pcm_meter.c File Reference

Helper functions for SND_PCM_TYPE_METER PCM scopes. More...

Include dependency graph for pcm_meter.c:

Functions
int	snd_pcm_meter_add_scope (snd_pcm_t *pcm, snd_pcm_scope_t *scope)
	Add a scope to a SND_PCM_TYPE_METER PCM.
snd_pcm_scope_t *	snd_pcm_meter_search_scope (snd_pcm_t *pcm, const char *name)
	Search an installed scope inside a SND_PCM_TYPE_METER PCM.
snd_pcm_uframes_t	snd_pcm_meter_get_bufsize (snd_pcm_t *pcm)
	Get meter buffer size from a SND_PCM_TYPE_METER PCM.
unsigned int	snd_pcm_meter_get_channels (snd_pcm_t *pcm)
	Get meter channels from a SND_PCM_TYPE_METER PCM.
unsigned int	snd_pcm_meter_get_rate (snd_pcm_t *pcm)
	Get meter rate from a SND_PCM_TYPE_METER PCM.
snd_pcm_uframes_t	snd_pcm_meter_get_now (snd_pcm_t *pcm)
	Get meter "now" frame pointer from a SND_PCM_TYPE_METER PCM.
snd_pcm_uframes_t	snd_pcm_meter_get_boundary (snd_pcm_t *pcm)
	Get boundary for frame pointers from a SND_PCM_TYPE_METER PCM.
void	snd_pcm_scope_set_name (snd_pcm_scope_t *scope, const char *val)
	Set name of a SND_PCM_TYPE_METER PCM scope.
const char *	snd_pcm_scope_get_name (snd_pcm_scope_t *scope)
	Get name of a SND_PCM_TYPE_METER PCM scope.
void	snd_pcm_scope_set_ops (snd_pcm_scope_t *scope, const snd_pcm_scope_ops_t *val)
	Set callbacks for a SND_PCM_TYPE_METER PCM scope.
void *	snd_pcm_scope_get_callback_private (snd_pcm_scope_t *scope)
	Get callbacks private value for a SND_PCM_TYPE_METER PCM scope.
void	snd_pcm_scope_set_callback_private (snd_pcm_scope_t *scope, void *val)
	Get callbacks private value for a SND_PCM_TYPE_METER PCM scope.
int	snd_pcm_scope_s16_open (snd_pcm_t *pcm, const char *name, snd_pcm_scope_t **scopep)
	Add a s16 pseudo scope to a SND_PCM_TYPE_METER PCM.
int16_t *	snd_pcm_scope_s16_get_channel_buffer (snd_pcm_scope_t *scope, unsigned int channel)
	Get s16 pseudo scope frames buffer for a channel.
int	snd_pcm_scope_malloc (snd_pcm_scope_t **ptr)
	allocate an invalid snd_pcm_scope_t using standard malloc

Detailed Description

Helper functions for SND_PCM_TYPE_METER PCM scopes.

Author

Abramo Bagnara abram.nosp@m.o@al.nosp@m.sa-pr.nosp@m.ojec.nosp@m.t.org

Date

2001

Helper functions for SND_PCM_TYPE_METER PCM scopes