[Mplayer-cvslog] CVS: main/libmpdemux/realrtsp asmrp.c,NONE,1.1 asmrp.h,NONE,1.1 real.c,NONE,1.1 real.h,NONE,1.1 rmff.c,NONE,1.1 rmff.h,NONE,1.1 rtsp.c,NONE,1.1 rtsp.h,NONE,1.1 rtsp_session.c,NONE,1.1 rtsp_session.h,NONE,1.1 sdpplin.c,NONE,1.1 sdpplin.h,NONE,1.1 xbuffer.c,NONE,1.1 xbuffer.h,NONE,1.1

Roberto Togni CVS rtognimp at mplayerhq.hu
Thu Apr 17 22:39:08 CEST 2003


Update of /cvsroot/mplayer/main/libmpdemux/realrtsp
In directory mail:/var/tmp.root/cvs-serv21232

Added Files:
	asmrp.c asmrp.h real.c real.h rmff.c rmff.h rtsp.c rtsp.h 
	rtsp_session.c rtsp_session.h sdpplin.c sdpplin.h xbuffer.c 
	xbuffer.h 
Log Message:
Real rstp:// streaming support, ported from xine

--- NEW FILE ---
/*
 * This file was ported to MPlayer from xine CVS asmrp.c,v 1.2 2002/12/17 16:49:48
 */

/*
 * Copyright (C) 2002 the xine project
 *
 * This file is part of xine, a free video player.
 * 
 * xine 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.
 *
 * xine 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  02111-1307, USA
 *
 *
 * a parser for real's asm rules
 *
 * grammar for these rules:
 *

   rule_book  = { rule }
   rule       = ( '#' condition { ',' assignment } | [ assignment {',' assignment} ]) ';'
   assignment = id '=' const
   const      = ( number | string )
   condition  = comp_expr { ( '&&' | '||' ) comp_expr }
   comp_expr  = operand { ( '<' | '<=' | '==' | '>=' | '>' ) operand }
   operand    = ( '$' id | num | '(' condition ')' )

 */

#include <stdlib.h>
#include <stdio.h>
#include <string.h>

/*
#define LOG
*/

#define ASMRP_SYM_NONE         0
#define ASMRP_SYM_EOF          1

#define ASMRP_SYM_NUM          2
#define ASMRP_SYM_ID           3
#define ASMRP_SYM_STRING       4

#define ASMRP_SYM_HASH         10
#define ASMRP_SYM_SEMICOLON    11
#define ASMRP_SYM_COMMA        12
#define ASMRP_SYM_EQUALS       13
#define ASMRP_SYM_AND          14
#define ASMRP_SYM_OR           15
#define ASMRP_SYM_LESS         16
#define ASMRP_SYM_LEQ          17
#define ASMRP_SYM_GEQ          18
#define ASMRP_SYM_GREATER      19
#define ASMRP_SYM_DOLLAR       20
#define ASMRP_SYM_LPAREN       21
#define ASMRP_SYM_RPAREN       22

#define ASMRP_MAX_ID         1024

#define ASMRP_MAX_SYMTAB       10

typedef struct {
  char *id;
  int   v;
} asmrp_sym_t;

typedef struct {

  /* public part */

  int         sym;
  int         num;
  
  char        str[ASMRP_MAX_ID];

  /* private part */

  char       *buf;
  int         pos;
  char        ch;

  asmrp_sym_t sym_tab[ASMRP_MAX_SYMTAB];
  int         sym_tab_num;

} asmrp_t;

static asmrp_t *asmrp_new () {

  asmrp_t *p;

  p = malloc (sizeof (asmrp_t));

  p->sym_tab_num = 0;
  p->sym         = ASMRP_SYM_NONE;

  return p;
}

static void asmrp_dispose (asmrp_t *p) {

  int i;

  for (i=0; i<p->sym_tab_num; i++) 
    free (p->sym_tab[i].id);

  free (p);
}

static void asmrp_getch (asmrp_t *p) {
  p->ch = p->buf[p->pos];
  p->pos++;

#ifdef LOG
  printf ("%c\n", p->ch);
#endif

}

static void asmrp_init (asmrp_t *p, const char *str) {

  p->buf = strdup (str);
  p->pos = 0;
  
  asmrp_getch (p);
}

static void asmrp_number (asmrp_t *p) {

  int num;

  num = 0;
  while ( (p->ch>='0') && (p->ch<='9') ) {

    num = num*10 + (p->ch - '0');

    asmrp_getch (p);
  }

  p->sym = ASMRP_SYM_NUM;
  p->num = num;
}

static void asmrp_string (asmrp_t *p) {

  int l;

  l = 0;

  while ( (p->ch!='"') && (p->ch>=32) ) {

    p->str[l] = p->ch;

    l++;
    asmrp_getch (p);
  }
  p->str[l]=0;
  
  if (p->ch=='"')
    asmrp_getch (p);
  
  p->sym = ASMRP_SYM_STRING;
}

static void asmrp_identifier (asmrp_t *p) {

  int l;

  l = 0;

  while ( ((p->ch>='A') && (p->ch<='z'))
	  || ((p->ch>='0') && (p->ch<='9'))) {

    p->str[l] = p->ch;

    l++;
    asmrp_getch (p);
  }
  p->str[l]=0;
  
  p->sym = ASMRP_SYM_ID;
}

#ifdef LOG
static void asmrp_print_sym (asmrp_t *p) {

  printf ("symbol: ");

  switch (p->sym) {

  case ASMRP_SYM_NONE:
    printf ("NONE\n");
    break;

  case ASMRP_SYM_EOF:
    printf ("EOF\n");
    break;

  case ASMRP_SYM_NUM:
    printf ("NUM %d\n", p->num);
    break;

  case ASMRP_SYM_ID:
    printf ("ID '%s'\n", p->str);
    break;

  case ASMRP_SYM_STRING:
    printf ("STRING \"%s\"\n", p->str);
    break;

  case ASMRP_SYM_HASH:
    printf ("#\n");
    break;

  case ASMRP_SYM_SEMICOLON:
    printf (";\n");
    break;
  case ASMRP_SYM_COMMA:
    printf (",\n");
    break;
  case ASMRP_SYM_EQUALS:
    printf ("==\n");
    break;
  case ASMRP_SYM_AND:
    printf ("&&\n");
    break;
  case ASMRP_SYM_OR:
    printf ("||\n");
    break;
  case ASMRP_SYM_LESS:
    printf ("<\n");
    break;
  case ASMRP_SYM_LEQ:
    printf ("<=\n");
    break;
  case ASMRP_SYM_GEQ:
    printf (">=\n");
    break;
  case ASMRP_SYM_GREATER:
    printf (">\n");
    break;
  case ASMRP_SYM_DOLLAR:
    printf ("$\n");
    break;
  case ASMRP_SYM_LPAREN:
    printf ("(\n");
    break;
  case ASMRP_SYM_RPAREN:
    printf (")\n");
    break;

  default:
    printf ("unknown symbol %d\n", p->sym);
  }
}
#endif

static void asmrp_get_sym (asmrp_t *p) {

  while (p->ch <= 32) {
    if (p->ch == 0) {
      p->sym = ASMRP_SYM_EOF;
      return;
    }

    asmrp_getch (p);
  }

  if (p->ch == '\\')
    asmrp_getch (p);

  switch (p->ch) {

  case '#':
    p->sym = ASMRP_SYM_HASH;
    asmrp_getch (p);
    break;
  case ';':
    p->sym = ASMRP_SYM_SEMICOLON;
    asmrp_getch (p);
    break;
  case ',':
    p->sym = ASMRP_SYM_COMMA;
    asmrp_getch (p);
    break;
  case '=':
    p->sym = ASMRP_SYM_EQUALS;
    asmrp_getch (p);
    if (p->ch=='=')
      asmrp_getch (p);
    break;
  case '&':
    p->sym = ASMRP_SYM_AND;
    asmrp_getch (p);
    if (p->ch=='&')
      asmrp_getch (p);
    break;
  case '|':
    p->sym = ASMRP_SYM_OR;
    asmrp_getch (p);
    if (p->ch=='|')
      asmrp_getch (p);
    break;
  case '<':
    p->sym = ASMRP_SYM_LESS;
    asmrp_getch (p);
    if (p->ch=='=') {
      p->sym = ASMRP_SYM_LEQ;
      asmrp_getch (p);
    }
    break;
  case '>':
    p->sym = ASMRP_SYM_GREATER;
    asmrp_getch (p);
    if (p->ch=='=') {
      p->sym = ASMRP_SYM_GEQ;
      asmrp_getch (p);
    }
    break;
  case '$':
    p->sym = ASMRP_SYM_DOLLAR;
    asmrp_getch (p);
    break;
  case '(':
    p->sym = ASMRP_SYM_LPAREN;
    asmrp_getch (p);
    break;
  case ')':
    p->sym = ASMRP_SYM_RPAREN;
    asmrp_getch (p);
    break;

  case '"':
    asmrp_getch (p);
    asmrp_string (p);
    break;

  case '0': case '1': case '2': case '3': case '4':
  case '5': case '6': case '7': case '8': case '9':
    asmrp_number (p);
    break;

  default:
    asmrp_identifier (p);
  }

#ifdef LOG
  asmrp_print_sym (p);
#endif

}

static int asmrp_find_id (asmrp_t *p, char *s) {

  int i;

  for (i=0; i<p->sym_tab_num; i++) {
    if (!strcmp (s, p->sym_tab[i].id))
      return i;
  }

  return -1;
}

static int asmrp_set_id (asmrp_t *p, char *s, int v) {

  int i;

  i = asmrp_find_id (p, s);

  if (i<0) {
    i = p->sym_tab_num;
    p->sym_tab_num++;
    p->sym_tab[i].id = strdup (s);

#ifdef LOG
    printf ("new symbol '%s'\n", s);
#endif

  }    

  p->sym_tab[i].v = v;
 
#ifdef LOG
  printf ("symbol '%s' assigned %d\n", s, v);
#endif

  return i;
}

static int asmrp_condition (asmrp_t *p) ;

static int asmrp_operand (asmrp_t *p) {

  int i, ret;
  
#ifdef LOG
  printf ("operand\n");
#endif

  ret = 0;

  switch (p->sym) {

  case ASMRP_SYM_DOLLAR:

    asmrp_get_sym (p);
    
    if (p->sym != ASMRP_SYM_ID) {
      printf ("error: identifier expected.\n");
      abort();
    }

    i = asmrp_find_id (p, p->str);
    if (i<0) {
      printf ("error: unknown identifier %s\n", p->str);
    }
    ret = p->sym_tab[i].v;

    asmrp_get_sym (p);
    break;

  case ASMRP_SYM_NUM:
    ret = p->num;

    asmrp_get_sym (p);
    break;

  case ASMRP_SYM_LPAREN:
    asmrp_get_sym (p);

    ret = asmrp_condition (p);

    if (p->sym != ASMRP_SYM_RPAREN) {
      printf ("error: ) expected.\n");
      abort();
    }

    asmrp_get_sym (p);
    break;

  default:
    printf ("syntax error, $ number or ( expected\n");
    abort();
  }

#ifdef LOG
  printf ("operand done, =%d\n", ret);
#endif
  
  return ret;
}

static int asmrp_comp_expression (asmrp_t *p) {

  int a;

#ifdef LOG
  printf ("comp_expression\n");
#endif

  a = asmrp_operand (p);

  while ( (p->sym == ASMRP_SYM_LESS)
	  || (p->sym == ASMRP_SYM_LEQ)
	  || (p->sym == ASMRP_SYM_EQUALS)
	  || (p->sym == ASMRP_SYM_GEQ)
	  || (p->sym == ASMRP_SYM_GREATER) ) {
    int op = p->sym;
    int b;

    asmrp_get_sym (p);

    b = asmrp_operand (p);

    switch (op) {
    case ASMRP_SYM_LESS:
      a = a<b;
      break;
    case ASMRP_SYM_LEQ:
      a = a<=b;
      break;
    case ASMRP_SYM_EQUALS:
      a = a==b;
      break;
    case ASMRP_SYM_GEQ:
      a = a>=b;
      break;
    case ASMRP_SYM_GREATER:
      a = a>b;
      break;
    }

  }

#ifdef LOG
  printf ("comp_expression done = %d\n", a);
#endif
  return a;
}

static int asmrp_condition (asmrp_t *p) {
  
  int a;

#ifdef LOG
  printf ("condition\n");
#endif

  a = asmrp_comp_expression (p);

  while ( (p->sym == ASMRP_SYM_AND) || (p->sym == ASMRP_SYM_OR) ) {
    int op, b;

    op = p->sym;

    asmrp_get_sym (p);

    b = asmrp_comp_expression (p);

    switch (op) {
    case ASMRP_SYM_AND:
      a = a & b;
      break;
    case ASMRP_SYM_OR:
      a = a | b;
      break;
    }
  }

#ifdef LOG
  printf ("condition done = %d\n", a);
#endif
  return a;
}

static void asmrp_assignment (asmrp_t *p) {

#ifdef LOG
  printf ("assignment\n");
#endif

  if (p->sym != ASMRP_SYM_ID) {
    printf ("error: identifier expected\n");
    abort ();
  }
  asmrp_get_sym (p);

  if (p->sym != ASMRP_SYM_EQUALS) {
    printf ("error: = expected\n");
    abort ();
  }
  asmrp_get_sym (p);

  if ( (p->sym != ASMRP_SYM_NUM) && (p->sym != ASMRP_SYM_STRING) 
       && (p->sym != ASMRP_SYM_ID)) {
    printf ("error: number or string expected\n");
    abort ();
  }
  asmrp_get_sym (p);

#ifdef LOG
  printf ("assignment done\n");
#endif
}

static int asmrp_rule (asmrp_t *p) {
  
  int ret;

#ifdef LOG
  printf ("rule\n");
#endif

  ret = 1;
  
  if (p->sym == ASMRP_SYM_HASH) {

    asmrp_get_sym (p);
    ret = asmrp_condition (p);

    while (p->sym == ASMRP_SYM_COMMA) {
      
      asmrp_get_sym (p);
      
      asmrp_assignment (p);
    }

  } else if (p->sym != ASMRP_SYM_SEMICOLON) {

    asmrp_assignment (p);

    while (p->sym == ASMRP_SYM_COMMA) {

      asmrp_get_sym (p);
      asmrp_assignment (p);
    }
  }

#ifdef LOG
  printf ("rule done = %d\n", ret);
#endif

  if (p->sym != ASMRP_SYM_SEMICOLON) {
    printf ("semicolon expected.\n");
    abort ();
  }

  asmrp_get_sym (p);

  return ret;
}

static int asmrp_eval (asmrp_t *p, int *matches) {

  int rule_num, num_matches;

#ifdef LOG
  printf ("eval\n");
#endif

  asmrp_get_sym (p);

  rule_num = 0; num_matches = 0;
  while (p->sym != ASMRP_SYM_EOF) {

    if (asmrp_rule (p)) {
#ifdef LOG
      printf ("rule #%d is true\n", rule_num);
#endif
      matches[num_matches] = rule_num;
      num_matches++;
    }

    rule_num++;
  }

  matches[num_matches] = -1;
  return num_matches;
}

int asmrp_match (const char *rules, int bandwidth, int *matches) {

  asmrp_t *p;
  int      num_matches;

  p = asmrp_new ();

  asmrp_init (p, rules);

  asmrp_set_id (p, "Bandwidth", bandwidth);
  asmrp_set_id (p, "OldPNMPlayer", 0);

  num_matches = asmrp_eval (p, matches);

  asmrp_dispose (p);

  return num_matches;
}


--- NEW FILE ---
/*
 * This file was ported to MPlayer from xine CVS asmrp.h,v 1.1 2002/12/12 22:14:54
 */

