> On 11 Apr 2017, at 22:39, Mark Burton <[email protected]> wrote:
>
> One issue I am having is that as the numbers count the vertical position of
> the text changes ever so slightly, looks like a judder. I’m guessing this is
> due to the character size variations so the position of the text is
> recalculated by tiny fractions. Is there a way to allow for this in the x and
> y position? I’ve tried with max_glyph_h, but I think it would need to know
> the height of all characters to come as it doesn’t make any difference.
OK, I added "-ascent” to the y coordinate and that fixed the text juddering.
Here is the final filter:
drawtext=fontsize=60:fontcolor=white:text='%{eif\:(n+0)/16\:d}+%{eif\:mod((n+0),16)\:d\:02d}':x=200:y=75-ascent
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