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Create rate converter plugin SDK

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Created a new rate converter plugin SDK.
A rate converter can be replaced as an extra plugin now.
The default rate converter is a built-in linear converter.

You can find a sample external converter in alsa-plugins package.
This commit is contained in:
Takashi Iwai 2006-04-06 18:37:55 +02:00
parent 8f605df24a
commit 33d69ef33b
8 changed files with 879 additions and 461 deletions
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2
include/pcm_plugin.h
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@ -156,7 +156,7 @@ int _snd_pcm_route_open(snd_pcm_t **pcmp, const char *name,
* Rate plugin for linear formats
*/
int snd_pcm_rate_open(snd_pcm_t **pcmp, const char *name,
snd_pcm_format_t sformat, unsigned int srate,
snd_pcm_format_t sformat, unsigned int srate, const char *converter,
snd_pcm_t *slave, int close_slave);
int _snd_pcm_rate_open(snd_pcm_t **pcmp, const char *name,
snd_config_t *root, snd_config_t *conf,