/*
 * Copyright (C) 2002 the xine project
 *
 * This file is part of xine, a free video player.
 *
 * xine 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.
 *
 * xine 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  02111-1307, USA
 *
 *
 * a parser for real's asm rules
 *
 * grammar for these rules:
 *

   rule_book  = { '#' rule ';'}
   rule       = condition {',' assignment}
   assignment = id '=' const
   const      = ( number | string )
   condition  = comp_expr { ( '&&' | '||' ) comp_expr }
   comp_expr  = operand { ( '<' | '<=' | '==' | '>=' | '>' ) operand }
   operand    = ( '$' id | num | '(' condition ')' )

 */

#ifndef HAVE_ASMRP_H
#define HAVE_ASMRP_H

int asmrp_match (const char *rules, int bandwidth, int *matches) ;

#endif

--- NEW FILE ---
/*
 * This file was ported to MPlayer from xine CVS real.c,v 1.8 2003/03/30 17:11:50
 */

/*
 * Copyright (C) 2002 the xine project
 *
 * This file is part of xine, a free video player.
 *
 * xine 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.
 *
 * xine 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  02111-1307, USA
 *
 *
 * special functions for real streams.
 * adopted from joschkas real tools.
 *
 */

#include <stdio.h>
#include <string.h>

#include "real.h"
#include "asmrp.h"
#include "sdpplin.h"

/*
#define LOG
*/

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_32C(x,y) x[3]=(char)(y & 0xff);\
    x[2]=(char)((y >> 8) & 0xff);\
    x[1]=(char)((y >> 16) & 0xff);\
    x[0]=(char)((y >> 24) & 0xff);

#define BE_16(x)  ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])

#define BE_32(x)  ((((uint8_t*)(x))[0] << 24) | \
                   (((uint8_t*)(x))[1] << 16) | \
                   (((uint8_t*)(x))[2] << 8) | \
                    ((uint8_t*)(x))[3])

#define MAX(x,y) ((x>y) ? x : y)

#ifdef LOG
static void hexdump (const char *buf, int length) {

  int i;

  printf (" hexdump> ");
  for (i = 0; i < length; i++) {
    unsigned char c = buf[i];

    printf ("%02x", c);

    if ((i % 16) == 15)
      printf ("\n         ");

    if ((i % 2) == 1)
      printf (" ");

  }
  printf ("\n");
}
#endif


static void hash(char *field, char *param) {

  uint32_t a, b, c, d;
 

  /* fill variables */
  memcpy(&a, field, sizeof(uint32_t));
  memcpy(&b, &field[4], sizeof(uint32_t));
  memcpy(&c, &field[8], sizeof(uint32_t));
  memcpy(&d, &field[12], sizeof(uint32_t));

#ifdef LOG
  printf("real: hash input: %x %x %x %x\n", a, b, c, d);
  printf("real: hash parameter:\n");
  hexdump(param, 64);
#endif
  
  a = ((b & c) | (~b & d)) + *((uint32_t*)(param+0x00)) + a - 0x28955B88;
  a = ((a << 0x07) | (a >> 0x19)) + b;
  d = ((a & b) | (~a & c)) + *((uint32_t*)(param+0x04)) + d - 0x173848AA;
  d = ((d << 0x0c) | (d >> 0x14)) + a;
  c = ((d & a) | (~d & b)) + *((uint32_t*)(param+0x08)) + c + 0x242070DB;
  c = ((c << 0x11) | (c >> 0x0f)) + d;
  b = ((c & d) | (~c & a)) + *((uint32_t*)(param+0x0c)) + b - 0x3E423112;
  b = ((b << 0x16) | (b >> 0x0a)) + c;
  a = ((b & c) | (~b & d)) + *((uint32_t*)(param+0x10)) + a - 0x0A83F051;
  a = ((a << 0x07) | (a >> 0x19)) + b;
  d = ((a & b) | (~a & c)) + *((uint32_t*)(param+0x14)) + d + 0x4787C62A;
  d = ((d << 0x0c) | (d >> 0x14)) + a;
  c = ((d & a) | (~d & b)) + *((uint32_t*)(param+0x18)) + c - 0x57CFB9ED;
  c = ((c << 0x11) | (c >> 0x0f)) + d;
  b = ((c & d) | (~c & a)) + *((uint32_t*)(param+0x1c)) + b - 0x02B96AFF;
  b = ((b << 0x16) | (b >> 0x0a)) + c;
  a = ((b & c) | (~b & d)) + *((uint32_t*)(param+0x20)) + a + 0x698098D8;
  a = ((a << 0x07) | (a >> 0x19)) + b;
  d = ((a & b) | (~a & c)) + *((uint32_t*)(param+0x24)) + d - 0x74BB0851;
  d = ((d << 0x0c) | (d >> 0x14)) + a;
  c = ((d & a) | (~d & b)) + *((uint32_t*)(param+0x28)) + c - 0x0000A44F;
  c = ((c << 0x11) | (c >> 0x0f)) + d;
  b = ((c & d) | (~c & a)) + *((uint32_t*)(param+0x2C)) + b - 0x76A32842;
  b = ((b << 0x16) | (b >> 0x0a)) + c;
  a = ((b & c) | (~b & d)) + *((uint32_t*)(param+0x30)) + a + 0x6B901122;
  a = ((a << 0x07) | (a >> 0x19)) + b;
  d = ((a & b) | (~a & c)) + *((uint32_t*)(param+0x34)) + d - 0x02678E6D;
  d = ((d << 0x0c) | (d >> 0x14)) + a;
  c = ((d & a) | (~d & b)) + *((uint32_t*)(param+0x38)) + c - 0x5986BC72;
  c = ((c << 0x11) | (c >> 0x0f)) + d;
  b = ((c & d) | (~c & a)) + *((uint32_t*)(param+0x3c)) + b + 0x49B40821;
  b = ((b << 0x16) | (b >> 0x0a)) + c;
  
  a = ((b & d) | (~d & c)) + *((uint32_t*)(param+0x04)) + a - 0x09E1DA9E;
  a = ((a << 0x05) | (a >> 0x1b)) + b;
  d = ((a & c) | (~c & b)) + *((uint32_t*)(param+0x18)) + d - 0x3FBF4CC0;
  d = ((d << 0x09) | (d >> 0x17)) + a;
  c = ((d & b) | (~b & a)) + *((uint32_t*)(param+0x2c)) + c + 0x265E5A51;
  c = ((c << 0x0e) | (c >> 0x12)) + d;
  b = ((c & a) | (~a & d)) + *((uint32_t*)(param+0x00)) + b - 0x16493856;
  b = ((b << 0x14) | (b >> 0x0c)) + c;
  a = ((b & d) | (~d & c)) + *((uint32_t*)(param+0x14)) + a - 0x29D0EFA3;
  a = ((a << 0x05) | (a >> 0x1b)) + b;
  d = ((a & c) | (~c & b)) + *((uint32_t*)(param+0x28)) + d + 0x02441453;
  d = ((d << 0x09) | (d >> 0x17)) + a;
  c = ((d & b) | (~b & a)) + *((uint32_t*)(param+0x3c)) + c - 0x275E197F;
  c = ((c << 0x0e) | (c >> 0x12)) + d;
  b = ((c & a) | (~a & d)) + *((uint32_t*)(param+0x10)) + b - 0x182C0438;
  b = ((b << 0x14) | (b >> 0x0c)) + c;
  a = ((b & d) | (~d & c)) + *((uint32_t*)(param+0x24)) + a + 0x21E1CDE6;
  a = ((a << 0x05) | (a >> 0x1b)) + b;
  d = ((a & c) | (~c & b)) + *((uint32_t*)(param+0x38)) + d - 0x3CC8F82A;
  d = ((d << 0x09) | (d >> 0x17)) + a;
  c = ((d & b) | (~b & a)) + *((uint32_t*)(param+0x0c)) + c - 0x0B2AF279;
  c = ((c << 0x0e) | (c >> 0x12)) + d;
  b = ((c & a) | (~a & d)) + *((uint32_t*)(param+0x20)) + b + 0x455A14ED;
  b = ((b << 0x14) | (b >> 0x0c)) + c;
  a = ((b & d) | (~d & c)) + *((uint32_t*)(param+0x34)) + a - 0x561C16FB;
  a = ((a << 0x05) | (a >> 0x1b)) + b;
  d = ((a & c) | (~c & b)) + *((uint32_t*)(param+0x08)) + d - 0x03105C08;
  d = ((d << 0x09) | (d >> 0x17)) + a;
  c = ((d & b) | (~b & a)) + *((uint32_t*)(param+0x1c)) + c + 0x676F02D9;
  c = ((c << 0x0e) | (c >> 0x12)) + d;
  b = ((c & a) | (~a & d)) + *((uint32_t*)(param+0x30)) + b - 0x72D5B376;
  b = ((b << 0x14) | (b >> 0x0c)) + c;
  
  a = (b ^ c ^ d) + *((uint32_t*)(param+0x14)) + a - 0x0005C6BE;
  a = ((a << 0x04) | (a >> 0x1c)) + b;
  d = (a ^ b ^ c) + *((uint32_t*)(param+0x20)) + d - 0x788E097F;
  d = ((d << 0x0b) | (d >> 0x15)) + a;
  c = (d ^ a ^ b) + *((uint32_t*)(param+0x2c)) + c + 0x6D9D6122;
  c = ((c << 0x10) | (c >> 0x10)) + d;
  b = (c ^ d ^ a) + *((uint32_t*)(param+0x38)) + b - 0x021AC7F4;
  b = ((b << 0x17) | (b >> 0x09)) + c;
  a = (b ^ c ^ d) + *((uint32_t*)(param+0x04)) + a - 0x5B4115BC;
  a = ((a << 0x04) | (a >> 0x1c)) + b;
  d = (a ^ b ^ c) + *((uint32_t*)(param+0x10)) + d + 0x4BDECFA9;
  d = ((d << 0x0b) | (d >> 0x15)) + a;
  c = (d ^ a ^ b) + *((uint32_t*)(param+0x1c)) + c - 0x0944B4A0;
  c = ((c << 0x10) | (c >> 0x10)) + d;
  b = (c ^ d ^ a) + *((uint32_t*)(param+0x28)) + b - 0x41404390;
  b = ((b << 0x17) | (b >> 0x09)) + c;
  a = (b ^ c ^ d) + *((uint32_t*)(param+0x34)) + a + 0x289B7EC6;
  a = ((a << 0x04) | (a >> 0x1c)) + b;
  d = (a ^ b ^ c) + *((uint32_t*)(param+0x00)) + d - 0x155ED806;
  d = ((d << 0x0b) | (d >> 0x15)) + a;
  c = (d ^ a ^ b) + *((uint32_t*)(param+0x0c)) + c - 0x2B10CF7B;
  c = ((c << 0x10) | (c >> 0x10)) + d;
  b = (c ^ d ^ a) + *((uint32_t*)(param+0x18)) + b + 0x04881D05;
  b = ((b << 0x17) | (b >> 0x09)) + c;
  a = (b ^ c ^ d) + *((uint32_t*)(param+0x24)) + a - 0x262B2FC7;
  a = ((a << 0x04) | (a >> 0x1c)) + b;
  d = (a ^ b ^ c) + *((uint32_t*)(param+0x30)) + d - 0x1924661B;
  d = ((d << 0x0b) | (d >> 0x15)) + a;
  c = (d ^ a ^ b) + *((uint32_t*)(param+0x3c)) + c + 0x1fa27cf8;
  c = ((c << 0x10) | (c >> 0x10)) + d;
  b = (c ^ d ^ a) + *((uint32_t*)(param+0x08)) + b - 0x3B53A99B;
  b = ((b << 0x17) | (b >> 0x09)) + c;
  
  a = ((~d | b) ^ c)  + *((uint32_t*)(param+0x00)) + a - 0x0BD6DDBC;
  a = ((a << 0x06) | (a >> 0x1a)) + b; 
  d = ((~c | a) ^ b)  + *((uint32_t*)(param+0x1c)) + d + 0x432AFF97;
  d = ((d << 0x0a) | (d >> 0x16)) + a; 
  c = ((~b | d) ^ a)  + *((uint32_t*)(param+0x38)) + c - 0x546BDC59;
  c = ((c << 0x0f) | (c >> 0x11)) + d; 
  b = ((~a | c) ^ d)  + *((uint32_t*)(param+0x14)) + b - 0x036C5FC7;
  b = ((b << 0x15) | (b >> 0x0b)) + c; 
  a = ((~d | b) ^ c)  + *((uint32_t*)(param+0x30)) + a + 0x655B59C3;
  a = ((a << 0x06) | (a >> 0x1a)) + b; 
  d = ((~c | a) ^ b)  + *((uint32_t*)(param+0x0C)) + d - 0x70F3336E;
  d = ((d << 0x0a) | (d >> 0x16)) + a; 
  c = ((~b | d) ^ a)  + *((uint32_t*)(param+0x28)) + c - 0x00100B83;
  c = ((c << 0x0f) | (c >> 0x11)) + d; 
  b = ((~a | c) ^ d)  + *((uint32_t*)(param+0x04)) + b - 0x7A7BA22F;
  b = ((b << 0x15) | (b >> 0x0b)) + c; 
  a = ((~d | b) ^ c)  + *((uint32_t*)(param+0x20)) + a + 0x6FA87E4F;
  a = ((a << 0x06) | (a >> 0x1a)) + b; 
  d = ((~c | a) ^ b)  + *((uint32_t*)(param+0x3c)) + d - 0x01D31920;
  d = ((d << 0x0a) | (d >> 0x16)) + a; 
  c = ((~b | d) ^ a)  + *((uint32_t*)(param+0x18)) + c - 0x5CFEBCEC;
  c = ((c << 0x0f) | (c >> 0x11)) + d; 
  b = ((~a | c) ^ d)  + *((uint32_t*)(param+0x34)) + b + 0x4E0811A1;
  b = ((b << 0x15) | (b >> 0x0b)) + c; 
  a = ((~d | b) ^ c)  + *((uint32_t*)(param+0x10)) + a - 0x08AC817E;
  a = ((a << 0x06) | (a >> 0x1a)) + b; 
  d = ((~c | a) ^ b)  + *((uint32_t*)(param+0x2c)) + d - 0x42C50DCB;
  d = ((d << 0x0a) | (d >> 0x16)) + a; 
  c = ((~b | d) ^ a)  + *((uint32_t*)(param+0x08)) + c + 0x2AD7D2BB;
  c = ((c << 0x0f) | (c >> 0x11)) + d; 
  b = ((~a | c) ^ d)  + *((uint32_t*)(param+0x24)) + b - 0x14792C6F;
  b = ((b << 0x15) | (b >> 0x0b)) + c; 

#ifdef LOG
  printf("real: hash output: %x %x %x %x\n", a, b, c, d);
#endif
  
  *((uint32_t *)(field+0)) += a;
  *((uint32_t *)(field+4)) += b;
  *((uint32_t *)(field+8)) += c;
  *((uint32_t *)(field+12)) += d;
}

static void call_hash (char *key, char *challenge, int len) {

  uint32_t *ptr1, *ptr2;
  uint32_t a, b, c, d;
  
  ptr1=(uint32_t*)(key+16);
  ptr2=(uint32_t*)(key+20);
  
  a = *ptr1;
  b = (a >> 3) & 0x3f;
  a += len * 8;
  *ptr1 = a;
  
  if (a < (len << 3))
  {
#ifdef LOG
    printf("not verified: (len << 3) > a true\n");
#endif
    ptr2 += 4;
  }

