[FFmpeg-user] problem with -txt_top

[Peter Münster]

Hi,

I would like to create an mp4-file with subtitles from a ts-file.
When I specify "-txt_top 0" (the default value), the subtitles are in
the middle of the video, but I would like them to appear at the bottom.
When I specify "-txt_top 10", or anything else > 0, the subtitles
disappear completely. How could I resolve this issue please?

Please find here the example files, ffmpeg command lines and outputs:
http://pmrb.free.fr/tmp/ffmpeg/

TIA for any help,
-- 
           Peter