Update meta data for a stream
#include <roaraudio.h>
int roar_vs_meta (roar_vs_t * vss, struct roar_keyval * kv, size_t len, int * error);
This function updates meta data of the stream. This should be done before any read or write operation and can be used at any time to update the meta data.
vss
The VS object to be updated.
kv
An array of meta data elements.
len
Length of array kv.
error
This is a pointer to a integer used to store the error value in case of error. This can be NULL if not used but it is very recommended to use this error value to report good error messages to the user.
On success these calls return 0. On error, -1 is returned.
struct roar_keyval kv[2] = {
{.key = "TITLE", .value = "Some title"},
{.key = "ARTIST", .value = "Some artist"}
}; ret = roar_vs_meta(vss, &kv, 2, &err);