Sometimes adding this filter have a side effect of breaking encoding when input file has multiple audio streams and some of those may have problems in this case selecting one (or more) of the audio streams should fix the problem:įfmpeg -i input.ts -filter_complex "overlay" -map "" -map 0:a:0 output. See also the official documentation search for "hardcode". If you have multiple subtitle streams, you can select which one to use by replacing with to select the first subtitle stream or to select the second subtitle stream, and so on. Example of an MKV with dvdsub subtitles in a separate stream:įfmpeg -i input.mkv -filter_complex "overlay" -map "" -map 0:a output.mkv For instance, dvdsub is a type of picture-based overlay subtitles. You can burn "picture-based" subtitles into a movie as well, by using the overlay video filter to overlay the images. Windows users will have to setup font paths to get libass to work If your subtitle is in SubRip, MicroDVD or any other supported text subtitles, you have to convert it to ASS before using this filter: See the ass video filter documentation for more details.įfmpeg -i video.avi -vf "ass=subtitle.ass" out.avi At the time of the start of the project, many other programs that supported the Advanced Substation Alpha format lacked (and in many cases, still lack development on several competing programs have since been dropped for various reasons completely unrelated to Aegisub) many. On the other hand, it is limited to ASS (Advanced Substation Alpha) subtitles files. Aegisub was originally created as a tool to make typesetting, particularly in anime fansubs, a less painful experience. This filter requires ffmpeg to be compiled with -enable-libass. Same as the subtitles filter, except that it doesn’t require libavcodec and libavformat to work. For example, if you wish to start both the output video and subtitles to start 5 minutes into the input file, then you can use a command line this:įfmpeg -ss 5:00.00 -copyts -i video.avi -ss 5:00.00 -vf subtitles=subtitles.srt out.avi Look under the Automation menu in Aegisub. For now we’ll just concentrate on one of them. Finding Karaoke Templater You can run Karaoke Templater in two different ways. We’ll start out with something simple and then continue on to more advanced effects throughout the series. If you want the burned-in subtitles to start at the same timestamp as the video, you will need to copy the timestamps to the output with -copyts, and then additionally seek in output again with the same values that were used for the input. Welcome to the first tutorial in using Karaoke Templater to create karaoke effects. Note that the subtitles video filter opens the file separately, so if you are also Seeking in the same step, then the subtitles will start at the beginning of the subtitle file. If the subtitle is embedded in the container video.mkv, you can do this:įfmpeg -i video.mkv -vf subtitles=video.mkv out.avi If the subtitle is a separate file called subtitle.srt, you can use this command:įfmpeg -i video.avi -vf subtitles=subtitle.srt out.avi This tutorial will teach you how to load a song into Aegisub, how to enter the words for the song and how to add time-codes to the words to synchronise them with the song. See the subtitles video filter documentation for more details. You can burn text subtitles (hardsubs) with one of two filters: subtitles or ass.ĭraw subtitles on top of input video using the libass library.
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