  *ptr2 += (len >> 0x1d);
  a = 64 - b;
  c = 0;  
  if (a <= len)
  {

    memcpy(key+b+24, challenge, a);
    hash(key, key+24);
    c = a;
    d = c + 0x3f;
    
    while ( d < len ) {

#ifdef LOG
      printf("not verified:  while ( d < len )\n");
#endif
      hash(key, challenge+d-0x3f);
      d += 64;
      c += 64;
    }
    b = 0;
  }
  
  memcpy(key+b+24, challenge+c, len-c);
}

static void calc_response (char *result, char *field) {

  char buf1[128];
  char buf2[128];
  int i;

  memset (buf1, 0, 64);
  *buf1 = 128;
  
  memcpy (buf2, field+16, 8);
  
  i = ( *((uint32_t*)(buf2)) >> 3 ) & 0x3f;
 
  if (i < 56) {
    i = 56 - i;
  } else {
#ifdef LOG
    printf("not verified: ! (i < 56)\n");
#endif
    i = 120 - i;
  }

  call_hash (field, buf1, i);
  call_hash (field, buf2, 8);

  memcpy (result, field, 16);

}


static void calc_response_string (char *result, char *challenge) {
 
  char field[128];
  char zres[20];
  int  i;
      
  /* initialize our field */
  BE_32C (field,      0x01234567);
  BE_32C ((field+4),  0x89ABCDEF);
  BE_32C ((field+8),  0xFEDCBA98);
  BE_32C ((field+12), 0x76543210);
  BE_32C ((field+16), 0x00000000);
  BE_32C ((field+20), 0x00000000);

  /* calculate response */
  call_hash(field, challenge, 64);
  calc_response(zres,field);
 
  /* convert zres to ascii string */
  for (i=0; i<16; i++ ) {
    char a, b;
    
    a = (zres[i] >> 4) & 15;
    b = zres[i] & 15;

    result[i*2]   = ((a<10) ? (a+48) : (a+87)) & 255;
    result[i*2+1] = ((b<10) ? (b+48) : (b+87)) & 255;
  }
}

void real_calc_response_and_checksum (char *response, char *chksum, char *challenge) {

  int   ch_len, table_len, resp_len;
  int   i;
  char *ptr;
  char  buf[128];

  /* initialize return values */
  memset(response, 0, 64);
  memset(chksum, 0, 34);

  /* initialize buffer */
  memset(buf, 0, 128);
  ptr=buf;
  BE_32C(ptr, 0xa1e9149d);
  ptr+=4;
  BE_32C(ptr, 0x0e6b3b59);
  ptr+=4;

  /* some (length) checks */
  if (challenge != NULL)
  {
    ch_len = strlen (challenge);

    if (ch_len == 40) /* what a hack... */
    {
      challenge[32]=0;
      ch_len=32;
    }
    if ( ch_len > 56 ) ch_len=56;
    
    /* copy challenge to buf */
    memcpy(ptr, challenge, ch_len);
  }
  
  if (xor_table != NULL)
  {
    table_len = strlen(xor_table);

    if (table_len > 56) table_len=56;

    /* xor challenge bytewise with xor_table */
    for (i=0; i<table_len; i++)
      ptr[i] = ptr[i] ^ xor_table[i];
  }

  calc_response_string (response, buf);

  /* add tail */
  resp_len = strlen (response);
  strcpy (&response[resp_len], "01d0a8e3");

  /* calculate checksum */
  for (i=0; i<resp_len/4; i++)
    chksum[i] = response[i*4];
}


/*
 * takes a MLTI-Chunk and a rule number got from match_asm_rule,
 * returns a pointer to selected data and number of bytes in that.
 */

static int select_mlti_data(const char *mlti_chunk, int mlti_size, int selection, char *out) {

  int numrules, codec, size;
  int i;
  
  /* MLTI chunk should begin with MLTI */

  if ((mlti_chunk[0] != 'M')
      ||(mlti_chunk[1] != 'L')
      ||(mlti_chunk[2] != 'T')
      ||(mlti_chunk[3] != 'I'))
  {
#ifdef LOG
    printf("libreal: MLTI tag not detected, copying data\n");
#endif
    memcpy(out, mlti_chunk, mlti_size);
    return mlti_size;
  }

  mlti_chunk+=4;

  /* next 16 bits are the number of rules */
  numrules=BE_16(mlti_chunk);
  if (selection >= numrules) return 0;

  /* now <numrules> indices of codecs follows */
  /* we skip to selection                     */
  mlti_chunk+=(selection+1)*2;

  /* get our index */
  codec=BE_16(mlti_chunk);

  /* skip to number of codecs */
  mlti_chunk+=(numrules-selection)*2;

  /* get number of codecs */
  numrules=BE_16(mlti_chunk);

  if (codec >= numrules) {
    printf("codec index >= number of codecs. %i %i\n", codec, numrules);
    return 0;
  }

  mlti_chunk+=2;
 
  /* now seek to selected codec */
  for (i=0; i<codec; i++) {
    size=BE_32(mlti_chunk);
    mlti_chunk+=size+4;
  }
  
  size=BE_32(mlti_chunk);

#ifdef LOG
  hexdump(mlti_chunk+4, size);
#endif
  memcpy(out,mlti_chunk+4, size);
  return size;
}

/*
 * looking at stream description.
 */

rmff_header_t *real_parse_sdp(char *data, char *stream_rules, uint32_t bandwidth) {

  sdpplin_t *desc;
  rmff_header_t *header;
  char buf[2048];
  int len, i;
  int max_bit_rate=0;
  int avg_bit_rate=0;
  int max_packet_size=0;
  int avg_packet_size=0;
  int duration=0;
  

  if (!data) return NULL;

  desc=sdpplin_parse(data);

  if (!desc) return NULL;
  
  header=calloc(1,sizeof(rmff_header_t));

  header->fileheader=rmff_new_fileheader(4+desc->stream_count);
  header->cont=rmff_new_cont(
      desc->title,
      desc->author,
      desc->copyright,
      desc->abstract);
  header->data=rmff_new_dataheader(0,0);
  header->streams=calloc(1,sizeof(rmff_mdpr_t*)*(desc->stream_count+1));
#ifdef LOG
    printf("number of streams: %u\n", desc->stream_count);
#endif

  for (i=0; i<desc->stream_count; i++) {

    int j=0;
    int n;
    char b[64];
    int rulematches[16];

#ifdef LOG
    printf("calling asmrp_match with:\n%s\n%u\n", desc->stream[i]->asm_rule_book, bandwidth);
#endif
    n=asmrp_match(desc->stream[i]->asm_rule_book, bandwidth, rulematches);
    for (j=0; j<n; j++) {
#ifdef LOG
      printf("asmrp rule match: %u for stream %u\n", rulematches[j], desc->stream[i]->stream_id);
#endif
      sprintf(b,"stream=%u;rule=%u,", desc->stream[i]->stream_id, rulematches[j]);
      strcat(stream_rules, b);
    }

    if (!desc->stream[i]->mlti_data) return NULL;

    len=select_mlti_data(desc->stream[i]->mlti_data, desc->stream[i]->mlti_data_size, rulematches[0], buf);
    
    header->streams[i]=rmff_new_mdpr(
	desc->stream[i]->stream_id,
        desc->stream[i]->max_bit_rate,
        desc->stream[i]->avg_bit_rate,
        desc->stream[i]->max_packet_size,
        desc->stream[i]->avg_packet_size,
        desc->stream[i]->start_time,
        desc->stream[i]->preroll,
        desc->stream[i]->duration,
        desc->stream[i]->stream_name,
        desc->stream[i]->mime_type,
	len,
	buf);

    duration=MAX(duration,desc->stream[i]->duration);
    max_bit_rate+=desc->stream[i]->max_bit_rate;
    avg_bit_rate+=desc->stream[i]->avg_bit_rate;
    max_packet_size=MAX(max_packet_size, desc->stream[i]->max_packet_size);
    if (avg_packet_size)
      avg_packet_size=(avg_packet_size + desc->stream[i]->avg_packet_size) / 2;
    else
      avg_packet_size=desc->stream[i]->avg_packet_size;
  }
  
  if (stream_rules)
    stream_rules[strlen(stream_rules)-1]=0; /* delete last ',' in stream_rules */

  header->prop=rmff_new_prop(
      max_bit_rate,
      avg_bit_rate,
      max_packet_size,
      avg_packet_size,
      0,
      duration,
      0,
      0,
      0,
      desc->stream_count,
      desc->flags);

  rmff_fix_header(header);

  return header;
}

int real_get_rdt_chunk(rtsp_t *rtsp_session, char *buffer) {

  int n=1;
  uint8_t header[8];
  rmff_pheader_t ph;
  int size;
  int flags1;
  int unknown1;
  uint32_t ts;

  n=rtsp_read_data(rtsp_session, header, 8);
  if (n<8) return 0;
  if (header[0] != 0x24)
  {
    printf("rdt chunk not recognized: got 0x%02x\n", header[0]);
    return 0;
  }
  size=(header[1]<<12)+(header[2]<<8)+(header[3]);
  flags1=header[4];
  if ((flags1!=0x40)&&(flags1!=0x42))
  {
#ifdef LOG
    printf("got flags1: 0x%02x\n",flags1);
#endif
    header[0]=header[5];
    header[1]=header[6];
    header[2]=header[7];
    n=rtsp_read_data(rtsp_session, header+3, 5);
    if (n<5) return 0;
#ifdef LOG
    printf("ignoring bytes:\n");
    hexdump(header, 8);
#endif
    n=rtsp_read_data(rtsp_session, header+4, 4);
    if (n<4) return 0;
    flags1=header[4];
    size-=9;
  }
  unknown1=(header[5]<<12)+(header[6]<<8)+(header[7]);
  n=rtsp_read_data(rtsp_session, header, 6);
  if (n<6) return 0;
  ts=BE_32(header);
  
#ifdef LOG
  printf("ts: %u size: %u, flags: 0x%02x, unknown values: %u 0x%02x 0x%02x\n", 
          ts, size, flags1, unknown1, header[4], header[5]);
#endif
  size+=2;
  
  ph.object_version=0;
  ph.length=size;
  ph.stream_number=(flags1>>1)&1;
  ph.timestamp=ts;
  ph.reserved=0;
  ph.flags=0;      /* TODO: determine keyframe flag and insert here? */
  rmff_dump_pheader(&ph, buffer);
  size-=12;
  n=rtsp_read_data(rtsp_session, buffer+12, size);
  
  return n+12;
}

rmff_header_t  *real_setup_and_get_header(rtsp_t *rtsp_session, uint32_t bandwidth) {

  char *description=NULL;
  char *session_id=NULL;
  rmff_header_t *h;
  char *challenge1;
  char challenge2[64];
  char checksum[34];
  char subscribe[256];
  char buf[256];
  char *mrl=rtsp_get_mrl(rtsp_session);
  unsigned int size;
  int status;
  
  /* get challenge */
  challenge1=strdup(rtsp_search_answers(rtsp_session,"RealChallenge1"));
#ifdef LOG
  printf("real: Challenge1: %s\n", challenge1);
#endif
  
  /* request stream description */
  rtsp_schedule_field(rtsp_session, "Accept: application/sdp");
  sprintf(buf, "Bandwidth: %u", bandwidth);
  rtsp_schedule_field(rtsp_session, buf);
  rtsp_schedule_field(rtsp_session, "GUID: 00000000-0000-0000-0000-000000000000");
  rtsp_schedule_field(rtsp_session, "RegionData: 0");
  rtsp_schedule_field(rtsp_session, "ClientID: Linux_2.4_6.0.9.1235_play32_RN01_EN_586");
  rtsp_schedule_field(rtsp_session, "SupportsMaximumASMBandwidth: 1");
  rtsp_schedule_field(rtsp_session, "Language: en-US");
  rtsp_schedule_field(rtsp_session, "Require: com.real.retain-entity-for-setup");
  status=rtsp_request_describe(rtsp_session,NULL);

  if ( status<200 || status>299 )
  {
    char *alert=rtsp_search_answers(rtsp_session,"Alert");
    if (alert) {
      printf("real: got message from server:\n%s\n", alert);
    }
    rtsp_send_ok(rtsp_session);
    return NULL;
  }

  /* receive description */
  size=0;
  if (!rtsp_search_answers(rtsp_session,"Content-length"))
    printf("real: got no Content-length!\n");
  else
    size=atoi(rtsp_search_answers(rtsp_session,"Content-length"));

  if (!rtsp_search_answers(rtsp_session,"ETag"))
    printf("real: got no ETag!\n");
  else
    session_id=strdup(rtsp_search_answers(rtsp_session,"ETag"));
    
#ifdef LOG
  printf("real: Stream description size: %i\n", size);
#endif

  description=malloc(sizeof(char)*(size+1));

  rtsp_read_data(rtsp_session, description, size);
  description[size]=0;

  /* parse sdp (sdpplin) and create a header and a subscribe string */
  strcpy(subscribe, "Subscribe: ");
  h=real_parse_sdp(description, subscribe+11, bandwidth);
  if (!h) return NULL;
  rmff_fix_header(h);

#ifdef LOG
  printf("Title: %s\nCopyright: %s\nAuthor: %s\nStreams: %i\n",
    h->cont->title, h->cont->copyright, h->cont->author, h->prop->num_streams);
#endif
  
  /* setup our streams */
  real_calc_response_and_checksum (challenge2, checksum, challenge1);
  sprintf(buf, "RealChallenge2: %s, sd=%s", challenge2, checksum);
  rtsp_schedule_field(rtsp_session, buf);
  sprintf(buf, "If-Match: %s", session_id);
  rtsp_schedule_field(rtsp_session, buf);
  rtsp_schedule_field(rtsp_session, "Transport: x-pn-tng/tcp;mode=play,rtp/avp/tcp;unicast;mode=play");
  sprintf(buf, "%s/streamid=0", mrl);
  rtsp_request_setup(rtsp_session,buf);

  if (h->prop->num_streams > 1) {
    rtsp_schedule_field(rtsp_session, "Transport: x-pn-tng/tcp;mode=play,rtp/avp/tcp;unicast;mode=play");
    sprintf(buf, "If-Match: %s", session_id);
    rtsp_schedule_field(rtsp_session, buf);

    sprintf(buf, "%s/streamid=1", mrl);
    rtsp_request_setup(rtsp_session,buf);
  }
  /* set stream parameter (bandwidth) with our subscribe string */
  rtsp_schedule_field(rtsp_session, subscribe);
  rtsp_request_setparameter(rtsp_session,NULL);

  /* and finally send a play request */
  rtsp_schedule_field(rtsp_session, "Range: npt=0-");
  rtsp_request_play(rtsp_session,NULL);

  return h;
}


--- NEW FILE ---
/*
 * This file was ported to MPlayer from xine CVS real.h,v 1.2 2002/12/24 01:30:22
 */

/*
 * Copyright (C) 2002 the xine project
 *
 * This file is part of xine, a free video player.
 *
 * xine 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.
 *
 * xine 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  02111-1307, USA
 *
 *
 * special functions for real streams.
 * adopted from joschkas real tools.
 *
 */
 
#ifndef HAVE_REAL_H
#define HAVE_REAL_H

#include "rmff.h"
#include "rtsp.h"

#ifdef __CYGWIN__
#define uint32_t unsigned int
#define uint16_t unsigned short int
#define uint8_t unsigned char
#endif

