Ticket #774:
 - Initial source of G.722.1/Annex C integration.
 - Disabled some "odd" modes of L16 codec (11kHz & 22kHz mono & stereo) while releasing some payload types.



git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@2563 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjmedia/include/pjmedia-codec/config.h b/pjmedia/include/pjmedia-codec/config.h
index 805ac63..046c861 100644
--- a/pjmedia/include/pjmedia-codec/config.h
+++ b/pjmedia/include/pjmedia-codec/config.h
@@ -233,4 +233,12 @@
 #endif
 
 
+/**
+ * G.722.1 codec is disabled by default, it's currently under development.
+ */
+#ifndef PJMEDIA_HAS_G7221_CODEC
+#   define PJMEDIA_HAS_G7221_CODEC    0
+#endif
+
+
 #endif	/* __PJMEDIA_CODEC_CONFIG_H__ */
diff --git a/pjmedia/include/pjmedia-codec/g7221.h b/pjmedia/include/pjmedia-codec/g7221.h
new file mode 100644
index 0000000..11ec11f
--- /dev/null
+++ b/pjmedia/include/pjmedia-codec/g7221.h
@@ -0,0 +1,113 @@
+/* $Id$ */
+/* 
+ * Copyright (C) 2008-2009 Teluu Inc. (http://www.teluu.com)
+ * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
+ */
+#ifndef __PJMEDIA_CODECS_G7221_H__
+#define __PJMEDIA_CODECS_G7221_H__
+
+/**
+ * @file pjmedia-codec/g7221.h
+ * @brief G722.1 codec.
+ */
+
+#include <pjmedia-codec/types.h>
+
+/**
+ * @defgroup PJMED_G7221_CODEC G722.1 Codec
+ * @ingroup PJMEDIA_CODEC
+ * @brief Implementation of G722.1 codec
+ * @{
+ *
+ * <b>G722.1 licensed from Polycom®</b>
+ * <b>G722.1 Annex C licensed from Polycom®</b>
+ *
+ * This section describes functions to register and register G722.1 codec
+ * factory to the codec manager. After the codec factory has been registered,
+ * application can use @ref PJMEDIA_CODEC API to manipulate the codec.
+ *
+ * PJMEDIA G722.1 codec implementation is based on ITU-T Recommendation 
+ * G.722.1 (05/2005) C fixed point implementation including its Annex C.
+ *
+ * G722.1 is a low complexity codec that supports for 7kHz and 14kHz bandwidth
+ * audio signals working at bitrates ranging from 16kbps to 48kbps. It may be
+ * used with speech or music inputs.
+ *
+ * The codec implementation supports for standard and non-standard bitrates.
+ * By default, the standard bitrates are enabled upon initialization, i.e.:
+ * - 24kbps and 32kbps for audio bandwidth 7 kHz (16kHz sampling rate),
+ * - 24kbps, 32kbps, and 48kbps for audio bandwidth 14 kHz (32kHz sampling 
+ *   rate).
+ * The usage of non-standard bitrates must follow this requirements:
+ * - for sampling rate 16kHz: 16000 to 32000 bps, it must be a multiple of 400
+ * - for sampling rate 32kHz: 24000 to 48000 bps, it must be a multiple of 400
+ * Note that currently it is only up to two non-standard modes can be enabled
+ * at one time.
+ */
+
+PJ_BEGIN_DECL
+
+/**
+ * Initialize and register G722.1 codec factory to pjmedia endpoint.
+ *
+ * @param endpt	    The pjmedia endpoint.
+ *
+ * @return	    PJ_SUCCESS on success.
+ */
+PJ_DECL(pj_status_t) pjmedia_codec_g7221_init( pjmedia_endpt *endpt );
+
+
+/**
+ * Enable and disable G722.1 mode. By default, the standard modes are 
+ * enabled upon initialization, i.e.:
+ * - sampling rate 16kHz, bitrate 24kbps and 32kbps.
+ * - sampling rate 32kHz, bitrate 24kbps, 32kbps, and 48kbps.
+ * This function can also be used for enabling non-standard modes.
+ * Note that currently it is only up to two non-standard modes can be 
+ * enabled at one time.
+ *
+ * @param sample_rate	PCM sampling rate, in Hz, valid values are only 
+ *			16000 and 32000.
+ * @param bitrate	G722.1 bitrate, in bps, the valid values are
+ *			standard and non-standard bitrates as described 
+ *			above.
+ * @param enabled	PJ_TRUE for enabling specified mode.
+ *
+ * @return		PJ_SUCCESS on success.
+ */
+PJ_DECL(pj_status_t) pjmedia_codec_g7221_set_mode(unsigned sample_rate, 
+						  unsigned bitrate, 
+						  pj_bool_t enabled);
+
+
+/**
+ * Unregister G722.1 codecs factory from pjmedia endpoint.
+ *
+ * @return	    PJ_SUCCESS on success.
+ */
+PJ_DECL(pj_status_t) pjmedia_codec_g7221_deinit(void);
+
+
+PJ_END_DECL
+
+
+/**
+ * @}
+ */
+
+#endif	/* __PJMEDIA_CODECS_G7221_H__ */
+
diff --git a/pjmedia/include/pjmedia-codec/types.h b/pjmedia/include/pjmedia-codec/types.h
index c1bae16..dde1371 100644
--- a/pjmedia/include/pjmedia-codec/types.h
+++ b/pjmedia/include/pjmedia-codec/types.h
@@ -22,7 +22,6 @@
 
