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Add filter-type external plugin SDK

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Added the SDK for filter-type PCM plugins.
Share some codes with ioplug.
This commit is contained in:
Takashi Iwai 2005-02-14 13:33:08 +00:00
parent 4ea51d8201
commit 5eb794fe0b
9 changed files with 672 additions and 137 deletions
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27
src/pcm/pcm_ext_parm.h Normal file
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/* hw_params */
struct snd_ext_parm {
unsigned int min, max;
unsigned int num_list;
unsigned int *list;
unsigned int active: 1;
unsigned int integer: 1;
};
static inline snd_mask_t *hw_param_mask(snd_pcm_hw_params_t *params,
snd_pcm_hw_param_t var)
{
return &params->masks[var - SND_PCM_HW_PARAM_FIRST_MASK];
}
static inline snd_interval_t *hw_param_interval(snd_pcm_hw_params_t *params,
snd_pcm_hw_param_t var)
{
return &params->intervals[var - SND_PCM_HW_PARAM_FIRST_INTERVAL];
}
int snd_ext_parm_set_minmax(struct snd_ext_parm *parm, unsigned int min, unsigned int max);
int snd_ext_parm_set_list(struct snd_ext_parm *parm, unsigned int num_list, const unsigned int *list);
void snd_ext_parm_clear(struct snd_ext_parm *parm);
int snd_interval_list(snd_interval_t *ival, int num_list, unsigned int *list);
int snd_ext_parm_interval_refine(snd_interval_t *ival, struct snd_ext_parm *parm, int type);
int snd_ext_parm_mask_refine(snd_mask_t *mask, struct snd_ext_parm *parm, int type);