Option getting functions
[AVOptions]

Those functions get a value of the option with the given name from an object. More...


Functions

int av_opt_get (void *obj, const char *name, int search_flags, uint8_t **out_val)
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, AVRational *out_val)


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,
uint8_t **  out_val 
)

Note:
the returned string will av_malloc()ed and must be av_free()ed by the caller

Definition at line 360 of file opt.c.

Referenced by ff_rtp_chain_mux_open(), and show_stream().

int av_opt_get_double ( void *  obj,
const char *  name,
int  search_flags,
double *  out_val 
)

Definition at line 476 of file opt.c.

int av_opt_get_int ( void *  obj,
const char *  name,
int  search_flags,
int64_t *  out_val 
)

Definition at line 464 of file opt.c.

Referenced by av_opt_flag_is_set(), ff_rtp_get_payload_type(), and new_output_stream().

int av_opt_get_q ( void *  obj,
const char *  name,
int  search_flags,
AVRational out_val 
)

Definition at line 488 of file opt.c.


Generated on Fri Oct 26 02:46:15 2012 for FFmpeg by  doxygen 1.5.8