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pcm_dmix.c File Reference

PCM Direct Stream Mixing (dmix) Plugin Interface. More...

Macros

#define SEC_TO_MS   1000 /* Seconds representing in Milli seconds */
 
#define LOW_LATENCY_PERIOD_TIME   10 /* slave_period time for low latency requirements in ms */
 

Functions

int snd_pcm_dmix_open (snd_pcm_t **pcmp, const char *name, struct snd_pcm_direct_open_conf *opts, struct slave_params *params, snd_config_t *root, snd_config_t *sconf, snd_pcm_stream_t stream, int mode)
 Creates a new dmix PCM. More...
 
int _snd_pcm_dmix_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 dmix PCM. More...
 

Detailed Description

PCM Direct Stream Mixing (dmix) Plugin Interface.

Author
Jaroslav Kysela perex.nosp@m.@per.nosp@m.ex.cz
Date
2003

Function Documentation

int _snd_pcm_dmix_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 dmix PCM.

Parameters
pcmpReturns created PCM handle
nameName of PCM
rootRoot configuration node
confConfiguration node with dmix PCM description
streamPCM Stream
modePCM Mode
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_dmix_open ( snd_pcm_t **  pcmp,
const char *  name,
struct snd_pcm_direct_open_conf *  opts,
struct slave_params *  params,
snd_config_t root,
snd_config_t sconf,
snd_pcm_stream_t  stream,
int  mode 
)

Creates a new dmix PCM.

Parameters
pcmpReturns created PCM handle
nameName of PCM
optsDirect PCM configurations
paramsParameters for slave
rootConfiguration root
sconfSlave configuration
streamPCM Direction (stream)
modePCM Mode
Return values
zeroon 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.