WebM format for Record

Daniel Drake dsd at laptop.org
Sat Apr 9 14:00:02 EDT 2011

On 8 April 2011 14:04, Jon Nettleton <jon.nettleton at gmail.com> wrote:
> Hey Guys,
> I was hoping to get more work done on this but haven't had the chance
> to work on it any further.  This patch switches Record to use the WebM
> video format as specified by google.

Thanks for looking at this, this will be useful for experimenting with
it. As you're probably aware, some extra work would be needed before
applying this as it would break backwards compat as-is.

Ben, what are your thoughts on Theora vs WebM for Record? You
mentioned at one point that Theora developers were considering
focusing on the low-power arena (being displaced by WebM on the
high-power high-res front), is that direction being taken?

The standard quality videos are 160x120, XO-1.5 also offers 400x300 as
an option.
We do encoding to Theora and WebM on-the-fly (with gstreamer buffers
so it doesn't matter if it's not real time, but it needs to keep up to
avoid exhausting the buffer).
So encoding speed is quite a big deal - Jon, do you have any
comparitive numbers?


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