pcm_rate.c File Reference

PCM Rate Plugin Interface. More...

Include dependency graph for pcm_rate.c:

Functions
const snd_config_t *	snd_pcm_rate_get_default_converter (snd_config_t *root)
	Get a default converter string. More...
int	snd_pcm_rate_open (snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, unsigned int srate, const snd_config_t *converter, snd_pcm_t *slave, int close_slave)
	Creates a new rate PCM. More...
int	_snd_pcm_rate_open (snd_pcm_t **pcmp, const char *name, snd_config_t *root, snd_config_t *conf, snd_pcm_stream_t stream, int mode)
	Creates a new rate PCM. More...

Detailed Description

PCM Rate Plugin Interface.

Author

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

Jaroslav Kysela perex.nosp@m.@per.nosp@m.ex.cz

Date

2000-2004

Function Documentation

_snd_pcm_rate_open()

int _snd_pcm_rate_open	(	snd_pcm_t **	pcmp,
		const char *	name,
		snd_config_t *	root,
		snd_config_t *	conf,
		snd_pcm_stream_t	stream,
		int	mode
	)

Creates a new rate PCM.

Parameters

pcmp	Returns created PCM handle
name	Name of PCM
root	Root configuration node
conf	Configuration node with rate PCM description
stream	Stream type
mode	Stream mode

Return values

zero	on success otherwise a negative error code

Warning

Using of this function might be dangerous in the sense of compatibility reasons. The prototype might be freely changed in future.

snd_pcm_rate_get_default_converter()

const snd_config_t * snd_pcm_rate_get_default_converter

(

snd_config_t *

root

)

Get a default converter string.

Parameters

root	Root configuration node

Return values

A	const config item if found, or NULL

snd_pcm_rate_open()

int snd_pcm_rate_open	(	snd_pcm_t **	pcmp,
		const char *	name,
		snd_pcm_format_t	sformat,
		unsigned int	srate,
		const snd_config_t *	converter,
		snd_pcm_t *	slave,
		int	close_slave
	)

Creates a new rate PCM.

Parameters

pcmp	Returns created PCM handle
name	Name of PCM
sformat	Slave format
srate	Slave rate
converter	SRC type string node
slave	Slave PCM handle
close_slave	When set, the slave PCM handle is closed with copy PCM

Return values

zero	on success otherwise a negative error code

Warning

Using of this function might be dangerous in the sense of compatibility reasons. The prototype might be freely changed in future.