lavu/opt: cosmetics, group option setting function together
This commit is contained in:
Anton Khirnov
parent
cc0bd9da70
commit
2a3a33d04b
102
libavutil/opt.h
102
libavutil/opt.h
|
|
@ -576,6 +576,11 @@ enum {
|
|||
* @}
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup opt_write Setting and modifying option values
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* Parse the key/value pairs list in opts. For each key/value pair
|
||||
* found, stores the value in the field in ctx that is named like the
|
||||
|
|
@ -627,16 +632,6 @@ int av_opt_set_from_string(void *ctx, const char *opts,
|
|||
const char *const *shorthand,
|
||||
const char *key_val_sep, const char *pairs_sep);
|
||||
|
||||
/**
|
||||
* Check whether a particular flag is set in a flags field.
|
||||
*
|
||||
* @param field_name the name of the flag field option
|
||||
* @param flag_name the name of the flag to check
|
||||
* @return non-zero if the flag is set, zero if the flag isn't set,
|
||||
* isn't of the right type, or the flags field doesn't exist.
|
||||
*/
|
||||
int av_opt_flag_is_set(void *obj, const char *field_name, const char *flag_name);
|
||||
|
||||
/**
|
||||
* Set all the options from a given dictionary on an object.
|
||||
*
|
||||
|
|
@ -672,28 +667,23 @@ int av_opt_set_dict(void *obj, struct AVDictionary **options);
|
|||
int av_opt_set_dict2(void *obj, struct AVDictionary **options, int search_flags);
|
||||
|
||||
/**
|
||||
* @defgroup opt_eval_funcs Evaluating option strings
|
||||
* @{
|
||||
* This group of functions can be used to evaluate option strings
|
||||
* and get numbers out of them. They do the same thing as av_opt_set(),
|
||||
* except the result is written into the caller-supplied pointer.
|
||||
* Copy options from src object into dest object.
|
||||
*
|
||||
* @param obj a struct whose first element is a pointer to AVClass.
|
||||
* @param o an option for which the string is to be evaluated.
|
||||
* @param val string to be evaluated.
|
||||
* @param *_out value of the string will be written here.
|
||||
* The underlying AVClass of both src and dest must coincide. The guarantee
|
||||
* below does not apply if this is not fulfilled.
|
||||
*
|
||||
* @return 0 on success, a negative number on failure.
|
||||
*/
|
||||
int av_opt_eval_flags (void *obj, const AVOption *o, const char *val, int *flags_out);
|
||||
int av_opt_eval_int (void *obj, const AVOption *o, const char *val, int *int_out);
|
||||
int av_opt_eval_int64 (void *obj, const AVOption *o, const char *val, int64_t *int64_out);
|
||||
int av_opt_eval_float (void *obj, const AVOption *o, const char *val, float *float_out);
|
||||
int av_opt_eval_double(void *obj, const AVOption *o, const char *val, double *double_out);
|
||||
int av_opt_eval_q (void *obj, const AVOption *o, const char *val, AVRational *q_out);
|
||||
/**
|
||||
* @}
|
||||
* Options that require memory allocation (e.g. string or binary) are malloc'ed in dest object.
|
||||
* Original memory allocated for such options is freed unless both src and dest options points to the same memory.
|
||||
*
|
||||
* Even on error it is guaranteed that allocated options from src and dest
|
||||
* no longer alias each other afterwards; in particular calling av_opt_free()
|
||||
* on both src and dest is safe afterwards if dest has been memdup'ed from src.
|
||||
*
|
||||
* @param dest Object to copy from
|
||||
* @param src Object to copy into
|
||||
* @return 0 on success, negative on error
|
||||
*/
|
||||
int av_opt_copy(void *dest, const void *src);
|
||||
|
||||
/**
|
||||
* @defgroup opt_set_funcs Option setting functions
|
||||
|
|
@ -761,6 +751,7 @@ int av_opt_set_dict_val(void *obj, const char *name, const AVDictionary *val, in
|
|||
av_int_list_length(val, term) * sizeof(*(val)), flags))
|
||||
|
||||
/**
|
||||
* @}
|
||||
* @}
|
||||
*/
|
||||
|
||||
|
|
@ -805,6 +796,31 @@ int av_opt_get_dict_val(void *obj, const char *name, int search_flags, AVDiction
|
|||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup opt_eval_funcs Evaluating option strings
|
||||
* @{
|
||||
* This group of functions can be used to evaluate option strings
|
||||
* and get numbers out of them. They do the same thing as av_opt_set(),
|
||||
* except the result is written into the caller-supplied pointer.
