m_option.c

/*
 * This file is part of MPlayer.
 *
 * MPlayer 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.
 *
 * MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

/// \file
/// \ingroup Options

#include "config.h"

#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <math.h>
#include <stdio.h>
#include <stdarg.h>
#include <inttypes.h>
#include <unistd.h>

#include "m_option.h"
//#include "m_config.h"
#include "mp_msg.h"
#include "mp_global.h"
#include "stream/url.h"
#include "libavutil/avstring.h"
#include "libavutil/attributes.h"

// Don't free for 'production' atm
#ifndef MP_DEBUG
//#define NO_FREE
#endif

const m_option_t* m_option_list_find(const m_option_t* list,const char* name) {
  int i;

  for(i = 0 ; list[i].name ; i++) {
    int l = strlen(list[i].name) - 1;
    if((list[i].type->flags & M_OPT_TYPE_ALLOW_WILDCARD) &&
       (l > 0) && (list[i].name[l] == '*')) {
      if(strncasecmp(list[i].name,name,l) == 0)
	return &list[i];
    } else if(strcasecmp(list[i].name,name) == 0)
      return &list[i];
  }
  return NULL;
}

// Default function that just does a memcpy

static void copy_opt(const m_option_t* opt,void* dst,const void* src) {
  if(dst && src)
    memcpy(dst,src,opt->type->size);
}

// Helper for the print funcs (from man printf)
static char* dup_printf(const char *fmt, ...) {
  /* Guess we need no more than 50 bytes. */
  int n, size = 50;
  char *p;
  va_list ap;
  if ((p = malloc (size)) == NULL)
    return NULL;
  while (1) {
    /* Try to print in the allocated space. */
    va_start(ap, fmt);
    n = vsnprintf (p, size, fmt, ap);
    va_end(ap);
    /* If that worked, return the string. */
    if (n > -1 && n < size)
      return p;
    /* Else try again with more space. */
    if (n > -1)    /* glibc 2.1 */
      size = n+1; /* precisely what is needed */
    else           /* glibc 2.0 */
      size *= 2;  /* twice the old size */
    if ((p = realloc (p, size)) == NULL)
      return NULL;
  }
}


// Flag

#define VAL(x) (*(int*)(x))

static int parse_flag(const m_option_t* opt,const char *name, const char *param, void* dst, int src) {
  if (src == M_CONFIG_FILE) {
    if(!param) return M_OPT_MISSING_PARAM;
    if (!strcasecmp(param, "yes") ||	/* any other language? */
	!strcasecmp(param, "on") ||
	!strcasecmp(param, "ja") ||
	!strcasecmp(param, "si") ||
	!strcasecmp(param, "igen") ||
	!strcasecmp(param, "y") ||
	!strcasecmp(param, "j") ||
	!strcasecmp(param, "i") ||
	!strcasecmp(param, "tak") ||
	!strcasecmp(param, "ja") ||
	!strcasecmp(param, "true") ||
	!strcmp(param, "1")) {
      if(dst) VAL(dst) = opt->max;
    } else if (!strcasecmp(param, "no") ||
	       !strcasecmp(param, "off") ||
	       !strcasecmp(param, "nein") ||
	       !strcasecmp(param, "nicht") ||
	       !strcasecmp(param, "nem") ||
	       !strcasecmp(param, "n") ||
	       !strcasecmp(param, "nie") ||
	       !strcasecmp(param, "nej") ||
	       !strcasecmp(param, "false") ||
	       !strcmp(param, "0")) {
      if(dst) VAL(dst) = opt->min;
    } else {
      mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Invalid parameter for %s flag: %s\n",name, param);
      return M_OPT_INVALID;
    }
    return 1;
  } else {
    if(dst) VAL(dst) = opt->max;
    return 0;
  }
}

static char* print_flag(const m_option_t* opt,  const void* val) {
  if(VAL(val) == opt->min)
    return strdup("no");
  else
    return strdup("yes");
}

const m_option_type_t m_option_type_flag = {
  "Flag",
  "need yes or no in config files",
  sizeof(int),
  0,
  parse_flag,
  print_flag,
  copy_opt,
  copy_opt,
  NULL,
  NULL
};

// Integer

static int parse_int(const m_option_t* opt,const char *name, const char *param, void* dst, int av_unused src) {
  long long tmp_int;
  char *endptr;

  if (param == NULL)
    return M_OPT_MISSING_PARAM;

  tmp_int = strtoll(param, &endptr, 10);
  if (*endptr)
    tmp_int = strtoll(param, &endptr, 0);
  if (*endptr) {
    mp_msg(MSGT_CFGPARSER, MSGL_ERR, "The %s option must be an integer: %s\n",name, param);
    return M_OPT_INVALID;
  }

  if ((opt->flags & M_OPT_MIN) && (tmp_int < opt->min)) {
    mp_msg(MSGT_CFGPARSER, MSGL_ERR, "The %s option must be >= %d: %s\n", name, (int) opt->min, param);
    return M_OPT_OUT_OF_RANGE;
  }

  if ((opt->flags & M_OPT_MAX) && (tmp_int > opt->max)) {
    mp_msg(MSGT_CFGPARSER, MSGL_ERR, "The %s option must be <= %d: %s\n",name, (int) opt->max, param);
    return M_OPT_OUT_OF_RANGE;
  }

  if(dst) {
    if (opt->type->size == sizeof(int64_t))
      *(int64_t *)dst = tmp_int;
    else
      VAL(dst) = tmp_int;
  }

  return 1;
}

static char* print_int(const m_option_t* opt,  const void* val) {
  if (opt->type->size == sizeof(int64_t))
    return dup_printf("%"PRId64, *(const int64_t *)val);
  return dup_printf("%d",VAL(val));
}

const m_option_type_t m_option_type_int = {
  "Integer",
  "",
  sizeof(int),
  0,
  parse_int,
  print_int,
  copy_opt,
  copy_opt,
  NULL,
  NULL
};

const m_option_type_t m_option_type_int64 = {
  "Integer64",
  "",
  sizeof(int64_t),
  0,
  parse_int,
  print_int,
  copy_opt,
  copy_opt,
  NULL,
  NULL
};

// Float

#undef VAL
#define VAL(x) (*(double*)(x))

static int parse_double(const m_option_t* opt,const char *name, const char *param, void* dst, int av_unused src) {
  double tmp_float;
  char* endptr;

  if (param == NULL)
    return M_OPT_MISSING_PARAM;

  tmp_float = strtod(param, &endptr);

  switch(*endptr) {
  case ':':
  case '/':
    tmp_float /= strtod(endptr+1, &endptr);
    break;
  case '.':
  case ',':
    /* we also handle floats specified with
     * non-locale decimal point ::atmos
     */
    if(tmp_float<0)
      tmp_float -= 1.0/pow(10,strlen(endptr+1)) * strtod(endptr+1, &endptr);
    else
      tmp_float += 1.0/pow(10,strlen(endptr+1)) * strtod(endptr+1, &endptr);
    break;
  }

  if (*endptr) {
    mp_msg(MSGT_CFGPARSER, MSGL_ERR, "The %s option must be a floating point "
	   "number or a ratio (numerator[:/]denominator): %s\n",name, param);
    return M_OPT_INVALID;
  }

  if (opt->flags & M_OPT_MIN)
    if (tmp_float < opt->min) {
      mp_msg(MSGT_CFGPARSER, MSGL_ERR, "The %s option must be >= %f: %s\n", name, opt->min, param);
      return M_OPT_OUT_OF_RANGE;
    }

  if (opt->flags & M_OPT_MAX)
    if (tmp_float > opt->max) {
      mp_msg(MSGT_CFGPARSER, MSGL_ERR, "The %s option must be <= %f: %s\n", name, opt->max, param);
      return M_OPT_OUT_OF_RANGE;
    }

  if(dst) VAL(dst) = tmp_float;
  return 1;
}

static char* print_double(const m_option_t* av_unused opt,  const void* val) {
  return dup_printf("%f",VAL(val));
}

const m_option_type_t m_option_type_double = {
  "Double",
  "double precision floating point number or ratio (numerator[:/]denominator)",
  sizeof(double),
  0,
  parse_double,
  print_double,
  copy_opt,
  copy_opt,
  NULL,
  NULL
};

#undef VAL
#define VAL(x) (*(float*)(x))

static int parse_float(const m_option_t* opt,const char *name, const char *param, void* dst, int src) {
    double tmp;
    int r= parse_double(opt, name, param, &tmp, src);
    if(r==1 && dst) VAL(dst) = tmp;
    return r;
}

static char* print_float(const m_option_t* av_unused opt,  const void* val) {
  return dup_printf("%f",VAL(val));
}

const m_option_type_t m_option_type_float = {
  "Float",
  "floating point number or ratio (numerator[:/]denominator)",
  sizeof(float),
  0,
  parse_float,
  print_float,
  copy_opt,
  copy_opt,
  NULL,
  NULL
};

