# /builddir/build/BUILD/alsa-lib-1.1.0/src/pcm/pcm_adpcm.c File Reference

PCM Ima-ADPCM Conversion Plugin Interface. More...

## Functions

int | snd_pcm_adpcm_open (snd_pcm_t **pcmp, const char *name, snd_pcm_format_t sformat, snd_pcm_t *slave, int close_slave)
| Creates a new Ima-ADPCM conversion PCM.
int | _snd_pcm_adpcm_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 Ima-ADPCM conversion PCM.

## Detailed Description

PCM Ima-ADPCM Conversion Plugin Interface.

Author:
  Abramo Bagnara <abramo@alsa-project.org>
  Uros Bizjak <uros@kss-loka.si>
  Jaroslav Kysela <perex@perex.cz>

Date:
  2000-2001

## Function Documentation

int _snd_pcm_adpcm_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 Ima-ADPCM conversion PCM.

Parameters:

  | pcmp | Returns created PCM handle
  | name | Name of PCM
  | root | Root configuration node
  | conf | Configuration node with copy 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_adpcm_open | ( | snd_pcm_t ** | pcmp,
|  | const char * | name,
|  | snd_pcm_format_t | sformat,
|  | snd_pcm_t * | slave,
|  | int | close_slave |
| ) |  |  |

Creates a new Ima-ADPCM conversion PCM.

Parameters:

  | pcmp | Returns created PCM handle
  | name | Name of PCM
  | sformat | Slave (destination) format
  | 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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