )
{
return VLC_SUCCESS;
}
/*****************************************************************************
* Control:
*****************************************************************************/
static int Control( access_t *p_access, int i_query, va_list args )
{
access_sys_t *p_sys = p_access->p_sys;
vlc_bool_t *pb_bool;
int *pi_int;
int64_t *pi_64;
switch( i_query )
{
/* */
case ACCESS_CAN_SEEK:
case ACCESS_CAN_FASTSEEK:
pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
*pb_bool = VLC_FALSE;//p_sys->b_seekable;
break;
case ACCESS_CAN_PAUSE:
pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
*pb_bool = VLC_FALSE;
break;
case ACCESS_CAN_CONTROL_PACE:
pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
*pb_bool = VLC_TRUE;//p_sys->b_pace_control;
break;
/* */
case ACCESS_GET_MTU:
pi_int = (int*)va_arg( args, int * );
*pi_int = 0;
break;
case ACCESS_GET_PTS_DELAY:
pi_64 = (int64_t*)va_arg( args, int64_t * );
*pi_64 = var_GetInteger( p_access, "realrtsp-caching" ) * 1000;
break;
/* */
case ACCESS_SET_PAUSE_STATE:
/* Nothing to do */
break;
case ACCESS_GET_TITLE_INFO:
case ACCESS_SET_TITLE:
case ACCESS_SET_SEEKPOINT:
case ACCESS_SET_PRIVATE_ID_STATE:
case ACCESS_GET_META:
return VLC_EGENERIC;
default:
msg_Warn( p_access, "unimplemented query in control" );
return VLC_EGENERIC;
}
return VLC_SUCCESS;
}
modules/access/rtsp/real.c 0 → 100644
View file @ 775fa8a1
/*****************************************************************************
* real.c: real rtsp input
*****************************************************************************
* Copyright (C) 2002-2004 the xine project
* Copyright (C) 2005 VideoLAN
* $Id: file.c 10310 2005-03-11 22:36:40Z anil $
*
* Authors: Gildas Bazin <gbazin@videolan.org>
* Adapted from xine which itself adapted it from joschkas real tools.
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
#include <stdio.h>
#include <string.h>
#include <vlc/vlc.h>
#include "rtsp.h"
#include "real.h"
#include "real_sdpplin.h"
const unsigned char xor_table[] = {
0x05, 0x18, 0x74, 0xd0, 0x0d, 0x09, 0x02, 0x53,
0xc0, 0x01, 0x05, 0x05, 0x67, 0x03, 0x19, 0x70,
0x08, 0x27, 0x66, 0x10, 0x10, 0x72, 0x08, 0x09,
0x63, 0x11, 0x03, 0x71, 0x08, 0x08, 0x70, 0x02,
0x10, 0x57, 0x05, 0x18, 0x54, 0x00, 0x00, 0x00 };
#define BE_32(x) GetDWBE(x)
#define LE_32(x) GetDWLE(x)
#define BE_16(x) GetWBE(x)
#define LE_16(x) GetWLE(x)
#define BE_32C(x,y) do {uint32_t in=y; *(uint32_t *)(x)=GetDWBE(&in);} while(0)
#define LE_32C(x,y) do {uint32_t in=y; *(uint32_t *)(x)=GetDWLE(&in);} while(0)
#define MAX(x,y) ((x>y) ? x : y)
static void hash(char *field, char *param) {
uint32_t a, b, c, d;
/* fill variables */
a = LE_32(field);
b = LE_32(field+4);
c = LE_32(field+8);
d = LE_32(field+12);
lprintf("hash input: %x %x %x %x\n", a, b, c, d);
lprintf("hash parameter:\n");
a = ((b & c) | (~b & d)) + LE_32((param+0x00)) + a - 0x28955B88;
a = ((a << 0x07) | (a >> 0x19)) + b;
d = ((a & b) | (~a & c)) + LE_32((param+0x04)) + d - 0x173848AA;
d = ((d << 0x0c) | (d >> 0x14)) + a;
c = ((d & a) | (~d & b)) + LE_32((param+0x08)) + c + 0x242070DB;
c = ((c << 0x11) | (c >> 0x0f)) + d;