///////////// Position
#undef VAL
#define VAL(x) (*(off_t*)(x))

static int parse_position(const m_option_t* opt,const char *name, const char *param, void* dst, int src) {
  off_t tmp_off;
  char dummy;

  if (param == NULL)
    return M_OPT_MISSING_PARAM;
  if (sscanf(param, sizeof(off_t) == sizeof(int) ?
	     "%d%c" : "%"PRId64"%c", &tmp_off, &dummy) != 1) {
    mp_msg(MSGT_CFGPARSER, MSGL_ERR, "The %s option must be an integer: %s\n",opt->name,param);
    return M_OPT_INVALID;
  }

  if (opt->flags & M_OPT_MIN)
    if (tmp_off < opt->min) {
      mp_msg(MSGT_CFGPARSER, MSGL_ERR,
	      "The %s option must be >= %"PRId64": %s\n",
	     name, (int64_t) opt->min, param);
      return M_OPT_OUT_OF_RANGE;
    }

  if (opt->flags & M_OPT_MAX)
    if (tmp_off > opt->max) {
      mp_msg(MSGT_CFGPARSER, MSGL_ERR,
	      "The %s option must be <= %"PRId64": %s\n",
	     name, (int64_t) opt->max, param);
      return M_OPT_OUT_OF_RANGE;
    }

  if(dst)
    VAL(dst) = tmp_off;
  return 1;
}

static char* print_position(const m_option_t* opt,  const void* val) {
  return dup_printf("%"PRId64,(int64_t)VAL(val));
}

const m_option_type_t m_option_type_position = {
  "Position",
  "Integer (off_t)",
  sizeof(off_t),
  0,
  parse_position,
  print_position,
  copy_opt,
  copy_opt,
  NULL,
  NULL
};


///////////// String

#undef VAL
#define VAL(x) (*(char**)(x))

static int parse_str(const m_option_t* opt,const char *name, const char *param, void* dst, int src) {


  if (param == NULL)
      return M_OPT_MISSING_PARAM;

  if ((opt->flags & M_OPT_MIN) && (strlen(param) < opt->min)) {
    mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Parameter must be >= %d chars: %s\n",
	   (int) opt->min, param);
    return M_OPT_OUT_OF_RANGE;
  }

  if ((opt->flags & M_OPT_MAX) && (strlen(param) > opt->max)) {
    mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Parameter must be <= %d chars: %s\n",
	   (int) opt->max, param);
    return M_OPT_OUT_OF_RANGE;
  }

  if(dst) {
    free(VAL(dst));
    VAL(dst) = strdup(param);
  }

  return 1;

}

static char* print_str(const m_option_t* opt,  const void* val) {
  return (val && VAL(val) && strlen(VAL(val)) > 0) ? strdup(VAL(val)) : NULL;
}

static void copy_str(const m_option_t* opt,void* dst, const void* src) {
  if(dst && src) {
#ifndef NO_FREE
    free(VAL(dst)); //FIXME!!!
#endif
    VAL(dst) = VAL(src) ? strdup(VAL(src)) : NULL;
  }
}

static void free_str(void* src) {
  if(src && VAL(src)){
#ifndef NO_FREE
    free(VAL(src)); //FIXME!!!
#endif
    VAL(src) = NULL;
  }
}

const m_option_type_t m_option_type_string = {
  "String",
  "",
  sizeof(char*),
  M_OPT_TYPE_DYNAMIC,
  parse_str,
  print_str,
  copy_str,
  copy_str,
  copy_str,
  free_str
};

//////////// String list

#define LIST_SEPARATOR ','
#undef VAL
#define VAL(x) (*(char***)(x))

#define OP_NONE 0
#define OP_ADD 1
#define OP_PRE 2
#define OP_DEL 3
#define OP_CLR 4

static void free_str_list(void* dst) {
  char** d;
  int i;

  if(!dst || !VAL(dst)) return;
  d = VAL(dst);

// FIXME!!!
#ifndef NO_FREE
  for(i = 0 ; d[i] != NULL ; i++)
    free(d[i]);
  free(d);
#endif
  VAL(dst) = NULL;
}

static int str_list_add(char** add, int n,void* dst,int pre) {
  char** lst;
  int ln;

  if(!dst) return M_OPT_PARSER_ERR;
  lst = VAL(dst);

  for(ln = 0 ; lst && lst[ln] ; ln++)
    /**/;

  lst = realloc(lst,(n+ln+1)*sizeof(char*));

  if(pre) {
    memmove(&lst[n],lst,ln*sizeof(char*));
    memcpy(lst,add,n*sizeof(char*));
  } else
    memcpy(&lst[ln],add,n*sizeof(char*));
  // (re-)add NULL-termination
  lst[ln+n] = NULL;

  free(add);

  VAL(dst) = lst;

  return 1;
}

static int str_list_del(char** del, int n,void* dst) {
  char **lst,*ep,**d;
  int i,ln,s;
  long idx;

  if(!dst) return M_OPT_PARSER_ERR;
  lst = VAL(dst);

  for(ln = 0 ; lst && lst[ln] ; ln++)
    /**/;
  s = ln;

  for(i = 0 ; del[i] != NULL ; i++) {
    idx = strtol(del[i], &ep, 0);
    if(*ep) {
      mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Invalid index: %s\n",del[i]);
      free(del[i]);
      continue;
    }
    free(del[i]);
    if(idx < 0 || idx >= ln) {
      mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Index %ld is out of range.\n",idx);
      continue;
    } else if(!lst[idx])
      continue;
    free(lst[idx]);
    lst[idx] = NULL;
    s--;
  }
  free(del);

  if(s == 0) {
    free(lst);
    VAL(dst) = NULL;
    return 1;
  }

  d = calloc(s+1,sizeof(char*));
  for(i = 0, n = 0 ; i < ln ; i++) {
    if(!lst[i]) continue;
    d[n] = lst[i];
    n++;
  }
  d[s] = NULL;

  free(lst);
  VAL(dst) = d;

  return 1;
}

static char *get_nextsep(char *ptr, char sep, int modify) {
    char *last_ptr = ptr;
    for(;;){
        ptr = strchr(ptr, sep);
        if(ptr && ptr>last_ptr && ptr[-1]=='\\'){
            if (modify) memmove(ptr-1, ptr, strlen(ptr)+1);
            else ptr++;
        }else
            break;
    }
    return ptr;
}

static int parse_str_list(const m_option_t* opt,const char *name, const char *param, void* dst, int src) {
  int n = 0,len = strlen(opt->name);
  char *str;
  char *ptr = (char *)param, *last_ptr, **res;
  int op = OP_NONE;

  if(opt->name[len-1] == '*' && ((int)strlen(name) > len - 1)) {
    const char* n = &name[len-1];
    if(strcasecmp(n,"-add") == 0)
      op = OP_ADD;
    else if(strcasecmp(n,"-pre") == 0)
      op = OP_PRE;
    else if(strcasecmp(n,"-del") == 0)
      op = OP_DEL;
    else if(strcasecmp(n,"-clr") == 0)
      op = OP_CLR;
    else
      return M_OPT_UNKNOWN;
  }

  // Clear the list ??
  if(op == OP_CLR) {
    if(dst)
      free_str_list(dst);
    return 0;
  }

  // All other ops need a param
  if (param == NULL || strlen(param) == 0)
      return M_OPT_MISSING_PARAM;


  while(ptr[0] != '\0') {
    ptr = get_nextsep(ptr, LIST_SEPARATOR, 0);
    if(!ptr) {
      n++;
      break;
    }
    ptr++;
    n++;
  }
  if(n == 0)
    return M_OPT_INVALID;
  if( ((opt->flags & M_OPT_MIN) && (n < opt->min)) ||
      ((opt->flags & M_OPT_MAX) && (n > opt->max)) )
    return M_OPT_OUT_OF_RANGE;

  if(!dst) return 1;

  res = malloc((n+2)*sizeof(char*));
  ptr = str = strdup(param);
  n = 0;

  while(1) {
    last_ptr = ptr;
    ptr = get_nextsep(ptr, LIST_SEPARATOR, 1);
    if(!ptr) {
      res[n] = strdup(last_ptr);
      n++;
      break;
    }
    len = ptr - last_ptr;
    res[n] = malloc(len + 1);
    if(len) strncpy(res[n],last_ptr,len);
    res[n][len] = '\0';
    ptr++;
    n++;
  }
  res[n] = NULL;
  free(str);

  switch(op) {
  case OP_ADD:
    return str_list_add(res,n,dst,0);
  case OP_PRE:
    return str_list_add(res,n,dst,1);
  case OP_DEL:
    return str_list_del(res,n,dst);
  }

  if(VAL(dst))
    free_str_list(dst);
  VAL(dst) = res;

  return 1;
}

static void copy_str_list(const m_option_t* opt,void* dst, const void* src) {
  int n;
  char **d,**s;

  if(!(dst && src)) return;
  s = VAL(src);

  if(VAL(dst))
    free_str_list(dst);

  if(!s) {
    VAL(dst) = NULL;
    return;
  }

  for(n = 0 ; s[n] != NULL ; n++)
    /* NOTHING */;
  d = malloc((n+1)*sizeof(char*));
  for( ; n >= 0 ; n--)
    d[n] = s[n] ? strdup(s[n]) : NULL;