/*
 * calculates response and checksum of a given challenge
 * (RealChallenge1 in rtsp). See implementation for details.
 */
void real_calc_response_and_checksum (char *response, char *chksum, char *challenge);
int real_get_rdt_chunk(rtsp_t *rtsp_session, char *buffer);
rmff_header_t *real_parse_sdp(char *data, char *stream_rules, uint32_t bandwidth);
rmff_header_t *real_setup_and_get_header(rtsp_t *rtsp_session, uint32_t bandwidth);

#endif


--- NEW FILE ---
/*
 * This file was ported to MPlayer from xine CVS rmff.c,v 1.3 2002/12/24 01:30:22
 */

/*
 * Copyright (C) 2002 the xine project
 *
 * This file is part of xine, a free video player.
 *
 * xine 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.
 *
 * xine 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  02111-1307, USA
 *
 *
 * functions for real media file format
 * adopted from joschkas real tools
 */

#include "rmff.h"
#include "xbuffer.h"

/*
#define LOG
*/

#define BE_16(x)  ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
#define BE_32(x)  ((((uint8_t*)(x))[0] << 24) | \
                   (((uint8_t*)(x))[1] << 16) | \
                   (((uint8_t*)(x))[2] << 8) | \
                    ((uint8_t*)(x))[3])

static void hexdump (const char *buf, int length) {

  int i;

  printf ("rmff: ascii>");
  for (i = 0; i < length; i++) {
    unsigned char c = buf[i];

    if ((c >= 32) && (c <= 128))
      printf ("%c", c);
    else
      printf (".");
  }
  printf ("\n");

  printf ("rmff: hexdump> ");
  for (i = 0; i < length; i++) {
    unsigned char c = buf[i];

    printf ("%02x", c);

    if ((i % 16) == 15)
      printf ("\nrmff:         ");

    if ((i % 2) == 1)
      printf (" ");

  }
  printf ("\n");
}

/*
 * writes header data to a buffer
 */

static void rmff_dump_fileheader(rmff_fileheader_t *fileheader, char *buffer) {

  if (!fileheader) return;
  fileheader->object_id=BE_32(&fileheader->object_id);
  fileheader->size=BE_32(&fileheader->size);
  fileheader->object_version=BE_16(&fileheader->object_version);
  fileheader->file_version=BE_32(&fileheader->file_version);
  fileheader->num_headers=BE_32(&fileheader->num_headers);
  
  memcpy(buffer, fileheader, 8);
  memcpy(&buffer[8], &fileheader->object_version, 2);
  memcpy(&buffer[10], &fileheader->file_version, 8);

  fileheader->size=BE_32(&fileheader->size);
  fileheader->object_version=BE_16(&fileheader->object_version);
  fileheader->file_version=BE_32(&fileheader->file_version);
  fileheader->num_headers=BE_32(&fileheader->num_headers);
  fileheader->object_id=BE_32(&fileheader->object_id);
}

static void rmff_dump_prop(rmff_prop_t *prop, char *buffer) {

  if (!prop) return;
  prop->object_id=BE_32(&prop->object_id);
  prop->size=BE_32(&prop->size);
  prop->object_version=BE_16(&prop->object_version);
  prop->max_bit_rate=BE_32(&prop->max_bit_rate);
  prop->avg_bit_rate=BE_32(&prop->avg_bit_rate);
  prop->max_packet_size=BE_32(&prop->max_packet_size);
  prop->avg_packet_size=BE_32(&prop->avg_packet_size);
  prop->num_packets=BE_32(&prop->num_packets);
  prop->duration=BE_32(&prop->duration);
  prop->preroll=BE_32(&prop->preroll);
  prop->index_offset=BE_32(&prop->index_offset);
  prop->data_offset=BE_32(&prop->data_offset);
  prop->num_streams=BE_16(&prop->num_streams);
  prop->flags=BE_16(&prop->flags);

  memcpy(buffer, prop, 8);
  memcpy(&buffer[8], &prop->object_version, 2);
  memcpy(&buffer[10], &prop->max_bit_rate, 36);
  memcpy(&buffer[46], &prop->num_streams, 2);
  memcpy(&buffer[48], &prop->flags, 2);
  
  prop->size=BE_32(&prop->size);
  prop->object_version=BE_16(&prop->object_version);
  prop->max_bit_rate=BE_32(&prop->max_bit_rate);
  prop->avg_bit_rate=BE_32(&prop->avg_bit_rate);
  prop->max_packet_size=BE_32(&prop->max_packet_size);
  prop->avg_packet_size=BE_32(&prop->avg_packet_size);
  prop->num_packets=BE_32(&prop->num_packets);
  prop->duration=BE_32(&prop->duration);
  prop->preroll=BE_32(&prop->preroll);
  prop->index_offset=BE_32(&prop->index_offset);
  prop->data_offset=BE_32(&prop->data_offset);
  prop->num_streams=BE_16(&prop->num_streams);
  prop->flags=BE_16(&prop->flags);
  prop->object_id=BE_32(&prop->object_id);
}

static void rmff_dump_mdpr(rmff_mdpr_t *mdpr, char *buffer) {

  int s1, s2, s3;

  if (!mdpr) return;
  mdpr->object_id=BE_32(&mdpr->object_id);
  mdpr->size=BE_32(&mdpr->size);
  mdpr->object_version=BE_16(&mdpr->object_version);
  mdpr->stream_number=BE_16(&mdpr->stream_number);
  mdpr->max_bit_rate=BE_32(&mdpr->max_bit_rate);
  mdpr->avg_bit_rate=BE_32(&mdpr->avg_bit_rate);
  mdpr->max_packet_size=BE_32(&mdpr->max_packet_size);
  mdpr->avg_packet_size=BE_32(&mdpr->avg_packet_size);
  mdpr->start_time=BE_32(&mdpr->start_time);
  mdpr->preroll=BE_32(&mdpr->preroll);
  mdpr->duration=BE_32(&mdpr->duration);

  memcpy(buffer, mdpr, 8);
  memcpy(&buffer[8], &mdpr->object_version, 2);
  memcpy(&buffer[10], &mdpr->stream_number, 2);
  memcpy(&buffer[12], &mdpr->max_bit_rate, 28);
  memcpy(&buffer[40], &mdpr->stream_name_size, 1);
  s1=mdpr->stream_name_size;
  memcpy(&buffer[41], mdpr->stream_name, s1);

  memcpy(&buffer[41+s1], &mdpr->mime_type_size, 1);
  s2=mdpr->mime_type_size;
  memcpy(&buffer[42+s1], mdpr->mime_type, s2);
  
  mdpr->type_specific_len=BE_32(&mdpr->type_specific_len);
  memcpy(&buffer[42+s1+s2], &mdpr->type_specific_len, 4);
  mdpr->type_specific_len=BE_32(&mdpr->type_specific_len);
  s3=mdpr->type_specific_len;
  memcpy(&buffer[46+s1+s2], mdpr->type_specific_data, s3);

  mdpr->size=BE_32(&mdpr->size);
  mdpr->stream_number=BE_16(&mdpr->stream_number);
  mdpr->max_bit_rate=BE_32(&mdpr->max_bit_rate);
  mdpr->avg_bit_rate=BE_32(&mdpr->avg_bit_rate);
  mdpr->max_packet_size=BE_32(&mdpr->max_packet_size);
  mdpr->avg_packet_size=BE_32(&mdpr->avg_packet_size);
  mdpr->start_time=BE_32(&mdpr->start_time);
  mdpr->preroll=BE_32(&mdpr->preroll);
  mdpr->duration=BE_32(&mdpr->duration);
  mdpr->object_id=BE_32(&mdpr->object_id);

}

static void rmff_dump_cont(rmff_cont_t *cont, char *buffer) {

  int p;

  if (!cont) return;
  cont->object_id=BE_32(&cont->object_id);
  cont->size=BE_32(&cont->size);
  cont->object_version=BE_16(&cont->object_version);

  memcpy(buffer, cont, 8);
  memcpy(&buffer[8], &cont->object_version, 2);
  
  cont->title_len=BE_16(&cont->title_len);
  memcpy(&buffer[10], &cont->title_len, 2);
  cont->title_len=BE_16(&cont->title_len);
  memcpy(&buffer[12], cont->title, cont->title_len);
  p=12+cont->title_len;

  cont->author_len=BE_16(&cont->author_len);
  memcpy(&buffer[p], &cont->author_len, 2);
  cont->author_len=BE_16(&cont->author_len);
  memcpy(&buffer[p+2], cont->author, cont->author_len);
  p+=2+cont->author_len;

  cont->copyright_len=BE_16(&cont->copyright_len);
  memcpy(&buffer[p], &cont->copyright_len, 2);
  cont->copyright_len=BE_16(&cont->copyright_len);
  memcpy(&buffer[p+2], cont->copyright, cont->copyright_len);
  p+=2+cont->copyright_len;

  cont->comment_len=BE_16(&cont->comment_len);
  memcpy(&buffer[p], &cont->comment_len, 2);
  cont->comment_len=BE_16(&cont->comment_len);
  memcpy(&buffer[p+2], cont->comment, cont->comment_len);

  cont->size=BE_32(&cont->size);
  cont->object_version=BE_16(&cont->object_version);
  cont->object_id=BE_32(&cont->object_id);
}

static void rmff_dump_dataheader(rmff_data_t *data, char *buffer) {

  if (!data) return;
  data->object_id=BE_32(&data->object_id);
  data->size=BE_32(&data->size);
  data->object_version=BE_16(&data->object_version);
  data->num_packets=BE_32(&data->num_packets);
  data->next_data_header=BE_32(&data->next_data_header);

  memcpy(buffer, data, 8);
  memcpy(&buffer[8], &data->object_version, 2);
  memcpy(&buffer[10], &data->num_packets, 8);
  
  data->num_packets=BE_32(&data->num_packets);
  data->next_data_header=BE_32(&data->next_data_header);
  data->size=BE_32(&data->size);
  data->object_version=BE_16(&data->object_version);
  data->object_id=BE_32(&data->object_id);
}

int rmff_dump_header(rmff_header_t *h, char *buffer, int max) {

  int written=0;
  rmff_mdpr_t **stream=h->streams;

  rmff_dump_fileheader(h->fileheader, &buffer[written]);
  written+=h->fileheader->size;
  rmff_dump_prop(h->prop, &buffer[written]);
  written+=h->prop->size;
  rmff_dump_cont(h->cont, &buffer[written]);
  written+=h->cont->size;
  if (stream)
  {
    while(*stream)
    {
      rmff_dump_mdpr(*stream, &buffer[written]);
      written+=(*stream)->size;
      stream++;
    }
  }
    
  rmff_dump_dataheader(h->data, &buffer[written]);
  written+=18;

  return written;
}

void rmff_dump_pheader(rmff_pheader_t *h, char *data) {

  data[0]=(h->object_version>>8) & 0xff;
  data[1]=h->object_version & 0xff;
  data[2]=(h->length>>8) & 0xff;
  data[3]=h->length & 0xff;
  data[4]=(h->stream_number>>8) & 0xff;
  data[5]=h->stream_number & 0xff;
  data[6]=(h->timestamp>>24) & 0xff;
  data[7]=(h->timestamp>>16) & 0xff;
  data[8]=(h->timestamp>>8) & 0xff;
  data[9]=h->timestamp & 0xff;
  data[10]=h->reserved;
  data[11]=h->flags;
}

static rmff_fileheader_t *rmff_scan_fileheader(const char *data) {

  rmff_fileheader_t *fileheader=malloc(sizeof(rmff_fileheader_t));

  fileheader->object_id=BE_32(data);
  fileheader->size=BE_32(&data[4]);
  fileheader->object_version=BE_16(&data[8]);
  if (fileheader->object_version != 0)
  {
    printf("warning: unknown object version in .RMF: 0x%04x\n",
      fileheader->object_version);
  }
  fileheader->file_version=BE_32(&data[10]);
  fileheader->num_headers=BE_32(&data[14]);

  return fileheader;
}

static rmff_prop_t *rmff_scan_prop(const char *data) {

  rmff_prop_t *prop=malloc(sizeof(rmff_prop_t));

  prop->object_id=BE_32(data);
  prop->size=BE_32(&data[4]);
  prop->object_version=BE_16(&data[8]);
  if (prop->object_version != 0)
  {
    printf("warning: unknown object version in PROP: 0x%04x\n",
      prop->object_version);
  }
  prop->max_bit_rate=BE_32(&data[10]);
  prop->avg_bit_rate=BE_32(&data[14]);
  prop->max_packet_size=BE_32(&data[18]);
  prop->avg_packet_size=BE_32(&data[22]);
  prop->num_packets=BE_32(&data[26]);
  prop->duration=BE_32(&data[30]);
  prop->preroll=BE_32(&data[34]);
  prop->index_offset=BE_32(&data[38]);
  prop->data_offset=BE_32(&data[42]);
  prop->num_streams=BE_16(&data[46]);
  prop->flags=BE_16(&data[48]);

  return prop;
}

static rmff_mdpr_t *rmff_scan_mdpr(const char *data) {

  rmff_mdpr_t *mdpr=malloc(sizeof(rmff_mdpr_t));

  mdpr->object_id=BE_32(data);
  mdpr->size=BE_32(&data[4]);
  mdpr->object_version=BE_16(&data[8]);
  if (mdpr->object_version != 0)
  {
    printf("warning: unknown object version in MDPR: 0x%04x\n",
      mdpr->object_version);
  }
  mdpr->stream_number=BE_16(&data[10]);
  mdpr->max_bit_rate=BE_32(&data[12]);
  mdpr->avg_bit_rate=BE_32(&data[16]);
  mdpr->max_packet_size=BE_32(&data[20]);
  mdpr->avg_packet_size=BE_32(&data[24]);
  mdpr->start_time=BE_32(&data[28]);
  mdpr->preroll=BE_32(&data[32]);
  mdpr->duration=BE_32(&data[36]);
  
  mdpr->stream_name_size=data[40];
  mdpr->stream_name=malloc(sizeof(char)*(mdpr->stream_name_size+1));
  memcpy(mdpr->stream_name, &data[41], mdpr->stream_name_size);
  mdpr->stream_name[mdpr->stream_name_size]=0;
  
  mdpr->mime_type_size=data[41+mdpr->stream_name_size];
  mdpr->mime_type=malloc(sizeof(char)*(mdpr->mime_type_size+1));
  memcpy(mdpr->mime_type, &data[42+mdpr->stream_name_size], mdpr->mime_type_size);
  mdpr->mime_type[mdpr->mime_type_size]=0;
  
  mdpr->type_specific_len=BE_32(&data[42+mdpr->stream_name_size+mdpr->mime_type_size]);
  mdpr->type_specific_data=malloc(sizeof(char)*(mdpr->type_specific_len));
  memcpy(mdpr->type_specific_data, 
      &data[46+mdpr->stream_name_size+mdpr->mime_type_size], mdpr->type_specific_len);
  
  return mdpr;
}

static rmff_cont_t *rmff_scan_cont(const char *data) {

  rmff_cont_t *cont=malloc(sizeof(rmff_cont_t));
  int pos;

