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

Re: Image Capture spec: new version

From: Johannes Odland <johannes.odland@gmail.com>
Date: Wed, 29 Oct 2014 07:15:20 +0100
Message-ID: <CAOjzmC3iJ4aAOAcZaOkSsq0c_iR=b8iVo8xBwWCSbpD-DPJ4-w@mail.gmail.com>
To: Martin Thomson <martin.thomson@gmail.com>
Cc: "Robert O'Callahan" <robert@ocallahan.org>, "Mandyam, Giridhar" <mandyam@quicinc.com>, "public-media-capture@w3.org" <public-media-capture@w3.org>
On Tue, Oct 28, 2014 at 10:51 PM, Martin Thomson <martin.thomson@gmail.com>
wrote:

> On 28 October 2014 03:50, Robert O'Callahan <robert@ocallahan.org> wrote:
> > However, it would make sense to provide an API to convert an ImageBitmap
> to
> > a Blob with a given type, asynchronously of course, without going
> through a
> > canvas, since that can be lower overhead than going through a canvas. I
> > think we should get that added to HTML and then use ImageBitmap here.
>
> I can get behind that plan.
>
>

Remember that the purpose of the grabFrame() is to be able to both analyse
and manipulate frames in the video feed.
ImageBitmap will not provide direct access to individual pixels. Neither
will converting the ImageBitmap to a blob. I suggest we stay with ImageData.
Received on Wednesday, 29 October 2014 06:15:48 UTC

This archive was generated by hypermail 2.3.1 : Tuesday, 6 January 2015 21:24:50 UTC