  VAL(dst) = d;
}

static char* print_str_list(const m_option_t* opt, const void* src) {
  char **lst = NULL;
  char *ret = NULL,*last = NULL;
  int i;

  if(!(src && VAL(src))) return NULL;
  lst = VAL(src);

  for(i = 0 ; lst[i] ; i++) {
    if(last) {
      ret = dup_printf("%s,%s",last,lst[i]);
      free(last);
    } else
      ret = strdup(lst[i]);
    last = ret;
  }
  if(last && last != ret) free(last);
  return ret;
}

const m_option_type_t m_option_type_string_list = {
  "String list",
  "A list of strings separated by ','\n"
  "Option with a name ending in an * permits using the following suffix: \n"
  "\t-add: Add the given parameters at the end of the list.\n"
  "\t-pre: Add the given parameters at the beginning of the list.\n"
  "\t-del: Remove the entry at the given indices.\n"
  "\t-clr: Clear the list.\n"
  "e.g: -vf-add flip,mirror -vf-del 2,5\n",
  sizeof(char**),
  M_OPT_TYPE_DYNAMIC | M_OPT_TYPE_ALLOW_WILDCARD,
  parse_str_list,
  print_str_list,
  copy_str_list,
  copy_str_list,
  copy_str_list,
  free_str_list
};


///////////////////  Func based options

static int parse_call_func(const m_option_t* opt,const char *name, const char *param, void* dst, int src) {
  int res = ((m_opt_func_param_t) opt->p)(opt,param);
  if (res < 0)
    return res;
  return 1;
}

// special variant, will not have a history/be able to
// be used as per-file option etc.
const m_option_type_t m_option_type_func_param_immediate = {
  "Func param once",
  "",
  0,
  M_OPT_TYPE_INDIRECT,
  parse_call_func,
  NULL,
  NULL, // Nothing to do on save
  NULL,
  NULL,
  NULL
};

// A chained list to save the various calls for func_param and func_full
typedef struct m_func_save m_func_save_t;
struct m_func_save {
  m_func_save_t* next;
  char* name;
  char* param;
};

#undef VAL
#define VAL(x) (*(m_func_save_t**)(x))

static void free_func_pf(void* src) {
  m_func_save_t *s,*n;

  if(!src) return;

  s = VAL(src);

  while(s) {
    n = s->next;
    free(s->name);
    free(s->param);
    free(s);
    s = n;
  }
  VAL(src) = NULL;
}

// Parser for func_param and func_full
static int parse_func_pf(const m_option_t* opt,const char *name, const char *param, void* dst, int src) {
  m_func_save_t *s,*p;

  if(!dst)
    return 1;

  s = calloc(1,sizeof(m_func_save_t));
  s->name = strdup(name);
  s->param = param ? strdup(param) : NULL;

  p = VAL(dst);
  if(p) {
    for( ; p->next != NULL ; p = p->next)
      /**/;
    p->next = s;
  } else
    VAL(dst) = s;

  return 1;
}

static void copy_func_pf(const m_option_t* opt,void* dst, const void* src) {
  m_func_save_t *d = NULL, *s,* last = NULL;

  if(!(dst && src)) return;
  s = VAL(src);

  if(VAL(dst))
    free_func_pf(dst);

  while(s) {
    d = calloc(1,sizeof(m_func_save_t));
    d->name = strdup(s->name);
    d->param = s->param ? strdup(s->param) : NULL;
    if(last)
      last->next = d;
    else
      VAL(dst) = d;
    last = d;
    s = s->next;
  }


}

/////////////////// Func_param

static void set_func_param(const m_option_t* opt, void* dst, const void* src) {
  m_func_save_t* s;

  if(!src) return;
  s = VAL(src);

  if(!s) return;

  // Revert if needed
  if(opt->priv) ((m_opt_default_func_t)opt->priv)(opt,opt->name);
  for( ; s != NULL ; s = s->next)
    ((m_opt_func_param_t) opt->p)(opt,s->param);
}

const m_option_type_t m_option_type_func_param = {
  "Func param",
  "",
  sizeof(m_func_save_t*),
  M_OPT_TYPE_INDIRECT,
  parse_func_pf,
  NULL,
  NULL, // Nothing to do on save
  set_func_param,
  copy_func_pf,
  free_func_pf
};

/////////////////// Func_full

static void set_func_full(const m_option_t* opt, void* dst, const void* src) {
  m_func_save_t* s;

  if(!src) return;

  for(s = VAL(src) ; s ; s = s->next) {
    // Revert if needed
    if(opt->priv) ((m_opt_default_func_t)opt->priv)(opt,s->name);
    ((m_opt_func_full_t) opt->p)(opt,s->name,s->param);
  }
}

const m_option_type_t m_option_type_func_full = {
  "Func full",
  "",
  sizeof(m_func_save_t*),
  M_OPT_TYPE_ALLOW_WILDCARD|M_OPT_TYPE_INDIRECT,
  parse_func_pf,
  NULL,
  NULL, // Nothing to do on save
  set_func_full,
  copy_func_pf,
  free_func_pf
};

/////////////// Func

#undef VAL
#define VAL(x) (*(int*)(x))

static int parse_func(const m_option_t* opt,const char *name, const char *param, void* dst, int src) {
  if(dst)
    VAL(dst) += 1;
  return 0;
}

static void set_func(const m_option_t* opt,void* dst, const void* src) {
  int i;
  if(opt->priv) ((m_opt_default_func_t)opt->priv)(opt,opt->name);
  for(i = 0 ; i < VAL(src) ; i++)
    ((m_opt_func_t) opt->p)(opt);
}

const m_option_type_t m_option_type_func = {
  "Func",
  "",
  sizeof(int),
  M_OPT_TYPE_INDIRECT,
  parse_func,
  NULL,
  NULL, // Nothing to do on save
  set_func,
  NULL,
  NULL
};

/////////////////// Print

static int parse_print(const m_option_t* opt,const char *name, const char *param, void* dst, int src) {
  if(opt->type == CONF_TYPE_PRINT_INDIRECT)
    mp_msg(MSGT_CFGPARSER, MSGL_INFO, "%s", *(char **) opt->p);
  else if(opt->type == CONF_TYPE_PRINT_FUNC)
    return ((m_opt_func_full_t) opt->p)(opt,name,param);
  else
    mp_msg(MSGT_CFGPARSER, MSGL_INFO, "%s", (char *) opt->p);

  if(opt->priv == NULL)
    return M_OPT_EXIT;
  if(opt->priv == PRIV_NO_EXIT)
    return 0;
  return 1;
}

const m_option_type_t m_option_type_print = {
  "Print",
  "",
  0,
  0,
  parse_print,
  NULL,
  NULL,
  NULL,
  NULL,
  NULL
};

const m_option_type_t m_option_type_print_indirect = {
  "Print",
  "",
  0,
  0,
  parse_print,
  NULL,
  NULL,
  NULL,
  NULL,
  NULL
};

const m_option_type_t m_option_type_print_func = {
  "Print",
  "",
  0,
  M_OPT_TYPE_ALLOW_WILDCARD,
  parse_print,
  NULL,
  NULL,
  NULL,
  NULL,
  NULL
};


