SDP_FIND_MEDIA(3COMMPUTIL)
Communication Protocol Parser Utilities Library Functions
NAME
sdp_find_media - find the specified media from the media list
SYNOPSIS
cc [
flag...]
file... -
lcommputil [
library...]
#include <sdp.h>
sdp_media_t *sdp_find_media(
sdp_media_t *media,
const char *name);
DESCRIPTION
The
sdp_find_media() function searches the media list for the media
specified by
name. If the media is found it returns the pointer to
the media. Otherwise it returns
NULL.
RETURN VALUES
The
sdp_find_media() function returns the media (
sdp_media_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 *my_media;
my_media = sdp_find_media(session->s_media, "video");
/*
* my_media now points to the structure containg video media section
* information
*/
ATTRIBUTES
See
attributes(7) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Committed |
+--------------------+-----------------+
|MT-Level | Safe |
+--------------------+-----------------+
SEE ALSO
sdp_parse(3COMMPUTIL),
libcommputil(3LIB),
attributes(7) October 12, 2007 SDP_FIND_MEDIA(3COMMPUTIL)