 #include <pjmedia-codec/config.h>
 
-
 /**
  * These are the dynamic payload types that are used by codecs in
  * this library. Also see the header file <pjmedia/codec.h> for list
@@ -44,12 +43,12 @@
     PJMEDIA_RTP_PT_SPEEX_UWB,			/**< Speex 32KHz	    */
     PJMEDIA_RTP_PT_L16_8KHZ_MONO,		/**< L16 @ 8KHz, mono	    */
     PJMEDIA_RTP_PT_L16_8KHZ_STEREO,		/**< L16 @ 8KHz, stereo     */
-    PJMEDIA_RTP_PT_L16_11KHZ_MONO,		/**< L16 @ 11KHz, mono	    */
-    PJMEDIA_RTP_PT_L16_11KHZ_STEREO,		/**< L16 @ 11KHz, stereo    */
+    //PJMEDIA_RTP_PT_L16_11KHZ_MONO,		/**< L16 @ 11KHz, mono	    */
+    //PJMEDIA_RTP_PT_L16_11KHZ_STEREO,		/**< L16 @ 11KHz, stereo    */
     PJMEDIA_RTP_PT_L16_16KHZ_MONO,		/**< L16 @ 16KHz, mono	    */
     PJMEDIA_RTP_PT_L16_16KHZ_STEREO,		/**< L16 @ 16KHz, stereo    */
-    PJMEDIA_RTP_PT_L16_22KHZ_MONO,		/**< L16 @ 22KHz, mono	    */
-    PJMEDIA_RTP_PT_L16_22KHZ_STEREO,		/**< L16 @ 22KHz, stereo    */
+    //PJMEDIA_RTP_PT_L16_22KHZ_MONO,		/**< L16 @ 22KHz, mono	    */
+    //PJMEDIA_RTP_PT_L16_22KHZ_STEREO,		/**< L16 @ 22KHz, stereo    */
     PJMEDIA_RTP_PT_L16_32KHZ_MONO,		/**< L16 @ 32KHz, mono	    */
     PJMEDIA_RTP_PT_L16_32KHZ_STEREO,		/**< L16 @ 32KHz, stereo    */
     PJMEDIA_RTP_PT_L16_48KHZ_MONO,		/**< L16 @ 48KHz, mono	    */
@@ -65,6 +64,11 @@
     PJMEDIA_RTP_PT_G722_1_16,			/**< G722.1 (16Kbps)	    */
     PJMEDIA_RTP_PT_G722_1_24,			/**< G722.1 (24Kbps)	    */
     PJMEDIA_RTP_PT_G722_1_32,			/**< G722.1 (32Kbps)	    */
+    PJMEDIA_RTP_PT_G7221C_24,			/**< G722.1 Annex C (24Kbps)*/
+    PJMEDIA_RTP_PT_G7221C_32,			/**< G722.1 Annex C (32Kbps)*/
+    PJMEDIA_RTP_PT_G7221C_48,			/**< G722.1 Annex C (48Kbps)*/
+    PJMEDIA_RTP_PT_G7221_RSV1,			/**< G722.1 reserve	    */
+    PJMEDIA_RTP_PT_G7221_RSV2,			/**< G722.1 reserve	    */
 };