sdp_find_media_rtpmap.3commputil revision c10c16dec587a0662068f6e2991c29ed3a9db943
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Copyright (c) 2007, Sun Microsystems Inc. All Rights Reserved.
The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
Copyright (c) 2007, Sun Microsystems Inc. All Rights Reserved.
The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
sdp_find_media_rtpmap 3COMMPUTIL "12 Oct 2007" "SunOS 5.11" "Communication Protocol Parser Utilities Library Functions"
NAME
sdp_find_media_rtpmap - find the rtpmap attribute in the specified media
SYNOPSIS
cc [ flag...] file... -lcommputil [ library...] #include <sdp.h> sdp_attr_t *sdp_find_media_rtpmap(sdp_media_t *media, const char *format);
DESCRIPTION
The sdp_find_media_rtpmap() function searches the attribute list of the specified media structure, media, for the specified format. If the search is successful a pointer to that rtpmap attribute is returned. Otherwise it returns NULL.
RETURN VALUES
The sdp_find_media_rtpmap() function returns the attribute (sdp_attr_t *) on success and NULL when the search fails or the mandatory input parameters are NULL.
EXAMPLES
Example 1 An (incomplete) SDP description that contains two media sections: audio and video.
m=audio 49170 RTP/AVP 0 8 a=rtpmap:0 PCMU/8000 a=rtpmap:8 PCMA/8000 m=video 51372 RTP/AVP 31 32 a=rtpmap:31 H261/90000 a=rtpmap:32 MPV/90000 /* * Assuming that above description is parsed using sdp_parse() and that * the parsed structure is in "session" sdp_session_t structure. */ sdp_media_t *video; sdp_attr_t *mpv; video = sdp_find_media(session->s_media, "video); mpv = sdp_find_media_rtpmap(video, "32"); /* * Now the attribute structure sdp_attr_t, mpv will be having * values from the attribute field "a=rtpmap:32 MPV/90000" */
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| Interface Stability | Committed |
| MT-Level | Safe |
SEE ALSO
libcommputil(3LIB), sdp_parse(3COMMPUTIL), attributes(5)