snd_mixer_elements_t
Information about all elements in a mixer
Synopsis:
typedef struct snd_mixer_elements_s { int32_t elements, elements_size, elements_over; uint8_t zero[4]; /* alignment -- zero fill */ snd_mixer_eid_t *pelements; void *pzero; /* align pointers on 64-bits; point to NULL */ uint8_t reserved[128]; /* must be filled with zeroes */ } snd_mixer_elements_t;
Description:
The snd_mixer_elements_t structure describes all the elements in a mixer. You can fill in this structure by calling snd_mixer_elements() .
We recommend that you work with mixer groups instead of manipulating the
elements directly.
The members of the snd_mixer_elements_t structure include:
- elements
- The total number of elements in the mixer.
- elements_size
- The size of the pelements storage location, in sizeof( snd_mixer_eid_t ) units (i.e. the number of entries in the pelements array). Set this element before calling snd_mixer_elements().
- elements_over
- The number of elements that couldn't be copied to the storage location.
- pelements
-
NULL, or a pointer to an array of
snd_mixer_eid_t
structures.
If pelements isn't NULL, snd_mixer_elements() stores the mixer element IDs in the array.
Classification:
QNX Neutrino