  cont->object_id=BE_32(data);
  cont->size=BE_32(&data[4]);
  cont->object_version=BE_16(&data[8]);
  if (cont->object_version != 0)
  {
    printf("warning: unknown object version in CONT: 0x%04x\n",
      cont->object_version);
  }
  cont->title_len=BE_16(&data[10]);
  cont->title=malloc(sizeof(char)*(cont->title_len+1));
  memcpy(cont->title, &data[12], cont->title_len);
  cont->title[cont->title_len]=0;
  pos=cont->title_len+12;
  cont->author_len=BE_16(&data[pos]);
  cont->author=malloc(sizeof(char)*(cont->author_len+1));
  memcpy(cont->author, &data[pos+2], cont->author_len);
  cont->author[cont->author_len]=0;
  pos=pos+2+cont->author_len;
  cont->copyright_len=BE_16(&data[pos]);
  cont->copyright=malloc(sizeof(char)*(cont->copyright_len+1));
  memcpy(cont->copyright, &data[pos+2], cont->copyright_len);
  cont->copyright[cont->copyright_len]=0;
  pos=pos+2+cont->copyright_len;
  cont->comment_len=BE_16(&data[pos]);
  cont->comment=malloc(sizeof(char)*(cont->comment_len+1));
  memcpy(cont->comment, &data[pos+2], cont->comment_len);
  cont->comment[cont->comment_len]=0;

  return cont;
}

static rmff_data_t *rmff_scan_dataheader(const char *data) {

  rmff_data_t *dh=malloc(sizeof(rmff_data_t));

  dh->object_id=BE_32(data);
  dh->size=BE_32(&data[4]);
  dh->object_version=BE_16(&data[8]);
  if (dh->object_version != 0)
  {
    printf("warning: unknown object version in DATA: 0x%04x\n",
      dh->object_version);
  }
  dh->num_packets=BE_32(&data[10]);
  dh->next_data_header=BE_32(&data[14]);

  return dh;
}
 
rmff_header_t *rmff_scan_header(const char *data) {

	rmff_header_t *header=malloc(sizeof(rmff_header_t));
	rmff_mdpr_t   *mdpr=NULL;
	int           chunk_size;
	uint32_t      chunk_type;
  const char    *ptr=data;
  int           i;

  header->fileheader=NULL;
	header->prop=NULL;
	header->cont=NULL;
	header->data=NULL;

  chunk_type = BE_32(ptr);
  if (chunk_type != RMF_TAG)
  {
    printf("rmff: not an real media file header (.RMF tag not found).\n");
    free(header);
    return NULL;
  }
  header->fileheader=rmff_scan_fileheader(ptr);
  ptr += header->fileheader->size;
	
	header->streams=malloc(sizeof(rmff_mdpr_t*)*(header->fileheader->num_headers));
  for (i=0; i<header->fileheader->num_headers; i++) {
    header->streams[i]=NULL;
  }
  
  for (i=1; i<header->fileheader->num_headers; i++) {
    chunk_type = BE_32(ptr);
  
    if (ptr[0] == 0)
    {
      printf("rmff: warning: only %d of %d header found.\n", i, header->fileheader->num_headers);
      break;
    }
    
    chunk_size=1;
    switch (chunk_type) {
    case PROP_TAG:
      header->prop=rmff_scan_prop(ptr);
      chunk_size=header->prop->size;
      break;
    case MDPR_TAG:
      mdpr=rmff_scan_mdpr(ptr);
      chunk_size=mdpr->size;
      header->streams[mdpr->stream_number]=mdpr;
      break;
    case CONT_TAG:
      header->cont=rmff_scan_cont(ptr);
      chunk_size=header->cont->size;
      break;
    case DATA_TAG:
      header->data=rmff_scan_dataheader(ptr);
      chunk_size=34;     /* hard coded header size */
      break;
    default:
      printf("unknown chunk\n");
      hexdump(ptr,10);
      chunk_size=1;
      break;
    }
    ptr+=chunk_size;
  }

	return header;
}

rmff_header_t *rmff_scan_header_stream(int fd) {

  rmff_header_t *header;
  char *buf=xbuffer_init(1024);
  int index=0;
  uint32_t chunk_type;
  uint32_t chunk_size;

  do {
    buf = xbuffer_ensure_size(buf, index+8);
    read(fd, buf+index, 8);
    chunk_type=BE_32(buf+index); index+=4;
    chunk_size=BE_32(buf+index); index+=4;

    switch (chunk_type) {
      case DATA_TAG:
        chunk_size=18;
      case MDPR_TAG:
      case CONT_TAG:
      case RMF_TAG:
      case PROP_TAG:
        buf = xbuffer_ensure_size(buf, index+chunk_size-8);
        read(fd, buf+index, (chunk_size-8));
	index+=(chunk_size-8);
        break;
      default:
        printf("rmff_scan_header_stream: unknown chunk");
        hexdump(buf+index-8, 8);
        chunk_type=DATA_TAG;
    }
  } while (chunk_type != DATA_TAG);

  header = rmff_scan_header(buf);

  xbuffer_free(buf);

  return header;
}

void rmff_scan_pheader(rmff_pheader_t *h, char *data) {

  h->object_version=BE_16(data);
  h->length=BE_16(data+2);
  h->stream_number=BE_16(data+4);
  h->timestamp=BE_32(data+6);
  h->reserved=(uint8_t)data[10];
  h->flags=(uint8_t)data[11];
}

rmff_fileheader_t *rmff_new_fileheader(uint32_t num_headers) {

  rmff_fileheader_t *fileheader=malloc(sizeof(rmff_fileheader_t));

  fileheader->object_id=RMF_TAG;
  fileheader->size=18;
  fileheader->object_version=0;
  fileheader->file_version=0;
  fileheader->num_headers=num_headers;

  return fileheader;
}

rmff_prop_t *rmff_new_prop (
    uint32_t max_bit_rate,
    uint32_t avg_bit_rate,
    uint32_t max_packet_size,
    uint32_t avg_packet_size,
    uint32_t num_packets,
    uint32_t duration,
    uint32_t preroll,
    uint32_t index_offset,
    uint32_t data_offset,
    uint16_t num_streams,
    uint16_t flags ) {

  rmff_prop_t *prop=malloc(sizeof(rmff_prop_t));

  prop->object_id=PROP_TAG;
  prop->size=50;
  prop->object_version=0;

  prop->max_bit_rate=max_bit_rate;
  prop->avg_bit_rate=avg_bit_rate;
  prop->max_packet_size=max_packet_size;
  prop->avg_packet_size=avg_packet_size;
  prop->num_packets=num_packets;
  prop->duration=duration;
  prop->preroll=preroll;
  prop->index_offset=index_offset;
  prop->data_offset=data_offset;
  prop->num_streams=num_streams;
  prop->flags=flags;
   
  return prop;
}

rmff_mdpr_t *rmff_new_mdpr(
      uint16_t   stream_number,
      uint32_t   max_bit_rate,
      uint32_t   avg_bit_rate,
      uint32_t   max_packet_size,
      uint32_t   avg_packet_size,
      uint32_t   start_time,
      uint32_t   preroll,
      uint32_t   duration,
      const char *stream_name,
      const char *mime_type,
      uint32_t   type_specific_len,
      const char *type_specific_data ) {

  rmff_mdpr_t *mdpr=malloc(sizeof(rmff_mdpr_t));
  
  mdpr->object_id=MDPR_TAG;
  mdpr->object_version=0;

  mdpr->stream_number=stream_number;
  mdpr->max_bit_rate=max_bit_rate;
  mdpr->avg_bit_rate=avg_bit_rate;
  mdpr->max_packet_size=max_packet_size;
  mdpr->avg_packet_size=avg_packet_size;
  mdpr->start_time=start_time;
  mdpr->preroll=preroll;
  mdpr->duration=duration;
  mdpr->stream_name_size=0;
  if (stream_name) {
    mdpr->stream_name=strdup(stream_name);
    mdpr->stream_name_size=strlen(stream_name);
  }
  mdpr->mime_type_size=0;
  if (mime_type) {
    mdpr->mime_type=strdup(mime_type);
    mdpr->mime_type_size=strlen(mime_type);
  }
  mdpr->type_specific_len=type_specific_len;
  mdpr->type_specific_data=malloc(sizeof(char)*type_specific_len);
  memcpy(mdpr->type_specific_data,type_specific_data,type_specific_len);
  mdpr->mlti_data=NULL;
  
  mdpr->size=mdpr->stream_name_size+mdpr->mime_type_size+mdpr->type_specific_len+46;

  return mdpr;
}

rmff_cont_t *rmff_new_cont(const char *title, const char *author, const char *copyright, const char *comment) {

  rmff_cont_t *cont=malloc(sizeof(rmff_cont_t));

  cont->object_id=CONT_TAG;
  cont->object_version=0;

  cont->title=NULL;
  cont->author=NULL;
  cont->copyright=NULL;
  cont->comment=NULL;
  
  cont->title_len=0;
  cont->author_len=0;
  cont->copyright_len=0;
  cont->comment_len=0;

  if (title) {
    cont->title_len=strlen(title);
    cont->title=strdup(title);
  }
  if (author) {
    cont->author_len=strlen(author);
    cont->author=strdup(author);
  }
  if (copyright) {
    cont->copyright_len=strlen(copyright);
    cont->copyright=strdup(copyright);
  }
  if (comment) {
    cont->comment_len=strlen(comment);
    cont->comment=strdup(comment);
  }
  cont->size=cont->title_len+cont->author_len+cont->copyright_len+cont->comment_len+18;

  return cont;
}

rmff_data_t *rmff_new_dataheader(uint32_t num_packets, uint32_t next_data_header) {

  rmff_data_t *data=malloc(sizeof(rmff_data_t));

  data->object_id=DATA_TAG;
  data->size=18;
  data->object_version=0;
  data->num_packets=num_packets;
  data->next_data_header=next_data_header;

  return data;
}
  
void rmff_print_header(rmff_header_t *h) {

  rmff_mdpr_t **stream;
  
  if(!h) {
    printf("rmff_print_header: NULL given\n");
    return;
  }
  if(h->fileheader)
  {
    printf("\nFILE:\n");
    printf("file version      : %d\n", h->fileheader->file_version);
    printf("number of headers : %d\n", h->fileheader->num_headers);
  }
  if(h->cont)
  {
    printf("\nCONTENT:\n");
    printf("title     : %s\n", h->cont->title);
    printf("author    : %s\n", h->cont->author);
    printf("copyright : %s\n", h->cont->copyright);
    printf("comment   : %s\n", h->cont->comment);
  }
  if(h->prop)
  {
    printf("\nSTREAM PROPERTIES:\n");
    printf("bit rate (max/avg)    : %i/%i\n", h->prop->max_bit_rate, h->prop->avg_bit_rate);
    printf("packet size (max/avg) : %i/%i bytes\n", h->prop->max_packet_size, h->prop->avg_packet_size);
    printf("packets       : %i\n", h->prop->num_packets);
    printf("duration      : %i ms\n", h->prop->duration);
    printf("pre-buffer    : %i ms\n", h->prop->preroll);
    printf("index offset  : %i bytes\n", h->prop->index_offset);
    printf("data offset   : %i bytes\n", h->prop->data_offset);
    printf("media streams : %i\n", h->prop->num_streams);
    printf("flags         : ");
    if (h->prop->flags & PN_SAVE_ENABLED) printf("save_enabled ");
    if (h->prop->flags & PN_PERFECT_PLAY_ENABLED) printf("perfect_play_enabled ");
    if (h->prop->flags & PN_LIVE_BROADCAST) printf("live_broadcast ");
    printf("\n");
  }
  stream=h->streams;
  if(stream)
  {
    while (*stream)
    {
      printf("\nSTREAM %i:\n", (*stream)->stream_number);
      printf("stream name [mime type] : %s [%s]\n", (*stream)->stream_name, (*stream)->mime_type);
      printf("bit rate (max/avg)      : %i/%i\n", (*stream)->max_bit_rate, (*stream)->avg_bit_rate);
      printf("packet size (max/avg)   : %i/%i bytes\n", (*stream)->max_packet_size, (*stream)->avg_packet_size);
      printf("start time : %i\n", (*stream)->start_time);
      printf("pre-buffer : %i ms\n", (*stream)->preroll);
      printf("duration   : %i ms\n", (*stream)->duration);
      printf("type specific data:\n");
      hexdump((*stream)->type_specific_data, (*stream)->type_specific_len);
      stream++;
    }
  }
  if(h->data)
  {
    printf("\nDATA:\n");
    printf("size      : %i\n", h->data->size);
    printf("packets   : %i\n", h->data->num_packets);
    printf("next DATA : 0x%08x\n", h->data->next_data_header);
  } 
}

void rmff_fix_header(rmff_header_t *h) {

  int num_headers=0;
  int header_size=0;
  rmff_mdpr_t **streams;
  int num_streams=0;

  if (!h) {
    printf("rmff_fix_header: fatal: no header given.\n");
    return;
  }

  if (!h->streams) {
    printf("rmff_fix_header: warning: no MDPR chunks\n");
  } else
  {
    streams=h->streams;
    while (*streams)
    {
      num_streams++;
      num_headers++;
      header_size+=(*streams)->size;
      streams++;
    }
  }
  
  if (h->prop) {
    if (h->prop->size != 50)
    {
#ifdef LOG
      printf("rmff_fix_header: correcting prop.size from %i to %i\n", h->prop->size, 50);
#endif
      h->prop->size=50;
    }
    if (h->prop->num_streams != num_streams)
    {
#ifdef LOG
      printf("rmff_fix_header: correcting prop.num_streams from %i to %i\n", h->prop->num_streams, num_streams);
#endif
      h->prop->num_streams=num_streams;
    }
    num_headers++;
    header_size+=50;
  } else
    printf("rmff_fix_header: warning: no PROP chunk.\n");

  if (h->cont) {
    num_headers++;
    header_size+=h->cont->size;
  } else
    printf("rmff_fix_header: warning: no CONT chunk.\n");

  if (!h->data) {
#ifdef LOG
    printf("rmff_fix_header: no DATA chunk, creating one\n");
#endif
    h->data=malloc(sizeof(rmff_data_t));
    h->data->object_id=DATA_TAG;
    h->data->object_version=0;
    h->data->size=34;
    h->data->num_packets=0;
    h->data->next_data_header=0;
  }
  num_headers++;

  
  if (!h->fileheader) {
#ifdef LOG
    printf("rmff_fix_header: no fileheader, creating one");
#endif
    h->fileheader=malloc(sizeof(rmff_fileheader_t));
    h->fileheader->object_id=RMF_TAG;
    h->fileheader->size=34;
    h->fileheader->object_version=0;
    h->fileheader->file_version=0;
    h->fileheader->num_headers=num_headers+1;
  }
  header_size+=h->fileheader->size;
  num_headers++;

  if(h->fileheader->num_headers != num_headers) {
#ifdef LOG
    printf("rmff_fix_header: setting num_headers from %i to %i\n", h->fileheader->num_headers, num_headers); 
#endif
    h->fileheader->num_headers=num_headers;
  }

  if(h->prop) {
    if (h->prop->data_offset != header_size) {
#ifdef LOG
      printf("rmff_fix_header: setting prop.data_offset from %i to %i\n", h->prop->data_offset, header_size); 
#endif
      h->prop->data_offset=header_size;
    }
    if (h->prop->num_packets == 0) {
      int p=(int)(h->prop->avg_bit_rate/8.0*(h->prop->duration/1000.0)/h->prop->avg_packet_size);
#ifdef LOG
      printf("rmff_fix_header: assuming prop.num_packets=%i\n", p); 
#endif
      h->prop->num_packets=p;
    }
    if (h->data->num_packets == 0) {
#ifdef LOG
      printf("rmff_fix_header: assuming data.num_packets=%i\n", h->prop->num_packets); 
#endif
      h->data->num_packets=h->prop->num_packets;
    }
    
