Those functions get a value of the option with the given name from an object.
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int | av_opt_get (void *obj, const char *name, int search_flags, uint8_t **out_val) |
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int | av_opt_get_int (void *obj, const char *name, int search_flags, int64_t *out_val) |
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int | av_opt_get_double (void *obj, const char *name, int search_flags, double *out_val) |
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int | av_opt_get_q (void *obj, const char *name, int search_flags, AVRational *out_val) |
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int | av_opt_get_image_size (void *obj, const char *name, int search_flags, int *w_out, int *h_out) |
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int | av_opt_get_pixel_fmt (void *obj, const char *name, int search_flags, enum AVPixelFormat *out_fmt) |
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int | av_opt_get_sample_fmt (void *obj, const char *name, int search_flags, enum AVSampleFormat *out_fmt) |
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int | av_opt_get_video_rate (void *obj, const char *name, int search_flags, AVRational *out_val) |
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Those functions get a value of the option with the given name from an object.
- Parameters
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[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
int av_opt_get |
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void * |
obj, |
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const char * |
name, |
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int |
search_flags, |
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uint8_t ** |
out_val |
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int av_opt_get_int |
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void * |
obj, |
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const char * |
name, |
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int |
search_flags, |
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int64_t * |
out_val |
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) |
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int av_opt_get_double |
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void * |
obj, |
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const char * |
name, |
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int |
search_flags, |
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double * |
out_val |
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) |
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int av_opt_get_q |
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void * |
obj, |
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const char * |
name, |
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int |
search_flags, |
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AVRational * |
out_val |
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) |
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int av_opt_get_image_size |
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void * |
obj, |
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const char * |
name, |
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int |
search_flags, |
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int * |
w_out, |
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int * |
h_out |
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) |
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int av_opt_get_pixel_fmt |
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void * |
obj, |
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const char * |
name, |
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int |
search_flags, |
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enum AVPixelFormat * |
out_fmt |
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) |
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int av_opt_get_sample_fmt |
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void * |
obj, |
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const char * |
name, |
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int |
search_flags, |
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enum AVSampleFormat * |
out_fmt |
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) |
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int av_opt_get_video_rate |
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void * |
obj, |
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const char * |
name, |
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int |
search_flags, |
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AVRational * |
out_val |
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) |
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