mirror of
https://github.com/alsa-project/alsa-lib.git
synced 2025-12-16 08:56:42 -05:00
a7f3ff4a4f
1. No more needs to call snd_seq_event_free() for releasing the cell. But you should keep it anyway, both for compatibility and for future extension. 2. API is basically kept unmodified. The sign of return values are same, i.e. positive integers will be returned if events exist on buffer/queue. But the exact value may be different from the older version. 3. snd_seq_event_input() renders the event directly from the static input buffer. The function is not re-entrant. 4. snd_seq_event_input_selective() is removed.
87 lines
4.8 KiB
C
87 lines
4.8 KiB
C
/****************************************************************************
|
|
* *
|
|
* seq.h *
|
|
* Sequencer *
|
|
* *
|
|
****************************************************************************/
|
|
|
|
#define SND_SEQ_OPEN_OUT (O_WRONLY)
|
|
#define SND_SEQ_OPEN_IN (O_RDONLY)
|
|
#define SND_SEQ_OPEN (O_RDWR)
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
typedef struct snd_seq snd_seq_t;
|
|
|
|
int snd_seq_open(snd_seq_t **handle, int mode);
|
|
int snd_seq_close(snd_seq_t *handle);
|
|
int snd_seq_file_descriptor(snd_seq_t *handle);
|
|
int snd_seq_block_mode(snd_seq_t *handle, int enable);
|
|
int snd_seq_client_id(snd_seq_t *handle);
|
|
int snd_seq_output_buffer_size(snd_seq_t *handle);
|
|
int snd_seq_input_buffer_size(snd_seq_t *handle);
|
|
int snd_seq_resize_output_buffer(snd_seq_t *handle, size_t size);
|
|
int snd_seq_resize_input_buffer(snd_seq_t *handle, size_t size);
|
|
int snd_seq_system_info(snd_seq_t *handle, snd_seq_system_info_t *info);
|
|
int snd_seq_get_client_info(snd_seq_t *handle, snd_seq_client_info_t *info);
|
|
int snd_seq_get_any_client_info(snd_seq_t *handle, int client, snd_seq_client_info_t *info);
|
|
int snd_seq_set_client_info(snd_seq_t *handle, snd_seq_client_info_t *info);
|
|
int snd_seq_create_port(snd_seq_t *handle, snd_seq_port_info_t *info);
|
|
int snd_seq_delete_port(snd_seq_t *handle, snd_seq_port_info_t *info);
|
|
int snd_seq_get_port_info(snd_seq_t *handle, int port, snd_seq_port_info_t *info);
|
|
int snd_seq_get_any_port_info(snd_seq_t *handle, int client, int port, snd_seq_port_info_t *info);
|
|
int snd_seq_set_port_info(snd_seq_t *handle, int port, snd_seq_port_info_t *info);
|
|
int snd_seq_get_port_subscription(snd_seq_t *handle, snd_seq_port_subscribe_t *sub);
|
|
int snd_seq_subscribe_port(snd_seq_t *handle, snd_seq_port_subscribe_t *sub);
|
|
int snd_seq_unsubscribe_port(snd_seq_t *handle, snd_seq_port_subscribe_t *sub);
|
|
int snd_seq_query_port_subscribers(snd_seq_t *seq, snd_seq_query_subs_t * subs);
|
|
int snd_seq_get_queue_status(snd_seq_t *handle, int q, snd_seq_queue_status_t *status);
|
|
int snd_seq_get_queue_tempo(snd_seq_t *handle, int q, snd_seq_queue_tempo_t *tempo);
|
|
int snd_seq_set_queue_tempo(snd_seq_t *handle, int q, snd_seq_queue_tempo_t *tempo);
|
|
int snd_seq_get_queue_owner(snd_seq_t *handle, int q, snd_seq_queue_owner_t *owner);
|
|
int snd_seq_set_queue_owner(snd_seq_t *handle, int q, snd_seq_queue_owner_t *owner);
|
|
int snd_seq_get_queue_timer(snd_seq_t *handle, int q, snd_seq_queue_timer_t *timer);
|
|
int snd_seq_set_queue_timer(snd_seq_t *handle, int q, snd_seq_queue_timer_t *timer);
|
|
int snd_seq_get_queue_client(snd_seq_t *handle, int q, snd_seq_queue_client_t *queue);
|
|
int snd_seq_set_queue_client(snd_seq_t *handle, int q, snd_seq_queue_client_t *queue);
|
|
int snd_seq_create_queue(snd_seq_t *seq, snd_seq_queue_info_t *info);
|
|
int snd_seq_alloc_named_queue(snd_seq_t *seq, char *name);
|
|
int snd_seq_alloc_queue(snd_seq_t *handle);
|
|
int snd_seq_free_queue(snd_seq_t *handle, int q);
|
|
int snd_seq_get_queue_info(snd_seq_t *seq, int q, snd_seq_queue_info_t *info);
|
|
int snd_seq_set_queue_info(snd_seq_t *seq, int q, snd_seq_queue_info_t *info);
|
|
int snd_seq_get_named_queue(snd_seq_t *seq, char *name);
|
|
int snd_seq_get_client_pool(snd_seq_t *handle, snd_seq_client_pool_t * info);
|
|
int snd_seq_set_client_pool(snd_seq_t *handle, snd_seq_client_pool_t * info);
|
|
int snd_seq_query_next_client(snd_seq_t *handle, snd_seq_client_info_t * info);
|
|
int snd_seq_query_next_port(snd_seq_t *handle, snd_seq_port_info_t * info);
|
|
|
|
/* event routines */
|
|
snd_seq_event_t *snd_seq_create_event(void);
|
|
int snd_seq_free_event(snd_seq_event_t *ev);
|
|
ssize_t snd_seq_event_length(snd_seq_event_t *ev);
|
|
int snd_seq_event_output(snd_seq_t *handle, snd_seq_event_t *ev);
|
|
int snd_seq_event_output(snd_seq_t *handle, snd_seq_event_t *ev);
|
|
int snd_seq_event_output_buffer(snd_seq_t *handle, snd_seq_event_t *ev);
|
|
int snd_seq_event_output_direct(snd_seq_t *handle, snd_seq_event_t *ev);
|
|
int snd_seq_event_input(snd_seq_t *handle, snd_seq_event_t **ev);
|
|
int snd_seq_event_input_pending(snd_seq_t *seq, int fetch_sequencer);
|
|
int snd_seq_flush_output(snd_seq_t *handle);
|
|
int snd_seq_event_output_pending(snd_seq_t *seq);
|
|
int snd_seq_extract_output(snd_seq_t *handle, snd_seq_event_t **ev);
|
|
int snd_seq_drain_output(snd_seq_t *handle);
|
|
int snd_seq_drain_output_buffer(snd_seq_t *handle);
|
|
int snd_seq_drain_input(snd_seq_t *handle);
|
|
int snd_seq_drain_input_buffer(snd_seq_t *handle);
|
|
int snd_seq_remove_events(snd_seq_t *handle, snd_seq_remove_events_t *info);
|
|
/* misc */
|
|
void snd_seq_set_bit(int nr, void *array);
|
|
int snd_seq_change_bit(int nr, void *array);
|
|
int snd_seq_get_bit(int nr, void *array);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|