/////////////////////// Subconfig
#undef VAL
#define VAL(x) (*(char***)(x))

static int parse_subconf(const m_option_t* opt,const char *name, const char *param, void* dst, int src) {
  char *subparam;
  char *subopt;
  int nr = 0,i,r = 1;
  const m_option_t *subopts;
  const char *p;
  char** lst = NULL;

  if (param == NULL || strlen(param) == 0)
    return M_OPT_MISSING_PARAM;

  subparam = malloc(strlen(param)+1);
  subopt = malloc(strlen(param)+1);
  p = param;

  subopts = opt->p;

  while(p[0])
    {
      int optlen = strcspn(p, ":=");
      /* clear out */
      subopt[0] = subparam[0] = 0;
      av_strlcpy(subopt, p, optlen + 1);
      p = &p[optlen];
      if (p[0] == '=') {
        p = &p[1];
        if (p[0] == '"') {
          p = &p[1];
          optlen = strcspn(p, "\"");
          av_strlcpy(subparam, p, optlen + 1);
          p = &p[optlen];
          if (p[0] != '"') {
            mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Terminating '\"' missing for '%s'\n", subopt);
            r = M_OPT_INVALID;
            goto out;
          }
          p = &p[1];
        } else if (p[0] == '%') {
          p = &p[1];
          optlen = (int)strtol(p, (char**)&p, 0);
          if (!p || p[0] != '%' || (optlen > strlen(p) - 1)) {
            mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Invalid length %i for '%s'\n", optlen, subopt);
            r = M_OPT_INVALID;
            goto out;
          }
          p = &p[1];
          av_strlcpy(subparam, p, optlen + 1);
          p = &p[optlen];
        } else {
          optlen = strcspn(p, ":");
          av_strlcpy(subparam, p, optlen + 1);
          p = &p[optlen];
        }
      }
      if (p[0] == ':')
        p = &p[1];
      else if (p[0]) {
        mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Incorrect termination for '%s'\n", subopt);
        r = M_OPT_INVALID;
        goto out;
      }

      for(i = 0 ; subopts[i].name ; i++) {
        if(!strcmp(subopts[i].name,subopt)) break;
      }
      if(!subopts[i].name) {
        mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: Unknown suboption %s\n",name,subopt);
        r = M_OPT_UNKNOWN;
        goto out;
      }
      r = m_option_parse(&subopts[i],subopt,
                         subparam[0] == 0 ? NULL : subparam,NULL,src);
      if(r < 0) goto out;
      if(dst) {
        lst = realloc(lst,2 * (nr+2) * sizeof(char*));
        lst[2*nr] = strdup(subopt);
        lst[2*nr+1] = subparam[0] == 0 ? NULL : strdup(subparam);
        memset(&lst[2*(nr+1)],0,2*sizeof(char*));
        nr++;
      }
    }

  if(dst)
    VAL(dst) = lst;
  r = 1;

out:
  free(subparam);
  free(subopt);

  return r;
}

const m_option_type_t m_option_type_subconfig = {
  "Subconfig",
  "The syntax is -option opt1=foo:flag:opt2=blah",
  sizeof(int),
  M_OPT_TYPE_HAS_CHILD,
  parse_subconf,
  NULL,
  NULL,
  NULL,
  NULL,
  NULL
};

#include "libmpcodecs/img_format.h"

/* FIXME: snyc with img_format.h */
static struct {
  const char* name;
  unsigned int fmt;
} mp_imgfmt_list[] = {
  {"444p16le", IMGFMT_444P16_LE},
  {"444p16be", IMGFMT_444P16_BE},
  {"444p14le", IMGFMT_444P14_LE},
  {"444p14be", IMGFMT_444P14_BE},
  {"444p12le", IMGFMT_444P12_LE},
  {"444p12be", IMGFMT_444P12_BE},
  {"444p10le", IMGFMT_444P10_LE},
  {"444p10be", IMGFMT_444P10_BE},
  {"444p9le",  IMGFMT_444P9_LE},
  {"444p9be",  IMGFMT_444P9_BE},
  {"422p16le", IMGFMT_422P16_LE},
  {"422p16be", IMGFMT_422P16_BE},
  {"422p14le", IMGFMT_422P14_LE},
  {"422p14be", IMGFMT_422P14_BE},
  {"422p12le", IMGFMT_422P12_LE},
  {"422p12be", IMGFMT_422P12_BE},
  {"422p10le", IMGFMT_422P10_LE},
  {"422p10be", IMGFMT_422P10_BE},
  {"422p9le",  IMGFMT_422P9_LE},
  {"422p9be",  IMGFMT_422P9_BE},
  {"420p16le", IMGFMT_420P16_LE},
  {"420p16be", IMGFMT_420P16_BE},
  {"420p10le", IMGFMT_420P10_LE},
  {"420p10be", IMGFMT_420P10_BE},
  {"420p9le",  IMGFMT_420P9_LE},
  {"420p9be",  IMGFMT_420P9_BE},
  {"444p16",   IMGFMT_444P16},
  {"422p16",   IMGFMT_422P16},
  {"422p10",   IMGFMT_422P10},
  {"420p16",   IMGFMT_420P16},
  {"420p10",   IMGFMT_420P10},
  {"420p9",    IMGFMT_420P9},
  {"444a", IMGFMT_444A},
  {"422a", IMGFMT_422A},
  {"420a", IMGFMT_420A},
  {"444p", IMGFMT_444P},
  {"422p", IMGFMT_422P},
  {"411p", IMGFMT_411P},
  {"440p", IMGFMT_440P},
  {"yuy2", IMGFMT_YUY2},
  {"yvyu", IMGFMT_YVYU},
  {"uyvy", IMGFMT_UYVY},
  {"yvu9", IMGFMT_YVU9},
  {"if09", IMGFMT_IF09},
  {"yv12", IMGFMT_YV12},
  {"i420", IMGFMT_I420},
  {"iyuv", IMGFMT_IYUV},
  {"clpl", IMGFMT_CLPL},
  {"hm12", IMGFMT_HM12},
  {"y800", IMGFMT_Y800},
  {"y8",   IMGFMT_Y8},
  {"y8a",  IMGFMT_Y8A},
  {"y16be", IMGFMT_Y16_BE},
  {"y16le", IMGFMT_Y16_LE},
  {"nv12", IMGFMT_NV12},
  {"nv21", IMGFMT_NV21},
  {"bgr48le", IMGFMT_BGR48LE},
  {"bgr48be", IMGFMT_BGR48BE},
  {"bgr24", IMGFMT_BGR24},
  {"bgr32", IMGFMT_BGR32},
  {"bgr16", IMGFMT_BGR16},
  {"bgr15", IMGFMT_BGR15},
  {"bgr12", IMGFMT_BGR12},
  {"bgr8", IMGFMT_BGR8},
  {"bgr4", IMGFMT_BGR4},
  {"bg4b", IMGFMT_BG4B},
  {"bgr1", IMGFMT_BGR1},
  {"rgb64be", IMGFMT_RGB64BE},
  {"rgb64le", IMGFMT_RGB64LE},
  {"rgb48be", IMGFMT_RGB48BE},
  {"rgb48le", IMGFMT_RGB48LE},
  {"rgb48ne", IMGFMT_RGB48NE},
  {"rgb24", IMGFMT_RGB24},
  {"rgb32", IMGFMT_RGB32},
  {"rgb16", IMGFMT_RGB16},
  {"rgb15", IMGFMT_RGB15},
  {"rgb12", IMGFMT_RGB12},
  {"rgb8", IMGFMT_RGB8},
  {"rgb4", IMGFMT_RGB4},
  {"rg4b", IMGFMT_RG4B},
  {"rgb1", IMGFMT_RGB1},
  {"rgba", IMGFMT_RGBA},
  {"argb", IMGFMT_ARGB},
  {"bgra", IMGFMT_BGRA},
  {"abgr", IMGFMT_ABGR},
  {"xyz12be",  IMGFMT_XYZ12LE},
  {"xyz12le",  IMGFMT_XYZ12BE},
  {"gbr14pbe", IMGFMT_GBR14PLE},
  {"gbr14ple", IMGFMT_GBR14PBE},
  {"gbr12pbe", IMGFMT_GBR12PLE},
  {"gbr12ple", IMGFMT_GBR12PBE},
  {"gbr24p", IMGFMT_GBR24P},
  {"mjpeg", IMGFMT_MJPEG},
  {"mjpg", IMGFMT_MJPEG},
  { NULL, 0 }
};

static int parse_imgfmt(const m_option_t* opt,const char *name, const char *param, void* dst, int src) {
  uint32_t fmt = 0;
  int i;

  if (param == NULL || strlen(param) == 0)
    return M_OPT_MISSING_PARAM;

  if(!strcmp(param,"help")) {
    mp_msg(MSGT_CFGPARSER, MSGL_INFO, "Available formats:");
    for(i = 0 ; mp_imgfmt_list[i].name ; i++)
      mp_msg(MSGT_CFGPARSER, MSGL_INFO, " %s",mp_imgfmt_list[i].name);
    mp_msg(MSGT_CFGPARSER, MSGL_INFO, "\n");
    return M_OPT_EXIT - 1;
  }

  if (sscanf(param, "0x%x", &fmt) != 1)
  {
  for(i = 0 ; mp_imgfmt_list[i].name ; i++) {
    if(!strcasecmp(param,mp_imgfmt_list[i].name)) {
      fmt=mp_imgfmt_list[i].fmt;
      break;
    }
  }
  if(!mp_imgfmt_list[i].name) {
    mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: unknown format name: '%s'\n",name,param);
    return M_OPT_INVALID;
  }
  }

  if(dst)
    *((uint32_t*)dst) = fmt;

  return 1;
}

const m_option_type_t m_option_type_imgfmt = {
  "Image format",
  "Please report any missing colorspaces.",
  sizeof(uint32_t),
  0,
  parse_imgfmt,
  NULL,
  copy_opt,
  copy_opt,
  NULL,
  NULL
};

