Re: [rtcweb] H261/MPEG-1 video quality

Randell Jesup <randell-ietf@jesup.org> Sat, 16 November 2013 22:12 UTC

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Date: Sat, 16 Nov 2013 17:11:22 -0500
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Subject: Re: [rtcweb] H261/MPEG-1 video quality
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On 11/15/2013 5:23 PM, Adam Roach wrote:
>
> Honestly, there aren't really a lot of contenders here. There's really 
> not much that predates H.261 (H.120 did, but it is *actually* 
> unusable, as opposed to merely whine-worthy). Here's a realistic list 
> of codecs to think about, with H.120 added just as an historical 
> backstop to indicate "digital video didn't realistically exist before 
> this point in time":
>
> Codec           | Date | Quality (comparable to)
> ----------------+------+---------------------------
> VP8             | 2008 | Broadcast HDTV
> H.264           | 2003 | Broadcast HDTV

Broadcast HDTV is MPEG2, starting circa 1999/2000,and still is so far as 
I know.  I think you mean that Cable/Satellite HDTV started using H.264 
in circa 2003.

> Theora/VP3/VP4 | 2000 | DivX-encoded movies
> H.263           | 1995 | RealVideo circa 2000
> H.262/MPEG2     | 1995 | DVDs
> MPEG1           | 1993 | CD Videodisc
> H.261           | 1988 | Early "videophones"
> H.120           | 1984 | Belt-sanding your eyeballs
> ----------------+------+---------------------------

-- 
Randell Jesup -- rjesup a t mozilla d o t com