Close #1279: Implemented custom SDP format match for G.722.1 and AMR-NB/WB.

git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@3911 74dad513-b988-da41-8d7b-12977e46ad98

2 files changed, 120 insertions, 0 deletions

diff --git a/pjmedia/include/pjmedia-codec/amr_sdp_match.h b/pjmedia/include/pjmedia-codec/amr_sdp_match.h
new file mode 100644
index 00000000..73e5ecd7
--- /dev/null
+++ b/pjmedia/include/pjmedia-codec/amr_sdp_match.h
@@ -0,0 +1,61 @@
+/* $Id$ */
+/* 
+ * Copyright (C) 2008-2011 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_CODEC_AMR_SDP_MATCH_H__
+#define __PJMEDIA_CODEC_AMR_SDP_MATCH_H__
+
+
+/**
+ * @file g7221_sdp_match.h
+ * @brief Special SDP format match for AMR-NB and AMR-WB.
+ */
+
+#include <pjmedia/sdp_neg.h>
+
+PJ_BEGIN_DECL
+
+
+/* Match AMR-NB and AMR-WB format in the SDP media offer and answer. This
+ * function will match some AMR settings in the SDP format parameters, i.e:
+ * octet-align, crc, robust-sorting, interleaving. Note that, for answerer,
+ * if octet-align mode needs to be adaptable to offerer setting, application
+ * should set #PJMEDIA_SDP_NEG_FMT_MATCH_ALLOW_MODIFY_ANSWER in the option.
+ *
+ * @param pool		The memory pool.
+ * @param offer		The SDP media offer.
+ * @param o_fmt_idx	Index of the AMR format in the SDP media offer.
+ * @param answer	The SDP media answer.
+ * @param a_fmt_idx	Index of the AMR format in the SDP media answer.
+ * @param option	The format matching option, see
+ *			#pjmedia_sdp_neg_fmt_match_flag.
+ *
+ * @return		PJ_SUCCESS when the formats in offer and answer match.
+ */
+PJ_DECL(pj_status_t) pjmedia_codec_amr_match_sdp( pj_pool_t *pool,
+						  pjmedia_sdp_media *offer,
+						  unsigned o_fmt_idx,
+						  pjmedia_sdp_media *answer,
+						  unsigned a_fmt_idx,
+						  unsigned option);
+
+
+PJ_END_DECL
+
+
+#endif	/* __PJMEDIA_CODEC_AMR_SDP_MATCH_H__ */
diff --git a/pjmedia/include/pjmedia-codec/g7221_sdp_match.h b/pjmedia/include/pjmedia-codec/g7221_sdp_match.h
new file mode 100644
index 00000000..a4dca0bd
--- /dev/null
+++ b/pjmedia/include/pjmedia-codec/g7221_sdp_match.h
@@ -0,0 +1,59 @@
+/* $Id$ */
+/* 
+ * Copyright (C) 2008-2011 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_CODEC_G7221_SDP_MATCH_H__
+#define __PJMEDIA_CODEC_G7221_SDP_MATCH_H__
+
+
+/**
+ * @file g7221_sdp_match.h
+ * @brief Special SDP format match for G722.1.
+ */
+
+#include <pjmedia/sdp_neg.h>
+
+PJ_BEGIN_DECL
+
+/**
+ * Match G.722.1 format in the SDP media offer and answer. This function
+ * will match G.722.1 bitrate setting in the SDP format parameter of
+ * offer and answer.
+ *
+ * @param pool		The memory pool.
+ * @param offer		The SDP media offer.
+ * @param o_fmt_idx	Index of the G.722.1 format in the SDP media offer.
+ * @param answer	The SDP media answer.
+ * @param a_fmt_idx	Index of the G.722.1 format in the SDP media answer.
+ * @param option	The format matching option, see
+ *			#pjmedia_sdp_neg_fmt_match_flag.
+ *
+ * @return		PJ_SUCCESS when the formats in offer and answer match.
+ */
+PJ_DECL(pj_status_t) pjmedia_codec_g7221_match_sdp( pj_pool_t *pool,
+						    pjmedia_sdp_media *offer,
+						    unsigned o_fmt_idx,
+						    pjmedia_sdp_media *answer,
+						    unsigned a_fmt_idx,
+						    unsigned option);
+
+
+PJ_END_DECL
+
+
+#endif	/* __PJMEDIA_CODEC_G7221_SDP_MATCH_H__ */