Wrong vertical alignment in drawtext

[Michael Koch]

It's impossible to print several strings with drawtext in the same line. The vertical alignment depends on which characters are in the string. Can be reproduced as follows, case 1 without using "text_h":

ffmpeg -f lavfi -i color=yellow -lavfi drawtext=text='a_':x=20:y=50,drawtext=text='_gG':x=40:y=50,drawtext=text='':x=60:y=50 -frames 1 -y out1.png

Case 2 with "text_h" subtracted:

ffmpeg -f lavfi -i color=yellow -lavfi drawtext=text='a_':x=20:y=50-text_h,drawtext=text='_gG':x=40:y=50-text_h,drawtext=text='':x=60:y=50-text_h -frames 1 -y out2.png

In both cases the vertical alignment of the strings is wrong.

[Michael Koch]

The second string contains two accents or two "" characters. These characters are accepted in the command line, but are invisible here on TRAC.

[Michael Koch]

I found a simple solution:
Replace y=50-text_h by y=50-ascent
This seems to work for all characters.