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Add support for allowing an RTP engine to decide on whether it is possible for specific formats to be transcoded for an RTP instance.

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@201902 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Joshua Colp
2009-06-19 15:41:24 +00:00
parent ad0d1bfd9e
commit e85296e244
3 changed files with 35 additions and 1 deletions
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22
include/asterisk/rtp_engine.h
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@@ -353,6 +353,8 @@ struct ast_rtp_engine {
int (*activate)(struct ast_rtp_instance *instance);
/*! Callback to request that the RTP engine send a STUN BIND request */
void (*stun_request)(struct ast_rtp_instance *instance, struct sockaddr_in *suggestion, const char *username);
/*! Callback to get the transcodeable formats supported */
int (*available_formats)(struct ast_rtp_instance *instance, int to_endpoint, int to_asterisk);
/*! Linked list information */
AST_RWLIST_ENTRY(ast_rtp_engine) entry;
};
@@ -1497,6 +1499,26 @@ int ast_rtp_instance_set_write_format(struct ast_rtp_instance *instance, int for
*/
int ast_rtp_instance_make_compatible(struct ast_channel *chan, struct ast_rtp_instance *instance, struct ast_channel *peer);
/*! \brief Request the formats that can be transcoded
*
* \param instance The RTP instance
* \param to_endpoint Formats being sent/received towards the endpoint
* \param to_asterisk Formats being sent/received towards Asterisk
*
* \retval supported formats
*
* Example usage:
*
* \code
* ast_rtp_instance_available_formats(instance, AST_FORMAT_ULAW, AST_FORMAT_SLINEAR);
* \endcode
*
* This sees if it is possible to have ulaw communicated to the endpoint but signed linear received into Asterisk.
*
* \since 1.6.3
*/
int ast_rtp_instance_available_formats(struct ast_rtp_instance *instance, int to_endpoint, int to_asterisk);
/*!
* \brief Indicate to the RTP engine that packets are now expected to be sent/received on the RTP instance
*