Changes between Version 3 and Version 4 of Intel_IPP_Codecs

Timestamp:

Aug 19, 2008 9:47:44 AM (16 years ago)

Author:

bennylp

Comment:

--

Intel_IPP_Codecs

@@ -7 +7 @@
 
 The Intel IPP can be used with PJMEDIA library to provide the following codecs:
- * '''AMR NB''' (4.75 to 12.2 Kbps)
- * '''AMB WB''' (6.6 to 23.85 Kbps
- * '''G.722.1''' (16/24/32/40 Kbps)
- * '''G.723.1''' (5.3/6.3 Kbps)
- * '''G.726''' (16/24/32/40 Kbps)
- * '''G.728''' (16 Kbps)
- * '''G.729A''' (8 Kbps) with Annex B, and annex D/E support for decoding only.
+
+ || '''Codec''' || '''Bitrate (Kbps)''' || '''Clock rate/'''[[BR]]'''frame ptime''' || '''default'''[[BR]]'''frames/pkt''' || '''default'''[[BR]]'''bitrate''' || '''VAD/DTX'''  || '''PLC'''      || '''Note''' ||
+ || '''AMR NB'''     || 4.75 to 12.2           || 8000/160      || 4 || 5900  || internal       || internal       ||                  ||
+ || '''AMR WB'''     || 6.6 to 23.85           || 16000/320     || 1 || 15850 || internal       || internal       ||                  ||
+ || '''G.722.1'''    || 16, 24, 32, 40         || 16000/320     || 1 || 16000 || pjmedia        || internal       ||                  ||
+ || '''G.723.1'''    || 5.3, 6.3               || 8000/240      || 1 || 5300  || internal       || internal       ||                  ||
+ || '''G.726'''      || 16, 24, 32, 40         || 8000/80       || 2 || -     || pjmedia        || pjmedia        || The bitrate is negotiated in SDP ||
+ || '''G.728'''      || 16                     || 8000/80       || 2 || 16000 || pjmedia        || internal       ||                  ||
+ || '''G.729A'''     || 8                      || 8000/80       || 2 || 8000  || pjmedia        || internal       || 1) G.729 VAD (Annex B) is currently disabled.[[BR]] 2) Annex D and Annex E is supported for receive direction. ||
 
 
@@ -23 +25 @@
  * Intel IPP samples
 
-We tested with Intel IPP version 5.3. You may be able to use different Intel IPP version with PJMEDIA, however this has not been tested. As usual, your mileage may vary.
+We tested with Intel IPP version 5.3. You may be able to use different Intel IPP version with PJMEDIA, however we have not tested this. 
 
 Note that the use of Intel IPP may require license, both from Intel and the parties who own the royalty of the codec.
@@ -81 +83 @@
  }}}
 
+== Using in Application ==
+
+=== Codec Registration ===
+
+Before application can use any of the IPP codecs above, the IPP codec factory must be registered to the codec manager. If application is using PJSUA-LIB, this will be done automatically by PJSUA-LIB. If application is using PJMEDIA directly, then it must register the IPP codec factory by calling:
+
+ {{{
+     pjmedia_codec_ipp_init(media_endpt);
+ }}}
+
+Or alternatively, to register all codec factories that are enabled at compile time to the codec manager:
+
+ {{{
+     pjmedia_init_all_codecs(media_endpt);
+ }}}
+
+Note that if the use of {{{pjmedia_init_all_codecs}}} to register all codec will result in linking to all codec libraries that are enabled at compile time and this will increase application's footprint/executable size.
+
+
+
+