| 92 | === Passthrough Codecs === |
| 93 | |
| 94 | While the actual codec encoding/decoding will be done by APS/VAS, "dummy" codec instances still need to be created in PJMEDIA: |
| 95 | - PJMEDIA needs the list of codecs supported to be offered/negotiated in SDP, |
| 96 | - some codecs have special framing requirements which are not handled by the hardware codecs, for example the framing rules of AMR codecs ([http://tools.ietf.org/html/rfc3267 RFC 3267]). |
| 97 | |
| 98 | Passthrough codecs will be implemented for: PCMA, PCMU, iLBC, G.729, and AMR-NB. |
| 99 | |
| 100 | |
| 101 | == Using APS-Direct or VAS-Direct == |
| 102 | |
| 103 | TBD. |
| 104 | |
| 105 | |
| 106 | == References == |
| 107 | |
| 108 | Internal documentations: |
| 109 | 1. [wiki:APS Using APS in PJSIP] |
| 110 | 1. [wiki:FAQ#symbian Known problems of PJSIP with APS and Symbian target in general] |
| 111 | 1. [http://www.pjsip.org/pjmedia/docs/html/index.htm PJMEDIA and PJMEDIA-CODEC Documentation] |
| 112 | |
| 113 | External links: |
| 114 | 1. [http://www.forum.nokia.com/info/sw.nokia.com/id/baae1f23-214a-42e0-96fc-aca65d86bcee/Audio_Proxy_Server_and_VoIP_Audio_Services_v1_0_en.pdf.html Audio Proxy Server and VoIP Audio Services (presentation)] |
| 115 | 1. [http://wiki.forum.nokia.com/index.php/Audio_Proxy_Server Audio Proxy Server] |
| 116 | 1. [http://wiki.forum.nokia.com/index.php/VoIP_Audio_Service_API Nokia VoIP Audio Service API] |
| 117 | |
| 118 | |
| 119 | |