W3C home > Mailing lists > Public > public-media-capture@w3.org > February 2014

Re: Constraints and MediaRecorder

From: Robert O'Callahan <robert@ocallahan.org>
Date: Tue, 4 Feb 2014 12:12:39 +1300
Message-ID: <CAOp6jLYy+SO85Y=X7TrKMYW1aGP0uoi5RQ3b_2GBzwpiJd4GAQ@mail.gmail.com>
To: Cullen Jennings <fluffy@iii.ca>
Cc: Jan-Ivar Bruaroey <jib@mozilla.com>, Martin Thomson <martin.thomson@gmail.com>, Harald Tveit Alvestrand <harald@alvestrand.no>, "public-media-capture@w3.org" <public-media-capture@w3.org>
On Tue, Feb 4, 2014 at 12:00 PM, Cullen Jennings <fluffy@iii.ca> wrote:

> On Feb 3, 2014, at 3:54 PM, Robert O'Callahan <robert@ocallahan.org>
> wrote:
> > On Tue, Feb 4, 2014 at 11:49 AM, Cullen Jennings <fluffy@iii.ca> wrote:
> > So help me understand what the code would look like - could you give a
> rough sketch of what the code would be to get 4x3 aspect ratio and 15 fps.
> >
> > How about a MediaRecoder example instead :-).
> Uh, that is a MediaRecorder use case …

OK. What does it mean to request a MediaRecorder with 4x3 aspect ratio?
Does that mean that video frames with a different aspect ratio get
squashed/stretched to that aspect ratio? What is a use-case for that?

And when you request a MediaRecorder with 15fps, are you saying that video
tracks with a different FPS should be downsampled in the time domain to get
15fps if they're running > 15fps?

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Received on Monday, 3 February 2014 23:13:06 UTC

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