/usr/src/packages/BUILD/alsa-lib-1.0.25/src/pcm/pcm_file.c File Reference

PCM File Plugin Interface. More...

Functions

int snd_pcm_file_open (snd_pcm_t **pcmp, const char *name, const char *fname, int fd, const char *ifname, int ifd, int trunc, const char *fmt, int perm, snd_pcm_t *slave, int close_slave)
 Creates a new File PCM.
int _snd_pcm_file_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 File PCM.

Detailed Description

PCM File Plugin Interface.

Author:
Abramo Bagnara <abramo@alsa-project.org>
Date:
2000-2001

Function Documentation

int _snd_pcm_file_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 File PCM.

Parameters:
pcmp Returns created PCM handle
Parameters:
name Name of PCM
Parameters:
root Root configuration node
Parameters:
conf Configuration node with File PCM description
Parameters:
stream Stream type
Parameters:
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_file_open ( snd_pcm_t **  pcmp,
const char *  name,
const char *  fname,
int  fd,
const char *  ifname,
int  ifd,
int  trunc,
const char *  fmt,
int  perm,
snd_pcm_t slave,
int  close_slave 
)

Creates a new File PCM.

Parameters:
pcmp Returns created PCM handle
Parameters:
name Name of PCM
Parameters:
fname Output filename (or NULL if file descriptor fd is available)
Parameters:
fd Output file descriptor
Parameters:
ifname Input filename (or NULL if file descriptor ifd is available)
Parameters:
ifd Input file descriptor (if (ifd < 0) && (ifname == NULL), no input redirection will be performed)
Parameters:
trunc Truncate the file if it already exists
Parameters:
fmt File format ("raw" or "wav" are available)
Parameters:
perm File permission
Parameters:
slave Slave PCM handle
Parameters:
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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