#include "libaf/af_format.h"

/* FIXME: snyc with af_format.h */
static struct {
  const char* name;
  unsigned int fmt;
} mp_afmt_list[] = {
  // SPECIAL
  {"mulaw", AF_FORMAT_MU_LAW},
  {"alaw", AF_FORMAT_A_LAW},
  {"mpeg2", AF_FORMAT_MPEG2},
  {"ac3le", AF_FORMAT_AC3_LE},
  {"ac3be", AF_FORMAT_AC3_BE},
  {"ac3ne", AF_FORMAT_AC3_NE},
  {"imaadpcm", AF_FORMAT_IMA_ADPCM},
  // ORIDNARY
  {"u8", AF_FORMAT_U8},
  {"s8", AF_FORMAT_S8},
  {"u16le", AF_FORMAT_U16_LE},
  {"u16be", AF_FORMAT_U16_BE},
  {"u16ne", AF_FORMAT_U16_NE},
  {"s16le", AF_FORMAT_S16_LE},
  {"s16be", AF_FORMAT_S16_BE},
  {"s16ne", AF_FORMAT_S16_NE},
  {"u24le", AF_FORMAT_U24_LE},
  {"u24be", AF_FORMAT_U24_BE},
  {"u24ne", AF_FORMAT_U24_NE},
  {"s24le", AF_FORMAT_S24_LE},
  {"s24be", AF_FORMAT_S24_BE},
  {"s24ne", AF_FORMAT_S24_NE},
  {"u32le", AF_FORMAT_U32_LE},
  {"u32be", AF_FORMAT_U32_BE},
  {"u32ne", AF_FORMAT_U32_NE},
  {"s32le", AF_FORMAT_S32_LE},
  {"s32be", AF_FORMAT_S32_BE},
  {"s32ne", AF_FORMAT_S32_NE},
  {"floatle", AF_FORMAT_FLOAT_LE},
  {"floatbe", AF_FORMAT_FLOAT_BE},
  {"floatne", AF_FORMAT_FLOAT_NE},
  { NULL, 0 }
};

static int parse_afmt(const m_option_t* opt,const char *name, const char *param, void* dst, int src) {
  uint32_t fmt = 0;
  int i;

  if (param == NULL || strlen(param) == 0)
    return M_OPT_MISSING_PARAM;

  if(!strcmp(param,"help")) {
    mp_msg(MSGT_CFGPARSER, MSGL_INFO, "Available formats:");
    for(i = 0 ; mp_afmt_list[i].name ; i++)
      mp_msg(MSGT_CFGPARSER, MSGL_INFO, " %s",mp_afmt_list[i].name);
    mp_msg(MSGT_CFGPARSER, MSGL_INFO, "\n");
    return M_OPT_EXIT - 1;
  }

  if (sscanf(param, "0x%x", &fmt) != 1)
  {
  for(i = 0 ; mp_afmt_list[i].name ; i++) {
    if(!strcasecmp(param,mp_afmt_list[i].name)) {
      fmt=mp_afmt_list[i].fmt;
      break;
    }
  }
  if(!mp_afmt_list[i].name) {
    mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: unknown format name: '%s'\n",name,param);
    return M_OPT_INVALID;
  }
  }

  if(dst)
    *((uint32_t*)dst) = fmt;

  return 1;
}

const m_option_type_t m_option_type_afmt = {
  "Audio format",
  "Please report any missing formats.",
  sizeof(uint32_t),
  0,
  parse_afmt,
  NULL,
  copy_opt,
  copy_opt,
  NULL,
  NULL
};


int parse_timestring(const char *str, double *time, char endchar)
{
  int a, b, len;
  double d;
  *time = 0; /* ensure initialization for error cases */
  if (sscanf(str, "%d:%d:%lf%n", &a, &b, &d, &len) >= 3)
    *time = 3600*a + 60*b + d;
  else if (sscanf(str, "%d:%lf%n", &a, &d, &len) >= 2)
    *time = 60*a + d;
  else if (sscanf(str, "%lf%n", &d, &len) >= 1)
    *time = d;
  else if (strncasecmp(str, "nopts", 5) == 0) {
    *time = MP_NOPTS_VALUE;
    len = 5;
  } else
    return 0; /* unsupported time format */
  if (str[len] && str[len] != endchar)
    return 0; /* invalid extra characters at the end */
  return len;
}


static int parse_time(const m_option_t* opt,const char *name, const char *param, void* dst, int src)
{
  double time;

  if (param == NULL || strlen(param) == 0)
    return M_OPT_MISSING_PARAM;

  if (!parse_timestring(param, &time, 0)) {
    mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: invalid time: '%s'\n",
           name,param);
    return M_OPT_INVALID;
  }

  if (dst)
    *(double *)dst = time;
  return 1;
}

const m_option_type_t m_option_type_time = {
  "Time",
  "",
  sizeof(double),
  0,
  parse_time,
  print_double,
  copy_opt,
  copy_opt,
  NULL,
  NULL
};


// Time or size (-endpos)

static int parse_time_size(const m_option_t* opt,const char *name, const char *param, void* dst, int src) {
  m_time_size_t ts;
  char unit[4];
  double end_at;

  if (param == NULL || strlen(param) == 0)
    return M_OPT_MISSING_PARAM;

  ts.pos=0;
  /* End at size parsing */
  if(sscanf(param, "%lf%3s", &end_at, unit) == 2) {
    ts.type = END_AT_SIZE;
    if(!strcasecmp(unit, "b"))
      ;
    else if(!strcasecmp(unit, "kb"))
      end_at *= 1024;
    else if(!strcasecmp(unit, "mb"))
      end_at *= 1024*1024;
    else if(!strcasecmp(unit, "gb"))
      end_at *= 1024*1024*1024;
    else
      ts.type = END_AT_NONE;

    if (ts.type == END_AT_SIZE) {
      ts.pos  = end_at;
      goto out;
    }
  }

  /* End at time parsing. This has to be last because the parsing accepts
   * even a number followed by garbage */
  if (!parse_timestring(param, &end_at, 0)) {
    mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: invalid time or size: '%s'\n",
           name,param);
    return M_OPT_INVALID;
  }

  ts.type = END_AT_TIME;
  ts.pos  = end_at;
out:
  if(dst)
    *(m_time_size_t *)dst = ts;
  return 1;
}

const m_option_type_t m_option_type_time_size = {
  "Time or size",
  "",
  sizeof(m_time_size_t),
  0,
  parse_time_size,
  NULL,
  copy_opt,
  copy_opt,
  NULL,
  NULL
};


//// Objects (i.e. filters, etc) settings

#include "m_struct.h"

