/builddir/build/BUILD/alsa-lib-1.0.22/src/pcm/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 <abramo@alsa-project.org>
Date:
2000-2001

Function Documentation

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.
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.
 All Data Structures Files Functions Variables Typedefs Enumerations Enumerator Defines

Generated for ALSA project - the C library reference by doxygen 1.6.1