Cecil Westerhof via ffmpeg-user <ffmpeg-user@ffmpeg.org> writes:
> I have several of the following (simplified):
> drawtext=
> enable = 'between(t, 105, 115)':
> text = 'speaker':
> y = main_h - (text_h * 4),
> drawtext=
> enable = 'between(t, 105, 115)':
> text = 'subject':
> y = main_h - (text_h * 2.2),
>
> I have been carefully tweaking to get them on the correct place.
> But when I was satisfied and generated all eight places where I wanted
> to have them the placement of the speaker and subject text is on
> different heights. Sometimes one or the other is different, sometimes
> both and sometimes they are the same.
>
> Is this a bug, or am I doing something wrong?
As Michael Koch said:
The content of the variable "text_h" depends on which characters
you are printing.
So I changed:
drawtext=
enable = 'between(t, 105, 115)':
text = 'speaker':
y = main_h - (text_h * 4),
drawtext=
enable = 'between(t, 105, 115)':
text = 'subject':
y = main_h - (text_h * 2.2),
to:
drawtext=
enable = 'between(t, 105, 115)':
text = 'speaker':
y = main_h - 200,
drawtext=
enable = 'between(t, 105, 115)':
text = 'subject':
y = main_h - 140,
That gives satisfactory results. The only problem is when the font
size changes. Then I have to remember I need to change these two
values also. But I do not expect that to happen often, so I can live
with that.
--
Cecil Westerhof
Senior Software Engineer
LinkedIn: http://www.linkedin.com/in/cecilwesterhof
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