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Re: [MMUSIC] a=rtcp-mux-exclusive vs a=rtcp:0 compression

Roman Shpount <roman@telurix.com> Tue, 05 April 2016 21:44 UTC

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Date: Tue, 05 Apr 2016 17:36:59 -0400
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From: Roman Shpount <roman@telurix.com>
To: Justin Uberti <juberti@google.com>
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Subject: Re: [MMUSIC] a=rtcp-mux-exclusive vs a=rtcp:0 compression
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I have modified the proposed SDP slightly. I have removed IN IP4 0.0.0.0
from a=rtcp attribute. I cannot find a place that states that a=rtcp is
required when rtcp-mux is used, so I removed a=rtcp from the
rtcp-mux-exclusive examples. Also, since we are shaving bits, I did a
version with SDP attribute named rtcp-mux-only, which is 5 bytes shorter.
So, my results are:

              | port 0 | -exclusive | -only |
---------------------------------------------
Uncompressed  |   1438 |       1462 |  1452 |
Compressed    |    716 |        725 |   720 |

Regards,

_____________
Roman Shpount

On Tue, Apr 5, 2016 at 10:14 AM, Justin Uberti <juberti@google.com> wrote:

> Minor point for the beauty contest...
>
> Compressing the attached SDP files (adapted from the examples in
> https://tools.ietf.org/html/draft-ietf-rtcweb-jsep-14#section-7.1) with
> gzip (default settings) gives the following output:
>
>               | port 0 | -exclusive |
> -------------------------------------
> Uncompressed  |   1467 |       1487 |
> Compressed    |    723 |        739 |
>
>
>
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