/builddir/build/BUILD/alsa-lib-1.0.17a/src/pcm/pcm_rate.c File Reference

PCM Rate Plugin Interface. More...

Functions
const snd_config_t *	snd_pcm_rate_get_default_converter (snd_config_t *root)
	Get a default converter string.
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.
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.

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Detailed Description

PCM Rate Plugin Interface.

Author:

Abramo Bagnara <abramo@alsa-project.org>

Jaroslav Kysela <perex@perex.cz>

Date:

2000-2004

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Function Documentation

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.

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

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
	type	SRC type string
	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.

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