#undef VAL
#define VAL(x) (*(m_obj_settings_t**)(x))

static int find_obj_desc(const char* name,const m_obj_list_t* l,const m_struct_t** ret) {
  int i;
  char* n;

  for(i = 0 ; l->list[i] ; i++) {
    n = M_ST_MB(char*,l->list[i],l->name_off);
    if(!strcmp(n,name)) {
      *ret = M_ST_MB(m_struct_t*,l->list[i],l->desc_off);
      return 1;
    }
  }
  return 0;
}

static int get_obj_param(const char* opt_name,const char* obj_name, const m_struct_t* desc,
			 char* str,int* nold,int oldmax,char** dst) {
  char* eq;
  const m_option_t* opt;
  int r;

  eq = strchr(str,'=');
  if(eq && eq == str)
    eq = NULL;

  if(eq) {
    char* p = eq + 1;
    if(p[0] == '\0') p = NULL;
    eq[0] = '\0';
    opt = m_option_list_find(desc->fields,str);
    if(!opt) {
      mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: %s doesn't have a %s parameter.\n",opt_name,obj_name,str);
      return M_OPT_UNKNOWN;
    }
    r = m_option_parse(opt,str,p,NULL,M_CONFIG_FILE);
    if(r < 0) {
      if(r > M_OPT_EXIT)
        mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: Error while parsing %s parameter %s (%s)\n",opt_name,obj_name,str,p);
      eq[0] = '=';
      return r;
    }
    if(dst) {
      dst[0] = strdup(str);
      dst[1] = p ? strdup(p) : NULL;
    }
    eq[0] = '=';
  } else {
    if((*nold) >= oldmax) {
      mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: %s has only %d params, so you can't give more than %d unnamed params.\n",
	     opt_name,obj_name,oldmax,oldmax);
      return M_OPT_OUT_OF_RANGE;
    }
    opt = &desc->fields[(*nold)];
    r = m_option_parse(opt,opt->name,str,NULL,M_CONFIG_FILE);
    if(r < 0) {
      if(r > M_OPT_EXIT)
        mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: Error while parsing %s parameter %s (%s)\n",opt_name,obj_name,opt->name,str);
      return r;
    }
    if(dst) {
      dst[0] = strdup(opt->name);
      dst[1] = strdup(str);
    }
    (*nold)++;
  }
  return 1;
}

static int get_obj_params(const char* opt_name, const char* name,char* params,
			  const m_struct_t* desc,char separator, char*** _ret) {
  int n = 0,nold = 0, nopts,r;
  char* ptr,*last_ptr = params;
  char** ret;

  if(!strcmp(params,"help")) { // Help
    char min[50],max[50];
    if(!desc->fields) {
      printf("%s doesn't have any options.\n\n",name);
      return M_OPT_EXIT - 1;
    }
    printf("\n Name                 Type            Min        Max\n\n");
    for(n = 0 ; desc->fields[n].name ; n++) {
      const m_option_t* opt = &desc->fields[n];
      if(opt->type->flags & M_OPT_TYPE_HAS_CHILD) continue;
      if(opt->flags & M_OPT_MIN)
	sprintf(min,"%-8.0f",opt->min);
      else
	strcpy(min,"No");
      if(opt->flags & M_OPT_MAX)
	sprintf(max,"%-8.0f",opt->max);
      else
	strcpy(max,"No");
      printf(" %-20.20s %-15.15s %-10.10s %-10.10s\n",
	     opt->name,
	     opt->type->name,
	     min,
	     max);
    }
    printf("\n");
    return M_OPT_EXIT - 1;
  }

  for(nopts = 0 ; desc->fields[nopts].name ; nopts++)
    /* NOP */;

  // TODO : Check that each opt can be parsed
  r = 1;
  while(last_ptr && last_ptr[0] != '\0') {
    ptr = strchr(last_ptr,separator);
    if(!ptr) {
      r = get_obj_param(opt_name,name,desc,last_ptr,&nold,nopts,NULL);
      n++;
      break;
    }
    if(ptr == last_ptr) { // Empty field, count it and go on
      nold++;
      last_ptr = ptr+1;
      continue;
    }
    ptr[0] = '\0';
    r = get_obj_param(opt_name,name,desc,last_ptr,&nold,nopts,NULL);
    ptr[0] = separator;
    if(r < 0) break;
    n++;
    last_ptr = ptr+1;
  }
  if(r < 0) return r;
  if (!last_ptr[0]) // count an empty field at the end, too
    nold++;
  if (nold > nopts) {
    mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Too many options for %s\n", name);
    return M_OPT_OUT_OF_RANGE;
  }
  if(!_ret) // Just test
    return 1;
  if (n == 0) // No options or only empty options
    return 1;

  ret = malloc((n+2)*2*sizeof(char*));
  n = nold = 0;
  last_ptr = params;

  while(last_ptr && last_ptr[0] != '\0') {
    ptr = strchr(last_ptr,separator);
    if(!ptr) {
      get_obj_param(opt_name,name,desc,last_ptr,&nold,nopts,&ret[n*2]);
      n++;
      break;
    }
    if(ptr == last_ptr) { // Empty field, count it and go on
      last_ptr = ptr+1;
      nold++;
      continue;
    }
    ptr[0] = '\0';
    get_obj_param(opt_name,name,desc,last_ptr,&nold,nopts,&ret[n*2]);
    n++;
    last_ptr = ptr+1;
  }
  ret[n*2] = ret[n*2+1] = NULL;
  *_ret = ret;

  return 1;
}

static int parse_obj_params(const m_option_t* opt,const char *name,
			    const char *param, void* dst, int src) {
  char** opts;
  int r;
  m_obj_params_t* p = opt->priv;
  const m_struct_t* desc;
  char* cpy;

  // We need the object desc
  if(!p)
    return M_OPT_INVALID;

  desc = p->desc;
  cpy = strdup(param);
  r = get_obj_params(name,desc->name,cpy,desc,p->separator,dst ? &opts : NULL);
  free(cpy);
  if(r < 0)
    return r;
  if(!dst)
    return 1;
  if (!opts) // no arguments given
    return 1;

  for(r = 0 ; opts[r] ; r += 2)
    m_struct_set(desc,dst,opts[r],opts[r+1]);

  return 1;
}


const m_option_type_t m_option_type_obj_params = {
  "Object params",
  "",
  0,
  0,
  parse_obj_params,
  NULL,
  NULL,
  NULL,
  NULL,
  NULL
};

/// Some predefined types as a definition would be quite lengthy

/// Span arguments
static const m_span_t m_span_params_dflts = { -1, -1 };
static const m_option_t m_span_params_fields[] = {
  {"start", M_ST_OFF(m_span_t,start), CONF_TYPE_INT, M_OPT_MIN, 1 ,0, NULL},
  {"end", M_ST_OFF(m_span_t,end), CONF_TYPE_INT, M_OPT_MIN , 1 ,0, NULL},
  { NULL, NULL, 0, 0, 0, 0,  NULL }
};
static const struct m_struct_st m_span_opts = {
  "m_span",
  sizeof(m_span_t),
  &m_span_params_dflts,
  m_span_params_fields
};
const m_obj_params_t m_span_params_def = {
  &m_span_opts,
  '-'
};

static int parse_obj_settings(const char* opt,char* str,const m_obj_list_t* list,
			      m_obj_settings_t **_ret, int ret_n) {
  int r;
  char *param,**plist = NULL;
  const m_struct_t* desc;
  m_obj_settings_t *ret = _ret ? *_ret : NULL;


  // Now check that the object exists
  param = strchr(str,'=');
  if(param) {
    param[0] = '\0';
    param++;
    if(strlen(param) <= 0)
      param = NULL;
  }


  if(!find_obj_desc(str,list,&desc)) {
    mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: %s doesn't exist.\n",opt,str);
    return M_OPT_INVALID;
  }

  if(param) {
    if(!desc && _ret) {
      if(!strcmp(param,"help")) {
        mp_msg(MSGT_CFGPARSER, MSGL_INFO, "Option %s: %s have no option description.\n",opt,str);
        return M_OPT_EXIT - 1;
      }
      plist = calloc(4,sizeof(char*));
      plist[0] = strdup("_oldargs_");
      plist[1] = strdup(param);
    } else if(desc) {
      r = get_obj_params(opt,str,param,desc,':',_ret ? &plist : NULL);
      if(r < 0)
	return r;
    }
  }
  if(!_ret)
    return 1;

  ret = realloc(ret,(ret_n+2)*sizeof(m_obj_settings_t));
  memset(&ret[ret_n],0,2*sizeof(m_obj_settings_t));
  ret[ret_n].name = strdup(str);
  ret[ret_n].attribs = plist;

