Subtitle display

[Sky Qt]

Hi Brendan,

  Thanks for the reply. I definitely think it is the xpad and ypad
properties of the textoverlay object that control the line spacing. But I
haven't come across any examples of how to get a handle on the textoverlay
object and change its properties.

Here is the link to the textoverlay docs:
http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-plugins/html/gst-plugins-base-plugins-textoverlay.html

do let me know if that is right and it will be great if you can point me to
an example.

Sky.


On Mon, Nov 4, 2013 at 9:17 PM, Brendan Long <self at brendanlong.com> wrote:

>  On 11/04/2013 03:24 AM, Sky Qt wrote:
>
> I need to reduce the lines spacing in the subtitle display. I have tried
> to look into the gstreamer api but could not locate any such api.
> Apparently VLC provides such control. Can anyone help find the api or point
> me to any resource that will help me?
>
> gst-inspect-1.0 subtitleoverlay shows:
>
>   font-desc           : Pango font description of font to be used for
> subtitle rendering
>                         flags: readable, writable
>                         String. Default: null
>
> A search for "pango font description" gives this documentation<https://developer.gnome.org/pango/stable/pango-Fonts.html>,
> but unfortunately that only seems to control the font family, size, and
> type.
>
> A search for "pango line spacing" gives the documentation for Pango
> Layouts<https://developer.gnome.org/pango/stable/pango-Layout-Objects.html#PangoLayout-struct>,
> which seems to be what you want. We could presumably add this to GStreamer,
> but it would be a bit more complicated since there's no *_from_string
> function.
>
> Note: I think the actual element of interest is "textrender" or
> 'textoverlay" in gst-plugins-base/ext/pango.
>
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>
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