diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/tinyalsa/asoundlib.h | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/include/tinyalsa/asoundlib.h b/include/tinyalsa/asoundlib.h index f578c4d..e9861e3 100644 --- a/include/tinyalsa/asoundlib.h +++ b/include/tinyalsa/asoundlib.h @@ -55,15 +55,12 @@ struct pcm; * second call to pcm_write will attempt to * restart the stream. */ +#define PCM_MONOTONIC 0x00000008 /* see pcm_get_htimestamp */ /* PCM runtime states */ -#define PCM_STATE_OPEN 0 -#define PCM_STATE_SETUP 1 -#define PCM_STATE_PREPARED 2 -#define PCM_STATE_RUNNING 3 +#define PCM_STATE_RUNNING 3 #define PCM_STATE_XRUN 4 #define PCM_STATE_DRAINING 5 -#define PCM_STATE_PAUSED 6 #define PCM_STATE_SUSPENDED 7 #define PCM_STATE_DISCONNECTED 8 @@ -143,10 +140,6 @@ unsigned int pcm_params_get_min(struct pcm_params *pcm_params, unsigned int pcm_params_get_max(struct pcm_params *pcm_params, enum pcm_param param); -/* Set and get config */ -int pcm_get_config(struct pcm *pcm, struct pcm_config *config); -int pcm_set_config(struct pcm *pcm, struct pcm_config *config); - /* Returns a human readable reason for the last error */ const char *pcm_get_error(struct pcm *pcm); @@ -162,10 +155,9 @@ unsigned int pcm_get_buffer_size(struct pcm *pcm); unsigned int pcm_frames_to_bytes(struct pcm *pcm, unsigned int frames); unsigned int pcm_bytes_to_frames(struct pcm *pcm, unsigned int bytes); -/* Returns the pcm latency in ms */ -unsigned int pcm_get_latency(struct pcm *pcm); - /* Returns available frames in pcm buffer and corresponding time stamp. + * The clock is CLOCK_MONOTONIC if flag PCM_MONOTONIC was specified in pcm_open, + * otherwise the clock is CLOCK_REALTIME. * For an input stream, frames available are frames ready for the * application to read. * For an output stream, frames available are the number of empty frames available @@ -190,6 +182,8 @@ int pcm_mmap_begin(struct pcm *pcm, void **areas, unsigned int *offset, unsigned int *frames); int pcm_mmap_commit(struct pcm *pcm, unsigned int offset, unsigned int frames); +/* Prepare the PCM substream to be triggerable */ +int pcm_prepare(struct pcm *pcm); /* Start and stop a PCM channel that doesn't transfer data */ int pcm_start(struct pcm *pcm); int pcm_stop(struct pcm *pcm); |