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Re: Video orientation header ext. - what is it supposed to do?

From: Singh Varun <varun.singh@aalto.fi>
Date: Thu, 27 Nov 2014 12:48:01 +0000
To: Stefan Håkansson LK <stefan.lk.hakansson@ericsson.com>
CC: "public-webrtc@w3.org" <public-webrtc@w3.org>
Message-ID: <4E79F500-B040-4B35-9033-B057D5C974F3@aalto.fi>

The fact it is in the RTP header and the latest version of RTP-usage says MUST implement. I suppose the browser should be able to rotate it without using CSS rotations?

   WebRTC endpoints that send or receive video MUST implement the
   coordination of video orientation (CVO) RTP header extension as
   described in Section 4 of [I-D.ietf-rtcweb-video<https://tools.ietf.org/html/draft-ietf-rtcweb-rtp-usage-21#ref-I-D.ietf-rtcweb-video>].

On 27 Nov 2014, at 14:37, Stefan Håkansson LK <stefan.lk.hakansson@ericsson.com<mailto:stefan.lk.hakansson@ericsson.com>> wrote:


just noted in [1] that a video orientation RTP header extension seem to
be assumed.

Has it ever been discussed what that would mean in the application
space? I.e. should it transfer to a track property, should it rotate the
view shown by the video element automatically (and in that case: how
would that interact with CSS rotations), or something else?

Sorry if I missed the discussion, but I don't recollect we talked about


[1] http://lists.w3.org/Archives/Public/public-webrtc/2014Nov/0078.html
Received on Thursday, 27 November 2014 12:48:31 UTC

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