FFmpeg Subtitle not taking sub.ass file path

[shahid109]

Hi Everyone

I am trying this..

string srt = @"C\:/Users/Toy/AppData/Roaming/TeknikForce/Live Caster Pro/sub.ass";
Console.Write(startInfo.FileName);
startInfo.Arguments = @"-re -i file:" + "\"" + vid + "\"" + " -vf ass=" + "\"" + srt + "\"" + " -vcodec libx264 -crf 23 -c:a copy " + "\"" + output + "\"" + "";

but it did not work???

Please help me..!

[sneaker]

https://ffmpeg.org/ffmpeg-filters.html#Notes-on-filtergraph-escaping

[redwudz]

shahid109, , please do not double post. I've deleted the other duplicate post. If you want to move a topic to another forum, PM a Mod.

Moderator redwudz

[Budman1]

What language is that? It doesn't look like command line. "C"?

[JVRaines]

C#

[raffriff42]

Please follow sneaker's link. Learn how to do it from a normal ffmpeg command line. Then translate that command into C# or whatever.

You need to tell people what language you are using if you want help with it. Also, if you want help, an exact error message is needed -- "didn't work" does not work.

My C# is super rusty, but it looks like you're trying to escape a literal (@"...") string:

msdn.microsoft.com: String literals (C#)

string e = "Joe said \"Hello\" to me";      // Joe said "Hello" to me
string f = @"Joe said ""Hello"" to me";     // Joe said "Hello" to me
string g = "\\\\server\\share\\file.txt";   // \\server\share\file.txt
string h = @"\\server\share\file.txt";      // \\server\share\file.txt

[JVRaines]

"e" is not a valid argument to the -r parameter. Also, you have to specify an output filename, not a path.

[Budman1]

Just an added 2 cents to the excellent advise above... What you want to end up with is :

ffmpeg -i "C:\Path To Video\Video.mp4" -ss 00:00:00.000 -to 99:00:00.000 -vf "ass='C\:\\Path\\To\\Subtitle\\srt2.ass'",scale=640:360,pad=640:360:0:0 -vcodec libx264 -crf 22 -r 30.000  -acodec aac -ac 2 -ar 44.1k -b:a 128k  "C:\Path\To\Output\New_Video.mp4"

Take out what you do not need in the ffmpeg script or use as you wish. I put most in to cover all bases.
Notice the double quotes around "ass=..." and the single quotes around the actual ASS path in case of space as mention above. Also the "\" escape in front of all the subtitle path special characters. Quirk of FFMPEG.

I too am VERY rusty on C# but it works with this format using Visual Basic. Verification shown below.