videoscale plugin

[qwerty-1]

Hi All,

I have a query regarding videoscale plugin. I need to know which technique videoscale plugin use to resize video and how does it differ from encoding process?

Thanks,
Uma

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[qwerty-1]

Any one please clear my doubt..

On Fri, Nov 18, 2011 at 11:53 AM, Umakant Goyal <[hidden email]> wrote:

Hi All,

I have a query regarding videoscale plugin. I need to know which technique videoscale plugin use to resize video and how does it differ from encoding process?

Thanks,
Uma

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[hidden email]
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[Josh Doe]

On Fri, Nov 18, 2011 at 1:23 AM, Umakant Goyal <[hidden email]> wrote:
> Hi All,
>
> I have a query regarding videoscale plugin. I need to know which technique
> videoscale plugin use to resize video and how does it differ from encoding
> process?

The documentation indicates it uses nearest neighbor, bilinear, 4-tap,
or Lanczos:
http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-plugins/html/gst-plugins-base-plugins-videoscale.html#GstVideoScaleMethod

The code can be seen here:
http://cgit.freedesktop.org/gstreamer/gst-plugins-base/tree/gst/videoscale

Resizing and encoding aren't related, except that both might reduce file size.

-Josh
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