pcm_multi.c File Reference

PCM Multi Streams to One Conversion Plugin Interface. More...

Functions
int	snd_pcm_multi_open (snd_pcm_t **pcmp, const char *name, unsigned int slaves_count, unsigned int master_slave, snd_pcm_t **slaves_pcm, unsigned int *schannels_count, unsigned int channels_count, int *sidxs, unsigned int *schannels, int close_slaves)
	Creates a new Multi PCM.
int	_snd_pcm_multi_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 Multi PCM.

Detailed Description

PCM Multi Streams to One Conversion Plugin Interface.

Author

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

Date

2000-2001

Function Documentation

_snd_pcm_multi_open()

int _snd_pcm_multi_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 Multi PCM.

Parameters

pcmp	Returns created PCM handle
name	Name of PCM
root	Root configuration node
conf	Configuration node with Multi 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_multi_open()

int snd_pcm_multi_open	(	snd_pcm_t **	pcmp,
		const char *	name,
		unsigned int	slaves_count,
		unsigned int	master_slave,
		snd_pcm_t **	slaves_pcm,
		unsigned int *	schannels_count,
		unsigned int	channels_count,
		int *	sidxs,
		unsigned int *	schannels,
		int	close_slaves )

Creates a new Multi PCM.

Parameters

pcmp	Returns created PCM handle
name	Name of PCM
slaves_count	Count of slaves
master_slave	Master slave number
slaves_pcm	Array with slave PCMs
schannels_count	Array with slave channel counts
channels_count	Count of channels
sidxs	Array with channels indexes to slaves
schannels	Array with slave channels
close_slaves	When set, the slave PCM handle is closed

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.