Those functions get a value of the option with the given name from an object.
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Functions
Detailed Description
Those functions get a value of the option with the given name from an object.
- Parameters
-
[in] obj a struct whose first element is a pointer to an
AVClass.
[in] name name of the option to get.
[in] search_flags flags passed to av_opt_find2. I.e. if AV_OPT_SEARCH_CHILDREN is passed here, then the option may be found in a child of obj.
[out] out_val value of the option will be written here
- Returns
- 0 on success, a negative error code otherwise
Function Documentation
int av_opt_get
(
void *
obj,
const char *
name,
int
search_flags,
)
int av_opt_get_int
(
void *
obj,
const char *
name,
int
search_flags,
int64_t *
out_val
)
int av_opt_get_double
(
void *
obj,
const char *
name,
int
search_flags,
double *
out_val
)
int av_opt_get_q
(
void *
obj,
const char *
name,
int
search_flags,
)
int av_opt_get_image_size
(
void *
obj,
const char *
name,
int
search_flags,
int *
w_out,
int *
h_out
)
int av_opt_get_pixel_fmt
(
void *
obj,
const char *
name,
int
search_flags,
)
int av_opt_get_sample_fmt
(
void *
obj,
const char *
name,
int
search_flags,
)
int av_opt_get_video_rate
(
void *
obj,
const char *
name,
int
search_flags,
)