b = ((c & d) | (~c & a)) + LE_32((param+0x0c)) + b - 0x3E423112;
b = ((b << 0x16) | (b >> 0x0a)) + c;
a = ((b & c) | (~b & d)) + LE_32((param+0x10)) + a - 0x0A83F051;
a = ((a << 0x07) | (a >> 0x19)) + b;
d = ((a & b) | (~a & c)) + LE_32((param+0x14)) + d + 0x4787C62A;
d = ((d << 0x0c) | (d >> 0x14)) + a;
c = ((d & a) | (~d & b)) + LE_32((param+0x18)) + c - 0x57CFB9ED;
c = ((c << 0x11) | (c >> 0x0f)) + d;
b = ((c & d) | (~c & a)) + LE_32((param+0x1c)) + b - 0x02B96AFF;
b = ((b << 0x16) | (b >> 0x0a)) + c;
a = ((b & c) | (~b & d)) + LE_32((param+0x20)) + a + 0x698098D8;
a = ((a << 0x07) | (a >> 0x19)) + b;
d = ((a & b) | (~a & c)) + LE_32((param+0x24)) + d - 0x74BB0851;
d = ((d << 0x0c) | (d >> 0x14)) + a;
c = ((d & a) | (~d & b)) + LE_32((param+0x28)) + c - 0x0000A44F;
c = ((c << 0x11) | (c >> 0x0f)) + d;
b = ((c & d) | (~c & a)) + LE_32((param+0x2C)) + b - 0x76A32842;
b = ((b << 0x16) | (b >> 0x0a)) + c;
a = ((b & c) | (~b & d)) + LE_32((param+0x30)) + a + 0x6B901122;
a = ((a << 0x07) | (a >> 0x19)) + b;
d = ((a & b) | (~a & c)) + LE_32((param+0x34)) + d - 0x02678E6D;
d = ((d << 0x0c) | (d >> 0x14)) + a;
c = ((d & a) | (~d & b)) + LE_32((param+0x38)) + c - 0x5986BC72;
c = ((c << 0x11) | (c >> 0x0f)) + d;
b = ((c & d) | (~c & a)) + LE_32((param+0x3c)) + b + 0x49B40821;
b = ((b << 0x16) | (b >> 0x0a)) + c;
a = ((b & d) | (~d & c)) + LE_32((param+0x04)) + a - 0x09E1DA9E;
a = ((a << 0x05) | (a >> 0x1b)) + b;
d = ((a & c) | (~c & b)) + LE_32((param+0x18)) + d - 0x3FBF4CC0;
d = ((d << 0x09) | (d >> 0x17)) + a;
c = ((d & b) | (~b & a)) + LE_32((param+0x2c)) + c + 0x265E5A51;
c = ((c << 0x0e) | (c >> 0x12)) + d;
b = ((c & a) | (~a & d)) + LE_32((param+0x00)) + b - 0x16493856;
b = ((b << 0x14) | (b >> 0x0c)) + c;
a = ((b & d) | (~d & c)) + LE_32((param+0x14)) + a - 0x29D0EFA3;
a = ((a << 0x05) | (a >> 0x1b)) + b;
d = ((a & c) | (~c & b)) + LE_32((param+0x28)) + d + 0x02441453;
d = ((d << 0x09) | (d >> 0x17)) + a;
c = ((d & b) | (~b & a)) + LE_32((param+0x3c)) + c - 0x275E197F;
c = ((c << 0x0e) | (c >> 0x12)) + d;
b = ((c & a) | (~a & d)) + LE_32((param+0x10)) + b - 0x182C0438;
b = ((b << 0x14) | (b >> 0x0c)) + c;
a = ((b & d) | (~d & c)) + LE_32((param+0x24)) + a + 0x21E1CDE6;
a = ((a << 0x05) | (a >> 0x1b)) + b;
d = ((a & c) | (~c & b)) + LE_32((param+0x38)) + d - 0x3CC8F82A;
d = ((d << 0x09) | (d >> 0x17)) + a;
c = ((d & b) | (~b & a)) + LE_32((param+0x0c)) + c - 0x0B2AF279;
c = ((c << 0x0e) | (c >> 0x12)) + d;
b = ((c & a) | (~a & d)) + LE_32((param+0x20)) + b + 0x455A14ED;
b = ((b << 0x14) | (b >> 0x0c)) + c;
a = ((b & d) | (~d & c)) + LE_32((param+0x34)) + a - 0x561C16FB;
a = ((a << 0x05) | (a >> 0x1b)) + b;
d = ((a & c) | (~c & b)) + LE_32((param+0x08)) + d - 0x03105C08;
d = ((d << 0x09) | (d >> 0x17)) + a;
c = ((d & b) | (~b & a)) + LE_32((param+0x1c)) + c + 0x676F02D9;
c = ((c << 0x0e) | (c >> 0x12)) + d;
b = ((c & a) | (~a & d)) + LE_32((param+0x30)) + b - 0x72D5B376;
b = ((b << 0x14) | (b >> 0x0c)) + c;
a = (b ^ c ^ d) + LE_32((param+0x14)) + a - 0x0005C6BE;
a = ((a << 0x04) | (a >> 0x1c)) + b;
d = (a ^ b ^ c) + LE_32((param+0x20)) + d - 0x788E097F;
