mp4 subtitle font size too small

trott · 27th December 2007, 00:12

Hi all,

I would like to use mp4 as a container format due to (any time now) standalone player support. However, when generating files (either through yamb or with command-line mp4box) containing subtitle text streams (ttxt) the resulting subtitles are always too small to read on-screen.
This is strange, since I explicitly tell mp4box to use sans-serif, 24-point as font (I understand the default is serif 18 pt).
Still, the resulting subtitles are much too small to read...difficult on pc, impossible on TV. I have verified this by extracting the ttxt file and checking with Notepad: indeed the font size is 24 points but no way is this what I see on-screen...
Is this normal? I get this result both with Haali's and Gabest's splitters...Does anybody know whether it's possible to embed the font in the mp4 file? According to the FAQ this should be possible but I haven't found how to.

27th December 2007, 00:12	#1 \| Link
trott Registered User Join Date: Feb 2002 Posts: 44	mp4 subtitle font size too small Hi all, I would like to use mp4 as a container format due to (any time now) standalone player support. However, when generating files (either through yamb or with command-line mp4box) containing subtitle text streams (ttxt) the resulting subtitles are always too small to read on-screen. This is strange, since I explicitly tell mp4box to use sans-serif, 24-point as font (I understand the default is serif 18 pt). Still, the resulting subtitles are much too small to read...difficult on pc, impossible on TV. I have verified this by extracting the ttxt file and checking with Notepad: indeed the font size is 24 points but no way is this what I see on-screen... Is this normal? I get this result both with Haali's and Gabest's splitters...Does anybody know whether it's possible to embed the font in the mp4 file? According to the FAQ this should be possible but I haven't found how to.