how to burn three .ass files at once

[yakov]

i have three .ass files (2 karaoke with effects and 1 subtitles) ,

i am using ffmpeg on linux server (ubuntu 14.04) and its works fine but i need to burn all of the subtitle and

i try to combine the scripts but it ruin the karaoke effects .

p.s i know that i can burn them three times but its takes too long and the finel file is too big .

ffmpeg -i ep17.mkv -c:v libx264   -preset veryslow    -vf ass=EP17.ass:shaping=complex   -c:a copy  -crf 22 -s 1280x720     's03 episode 05.mkv'

[mulvya]

What command did you use to burn it three times?

[yakov]

What command did you use to burn it three times?

ffmpeg -i ep17.mkv -c:v libx264   -preset veryslow    -vf ass=EP17.ass:shaping=complex   -c:a copy  -crf 22 -s 1280x720     's03 episode 05.mkv'

this code (with 2 more files) , i try to combine the scripts its running right now , maybe it will work this time , but i still want to know if there is a possibility to burn a few tracks of ass files in FFmpeg , thanks

[mulvya]

Still not clear. So, do you run this code twice more? If so, just chain them in one command.

ffmpeg -i ep17.mkv
-vf ass=EP17.ass:shaping=complex,ass=second.ass:shaping=complex,ass=third.ass:shaping=complex
-c:v libx264   -preset veryslow  -c:a copy  -crf 22 -s 1280x720   's03 episode 05.mkv'

[yakov]

Still not clear. So, do you run this code twice more? If so, just chain them in one command.

ffmpeg -i ep17.mkv
-vf ass=EP17.ass:shaping=complex,ass=second.ass:shaping=complex,ass=third.ass:shaping=complex
-c:v libx264   -preset veryslow  -c:a copy  -crf 22 -s 1280x720   's03 episode 05.mkv'

Thank you very much !