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improve slinfactory API to remove implicit sample rate and require explicit sample rate selection by creator of the slinfactory

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@174705 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin P. Fleming
2009-02-10 19:38:26 +00:00
parent 656110e42b
commit 23939e54f3
2 changed files with 41 additions and 58 deletions
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21
include/asterisk/slinfactory.h
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@@ -38,10 +38,11 @@ struct ast_slinfactory {
size_t holdlen; /*!< Number of samples currently in the hold */
unsigned int size; /*!< Number of samples currently in the factory */
unsigned int format; /*!< Current format the translation path is converting from */
unsigned int output_format; /*!< The output format desired */
};
/*!
* \brief Initialize an slinfactory
* \brief Initialize a slinfactory
*
* \param sf The slinfactory to initialize
*
@@ -49,6 +50,16 @@ struct ast_slinfactory {
*/
void ast_slinfactory_init(struct ast_slinfactory *sf);
/*!
* \brief Initialize a slinfactory
*
* \param sf The slinfactory to initialize
* \param sample_rate The output sample rate desired
*
* \return 0 on success, non-zero on failure
*/
int ast_slinfactory_init_rate(struct ast_slinfactory *sf, unsigned int sample_rate);
/*!
* \brief Destroy the contents of a slinfactory
*
@@ -63,7 +74,7 @@ void ast_slinfactory_init(struct ast_slinfactory *sf);
void ast_slinfactory_destroy(struct ast_slinfactory *sf);
/*!
* \brief Feed audio into an slinfactory
* \brief Feed audio into a slinfactory
*
* \param sf The slinfactory to feed into
* \param f Frame containing audio to feed in
@@ -73,7 +84,7 @@ void ast_slinfactory_destroy(struct ast_slinfactory *sf);
int ast_slinfactory_feed(struct ast_slinfactory *sf, struct ast_frame *f);
/*!
* \brief Read samples from an slinfactory
* \brief Read samples from a slinfactory
*
* \param sf The slinfactory to read from
* \param buf Buffer to put samples into
@@ -84,7 +95,7 @@ int ast_slinfactory_feed(struct ast_slinfactory *sf, struct ast_frame *f);
int ast_slinfactory_read(struct ast_slinfactory *sf, short *buf, size_t samples);
/*!
* \brief Retrieve number of samples currently in an slinfactory
* \brief Retrieve number of samples currently in a slinfactory
*
* \param sf The slinfactory to peek into
*
@@ -93,7 +104,7 @@ int ast_slinfactory_read(struct ast_slinfactory *sf, short *buf, size_t samples)
unsigned int ast_slinfactory_available(const struct ast_slinfactory *sf);
/*!
* \brief Flush the contents of an slinfactory
* \brief Flush the contents of a slinfactory
*
* \param sf The slinfactory to flush
*