To just add subtitles, you will want to make a simple AVS file containing the script lines you need. The following instructions assume that you are using VSFilter. This can be tricky due to some limitations of libass, but it is possible. To allow adding subtitles to the video stream, you have two options: you can use VSFilter (included with Aegisub, in the 'csri' folder), or you can use AssRender, which uses libass. Note that ScaleX and ScaleY values when used in force_style are a factor, not a percentage, so the accurate values would be 1,1 (not 100,100) in that case. Get Started Open-source BSD-style licenses. Aegisub makes it quick and easy to time subtitles to audio, and features many powerful tools for styling them, including a built-in real-time video preview. Refer to the example ASS file for accepted force_style options, but it will not allow you to style each letter or word individually as you can in Aegisub. Aegisub is a free, cross-platform open source tool for creating and modifying subtitles. ffmpeg -i input -vf "subtitles=subs.srt:force_style='Alignment=6,Fontsize=48,Outline=8'" output This should work with any format that the subtitles filter accepts. You can apply styling via the subtitles filter force_style option in ffmpeg. See the documentation for detailed instructions.įormat: Name, Fontname, Fontsize, Primar圜olour, Secondar圜olour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding You can style each letter or word individually, or apply the desired styling to all subtitles.
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