Collaboration diagram for Subformat Mask Functions:
Macros | |
| #define | snd_pcm_subformat_mask_alloca(ptr) |
| allocate an empty snd_pcm_subformat_mask_t using standard alloca More... | |
Detailed Description
See the PCM (digital audio) interface page for more details.
Macro Definition Documentation
◆ snd_pcm_subformat_mask_alloca
| #define snd_pcm_subformat_mask_alloca | ( | ptr | ) |
allocate an empty snd_pcm_subformat_mask_t using standard alloca
- Parameters
-
ptr returned pointer
Function Documentation
◆ snd_pcm_subformat_mask_any()
| void snd_pcm_subformat_mask_any | ( | snd_pcm_subformat_mask_t * | mask | ) |
set all bits in a snd_pcm_subformat_mask_t
- Parameters
-
mask pointer to mask
◆ snd_pcm_subformat_mask_copy()
| void snd_pcm_subformat_mask_copy | ( | snd_pcm_subformat_mask_t * | dst, |
| const snd_pcm_subformat_mask_t * | src | ||
| ) |
copy one snd_pcm_subformat_mask_t to another
- Parameters
-
dst pointer to destination src pointer to source
◆ snd_pcm_subformat_mask_empty()
| int snd_pcm_subformat_mask_empty | ( | const snd_pcm_subformat_mask_t * | mask | ) |
test, if given a snd_pcm_subformat_mask_t is empty
- Parameters
-
mask pointer to mask
- Return values
-
0 not empty 1 empty
◆ snd_pcm_subformat_mask_free()
| void snd_pcm_subformat_mask_free | ( | snd_pcm_subformat_mask_t * | obj | ) |
frees a previously allocated snd_pcm_subformat_mask_t
- Parameters
-
obj pointer to object to free
◆ snd_pcm_subformat_mask_malloc()
| int snd_pcm_subformat_mask_malloc | ( | snd_pcm_subformat_mask_t ** | ptr | ) |
allocate an empty snd_pcm_subformat_mask_t using standard malloc
- Parameters
-
ptr returned pointer
- Returns
- 0 on success otherwise negative error code
◆ snd_pcm_subformat_mask_none()
| void snd_pcm_subformat_mask_none | ( | snd_pcm_subformat_mask_t * | mask | ) |
reset all bits in a snd_pcm_subformat_mask_t
- Parameters
-
mask pointer to mask
◆ snd_pcm_subformat_mask_reset()
| void snd_pcm_subformat_mask_reset | ( | snd_pcm_subformat_mask_t * | mask, |
| snd_pcm_subformat_t | val | ||
| ) |
make a subformat missing from a snd_pcm_subformat_mask_t
- Parameters
-
mask pointer to mask val subformat
◆ snd_pcm_subformat_mask_set()
| void snd_pcm_subformat_mask_set | ( | snd_pcm_subformat_mask_t * | mask, |
| snd_pcm_subformat_t | val | ||
| ) |
make a subformat present in a snd_pcm_subformat_mask_t
- Parameters
-
mask pointer to mask val subformat
◆ snd_pcm_subformat_mask_sizeof()
| size_t snd_pcm_subformat_mask_sizeof | ( | void | ) |
get size of snd_pcm_subformat_mask_t
- Returns
- size in bytes
◆ snd_pcm_subformat_mask_test()
| int snd_pcm_subformat_mask_test | ( | const snd_pcm_subformat_mask_t * | mask, |
| snd_pcm_subformat_t | val | ||
| ) |
test the presence of a subformat in a snd_pcm_subformat_mask_t
- Parameters
-
mask pointer to mask val subformat