  *_ret = ret;
  return 1;
}

static int obj_settings_list_del(const char *opt_name,const char *param,void* dst, int src) {
  char** str_list = NULL;
  int r,i,idx_max = 0;
  char* rem_id = "_removed_marker_";
  const m_option_t list_opt = {opt_name , NULL, CONF_TYPE_STRING_LIST,
			   0, 0, 0, NULL };
  m_obj_settings_t* obj_list = dst ? VAL(dst) : NULL;

  if(dst && !obj_list) {
    mp_msg(MSGT_CFGPARSER, MSGL_WARN, "Option %s: the list is empty.\n",opt_name);
    return 1;
  } else if(obj_list) {
    for(idx_max = 0 ; obj_list[idx_max].name != NULL ; idx_max++)
      /* NOP */;
  }

  r = m_option_parse(&list_opt,opt_name,param,&str_list,src);
  if(r < 0 || !str_list)
    return r;

  for(r = 0 ; str_list[r] ; r++) {
    int id;
    char* endptr;
    id = strtol(str_list[r],&endptr,0);
    if(endptr == str_list[r]) {
      mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: invalid parameter. We need a list of integers which are the indices of the elements to remove.\n",opt_name);
      m_option_free(&list_opt,&str_list);
      return M_OPT_INVALID;
    }
    if(!obj_list) continue;
    if(id >= idx_max || id < -idx_max) {
      mp_msg(MSGT_CFGPARSER, MSGL_WARN, "Option %s: Index %d is out of range.\n",opt_name,id);
      continue;
    }
    if(id < 0)
      id = idx_max + id;
    free(obj_list[id].name);
    free_str_list(&(obj_list[id].attribs));
    obj_list[id].name = rem_id;
  }

  if(!dst) {
    m_option_free(&list_opt,&str_list);
    return 1;
  }

  for(i = 0 ; obj_list[i].name ; i++) {
    while(obj_list[i].name == rem_id) {
      memmove(&obj_list[i],&obj_list[i+1],sizeof(m_obj_settings_t)*(idx_max - i));
      idx_max--;
    }
  }
  obj_list = realloc(obj_list,sizeof(m_obj_settings_t)*(idx_max+1));
  VAL(dst) = obj_list;

  return 1;
}

static void free_obj_settings_list(void* dst) {
  int n;
  m_obj_settings_t *d;

  if (!dst || !VAL(dst)) return;

  d = VAL(dst);
#ifndef NO_FREE
  for (n = 0 ; d[n].name ; n++) {
    free(d[n].name);
    free_str_list(&(d[n].attribs));
  }
  free(d);
#endif
  VAL(dst) = NULL;
}

static int parse_obj_settings_list(const m_option_t* opt,const char *name,
				   const char *param, void* dst, int src) {
  int n = 0,r,len = strlen(opt->name);
  char *str;
  char *ptr, *last_ptr;
  m_obj_settings_t *res = NULL,*queue = NULL,*head = NULL;
  int op = OP_NONE;

  // We need the objects list
  if(!opt->priv)
    return M_OPT_INVALID;

  if(opt->name[len-1] == '*' && ((int)strlen(name) > len - 1)) {
    const char* n = &name[len-1];
    if(strcasecmp(n,"-add") == 0)
      op = OP_ADD;
    else if(strcasecmp(n,"-pre") == 0)
      op = OP_PRE;
    else if(strcasecmp(n,"-del") == 0)
      op = OP_DEL;
    else if(strcasecmp(n,"-clr") == 0)
      op = OP_CLR;
    else {
      char prefix[len];
      strncpy(prefix,opt->name,len-1);
      prefix[len-1] = '\0';
      mp_msg(MSGT_VFILTER,MSGL_ERR, "Option %s: unknown postfix %s\n"
	     "Supported postfixes are:\n"
	     "  %s-add\n"
	     " Append the given list to the current list\n\n"
	     "  %s-pre\n"
	     " Prepend the given list to the current list\n\n"
	     "  %s-del x,y,...\n"
	     " Remove the given elements. Take the list element index (starting from 0).\n"
	     " Negative index can be used (i.e. -1 is the last element)\n\n"
	     "  %s-clr\n"
	     " Clear the current list.\n",name,n,prefix,prefix,prefix,prefix);

      return M_OPT_UNKNOWN;
    }
  }

  // Clear the list ??
  if(op == OP_CLR) {
    if(dst)
      free_obj_settings_list(dst);
    return 0;
  }

  if (param == NULL || strlen(param) == 0)
    return M_OPT_MISSING_PARAM;

  switch(op) {
  case OP_ADD:
    if(dst) head = VAL(dst);
    break;
  case OP_PRE:
    if(dst) queue = VAL(dst);
     break;
  case OP_DEL:
    return obj_settings_list_del(name,param,dst,src);
  case OP_NONE:
    if(dst && VAL(dst))
      free_obj_settings_list(dst);
    break;
  default:
    mp_msg(MSGT_VFILTER,MSGL_ERR, "Option %s: FIXME\n",name);
    return M_OPT_UNKNOWN;
  }

  if(!strcmp(param,"help")) {
    m_obj_list_t* ol = opt->priv;
    mp_msg(MSGT_VFILTER,MSGL_INFO,"Available video filters:\n");
    mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VIDEO_FILTERS\n");
    for(n = 0 ; ol->list[n] ; n++)
      mp_msg(MSGT_VFILTER,MSGL_INFO,"  %-15s: %s\n",
	     M_ST_MB(char*,ol->list[n],ol->name_off),
	     M_ST_MB(char*,ol->list[n],ol->info_off));
    mp_msg(MSGT_VFILTER,MSGL_INFO,"\n");
    return M_OPT_EXIT - 1;
  }
  ptr = str = strdup(param);

  while(ptr[0] != '\0') {
    last_ptr = ptr;
    ptr = get_nextsep(ptr, LIST_SEPARATOR, 1);

    if(!ptr) {
      r = parse_obj_settings(name,last_ptr,opt->priv,dst ? &res : NULL,n);
      if(r < 0) {
	free(str);
	return r;
      }
      n++;
      break;
    }
    ptr[0] = '\0';
    r = parse_obj_settings(name,last_ptr,opt->priv,dst ? &res : NULL,n);
    if(r < 0) {
      free(str);
      return r;
    }
    ptr++;
    n++;
  }
  free(str);
  if(n == 0)
    return M_OPT_INVALID;

  if( ((opt->flags & M_OPT_MIN) && (n < opt->min)) ||
      ((opt->flags & M_OPT_MAX) && (n > opt->max)) )
    return M_OPT_OUT_OF_RANGE;

  if(dst) {
    if(queue) {
      int qsize;
      for(qsize = 0 ; queue[qsize].name ; qsize++)
	/* NOP */;
      res = realloc(res,(qsize+n+1)*sizeof(m_obj_settings_t));
      memcpy(&res[n],queue,(qsize+1)*sizeof(m_obj_settings_t));
      n += qsize;
      free(queue);
    }
    if(head) {
      int hsize;
      for(hsize = 0 ; head[hsize].name ; hsize++)
	/* NOP */;
      head = realloc(head,(hsize+n+1)*sizeof(m_obj_settings_t));
      memcpy(&head[hsize],res,(n+1)*sizeof(m_obj_settings_t));
      free(res);
      res = head;
    }
    VAL(dst) = res;
  }
  return 1;
}

static void copy_obj_settings_list(const m_option_t* opt,void* dst, const void* src) {
  m_obj_settings_t *d,*s;
  int n;

  if(!(dst && src))
    return;

  s = VAL(src);

  if(VAL(dst))
    free_obj_settings_list(dst);
  if(!s) return;



  for(n = 0 ; s[n].name ; n++)
    /* NOP */;
  d = malloc((n+1)*sizeof(m_obj_settings_t));
  for(n = 0 ; s[n].name ; n++) {
    d[n].name = strdup(s[n].name);
    d[n].attribs = NULL;
    copy_str_list(NULL,&(d[n].attribs),&(s[n].attribs));
  }
  d[n].name = NULL;
  d[n].attribs = NULL;
  VAL(dst) = d;
}

const m_option_type_t m_option_type_obj_settings_list = {
  "Object settings list",
  "",
  sizeof(m_obj_settings_t*),
  M_OPT_TYPE_DYNAMIC|M_OPT_TYPE_ALLOW_WILDCARD,
  parse_obj_settings_list,
  NULL,
  copy_obj_settings_list,
  copy_obj_settings_list,
  copy_obj_settings_list,
  free_obj_settings_list,
};



static int parse_obj_presets(const m_option_t* opt,const char *name,
			    const char *param, void* dst, int src) {
  m_obj_presets_t* obj_p = (m_obj_presets_t*)opt->priv;
  const m_struct_t *in_desc,*out_desc;
  int s,i;
  const unsigned char* pre;
  char* pre_name = NULL;

  if(!obj_p) {
    mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: Presets need a pointer to a m_obj_presets_t in the priv field.\n",name);
    return M_OPT_PARSER_ERR;
  }

  if(!param)
    return M_OPT_MISSING_PARAM;

  pre = obj_p->presets;
  in_desc = obj_p->in_desc;
  out_desc = obj_p->out_desc ? obj_p->out_desc : obj_p->in_desc;
  s = in_desc->size;

  if(!strcmp(param,"help")) {
    mp_msg(MSGT_CFGPARSER, MSGL_INFO, "Available presets for %s->%s:",out_desc->name,name);
    for(pre = obj_p->presets;(pre_name = M_ST_MB(char*,pre,obj_p->name_off)) ;
	pre +=  s)
      mp_msg(MSGT_CFGPARSER, MSGL_ERR, " %s",pre_name);
    mp_msg(MSGT_CFGPARSER, MSGL_ERR, "\n");
    return M_OPT_EXIT - 1;
  }