d = ((d << 0x0b) | (d >> 0x15)) + a;
c = (d ^ a ^ b) + LE_32((param+0x2c)) + c + 0x6D9D6122;
c = ((c << 0x10) | (c >> 0x10)) + d;
b = (c ^ d ^ a) + LE_32((param+0x38)) + b - 0x021AC7F4;
b = ((b << 0x17) | (b >> 0x09)) + c;
a = (b ^ c ^ d) + LE_32((param+0x04)) + a - 0x5B4115BC;
a = ((a << 0x04) | (a >> 0x1c)) + b;
d = (a ^ b ^ c) + LE_32((param+0x10)) + d + 0x4BDECFA9;
d = ((d << 0x0b) | (d >> 0x15)) + a;
c = (d ^ a ^ b) + LE_32((param+0x1c)) + c - 0x0944B4A0;
c = ((c << 0x10) | (c >> 0x10)) + d;
b = (c ^ d ^ a) + LE_32((param+0x28)) + b - 0x41404390;
b = ((b << 0x17) | (b >> 0x09)) + c;
a = (b ^ c ^ d) + LE_32((param+0x34)) + a + 0x289B7EC6;
a = ((a << 0x04) | (a >> 0x1c)) + b;
d = (a ^ b ^ c) + LE_32((param+0x00)) + d - 0x155ED806;
d = ((d << 0x0b) | (d >> 0x15)) + a;
c = (d ^ a ^ b) + LE_32((param+0x0c)) + c - 0x2B10CF7B;
c = ((c << 0x10) | (c >> 0x10)) + d;
b = (c ^ d ^ a) + LE_32((param+0x18)) + b + 0x04881D05;
b = ((b << 0x17) | (b >> 0x09)) + c;
a = (b ^ c ^ d) + LE_32((param+0x24)) + a - 0x262B2FC7;
a = ((a << 0x04) | (a >> 0x1c)) + b;
d = (a ^ b ^ c) + LE_32((param+0x30)) + d - 0x1924661B;
d = ((d << 0x0b) | (d >> 0x15)) + a;
c = (d ^ a ^ b) + LE_32((param+0x3c)) + c + 0x1fa27cf8;
c = ((c << 0x10) | (c >> 0x10)) + d;
b = (c ^ d ^ a) + LE_32((param+0x08)) + b - 0x3B53A99B;
b = ((b << 0x17) | (b >> 0x09)) + c;
a = ((~d | b) ^ c) + LE_32((param+0x00)) + a - 0x0BD6DDBC;
a = ((a << 0x06) | (a >> 0x1a)) + b;
d = ((~c | a) ^ b) + LE_32((param+0x1c)) + d + 0x432AFF97;
d = ((d << 0x0a) | (d >> 0x16)) + a;
c = ((~b | d) ^ a) + LE_32((param+0x38)) + c - 0x546BDC59;
c = ((c << 0x0f) | (c >> 0x11)) + d;
b = ((~a | c) ^ d) + LE_32((param+0x14)) + b - 0x036C5FC7;
b = ((b << 0x15) | (b >> 0x0b)) + c;
a = ((~d | b) ^ c) + LE_32((param+0x30)) + a + 0x655B59C3;
a = ((a << 0x06) | (a >> 0x1a)) + b;
d = ((~c | a) ^ b) + LE_32((param+0x0C)) + d - 0x70F3336E;
d = ((d << 0x0a) | (d >> 0x16)) + a;
c = ((~b | d) ^ a) + LE_32((param+0x28)) + c - 0x00100B83;
c = ((c << 0x0f) | (c >> 0x11)) + d;
b = ((~a | c) ^ d) + LE_32((param+0x04)) + b - 0x7A7BA22F;
b = ((b << 0x15) | (b >> 0x0b)) + c;
a = ((~d | b) ^ c) + LE_32((param+0x20)) + a + 0x6FA87E4F;
a = ((a << 0x06) | (a >> 0x1a)) + b;
d = ((~c | a) ^ b) + LE_32((param+0x3c)) + d - 0x01D31920;
d = ((d << 0x0a) | (d >> 0x16)) + a;
c = ((~b | d) ^ a) + LE_32((param+0x18)) + c - 0x5CFEBCEC;
c = ((c << 0x0f) | (c >> 0x11)) + d;
b = ((~a | c) ^ d) + LE_32((param+0x34)) + b + 0x4E0811A1;
b = ((b << 0x15) | (b >> 0x0b)) + c;
a = ((~d | b) ^ c) + LE_32((param+0x10)) + a - 0x08AC817E;
a = ((a << 0x06) | (a >> 0x1a)) + b;
d = ((~c | a) ^ b) + LE_32((param+0x2c)) + d - 0x42C50DCB;
d = ((d << 0x0a) | (d >> 0x16)) + a;
c = ((~b | d) ^ a) + LE_32((param+0x08)) + c + 0x2AD7D2BB;
c = ((c << 0x0f) | (c >> 0x11)) + d;
b = ((~a | c) ^ d) + LE_32((param+0x24)) + b - 0x14792C6F;
b = ((b << 0x15) | (b >> 0x0b)) + c;
lprintf("hash output: %x %x %x %x\n", a, b, c, d);
a += LE_32(field);
b += LE_32(field+4);
c += LE_32(field+8);
d += LE_32(field+12);
LE_32C(field, a);
LE_32C(field+4, b);
LE_32C(field+8, c);
LE_32C(field+12, d);