SDP in-place line modification library
This is a simple SDP library designed for in-place modification of sdp lines.
SDP parsing in browsers is relatively brittle (and not currently compliant with the latest SDP RFC: 4566). This library has been developed as an interim approach for dealing with SDP generated by a browser.
It follows the following rules:
The order of SDP lines is never modified (in order = out order)
SDP lines are not modified unless a specific tweak requires modifying the line. That is, a line is not parsed and regenerated unless a particular modification operation requires it.
Any new lines added to the SDP are added either after existing lines of
the same time (for instance
a lines), or if no other lines exist within
the relevant scope, then immediately after the line type specified in the
To be completed.
If you are looking for an SDP parser which works with an intermediate JS object format, then any of the libraries below will do what you need:
The following standard documents are related to SDP with regards to WebRTC:
modify method is used to apply a change to the underlying data. When
a line matches the specified regex, the modifier function is invoked with
the following function signature:
// return the line to reinject back into the sdpreturn line;
The arguments to the following are as follows:
line: the full line that matched the regex
match: the match result from executing the regex
type: the line type which is specified prior to the = (e.g.
payload: the payload of the line (after the = character)
In the sample modifier above, we simply return the line unchanged, but we can reformat the line or replace it entirely.
Convert back to a string representation
Copyright (c) 2013 Damon Oehlman email@example.com
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