  for(pre_name = M_ST_MB(char*,pre,obj_p->name_off) ; pre_name ;
      pre +=  s, pre_name = M_ST_MB(char*,pre,obj_p->name_off)) {
    if(!strcmp(pre_name,param)) break;
  }
  if(!pre_name) {
    mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: There is no preset named %s\n"
	   "Available presets are:",name,param);
    for(pre = obj_p->presets;(pre_name = M_ST_MB(char*,pre,obj_p->name_off)) ;
	pre +=  s)
      mp_msg(MSGT_CFGPARSER, MSGL_ERR, " %s",pre_name);
    mp_msg(MSGT_CFGPARSER, MSGL_ERR, "\n");
    return M_OPT_INVALID;
  }

  if(!dst) return 1;

  for(i = 0 ; in_desc->fields[i].name ; i++) {
    const m_option_t* out_opt = m_option_list_find(out_desc->fields,
					     in_desc->fields[i].name);
    if(!out_opt) {
      mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: Unable to find the target option for field %s.\nPlease report this to the developers.\n",name,in_desc->fields[i].name);
      return M_OPT_PARSER_ERR;
    }
    m_option_copy(out_opt,M_ST_MB_P(dst,out_opt->p),M_ST_MB_P(pre,in_desc->fields[i].p));
  }
  return 1;
}


const m_option_type_t m_option_type_obj_presets = {
  "Object presets",
  "",
  0,
  0,
  parse_obj_presets,
  NULL,
  NULL,
  NULL,
  NULL,
  NULL
};

static int parse_custom_url(const m_option_t* opt,const char *name,
			    const char *url, void* dst, int src) {
  int pos1, pos2, r, v6addr = 0;
  char *ptr1=NULL, *ptr2=NULL, *ptr3=NULL, *ptr4=NULL;
  m_struct_t* desc = opt->priv;

  if(!desc) {
    mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: Custom URL needs a pointer to a m_struct_t in the priv field.\n",name);
    return M_OPT_PARSER_ERR;
  }

  // extract the protocol
  ptr1 = strstr(url, "://");
  if( ptr1==NULL ) {
    // Filename only
    if(m_option_list_find(desc->fields,"filename")) {
      m_struct_set(desc,dst,"filename",url);
      return 1;
    }
    mp_msg(MSGT_CFGPARSER, MSGL_ERR,"Option %s: URL doesn't have a valid protocol!\n",name);
    return M_OPT_INVALID;
  }
  if(m_option_list_find(desc->fields,"string")) {
    if(strlen(ptr1)>3) {
      m_struct_set(desc,dst,"string",ptr1+3);
      return 1;
    }
  }
  pos1 = ptr1-url;
  if(dst && m_option_list_find(desc->fields,"protocol")) {
    ptr1[0] = '\0';
    r = m_struct_set(desc,dst,"protocol",url);
    ptr1[0] = ':';
    if(r < 0) {
      mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: Error while setting protocol.\n",name);
      return r;
    }
  }

  // jump the "://"
  ptr1 += 3;
  pos1 += 3;

  // check if a username:password is given
  ptr2 = strstr(ptr1, "@");
  ptr3 = strstr(ptr1, "/");
  if( ptr3!=NULL && ptr3<ptr2 ) {
    // it isn't really a username but rather a part of the path
    ptr2 = NULL;
  }
  if( ptr2!=NULL ) {

    // We got something, at least a username...
    if(!m_option_list_find(desc->fields,"username")) {
      mp_msg(MSGT_CFGPARSER, MSGL_WARN, "Option %s: This URL doesn't have a username part.\n",name);
      // skip
    } else {
      ptr3 = strstr(ptr1, ":");
      if( ptr3!=NULL && ptr3<ptr2 ) {
	// We also have a password
	if(!m_option_list_find(desc->fields,"password")) {
	  mp_msg(MSGT_CFGPARSER, MSGL_WARN, "Option %s: This URL doesn't have a password part.\n",name);
	  // skip
	} else { // Username and password
	  if(dst) {
	    ptr3[0] = '\0';
	    r = m_struct_set(desc,dst,"username",ptr1);
	    ptr3[0] = ':';
	    if(r < 0) {
	      mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: Error while setting username.\n",name);
	      return r;
	    }
	    ptr2[0] = '\0';
	    r = m_struct_set(desc,dst,"password",ptr3+1);
	    ptr2[0] = '@';
	    if(r < 0) {
	      mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: Error while setting password.\n",name);
	      return r;
	    }
	  }
	}
      } else { // User name only
	ptr2[0] = '\0';
	r = m_struct_set(desc,dst,"username",ptr1);
	ptr2[0] = '@';
	if(r < 0) {
	  mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: Error while setting username.\n",name);
	  return r;
	}
      }
    }
    ptr1 = ptr2+1;
    pos1 = ptr1-url;
  }

  // before looking for a port number check if we have an IPv6 type numeric address
  // in an IPv6 URL the numeric address should be inside square braces.
  ptr2 = strstr(ptr1, "[");
  ptr3 = strstr(ptr1, "]");
  // If the [] is after the first it isn't the hostname
  ptr4 = strstr(ptr1, "/");
  if( ptr2!=NULL && ptr3!=NULL && (ptr2 < ptr3) && (!ptr4 || ptr4 > ptr3)) {
    // we have an IPv6 numeric address
    ptr1++;
    pos1++;
    ptr2 = ptr3;
    v6addr = 1;
  } else {
    ptr2 = ptr1;
  }

  // look if the port is given
  ptr2 = strstr(ptr2, ":");
  // If the : is after the first / it isn't the port
  ptr3 = strstr(ptr1, "/");
  if(ptr3 && ptr3 - ptr2 < 0) ptr2 = NULL;
  if( ptr2==NULL ) {
    // No port is given
    // Look if a path is given
    if( ptr3==NULL ) {
      // No path/filename
      // So we have an URL like http://www.hostname.com
      pos2 = strlen(url);
    } else {
      // We have an URL like http://www.hostname.com/file.txt
      pos2 = ptr3-url;
    }
  } else {
    // We have an URL beginning like http://www.hostname.com:1212
    // Get the port number
    if(!m_option_list_find(desc->fields,"port")) {
      mp_msg(MSGT_CFGPARSER, MSGL_WARN, "Option %s: This URL doesn't have a port part.\n",name);
      // skip
    } else {
      if(dst) {
	int p = atoi(ptr2+1);
	char tmp[100];
	snprintf(tmp,99,"%d",p);
	r = m_struct_set(desc,dst,"port",tmp);
	if(r < 0) {
	  mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: Error while setting port.\n",name);
	  return r;
	}
      }
    }
    pos2 = ptr2-url;
  }
  if( v6addr ) pos2--;
  // Get the hostname
  if(pos2-pos1 > 0) {
    if(!m_option_list_find(desc->fields,"hostname")) {
      mp_msg(MSGT_CFGPARSER, MSGL_WARN, "Option %s: This URL doesn't have a hostname part.\n",name);
      // skip
    } else {
      char tmp[pos2-pos1+1];
      strncpy(tmp,ptr1, pos2-pos1);
      tmp[pos2-pos1] = '\0';
      r = m_struct_set(desc,dst,"hostname",tmp);
      if(r < 0) {
	mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: Error while setting hostname.\n",name);
	return r;
      }
    }
  }
  // Look if a path is given
  ptr2 = strstr(ptr1, "/");
  if( ptr2!=NULL ) {
    // A path/filename is given
    // check if it's not a trailing '/'
    if( strlen(ptr2)>1 ) {
      // copy the path/filename in the URL container
      if(!m_option_list_find(desc->fields,"filename")) {
	mp_msg(MSGT_CFGPARSER, MSGL_WARN, "Option %s: This URL doesn't have a hostname part.\n",name);
	// skip
      } else {
	if(dst) {
	  int l = strlen(ptr2+1) + 1;
	  char* fname = ptr2+1;
	  if(l > 1) {
	    fname = malloc(l);
	    url_unescape_string(fname,ptr2+1);
	  }
	  r = m_struct_set(desc,dst,"filename",fname);
	  if(fname != ptr2+1)
	    free(fname);
	  if(r < 0) {
	    mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s: Error while setting filename.\n",name);
	    return r;
	  }
	}
      }
    }
  }
  return 1;
}

/// TODO : Write the other needed funcs for 'normal' options
const m_option_type_t m_option_type_custom_url = {
  "Custom URL",
  "",
  0,
  0,
  parse_custom_url,
  NULL,
  NULL,
  NULL,
  NULL,
  NULL
};