[vlc-devel] Re: vout zoom patch

Markus Kern markus-kern at gmx.net
Sun Feb 22 01:24:36 CET 2004

A diff would also be useful I guess ;-)

On Sunday, February 22, 2004, 1:18:43 AM Markus Kern <markus-kern at gmx.net> wrote:

> Hello,

> I have written a small patch for VLC which allows video output to be
> zoomed during playback.

> Currently if p_vout->b_scale is off video output will be shown at the
> center of the display window and at the fixed size of
> p_vout->render.i_width/i_height.

> This patch adds a f_zoom variable to vout_thread_t which is initially
> set by the already present "zoom" key in video_output.c.
> f_zoom is used in vout_PlacePicture to calculate the picture size if
> b_scale is off.

> This allows interface plugins to zoom the video output during playback
> by setting p_vout->f_zoom and p_vout->i_changes |= VOUT_SIZE_CHANGE.

> I have only used VLC for a few days so someone familiar with its inner
> workings should check that this patch doesn't collide with any other
> functionality. It has only been tested on windows with the directx
> vout plugin.

> It would be great if you added this patch to your source tree.

> - Markus Kern
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