diff options
| author | Mark Michelson <mmichelson@digium.com> | 2014-09-18 16:37:47 +0000 |
|---|---|---|
| committer | Mark Michelson <mmichelson@digium.com> | 2014-09-18 16:37:47 +0000 |
| commit | 23a375be5f27e5418b47d06a577b663dca5e62bc (patch) | |
| tree | 082cebd4311a4d80054fc38d2c2bc62171695fba /include/asterisk/format_cap.h | |
| parent | 5c5aee445879016765f2205015cd33b62175f9c6 (diff) | |
Add API call to determine if format capability structure is "empty".
Empty here means that there are no formats in the format_cap structure
or the only format in it is the "none" format.
I've added calls to check the emptiness of a format_cap in a few places
in order to short-circuit operations that would otherwise be pointless
as well as to prevent some assertions from being triggered in cases
where channels with no formats are used.
git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/13@423414 65c4cc65-6c06-0410-ace0-fbb531ad65f3
Diffstat (limited to 'include/asterisk/format_cap.h')
| -rw-r--r-- | include/asterisk/format_cap.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/asterisk/format_cap.h b/include/asterisk/format_cap.h index f7d33fccd..94e81f869 100644 --- a/include/asterisk/format_cap.h +++ b/include/asterisk/format_cap.h @@ -321,4 +321,13 @@ int ast_format_cap_has_type(const struct ast_format_cap *cap, enum ast_media_typ */ const char *ast_format_cap_get_names(struct ast_format_cap *cap, struct ast_str **buf); +/*! + * \brief Determine if a format cap has no formats in it. + * + * \param cap The format cap to check for emptiness + * \retval 1 The format cap has zero formats or only ast_format_none + * \retval 0 The format cap has at least one format + */ +int ast_format_cap_empty(struct ast_format_cap *cap); + #endif /* _AST_FORMAT_CAP_H */ |