#ifdef LOG
    printf("rmff_fix_header: assuming data.size=%i\n", h->prop->num_packets*h->prop->avg_packet_size); 
#endif
    h->data->size=h->prop->num_packets*h->prop->avg_packet_size;
  }
}

int rmff_get_header_size(rmff_header_t *h) {

  if (!h) return 0;
  if (!h->prop) return -1;

  return h->prop->data_offset+18;
  
}

void rmff_free_header(rmff_header_t *h) {

  if (!h) return;

  if (h->fileheader) free(h->fileheader);
  if (h->prop) free(h->prop);
  if (h->data) free(h->data);
  if (h->cont)
  {
    free(h->cont->title);
    free(h->cont->author);
    free(h->cont->copyright);
    free(h->cont->comment);
    free(h->cont);
  }
  if (h->streams)
  {
    rmff_mdpr_t **s=h->streams;

    while(*s) {
      free((*s)->stream_name);
      free((*s)->mime_type);
      free((*s)->type_specific_data);
      free(*s);
      s++;
    }
    free(h->streams);
  }
  free(h);
}

--- NEW FILE ---
/*
 * This file was ported to MPlayer from xine CVS rmff.h,v 1.3 2003/02/10 22:11:10
 */

/*
 * Copyright (C) 2002 the xine project
 *
 * This file is part of xine, a free video player.
 *
 * xine 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.
 *
 * xine 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  02111-1307, USA
 *
 *
 * some functions for real media file headers
 * adopted from joschkas real tools
 */

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>


#ifndef HAVE_RMFF_H
#define HAVE_RMFF_H


#define RMFF_HEADER_SIZE 0x12

#define FOURCC_TAG( ch0, ch1, ch2, ch3 ) \
        (((long)(unsigned char)(ch3)       ) | \
        ( (long)(unsigned char)(ch2) << 8  ) | \
        ( (long)(unsigned char)(ch1) << 16 ) | \
        ( (long)(unsigned char)(ch0) << 24 ) )


#define RMF_TAG   FOURCC_TAG('.', 'R', 'M', 'F')
#define PROP_TAG  FOURCC_TAG('P', 'R', 'O', 'P')
#define MDPR_TAG  FOURCC_TAG('M', 'D', 'P', 'R')
#define CONT_TAG  FOURCC_TAG('C', 'O', 'N', 'T')
#define DATA_TAG  FOURCC_TAG('D', 'A', 'T', 'A')
#define INDX_TAG  FOURCC_TAG('I', 'N', 'D', 'X')
#define PNA_TAG   FOURCC_TAG('P', 'N', 'A',  0 )

#define MLTI_TAG  FOURCC_TAG('M', 'L', 'T', 'I')

/* prop flags */
#define PN_SAVE_ENABLED         0x01
#define PN_PERFECT_PLAY_ENABLED 0x02
#define PN_LIVE_BROADCAST       0x04

#ifdef __CYGWIN__
#define uint32_t unsigned int
#define uint16_t unsigned short int
#define uint8_t unsigned char
#endif

/*
 * rm header data structs
 */

typedef struct {

  uint32_t object_id;
  uint32_t size;
  uint16_t object_version;

  uint32_t file_version;
  uint32_t num_headers;
} rmff_fileheader_t;

typedef struct {

  uint32_t object_id;
  uint32_t size;
  uint16_t object_version;

  uint32_t max_bit_rate;
  uint32_t avg_bit_rate;
  uint32_t max_packet_size;
  uint32_t avg_packet_size;
  uint32_t num_packets;
  uint32_t duration;
  uint32_t preroll;
  uint32_t index_offset;
  uint32_t data_offset;
  uint16_t num_streams;
  uint16_t flags;
    
} rmff_prop_t;

typedef struct {

  uint32_t  object_id;
  uint32_t  size;
  uint16_t  object_version;

  uint16_t  stream_number;
  uint32_t  max_bit_rate;
  uint32_t  avg_bit_rate;
  uint32_t  max_packet_size;
  uint32_t  avg_packet_size;
  uint32_t  start_time;
  uint32_t  preroll;
  uint32_t  duration;
  uint8_t   stream_name_size;
  char      *stream_name;
  uint8_t   mime_type_size;
  char      *mime_type;
  uint32_t  type_specific_len;
  char      *type_specific_data;

  int       mlti_data_size;
  char      *mlti_data;

} rmff_mdpr_t;

typedef struct {

  uint32_t  object_id;
  uint32_t  size;
  uint16_t  object_version;

  uint16_t  title_len;
  char      *title;
  uint16_t  author_len;
  char      *author;
  uint16_t  copyright_len;
  char      *copyright;
  uint16_t  comment_len;
  char      *comment;
  
} rmff_cont_t;

typedef struct {
  
  uint32_t object_id;
  uint32_t size;
  uint16_t object_version;

  uint32_t num_packets;
  uint32_t next_data_header; /* rarely used */
} rmff_data_t;

typedef struct {

  rmff_fileheader_t *fileheader;
  rmff_prop_t *prop;
  rmff_mdpr_t **streams;
  rmff_cont_t *cont;
  rmff_data_t *data;
} rmff_header_t;

typedef struct {

  uint16_t object_version;

  uint16_t length;
  uint16_t stream_number;
  uint32_t timestamp;
  uint8_t reserved;
  uint8_t flags;

} rmff_pheader_t;

/*
 * constructors for header structs
 */
 
rmff_fileheader_t *rmff_new_fileheader(uint32_t num_headers);

rmff_prop_t *rmff_new_prop (
    uint32_t max_bit_rate,
    uint32_t avg_bit_rate,
    uint32_t max_packet_size,
    uint32_t avg_packet_size,
    uint32_t num_packets,
    uint32_t duration,
    uint32_t preroll,
    uint32_t index_offset,
    uint32_t data_offset,
    uint16_t num_streams,
    uint16_t flags );

rmff_mdpr_t *rmff_new_mdpr(
    uint16_t   stream_number,
    uint32_t   max_bit_rate,
    uint32_t   avg_bit_rate,
    uint32_t   max_packet_size,
    uint32_t   avg_packet_size,
    uint32_t   start_time,
    uint32_t   preroll,
    uint32_t   duration,
    const char *stream_name,
    const char *mime_type,
    uint32_t   type_specific_len,
    const char *type_specific_data );

rmff_cont_t *rmff_new_cont(
    const char *title,
    const char *author,
    const char *copyright,
    const char *comment);

rmff_data_t *rmff_new_dataheader(
    uint32_t num_packets, uint32_t next_data_header);

/*
 * reads header infos from data and returns a newly allocated header struct
 */
rmff_header_t *rmff_scan_header(const char *data);

/*
 * scans a data packet header. Notice, that this function does not allocate
 * the header struct itself.
 */
void rmff_scan_pheader(rmff_pheader_t *h, char *data);

/*
 * reads header infos from stream and returns a newly allocated header struct
 */
rmff_header_t *rmff_scan_header_stream(int fd);

/*
 * prints header information in human readible form to stdout
 */
void rmff_print_header(rmff_header_t *h);

/*
 * does some checks and fixes header if possible
 */
void rmff_fix_header(rmff_header_t *h);

/*
 * returns the size of the header (incl. first data-header)
 */
int rmff_get_header_size(rmff_header_t *h);
 
/*
 * dumps the header <h> to <buffer>. <max> is the size of <buffer>
 */
int rmff_dump_header(rmff_header_t *h, char *buffer, int max);

/*
 * dumps a packet header
 */
void rmff_dump_pheader(rmff_pheader_t *h, char *data);

/*
 * frees a header struct
 */
void rmff_free_header(rmff_header_t *h);

#endif

--- NEW FILE ---
/*
 * This file was ported to MPlayer from xine CVS rtsp.c,v 1.9 2003/04/10 02:30:48
 */

/*
 * Copyright (C) 2000-2002 the xine project
 *
 * This file is part of xine, a free video player.
 *
 * xine 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.
 *
 * xine 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  02111-1307, USA
 *
 *
 * a minimalistic implementation of rtsp protocol,
 * *not* RFC 2326 compilant yet.
 */

#include <unistd.h>
#include <stdio.h>
#include <assert.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <string.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <stdlib.h>
#include <time.h>
#include <sys/time.h>
#include <sys/types.h>

#include "rtsp.h"

/*
#define LOG
*/

#define BUF_SIZE 4096
#define HEADER_SIZE 1024
#define MAX_FIELDS 256

struct rtsp_s {

  int           s;

  char         *host;
  int           port;
  char         *path;
  char         *mrl;
  char         *user_agent;

  char         *server;
  unsigned int  server_state;
  uint32_t      server_caps;
  
  char          buffer[BUF_SIZE]; /* scratch buffer */

  unsigned int  cseq;
  char         *session;

  char        *answers[MAX_FIELDS];   /* data of last message */
  char        *scheduled[MAX_FIELDS]; /* will be sent with next message */
};

/*
 * constants
 */

const char rtsp_protocol_version[]="RTSP/1.0";

/* server states */
#define RTSP_CONNECTED 1
#define RTSP_INIT      2
#define RTSP_READY     4
#define RTSP_PLAYING   8
#define RTSP_RECORDING 16

/* server capabilities */
#define RTSP_OPTIONS       0x001
#define RTSP_DESCRIBE      0x002
#define RTSP_ANNOUNCE      0x004
#define RTSP_SETUP         0x008
#define RTSP_GET_PARAMETER 0x010
#define RTSP_SET_PARAMETER 0x020
#define RTSP_TEARDOWN      0x040
#define RTSP_PLAY          0x080
#define RTSP_RECORD        0x100

/*
 * network utilities
 */
 
static int host_connect_attempt(struct in_addr ia, int port) {

  int                s;
  struct sockaddr_in sin;

  s = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);  
  if (s == -1) {
    printf ("rtsp: socket(): %s\n", strerror(errno));
    return -1;
  }

  sin.sin_family = AF_INET;
  sin.sin_addr   = ia;
  sin.sin_port   = htons(port);
  
  if (connect(s, (struct sockaddr *)&sin, sizeof(sin))==-1 
      && errno != EINPROGRESS) {
    printf ("rtsp: connect(): %s\n", strerror(errno));
    close(s);
    return -1;
  }

  return s;
}

static int host_connect(const char *host, int port) {

  struct hostent *h;
  int             i, s;
  
  h = gethostbyname(host);
  if (h == NULL) {
    printf ("rtsp: unable to resolve '%s'.\n", host);
    return -1;
  }

  for (i = 0; h->h_addr_list[i]; i++) {
    struct in_addr ia;

    memcpy (&ia, h->h_addr_list[i], 4);
    s = host_connect_attempt(ia, port);
    if(s != -1)
      return s;
  }
  printf ("rtsp: unable to connect to '%s'.\n", host);
  return -1;
}

static int write_stream(int s, const char *buf, int len) {
  int total, timeout;

  total = 0; timeout = 30;
  while (total < len){ 
    int n;

    n = write (s, &buf[total], len - total);

    if (n > 0)
      total += n;
    else if (n < 0) {
      if ((timeout>0) && ((errno == EAGAIN) || (errno == EINPROGRESS))) {
        sleep (1); timeout--;
      } else
        return -1;
    }
  }

  return total;
}

static ssize_t read_stream(int fd, void *buf, size_t count) {
  
  ssize_t ret, total;

  total = 0;

  while (total < count) {
  
    ret=read (fd, ((uint8_t*)buf)+total, count-total);

    if (ret<0) {
      if(errno == EAGAIN) {
        fd_set rset;
        struct timeval timeout;
    
        FD_ZERO (&rset);
        FD_SET  (fd, &rset);
        
        timeout.tv_sec  = 30;
        timeout.tv_usec = 0;
        
        if (select (fd+1, &rset, NULL, NULL, &timeout) <= 0) {
          return -1;
        }
        continue;
      }
      
      printf ("rtsp: read error.\n");
      return ret;
    } else
      total += ret;
    
    /* end of stream */
    if (!ret) break;
  }

  return total;
}

/*
 * debugging utilities
 */
#if 0 
static void hexdump (char *buf, int length) {

  int i;

  printf ("rtsp: ascii>");
  for (i = 0; i < length; i++) {
    unsigned char c = buf[i];

    if ((c >= 32) && (c <= 128))
      printf ("%c", c);
    else
      printf (".");
  }
  printf ("\n");

  printf ("rtsp: hexdump> ");
  for (i = 0; i < length; i++) {
    unsigned char c = buf[i];

    printf ("%02x", c);

    if ((i % 16) == 15)
      printf ("\nrtsp:         ");

    if ((i % 2) == 1)
      printf (" ");

  }
  printf ("\n");
}
#endif

/*
 * rtsp_get gets a line from stream
 * and returns a null terminated string.
 */
 
static char *rtsp_get(rtsp_t *s) {

  int n=0;
  char *string;

  while (n<BUF_SIZE) {
    read_stream(s->s, &s->buffer[n], 1);
    if ((s->buffer[n-1]==0x0d)&&(s->buffer[n]==0x0a)) break;
    n++;
  }

  if (n>=BUF_SIZE) {
    printf("librtsp: buffer overflow in rtsp_get\n");
    exit(1);
  }
  string=malloc(sizeof(char)*n);
  memcpy(string,s->buffer,n-1);
  string[n-1]=0;

#ifdef LOG
  printf("librtsp: << '%s'\n", string);
#endif
  

  return string;
}

/*
 * rtsp_put puts a line on stream
 */
 
static void rtsp_put(rtsp_t *s, const char *string) {

  int len=strlen(string);
  char *buf=malloc(sizeof(char)*len+2);

#ifdef LOG
  printf("librtsp: >> '%s'", string);
#endif

  memcpy(buf,string,len);
  buf[len]=0x0d;
  buf[len+1]=0x0a;

  write_stream(s->s, buf, len+2);
  
#ifdef LOG
  printf(" done.\n");
#endif

  free(buf);
}

/*
 * extract server status code
 */

static int rtsp_get_code(const char *string) {

  char buf[4];
  int code=0;
 
  if (!strncmp(string, rtsp_protocol_version, strlen(rtsp_protocol_version)))
  {
    memcpy(buf, string+strlen(rtsp_protocol_version)+1, 3);
    buf[3]=0;
    code=atoi(buf);
  } else if (!strncmp(string, "SET_PARAMETER",8))
  {
    return RTSP_STATUS_SET_PARAMETER;
  }

  if(code != 200) printf("librtsp: server responds: '%s'\n",string);

  return code;
}

/*
 * send a request
 */

static void rtsp_send_request(rtsp_t *s, const char *type, const char *what) {

  char **payload=s->scheduled;
  sprintf(s->buffer,"%s %s %s",type, what, rtsp_protocol_version);
  rtsp_put(s,s->buffer);
  if (payload)
    while (*payload) {
      rtsp_put(s,*payload);
      payload++;
    }
  rtsp_put(s,"");
  rtsp_unschedule_all(s);
}