|
||||
*
|
||||
* @param obj a struct whose first element is a pointer to AVClass.
|
||||
* @param o an option for which the string is to be evaluated.
|
||||
* @param val string to be evaluated.
|
||||
* @param *_out value of the string will be written here.
|
||||
*
|
||||
* @return 0 on success, a negative number on failure.
|
||||
*/
|
||||
int av_opt_eval_flags (void *obj, const AVOption *o, const char *val, int *flags_out);
|
||||
int av_opt_eval_int (void *obj, const AVOption *o, const char *val, int *int_out);
|
||||
int av_opt_eval_int64 (void *obj, const AVOption *o, const char *val, int64_t *int64_out);
|
||||
int av_opt_eval_float (void *obj, const AVOption *o, const char *val, float *float_out);
|
||||
int av_opt_eval_double(void *obj, const AVOption *o, const char *val, double *double_out);
|
||||
int av_opt_eval_q (void *obj, const AVOption *o, const char *val, AVRational *q_out);
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/**
|
||||
* Gets a pointer to the requested field in a struct.
|
||||
* This function allows accessing a struct even when its fields are moved or
|
||||
|
|
@ -835,25 +851,6 @@ void av_opt_freep_ranges(AVOptionRanges **ranges);
|
|||
*/
|
||||
int av_opt_query_ranges(AVOptionRanges **, void *obj, const char *key, int flags);
|
||||
|
||||
/**
|
||||
* Copy options from src object into dest object.
|
||||
*
|
||||
* The underlying AVClass of both src and dest must coincide. The guarantee
|
||||
* below does not apply if this is not fulfilled.
|
||||
*
|
||||
* Options that require memory allocation (e.g. string or binary) are malloc'ed in dest object.
|
||||
* Original memory allocated for such options is freed unless both src and dest options points to the same memory.
|
||||
*
|
||||
* Even on error it is guaranteed that allocated options from src and dest
|
||||
* no longer alias each other afterwards; in particular calling av_opt_free()
|
||||
* on both src and dest is safe afterwards if dest has been memdup'ed from src.
|
||||
*
|
||||
* @param dest Object to copy from
|
||||
* @param src Object to copy into
|
||||
* @return 0 on success, negative on error
|
||||
*/
|
||||
int av_opt_copy(void *dest, const void *src);
|
||||
|
||||
/**
|
||||
* Get a default list of allowed ranges for the given option.
|
||||
*
|
||||
|
|
@ -896,6 +893,15 @@ int av_opt_is_set_to_default(void *obj, const AVOption *o);
|
|||
*/
|
||||
int av_opt_is_set_to_default_by_name(void *obj, const char *name, int search_flags);
|
||||
|
||||
/**
|
||||
* Check whether a particular flag is set in a flags field.
|
||||
*
|
||||
* @param field_name the name of the flag field option
|
||||
* @param flag_name the name of the flag to check
|
||||
* @return non-zero if the flag is set, zero if the flag isn't set,
|
||||
* isn't of the right type, or the flags field doesn't exist.
|
||||
*/
|
||||
int av_opt_flag_is_set(void *obj, const char *field_name, const char *flag_name);
|
||||
|
||||
#define AV_OPT_SERIALIZE_SKIP_DEFAULTS 0x00000001 ///< Serialize options that are not set to default values only.
|
||||
#define AV_OPT_SERIALIZE_OPT_FLAGS_EXACT 0x00000002 ///< Serialize options that exactly match opt_flags only.
|
||||
|
|
|
|||
Loading…
Reference in New Issue