31 #if !defined(__ALSA_PCM_EXTERNAL_H) && !defined(ALSA_LIBRARY_BUILD) 32 #warning "use #include <alsa/pcm_external.h>, <alsa/pcm_extplug.h> should not be used directly" 33 #include <alsa/pcm_external.h> 36 #ifndef __ALSA_PCM_EXTPLUG_H 37 #define __ALSA_PCM_EXTPLUG_H 48 SND_PCM_EXTPLUG_HW_FORMAT,
49 SND_PCM_EXTPLUG_HW_CHANNELS,
50 SND_PCM_EXTPLUG_HW_PARAMS
54 typedef struct snd_pcm_extplug snd_pcm_extplug_t;
56 typedef struct snd_pcm_extplug_callback snd_pcm_extplug_callback_t;
59 typedef snd_pcm_extplug snd_pcm_extplug_t;
60 typedef snd_pcm_extplug_callback snd_pcm_extplug_callback_t;
66 #define SND_PCM_EXTPLUG_VERSION_MAJOR 1 67 #define SND_PCM_EXTPLUG_VERSION_MINOR 0 68 #define SND_PCM_EXTPLUG_VERSION_TINY 2 72 #define SND_PCM_EXTPLUG_VERSION ((SND_PCM_EXTPLUG_VERSION_MAJOR<<16) |\ 73 (SND_PCM_EXTPLUG_VERSION_MINOR<<8) |\ 74 (SND_PCM_EXTPLUG_VERSION_TINY)) 77 struct snd_pcm_extplug {
90 const snd_pcm_extplug_callback_t *callback;
114 unsigned int channels;
130 unsigned int slave_channels;
134 struct snd_pcm_extplug_callback {
147 int (*close)(snd_pcm_extplug_t *ext);
155 int (*hw_free)(snd_pcm_extplug_t *ext);
159 void (*dump)(snd_pcm_extplug_t *ext,
snd_output_t *out);
163 int (*init)(snd_pcm_extplug_t *ext);
198 static __inline__
int snd_pcm_extplug_set_param(snd_pcm_extplug_t *extplug,
int type,
unsigned int val)
206 static __inline__
int snd_pcm_extplug_set_slave_param(snd_pcm_extplug_t *extplug,
int type,
unsigned int val)
uint8_t type
Definition: ump_msg.h:183
snd_pcm_subformat_t
Definition: pcm.h:288
struct _snd_pcm_hw_params snd_pcm_hw_params_t
Definition: pcm.h:68
int snd_pcm_extplug_set_param_minmax(snd_pcm_extplug_t *extplug, int type, unsigned int min, unsigned int max)
Set master parameter as the min/max values.
Definition: pcm_extplug.c:850
struct _snd_config snd_config_t
Internal structure for a configuration node object.
Definition: conf.h:74
snd_pcm_format_t
Definition: pcm.h:129
long snd_pcm_sframes_t
Definition: pcm.h:402
struct _snd_output snd_output_t
Internal structure for an output object.
Definition: output.h:60
int snd_pcm_extplug_set_slave_param_list(snd_pcm_extplug_t *extplug, int type, unsigned int num_list, const unsigned int *list)
Set slave parameter as the list.
Definition: pcm_extplug.c:780
uint16_t format
Definition: ump_msg.h:184
int snd_pcm_extplug_create(snd_pcm_extplug_t *extplug, const char *name, snd_config_t *root, snd_config_t *slave_conf, snd_pcm_stream_t stream, int mode)
Create an extplug instance.
Definition: pcm_extplug.c:676
void snd_pcm_extplug_params_reset(snd_pcm_extplug_t *extplug)
Reset extplug parameters.
Definition: pcm_extplug.c:762
int snd_pcm_extplug_delete(snd_pcm_extplug_t *extplug)
Delete the extplug instance.
Definition: pcm_extplug.c:750
int snd_pcm_extplug_set_param_link(snd_pcm_extplug_t *extplug, int type, int keep_link)
Keep the client and slave format/channels the same if requested. This is for example useful if this e...
Definition: pcm_extplug.c:874
unsigned long snd_pcm_uframes_t
Definition: pcm.h:400
int snd_pcm_extplug_set_param_list(snd_pcm_extplug_t *extplug, int type, unsigned int num_list, const unsigned int *list)
Set master parameter as the list.
Definition: pcm_extplug.c:828
snd_pcm_stream_t
Definition: pcm.h:105
int snd_pcm_extplug_set_slave_param_minmax(snd_pcm_extplug_t *extplug, int type, unsigned int min, unsigned int max)
Set slave parameter as the min/max values.
Definition: pcm_extplug.c:802
struct _snd_pcm snd_pcm_t
Definition: pcm.h:422