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Re: MediaStream Recording : record() method

From: Harald Alvestrand <harald@alvestrand.no>
Date: Wed, 28 Aug 2013 22:22:19 +0200
Message-ID: <521E5BFB.4000803@alvestrand.no>
To: public-media-capture@w3.org
On 08/28/2013 08:08 PM, Mandyam, Giridhar wrote:
> There is an outstanding bug for WebRTC to have a TCP fallback:  see
> https://www.w3.org/Bugs/Public/show_bug.cgi?id=20818.  It has not been
> closed yet, so I assume that a TCP-based PC is still on the table for
> WebRTC.  This should be sufficient for lossless real-time data
> streaming in my opinion, and satisfy the speech recognition use case.

Real-time transmission of HD video over a variable-bandwidth connection
is going to be lossy no matter what the transmission medium is.
With TCP, the loss is going to be packets thrown away when the sender
notices that the output buffers have grown unacceptably big.

> The timeframe for when we'll see TCP-based PC implementations is an
> unknown (at least to me).

And it won't create lossless video.
Received on Wednesday, 28 August 2013 20:22:49 UTC

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