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Clarify documentation on how we store codec preference lists. 

(closes issue #18397)
 Reported by: birgita


git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.4@296990 f38db490-d61c-443f-a65b-d21fe96a405b
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tilghman 2010-12-01 16:59:26 +00:00
parent e729643886
commit d73d057414
1 changed files with 9 additions and 1 deletions
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10
include/asterisk/frame.h
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@ -556,7 +556,15 @@ void ast_parse_allow_disallow(struct ast_codec_pref *pref, int *mask, const char
/*! \brief Dump audio codec preference list into a string */
int ast_codec_pref_string(struct ast_codec_pref *pref, char *buf, size_t size);
/*! \brief Shift an audio codec preference list up or down 65 bytes so that it becomes an ASCII string */
/*! \brief Shift an audio codec preference list up or down 65 bytes so that it becomes an ASCII string
* \note Due to a misunderstanding in how codec preferences are stored, this
* list starts at 'B', not 'A'. For backwards compatibility reasons, this
* cannot change.
* \param pref A codec preference list structure
* \param buf A string denoting codec preference, appropriate for use in line transmission
* \param size Size of \a buf
* \param right Boolean: if 0, convert from \a buf to \a pref; if 1, convert from \a pref to \a buf.
*/
void ast_codec_pref_convert(struct ast_codec_pref *pref, char *buf, size_t size, int right);
/*! \brief Returns the number of samples contained in the frame */