[MMUSIC] draft-ietf-mmusic-image-attributes, question regarding frame rate

Ingemar Johansson S <ingemar.s.johansson@ericsson.com> Wed, 02 June 2010 13:27 UTC

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From: Ingemar Johansson S <ingemar.s.johansson@ericsson.com>
To: mmusic <mmusic@ietf.org>
Date: Wed, 02 Jun 2010 15:27:08 +0200
Thread-Topic: draft-ietf-mmusic-image-attributes, question regarding frame rate
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Cc: Ingemar Johansson S <ingemar.s.johansson@ericsson.com>, Roni Even <Even.roni@huawei.com>
Subject: [MMUSIC] draft-ietf-mmusic-image-attributes, question regarding frame rate
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Hi

First of all, thanks for all the comments on the image attribute draft. I will submit a new version at the end of the week or early next week.

I received a question regarding frame rate . In an early version it was possible to specify a frame rate range. See
http://tools.ietf.org/id/draft-johansson-mmusic-image-attributes-01.txt

For some reason this was removed but I don't anymore remember why. I recall that the reason was that, while frame rate may have a meaning in older codecs such as H.261, it has less meaning for e.g H.264. Moreover the "framerate" in H.264 is given by the level. But it is possible that my memory is totally off. 
Any comments around this are welcome

Regards
/Ingemar
=================================
INGEMAR JOHANSSON  M.Sc. 
Senior Research Engineer 

Ericsson AB
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