228 #if FF_API_OLD_AVOPTIONS
274 #define AV_OPT_FLAG_ENCODING_PARAM 1
275 #define AV_OPT_FLAG_DECODING_PARAM 2
276 #define AV_OPT_FLAG_METADATA 4
277 #define AV_OPT_FLAG_AUDIO_PARAM 8
278 #define AV_OPT_FLAG_VIDEO_PARAM 16
279 #define AV_OPT_FLAG_SUBTITLE_PARAM 32
309 #if FF_API_OLD_AVOPTIONS
359 int av_opt_show2(
void *obj,
void *av_log_obj,
int req_flags,
int rej_flags);
368 #if FF_API_OLD_AVOPTIONS
390 const char *key_val_sep,
const char *pairs_sep);
447 #define AV_OPT_SEARCH_CHILDREN 0x0001
455 #define AV_OPT_SEARCH_FAKE_OBJ 0x0002
480 int opt_flags,
int search_flags);
504 int opt_flags,
int search_flags,
void **target_obj);
559 int av_opt_set (
void *obj,
const char *
name,
const char *val,
int search_flags);
582 int av_opt_get (
void *obj,
const char *
name,
int search_flags, uint8_t **out_val);
offset must point to a pointer immediately followed by an int for the length
int av_opt_eval_float(void *obj, const AVOption *o, const char *val, float *float_out)
attribute_deprecated const AVOption * av_set_int(void *obj, const char *name, int64_t n)
int av_opt_set_q(void *obj, const char *name, AVRational val, int search_flags)
void * av_opt_child_next(void *obj, void *prev)
Iterate over AVOptions-enabled children of obj.
const AVClass * av_opt_child_class_next(const AVClass *parent, const AVClass *prev)
Iterate over potential AVOptions-enabled children of parent.
void av_opt_set_defaults(void *s)
Set the values of all AVOption fields to their default values.
int av_set_options_string(void *ctx, const char *opts, const char *key_val_sep, const char *pairs_sep)
Parse the key/value pairs list in opts.
int av_opt_get_q(void *obj, const char *name, int search_flags, AVRational *out_val)
attribute_deprecated const char * av_get_string(void *obj, const char *name, const AVOption **o_out, char *buf, int buf_len)
const char * help
short English help text
attribute_deprecated const AVOption * av_next_option(void *obj, const AVOption *last)
attribute_deprecated const AVOption * av_set_double(void *obj, const char *name, double n)
int av_opt_eval_int64(void *obj, const AVOption *o, const char *val, int64_t *int64_out)
union AVOption::@97 default_val
the default value for scalar options
int av_opt_set_double(void *obj, const char *name, double val, int search_flags)
attribute_deprecated AVRational av_get_q(void *obj, const char *name, const AVOption **o_out)
static const uint16_t mask[17]
double max
maximum valid value for the option
int av_opt_eval_flags(void *obj, const AVOption *o, const char *val, int *flags_out)
const AVOption * av_opt_next(void *obj, const AVOption *prev)
Iterate over all AVOptions belonging to obj.
int av_opt_set_int(void *obj, const char *name, int64_t val, int search_flags)
const AVOption * av_opt_find(void *obj, const char *name, const char *unit, int opt_flags, int search_flags)
Look for an option in an object.
int av_opt_eval_double(void *obj, const AVOption *o, const char *val, double *double_out)
attribute_deprecated const AVOption * av_find_opt(void *obj, const char *name, const char *unit, int mask, int flags)
Look for an option in obj.
const char * unit
The logical unit to which the option belongs.
int av_opt_eval_q(void *obj, const AVOption *o, const char *val, AVRational *q_out)
double min
minimum valid value for the option
attribute_deprecated double av_get_double(void *obj, const char *name, const AVOption **o_out)
attribute_deprecated const AVOption * av_set_q(void *obj, const char *name, AVRational n)
offset must point to a pointer immediately followed by an int for the length
int av_opt_get_int(void *obj, const char *name, int search_flags, int64_t *out_val)
int offset
The offset relative to the context structure where the option value is stored.
int av_opt_set_dict(void *obj, struct AVDictionary **options)
int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags)
Show the obj options.
static const OptionDef options[]
attribute_deprecated int64_t av_get_int(void *obj, const char *name, const AVOption **o_out)
Describe the class of an AVClass context structure.
rational number numerator/denominator
int av_opt_eval_int(void *obj, const AVOption *o, const char *val, int *int_out)
#define attribute_deprecated
struct AVOption AVOption
AVOption.
void av_opt_free(void *obj)
Free all string and binary options in obj.
int av_opt_get_double(void *obj, const char *name, int search_flags, double *out_val)
attribute_deprecated int av_set_string3(void *obj, const char *name, const char *val, int alloc, const AVOption **o_out)
Set the field of obj with the given name to value.
int av_opt_get(void *obj, const char *name, int search_flags, uint8_t **out_val)
int av_opt_flag_is_set(void *obj, const char *field_name, const char *flag_name)
Check whether a particular flag is set in a flags field.
const AVOption * av_opt_find2(void *obj, const char *name, const char *unit, int opt_flags, int search_flags, void **target_obj)
Look for an option in an object.
attribute_deprecated void av_opt_set_defaults2(void *s, int mask, int flags)
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)