/**

 * AVOption.

 */

typedef struct AVOption {

    /** options' name */

    const char *name; /* if name is NULL, it indicates a link to next */

    /** short English text help or const struct AVOption* subpointer */

    const char *help; //	const struct AVOption* sub;

    /** offset to context structure where the parsed value should be stored */

    int offset;

    /** options' type */

    int type;

#define FF_OPT_TYPE_BOOL 1      ///< boolean - true,1,on  (or simply presence)

#define FF_OPT_TYPE_DOUBLE 2    ///< double

#define FF_OPT_TYPE_INT 3       ///< integer

#define FF_OPT_TYPE_STRING 4    ///< string (finished with \0)

#define FF_OPT_TYPE_MASK 0x1f	///< mask for types - upper bits are various flags

//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option

#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)

#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)

    /** min value  (min == max   ->  no limits) */

    double min;

    /** maximum value for double/int */

    double max;

    /** default boo [0,1]l/double/int value */

    double defval;

    /**

     * default string value (with optional semicolon delimited extra option-list

     * i.e.   option1;option2;option3

     * defval might select other then first argument as default

     */

    const char *defstr;

#define FF_OPT_MAX_DEPTH 10

} AVOption;