/*
 * schedule standard fields
 */

static void rtsp_schedule_standard(rtsp_t *s) {

  sprintf(s->buffer, "Cseq: %u", s->cseq);
  rtsp_schedule_field(s, s->buffer);
  if (s->session) {
    sprintf(s->buffer, "Session: %s", s->session);
    rtsp_schedule_field(s, s->buffer);
  }
}
/*
 * get the answers, if server responses with something != 200, return NULL
 */
 
static int rtsp_get_answers(rtsp_t *s) {

  char *answer=NULL;
  unsigned int answer_seq;
  char **answer_ptr=s->answers;
  int code;
  
  answer=rtsp_get(s);
  code=rtsp_get_code(answer);
  free(answer);

  rtsp_free_answers(s);
  
  do { /* while we get answer lines */
  
    answer=rtsp_get(s);
    
    if (!strncmp(answer,"Cseq:",5)) {
      sscanf(answer,"Cseq: %u",&answer_seq);
      if (s->cseq != answer_seq) {
#ifdef LOG
        printf("librtsp: warning: Cseq mismatch. got %u, assumed %u", answer_seq, s->cseq);
#endif
        s->cseq=answer_seq;
      }
    }
    if (!strncmp(answer,"Server:",7)) {
      sscanf(answer,"Server: %s",s->buffer);
      if (s->server) free(s->server);
      s->server=strdup(s->buffer);
    }
    if (!strncmp(answer,"Session:",8)) {
      memset(s->buffer,0, BUF_SIZE);
      sscanf(answer,"Session: %s",s->buffer);
      if (s->session) {
        if (strcmp(s->buffer, s->session)) {
          printf("rtsp: warning: setting NEW session: %s\n", s->buffer);
          free(s->session);
          s->session=strdup(s->buffer);
        }
      } else
      {
#ifdef LOG
        printf("rtsp: setting session id to: %s\n", s->buffer);
#endif
        s->session=strdup(s->buffer);
      }
    }
    *answer_ptr=answer;
    answer_ptr++;
  } while (strlen(answer)!=0);
  
  s->cseq++;
  
  *answer_ptr=NULL;
  rtsp_schedule_standard(s);
    
  return code;
}

/*
 * send an ok message
 */

int rtsp_send_ok(rtsp_t *s) {
  char cseq[16];
  
  rtsp_put(s, "RTSP/1.0 200 OK");
  sprintf(cseq,"CSeq: %u", s->cseq);
  rtsp_put(s, cseq);
  rtsp_put(s, "");
  return 0;
}

/*
 * implementation of must-have rtsp requests; functions return
 * server status code.
 */

int rtsp_request_options(rtsp_t *s, const char *what) {

  char *buf;

  if (what) {
    buf=strdup(what);
  } else
  {
    buf=malloc(sizeof(char)*(strlen(s->host)+16));
    sprintf(buf,"rtsp://%s:%i", s->host, s->port);
  }
  rtsp_send_request(s,"OPTIONS",buf);
  free(buf);

  return rtsp_get_answers(s);
}

int rtsp_request_describe(rtsp_t *s, const char *what) {

  char *buf;

  if (what) {
    buf=strdup(what);
  } else
  {
    buf=malloc(sizeof(char)*(strlen(s->host)+strlen(s->path)+16));
    sprintf(buf,"rtsp://%s:%i/%s", s->host, s->port, s->path);
  }
  rtsp_send_request(s,"DESCRIBE",buf);
  free(buf);
  
  return rtsp_get_answers(s);
}

int rtsp_request_setup(rtsp_t *s, const char *what) {

  rtsp_send_request(s,"SETUP",what);
  
  return rtsp_get_answers(s);
}

int rtsp_request_setparameter(rtsp_t *s, const char *what) {

  char *buf;

  if (what) {
    buf=strdup(what);
  } else
  {
    buf=malloc(sizeof(char)*(strlen(s->host)+strlen(s->path)+16));
    sprintf(buf,"rtsp://%s:%i/%s", s->host, s->port, s->path);
  }
  rtsp_send_request(s,"SET_PARAMETER",buf);
  free(buf);
  
  return rtsp_get_answers(s);
}

int rtsp_request_play(rtsp_t *s, const char *what) {

  char *buf;

  if (what) {
    buf=strdup(what);
  } else
  {
    buf=malloc(sizeof(char)*(strlen(s->host)+strlen(s->path)+16));
    sprintf(buf,"rtsp://%s:%i/%s", s->host, s->port, s->path);
  }
  rtsp_send_request(s,"PLAY",buf);
  free(buf);
  
  return rtsp_get_answers(s);
}

int rtsp_request_tearoff(rtsp_t *s, const char *what) {

  rtsp_send_request(s,"TEAROFF",what);
  
  return rtsp_get_answers(s);
}

/*
 * read opaque data from stream
 */

int rtsp_read_data(rtsp_t *s, char *buffer, unsigned int size) {

  int i,seq;

  if (size>=4) {
    i=read_stream(s->s, buffer, 4);
    if (i<4) return i;
    if ((buffer[0]=='S')&&(buffer[1]=='E')&&(buffer[2]=='T')&&(buffer[3]=='_'))
    {
      char *rest=rtsp_get(s);
      /* a real server wanna play table tennis? */
      memcpy(s->buffer, buffer, 4);
      strcpy(s->buffer+4, rest);
      seq=-1;
      do {
        free(rest);
        rest=rtsp_get(s);
        if (!strncmp(rest,"Cseq:",5))
          sscanf(rest,"Cseq: %u",&seq);
      } while (strlen(rest)!=0);
      free(rest);
      if (seq<0) {
#ifdef LOG
        printf("rtsp: warning: cseq not recognized!\n");
#endif
        seq=1;
      }
      /* lets make the server happy */
      rtsp_put(s, "RTSP/1.0 451 Parameter Not Understood");
      rest=malloc(sizeof(char)*16);
      sprintf(rest,"CSeq: %u", seq);
      rtsp_put(s, rest);
      rtsp_put(s, "");
      i=read_stream(s->s, buffer, size);
    } else
    {
      i=read_stream(s->s, buffer+4, size-4);
      i+=4;
    }
  } else
    i=read_stream(s->s, buffer, size);
#ifdef LOG
  printf("librtsp: << %d of %d bytes\n", i, size);
#endif

  return i;
}

/*
 * connect to a rtsp server
 */

//rtsp_t *rtsp_connect(const char *mrl, const char *user_agent) {
rtsp_t *rtsp_connect(int fd, char* mrl, char *path, char *host, int port, char *user_agent) {

  rtsp_t *s=malloc(sizeof(rtsp_t));
  int i;
  
  for (i=0; i<MAX_FIELDS; i++) {
    s->answers[i]=NULL;
    s->scheduled[i]=NULL;
  }

  s->server=NULL;
  s->server_state=0;
  s->server_caps=0;
  
  s->cseq=0;
  s->session=NULL;
  
  if (user_agent)
    s->user_agent=strdup(user_agent);
  else
    s->user_agent=strdup("User-Agent: RealMedia Player Version 6.0.9.1235 (linux-2.0-libc6-i386-gcc2.95)");

  s->mrl = strdup(mrl);
  s->host = strdup(host);
  s->port = port;
  s->path = strdup(path);
  s->s = fd;

  if (s->s < 0) {
    printf ("rtsp: failed to connect to '%s'\n", s->host);
    rtsp_close(s);
    return NULL;
  }

  s->server_state=RTSP_CONNECTED;

  /* now lets send an options request. */
  rtsp_schedule_field(s, "CSeq: 1");
  rtsp_schedule_field(s, s->user_agent);
  rtsp_schedule_field(s, "ClientChallenge: 9e26d33f2984236010ef6253fb1887f7");
  rtsp_schedule_field(s, "PlayerStarttime: [28/03/2003:22:50:23 00:00]");
  rtsp_schedule_field(s, "CompanyID: KnKV4M4I/B2FjJ1TToLycw==");
  rtsp_schedule_field(s, "GUID: 00000000-0000-0000-0000-000000000000");
  rtsp_schedule_field(s, "RegionData: 0");
  rtsp_schedule_field(s, "ClientID: Linux_2.4_6.0.9.1235_play32_RN01_EN_586");
  /*rtsp_schedule_field(s, "Pragma: initiate-session");*/
  rtsp_request_options(s, NULL);

  return s;
}


/*
 * closes an rtsp connection 
 */

void rtsp_close(rtsp_t *s) {

  if (s->server_state) close(s->s); /* TODO: send a TEAROFF */
  if (s->path) free(s->path);
  if (s->host) free(s->host);
  if (s->mrl) free(s->mrl);
  if (s->session) free(s->session);
  if (s->user_agent) free(s->user_agent);
  rtsp_free_answers(s);
  rtsp_unschedule_all(s);
  free(s);  
}

/*
 * search in answers for tags. returns a pointer to the content
 * after the first matched tag. returns NULL if no match found.
 */

char *rtsp_search_answers(rtsp_t *s, const char *tag) {

  char **answer;
  char *ptr;
  
  if (!s->answers) return NULL;
  answer=s->answers;

  while (*answer) {
    if (!strncasecmp(*answer,tag,strlen(tag))) {
      ptr=strchr(*answer,':');
      ptr++;
      while(*ptr==' ') ptr++;
      return ptr;
    }
    answer++;
  }

  return NULL;
}

/*
 * session id management
 */

void rtsp_set_session(rtsp_t *s, const char *id) {

  if (s->session) free(s->session);

  s->session=strdup(id);

}

char *rtsp_get_session(rtsp_t *s) {

  return s->session;

}

char *rtsp_get_mrl(rtsp_t *s) {

  return s->mrl;

}

/*
 * schedules a field for transmission
 */

void rtsp_schedule_field(rtsp_t *s, const char *string) {

  int i=0;
  
  if (!string) return;

  while(s->scheduled[i]) {
    i++;
  }
  s->scheduled[i]=strdup(string);
}

/*
 * removes the first scheduled field which prefix matches string. 
 */

void rtsp_unschedule_field(rtsp_t *s, const char *string) {

  char **ptr=s->scheduled;
  
  if (!string) return;

  while(*ptr) {
    if (!strncmp(*ptr, string, strlen(string)))
      break;
  }
  if (*ptr) free(*ptr);
  ptr++;
  do {
    *(ptr-1)=*ptr;
  } while(*ptr);
}

/*
 * unschedule all fields
 */

void rtsp_unschedule_all(rtsp_t *s) {

  char **ptr;
  
  if (!s->scheduled) return;
  ptr=s->scheduled;

  while (*ptr) {
    free(*ptr);
    *ptr=NULL;
    ptr++;
  }
}
/*
 * free answers
 */

void rtsp_free_answers(rtsp_t *s) {

  char **answer;
  
  if (!s->answers) return;
  answer=s->answers;

  while (*answer) {
    free(*answer);
    *answer=NULL;
    answer++;
  }
}

--- NEW FILE ---
/*
 * This file was ported to MPlayer from xine CVS rtsp.h,v 1.2 2002/12/16 21:50:55
 */

/*
 * Copyright (C) 2002 the xine project
 *
 * This file is part of xine, a free video player.
 *
 * xine 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.
 *
 * xine 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  02111-1307, USA
 *
 *
 * a minimalistic implementation of rtsp protocol,
 * *not* RFC 2326 compilant yet.
 */
 
#ifndef HAVE_RTSP_H
#define HAVE_RTSP_H


#ifdef __CYGWIN__
#define uint32_t unsigned int
#define uint16_t unsigned short int
#define uint8_t unsigned char
#endif

/* some codes returned by rtsp_request_* functions */

#define RTSP_STATUS_SET_PARAMETER  10
#define RTSP_STATUS_OK            200

typedef struct rtsp_s rtsp_t;

rtsp_t*  rtsp_connect (int fd, char *mrl, char *path, char *host, int port, char *user_agent);

int rtsp_request_options(rtsp_t *s, const char *what);
int rtsp_request_describe(rtsp_t *s, const char *what);
int rtsp_request_setup(rtsp_t *s, const char *what);
int rtsp_request_setparameter(rtsp_t *s, const char *what);
int rtsp_request_play(rtsp_t *s, const char *what);
int rtsp_request_tearoff(rtsp_t *s, const char *what);

int rtsp_send_ok(rtsp_t *s);

int rtsp_read_data(rtsp_t *s, char *buffer, unsigned int size);

char* rtsp_search_answers(rtsp_t *s, const char *tag);
void rtsp_add_to_payload(char **payload, const char *string);

void rtsp_free_answers(rtsp_t *this);

int      rtsp_read (rtsp_t *this, char *data, int len);
void     rtsp_close (rtsp_t *this);

void  rtsp_set_session(rtsp_t *s, const char *id);
char *rtsp_get_session(rtsp_t *s);

char *rtsp_get_mrl(rtsp_t *s);

/*int      rtsp_peek_header (rtsp_t *this, char *data); */

void rtsp_schedule_field(rtsp_t *s, const char *string);
void rtsp_unschedule_field(rtsp_t *s, const char *string);
void rtsp_unschedule_all(rtsp_t *s);

#endif


--- NEW FILE ---
/*
 * This file was ported to MPlayer from xine CVS rtsp_session.c,v 1.9 2003/02/11 16:20:40
 */

/*
 * Copyright (C) 2000-2002 the xine project
 *
 * This file is part of xine, a free video player.
 *
 * xine 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.
 *
 * xine 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  02111-1307, USA
 *
 *
 * high level interface to rtsp servers.
 */

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>

#include "rtsp.h"
#include "rtsp_session.h"
#include "real.h"
#include "rmff.h"
#include "asmrp.h"

/*
#define LOG
*/

#define BUF_SIZE 4096
#define HEADER_SIZE 4096

struct rtsp_session_s {

  rtsp_t       *s;

  /* receive buffer */
  uint8_t       recv[BUF_SIZE];
  int           recv_size;
  int           recv_read;

  /* header buffer */
  uint8_t       header[HEADER_SIZE];
  int           header_len;
  int           header_read;

};

//rtsp_session_t *rtsp_session_start(char *mrl) {
rtsp_session_t *rtsp_session_start(int fd, char *mrl, char *path, char *host, int port) {

  rtsp_session_t *rtsp_session=malloc(sizeof(rtsp_session_t));
  char *server;
  char *mrl_line = NULL;
  rmff_header_t *h;
  uint32_t bandwidth=10485800;

connect:

  /* connect to server */
  rtsp_session->s=rtsp_connect(fd,mrl,path,host,port,NULL);
  if (!rtsp_session->s)
  {
    printf("rtsp_session: failed to connect to server %s\n", path);
    free(rtsp_session);
    return NULL;
  }

  /* looking for server type */
  if (rtsp_search_answers(rtsp_session->s,"Server"))
    server=strdup(rtsp_search_answers(rtsp_session->s,"Server"));
  else {
    if (rtsp_search_answers(rtsp_session->s,"RealChallenge1"))
      server=strdup("Real");
    else
      server=strdup("unknown");
  }
  if (strstr(server,"Real"))
  {
    /* we are talking to a real server ... */

    h=real_setup_and_get_header(rtsp_session->s, bandwidth);
    if (!h) {
      /* got an redirect? */
      if (rtsp_search_answers(rtsp_session->s, "Location"))
      {
        free(mrl_line);
	mrl_line=strdup(rtsp_search_answers(rtsp_session->s, "Location"));
        printf("rtsp_session: redirected to %s\n", mrl_line);
	rtsp_close(rtsp_session->s);
	free(server);
  /* FIXME: this won't work in MPlayer, connection opened by caller */
	goto connect; /* *shudder* i made a design mistake somewhere */
      } else
      {
        printf("rtsp_session: session can not be established.\n");
        rtsp_close(rtsp_session->s);
        free(rtsp_session);
        return NULL;
      }
    }
	
    rtsp_session->header_len=rmff_dump_header(h,rtsp_session->header,1024);

    memcpy(rtsp_session->recv, rtsp_session->header, rtsp_session->header_len);
    rtsp_session->recv_size = rtsp_session->header_len;
    rtsp_session->recv_read = 0;
    
