/builddir/build/BUILD/alsa-lib-1.0.22/src/pcm/pcm_hooks.c File Reference
PCM Hook Interface.
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Functions |
int | snd_pcm_hooks_open (snd_pcm_t **pcmp, const char *name, snd_pcm_t *slave, int close_slave) |
| Creates a new hooks PCM.
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int | _snd_pcm_hooks_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode) |
| Creates a new hooks PCM.
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snd_pcm_t * | snd_pcm_hook_get_pcm (snd_pcm_hook_t *hook) |
| Get PCM handle for a PCM hook.
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void * | snd_pcm_hook_get_private (snd_pcm_hook_t *hook) |
| Get callback function private data for a PCM hook.
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void | snd_pcm_hook_set_private (snd_pcm_hook_t *hook, void *private_data) |
| Set callback function private data for a PCM hook.
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int | snd_pcm_hook_add (snd_pcm_hook_t **hookp, snd_pcm_t *pcm, snd_pcm_hook_type_t type, snd_pcm_hook_func_t func, void *private_data) |
| Add a PCM hook at end of hooks chain.
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int | snd_pcm_hook_remove (snd_pcm_hook_t *hook) |
| Remove a PCM hook.
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int | _snd_pcm_hook_ctl_elems_install (snd_pcm_t *pcm, snd_config_t *conf) |
| Install CTL settings using hardware associated with PCM handle.
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Detailed Description
PCM Hook Interface.
- Author:
- Abramo Bagnara <abramo@alsa-project.org>
-
Jaroslav Kysela <perex@perex.cz>
- Date:
- 2000-2001
Function Documentation
Install CTL settings using hardware associated with PCM handle.
- Parameters:
-
| pcm | PCM handle |
| conf | Configuration node with CTL settings |
- Returns:
- zero on success otherwise a negative error code
Creates a new hooks PCM.
- Parameters:
-
| pcmp | Returns created PCM handle |
| name | Name of PCM |
| root | Root configuration node |
| conf | Configuration node with hooks PCM description |
| stream | PCM Stream |
| mode | PCM Mode |
- Return values:
-
| zero | on success otherwise a negative error code |
- Warning:
- Using of this function might be dangerous in the sense of compatibility reasons. The prototype might be freely changed in future.
int snd_pcm_hooks_open |
( |
snd_pcm_t ** |
pcmp, |
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|
const char * |
name, |
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|
snd_pcm_t * |
slave, |
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int |
close_slave | |
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) |
| | |
Creates a new hooks PCM.
- Parameters:
-
| pcmp | Returns created PCM handle |
| name | Name of PCM |
| slave | Slave PCM |
| close_slave | If set, slave PCM handle is closed when hooks PCM is closed |
- Return values:
-
| zero | on success otherwise a negative error code |
- Warning:
- Using of this function might be dangerous in the sense of compatibility reasons. The prototype might be freely changed in future.