  } else
  {
    printf("rtsp_session: rtsp server type is '%s' instead of Real. Please report.\n",server);
    rtsp_close(rtsp_session->s);
    free(server);
    free(rtsp_session);
    return NULL;
  }
  free(server);
  
  return rtsp_session;
}

int rtsp_session_read (rtsp_session_t *this, char *data, int len) {
  
  int to_copy=len;
  char *dest=data;
  char *source=this->recv + this->recv_read;
  int fill=this->recv_size - this->recv_read;

  if (len < 0) return 0;
  while (to_copy > fill) {
    
    memcpy(dest, source, fill);
    to_copy -= fill;
    dest += fill;
    this->recv_read = 0;
    source = this->recv;
    this->recv_size = real_get_rdt_chunk (this->s, source);
    fill = this->recv_size;

    if (this->recv_size == 0) {
#ifdef LOG
      printf ("librtsp: %d of %d bytes provided\n", len-to_copy, len);
#endif
      return len-to_copy;
    }
  }
  
  memcpy(dest, source, to_copy);
  this->recv_read += to_copy;

#ifdef LOG
  printf ("librtsp: %d bytes provided\n", len);
#endif

  return len;
}

int rtsp_session_peek_header(rtsp_session_t *this, char *buf, int maxsize) {

  int len;

  len = (this->header_len < maxsize) ? this->header_len : maxsize;

  memcpy(buf, this->header, len);
  return len;
}

void rtsp_session_end(rtsp_session_t *session) {

  rtsp_close(session->s);
  free(session);
}

--- NEW FILE ---
/*
 * This file was ported to MPlayer from xine CVS rtsp_session.h,v 1.4 2003/01/31 14:06:18
 */

/*
 * Copyright (C) 2000-2002 the xine project
 *
 * This file is part of xine, a free video player.
 *
 * xine 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.
 *
 * xine 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  02111-1307, USA
 *
 *
 * high level interface to rtsp servers.
 */

#ifndef HAVE_RTSP_SESSION_H
#define HAVE_RTSP_SESSION_H

typedef struct rtsp_session_s rtsp_session_t;

rtsp_session_t *rtsp_session_start(int fd, char *mrl, char *path, char *host, int port);

int rtsp_session_read(rtsp_session_t *session, char *data, int len);

int rtsp_session_peek_header(rtsp_session_t *this, char *buf, int maxsize);

void rtsp_session_end(rtsp_session_t *session);

#endif

--- NEW FILE ---
/*
 * This file was ported to MPlayer from xine CVS sdpplin.c,v 1.1 2002/12/24 01:30:22
 */

/*
 * Copyright (C) 2002 the xine project
 *
 * This file is part of xine, a free video player.
 *
 * xine 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.
 *
 * xine 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  02111-1307, USA
 *
 *
 * sdp/sdpplin parser.
 *
 */
 
#include "rmff.h"
#include "rtsp.h"
#include "sdpplin.h"
#include "xbuffer.h"

/*
#define LOG
*/

/*
 * Decodes base64 strings (based upon b64 package)
 */

static char *b64_decode(const char *in, char *out, int *size)
{
  char dtable[256];              /* Encode / decode table */
  int i,j,k;

  for (i = 0; i < 255; i++) {
    dtable[i] = 0x80;
  }
  for (i = 'A'; i <= 'Z'; i++) {
    dtable[i] = 0 + (i - 'A');
  }
  for (i = 'a'; i <= 'z'; i++) {
    dtable[i] = 26 + (i - 'a');
  }
  for (i = '0'; i <= '9'; i++) {
    dtable[i] = 52 + (i - '0');
  }
  dtable['+'] = 62;
  dtable['/'] = 63;
  dtable['='] = 0;

  k=0;
  
  /*CONSTANTCONDITION*/
  for (j=0; j<strlen(in); j+=4)
  {
    char a[4], b[4];

    for (i = 0; i < 4; i++) {
      int c = in[i+j];

      if (dtable[c] & 0x80) {
        printf("Illegal character '%c' in input.\n", c);
//        exit(1);
        return NULL;
      }
      a[i] = (char) c;
      b[i] = (char) dtable[c];
    }
    out = xbuffer_ensure_size(out, k+3);
    out[k++] = (b[0] << 2) | (b[1] >> 4);
    out[k++] = (b[1] << 4) | (b[2] >> 2);
    out[k++] = (b[2] << 6) | b[3];
    i = a[2] == '=' ? 1 : (a[3] == '=' ? 2 : 3);
    if (i < 3) {
      out[k]=0;
      *size=k;
      return out;
    }
  }
  out[k]=0;
  *size=k;
  return out;
}

static char *nl(char *data) {

  return strchr(data,'\n')+1;
}

static int filter(const char *in, const char *filter, char **out) {

  int flen=strlen(filter);
  int len=strchr(in,'\n')-in;

  if (!strncmp(in,filter,flen))
  {
    if(in[flen]=='"') flen++;
    if(in[len-1]==13) len--;
    if(in[len-1]=='"') len--;
    *out = xbuffer_copyin(*out, 0, in+flen, len-flen+1);
    (*out)[len-flen]=0;

    return len-flen;
  }
  
  return 0;
}
static sdpplin_stream_t *sdpplin_parse_stream(char **data) {

  sdpplin_stream_t *desc=calloc(1,sizeof(sdpplin_stream_t));
  char      *buf=xbuffer_init(32);
  char      *decoded=xbuffer_init(32);
  int       handled;
    
  if (filter(*data, "m=", &buf)) {
    desc->id = strdup(buf);
  } else
  {
    printf("sdpplin: no m= found.\n");
    free(desc);
    xbuffer_free(buf);
    return NULL;
  }
  *data=nl(*data);

  while (**data && *data[0]!='m') {

    handled=0;
    
    if(filter(*data,"a=control:streamid=",&buf)) {
      desc->stream_id=atoi(buf);
      handled=1;
      *data=nl(*data);
    }

    if(filter(*data,"a=MaxBitRate:integer;",&buf)) {
      desc->max_bit_rate=atoi(buf);
      if (!desc->avg_bit_rate)
        desc->avg_bit_rate=desc->max_bit_rate;
      handled=1;
      *data=nl(*data);
    }

    if(filter(*data,"a=MaxPacketSize:integer;",&buf)) {
      desc->max_packet_size=atoi(buf);
      if (!desc->avg_packet_size)
        desc->avg_packet_size=desc->max_packet_size;
      handled=1;
      *data=nl(*data);
    }
    
    if(filter(*data,"a=StartTime:integer;",&buf)) {
      desc->start_time=atoi(buf);
      handled=1;
      *data=nl(*data);
    }

    if(filter(*data,"a=Preroll:integer;",&buf)) {
      desc->preroll=atoi(buf);
      handled=1;
      *data=nl(*data);
    }

    if(filter(*data,"a=length:npt=",&buf)) {
      desc->duration=(uint32_t)(atof(buf)*1000);
      handled=1;
      *data=nl(*data);
    }

    if(filter(*data,"a=StreamName:string;",&buf)) {
      desc->stream_name=strdup(buf);
      desc->stream_name_size=strlen(desc->stream_name);
      handled=1;
      *data=nl(*data);
    }

    if(filter(*data,"a=mimetype:string;",&buf)) {
      desc->mime_type=strdup(buf);
      desc->mime_type_size=strlen(desc->mime_type);
      handled=1;
      *data=nl(*data);
    }

    if(filter(*data,"a=OpaqueData:buffer;",&buf)) {
      decoded = b64_decode(buf, decoded, &(desc->mlti_data_size));
      desc->mlti_data=malloc(sizeof(char)*desc->mlti_data_size);
      memcpy(desc->mlti_data, decoded, desc->mlti_data_size);
      handled=1;
      *data=nl(*data);
#ifdef LOG
      printf("mlti_data_size: %i\n", desc->mlti_data_size);
#endif
    }
    
    if(filter(*data,"a=ASMRuleBook:string;",&buf)) {
      desc->asm_rule_book=strdup(buf);
      handled=1;
      *data=nl(*data);
    }

    if(!handled) {
#ifdef LOG
      int len=strchr(*data,'\n')-(*data);
      buf = xbuffer_copyin(buf, 0, *data, len+1);
      buf[len]=0;
      printf("libreal: sdpplin: not handled: '%s'\n", buf);
#endif
      *data=nl(*data);
    }
  }

  xbuffer_free(buf);
  xbuffer_free(decoded);
  
  return desc;
}

sdpplin_t *sdpplin_parse(char *data) {

  sdpplin_t        *desc=calloc(1,sizeof(sdpplin_t));
  sdpplin_stream_t *stream;
  char             *buf=xbuffer_init(32);
  char             *decoded=xbuffer_init(32);
  int              handled;
  int              len;

  while (*data) {

    handled=0;
    
    if (filter(data, "m=", &buf)) {
      stream=sdpplin_parse_stream(&data);
#ifdef LOG
      printf("got data for stream id %u\n", stream->stream_id);
#endif
      desc->stream[stream->stream_id]=stream;
      continue;
    }

    if(filter(data,"a=Title:buffer;",&buf)) {
      decoded=b64_decode(buf, decoded, &len);
      desc->title=strdup(decoded);
      handled=1;
      data=nl(data);
    }
    
    if(filter(data,"a=Author:buffer;",&buf)) {
      decoded=b64_decode(buf, decoded, &len);
      desc->author=strdup(decoded);
      handled=1;
      data=nl(data);
    }
    
    if(filter(data,"a=Copyright:buffer;",&buf)) {
      decoded=b64_decode(buf, decoded, &len);
      desc->copyright=strdup(decoded);
      handled=1;
      data=nl(data);
    }
    
    if(filter(data,"a=Abstract:buffer;",&buf)) {
      decoded=b64_decode(buf, decoded, &len);
      desc->abstract=strdup(decoded);
      handled=1;
      data=nl(data);
    }
    
    if(filter(data,"a=StreamCount:integer;",&buf)) {
      desc->stream_count=atoi(buf);
      desc->stream=malloc(sizeof(sdpplin_stream_t*)*desc->stream_count);
      handled=1;
      data=nl(data);
    }

    if(filter(data,"a=Flags:integer;",&buf)) {
      desc->flags=atoi(buf);
      handled=1;
      data=nl(data);
    }

    if(!handled) {
#ifdef LOG
      int len=strchr(data,'\n')-data;
      buf = xbuffer_copyin(buf, 0, data, len+1);
      buf[len]=0;
      printf("libreal: sdpplin: not handled: '%s'\n", buf);
#endif
      data=nl(data);
    }
  }

  xbuffer_free(buf);
  xbuffer_free(decoded);
  
  return desc;
}

void sdpplin_free(sdpplin_t *description) {

  /* TODO: free strings */
  free(description);
}


--- NEW FILE ---
/*
 * This file was ported to MPlayer from xine CVS sdpplin.h,v 1.1 2002/12/24 01:30:22
 */

/*
 * Copyright (C) 2002 the xine project
 *
 * This file is part of xine, a free video player.
 *
 * xine 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.
 *
 * xine 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  02111-1307, USA
 *
 *
 * sdp/sdpplin parser.
 *
 */
 
#ifndef HAVE_SDPPLIN_H
#define HAVE_SDPPLIN_H

#include "rmff.h"
#include "rtsp.h"

#ifdef __CYGWIN__
#define uint32_t unsigned int
#define uint16_t unsigned short int
#define uint8_t unsigned char
#endif

typedef struct {

  char *id;
  char *bandwidth;

  int stream_id;
  char *range;
  char *length;
  char *rtpmap;
  char *mimetype;
  int min_switch_overlap;
  int start_time;
  int end_one_rule_end_all;
  int avg_bit_rate;
  int max_bit_rate;
  int avg_packet_size;
  int max_packet_size;
  int end_time;
  int seek_greater_on_switch;
  int preroll;

  int duration;
  char *stream_name;
  int stream_name_size;
  char *mime_type;
  int mime_type_size;
  char *mlti_data;
  int mlti_data_size;
  int  rmff_flags_length;
  char *rmff_flags;
  int  asm_rule_book_length;
  char *asm_rule_book;

} sdpplin_stream_t;

typedef struct {

  int sdp_version, sdpplin_version;
  char *owner;
  char *session_name;
  char *session_info;
  char *uri;
  char *email;
  char *phone;
  char *connection;
  char *bandwidth;

  int flags;
  int is_real_data_type;
  int stream_count;
  char *title;
  char *author;
  char *copyright;
  char *keywords;
  int  asm_rule_book_length;
  char *asm_rule_book;
  char *abstract;
  char *range;
  int avg_bit_rate;
  int max_bit_rate;
  int avg_packet_size;
  int max_packet_size;
  int preroll;
  int duration;

  sdpplin_stream_t **stream;
  
} sdpplin_t;

sdpplin_t *sdpplin_parse(char *data);

void sdpplin_free(sdpplin_t *description);

#endif


--- NEW FILE ---
/* 
 * xbuffer code
 *
 * Includes a minimalistic replacement for xine_buffer functions used in
 * Real streaming code. Only function needed by this code are implemented.
 *
 * Most code comes from xine_buffer.c Copyright (C) 2002 the xine project
 *
 * WARNING: do not mix original xine_buffer functions with this code!
 * xbuffers behave like xine_buffers, but are not byte-compatible with them.
 * You must take care of pointers returned by xbuffers functions (no macro to
 * do it automatically)
 *
 */

#include <stdlib.h>
#include <inttypes.h>
#include "xbuffer.h"


typedef struct {
  uint32_t size;
  uint32_t chunk_size;
} xbuffer_header_t;

#define XBUFFER_HEADER_SIZE sizeof (xbuffer_header_t)



void *xbuffer_init(int chunk_size) {  
  uint8_t *data=calloc(1,chunk_size+XBUFFER_HEADER_SIZE);

  xbuffer_header_t *header=(xbuffer_header_t*)data;

  header->size=chunk_size;
  header->chunk_size=chunk_size;

  return data+XBUFFER_HEADER_SIZE;
}



void *xbuffer_free(void *buf) {
  if (!buf) {
    return NULL;
  }

  free(((uint8_t*)buf)-XBUFFER_HEADER_SIZE);

  return NULL;
}



void *xbuffer_copyin(void *buf, int index, const void *data, int len) {
    if (!buf || !data) {
    return NULL;
  }

  buf = xbuffer_ensure_size(buf, index+len);
  memcpy(((uint8_t*)buf)+index, data, len);

  return buf;
}



void *xbuffer_ensure_size(void *buf, int size) {
  xbuffer_header_t *xbuf;
  int new_size;

  if (!buf) {
    return 0;
  }

  xbuf = ((xbuffer_header_t*)(((uint8_t*)buf)-XBUFFER_HEADER_SIZE));
  
  if (xbuf->size < size) {
    new_size = size + xbuf->chunk_size - (size % xbuf->chunk_size);
    xbuf->size = new_size;
    buf = ((uint8_t*)realloc(((uint8_t*)buf)-XBUFFER_HEADER_SIZE,
          new_size+XBUFFER_HEADER_SIZE)) + XBUFFER_HEADER_SIZE;
  }

  return buf;
}

--- NEW FILE ---
/* 
 * xbuffer code
 *
 * Includes a minimalistic replacement for xine_buffer functions used in
 * Real streaming code. Only function needed by this code are implemented.
 *
 * Most code comes from xine_buffer.c Copyright (C) 2002 the xine project
 *
 * WARNING: do not mix original xine_buffer functions with this code!
 * xbuffers behave like xine_buffers, but are not byte-compatible with them.
 * You must take care of pointers returned by xbuffers functions (no macro to
 * do it automatically)
 *
 */


#ifndef _XCL_H_
#define _XCL_H_

void *xbuffer_init(int chunk_size);
void *xbuffer_free(void *buf);
void *xbuffer_copyin(void *buf, int index, const void *data, int len);
void *xbuffer_ensure_size(void *buf, int size);

#endif



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