ffmpeg convert mkv to mp4 but keep original sound track

For example, if your computer has a hiccup, and one frame saves out weird, first saving the image sequence allows you to only resave that one weird frame before rendering. The reason for this two-step process is that animation files can be really complex and really big, and this is the best way to allow you to keep control over the export process. It replaces Export Animation.įor rendering to an animated file format, Krita will first render to a PNG sequence and then use FFmpeg, which is really good at encoding into video files, to render that sequence to an animated file format.

map 0:a:0 - means, that you want to take first audio stream from input fileĪudio will be copied, video stream will be reencoded.Render animation allows you to render your animation to an image sequence. map '' - means, that you want to put into your output video processed by filter_complex stream (video + subtitles). :si=0 - means, that you want to take first subtitle stream from input file means, that you want to take first video stream from input file.

To burn-in subtitles you can read the link at the top of the message or find another subject here at the stackexchange.īasically you can burn-in subtitles from MKV to MP4 using this command ffmpeg -i input.mkv -filter_complex 'subtitles=input.mkv:si=0' `-map ''` -map 0:a:0 -c:a copy output.mp4 This command with '-map 0' will put all available tracks into the output file: ffmpeg -i input.mkv -map 0 -c:v libx264 -c:a aac -c:s mov_text output.mp4 You can can input ffmpeg 'myMovie.mkv' to look at the list of streams in the file. map 0:s:0 means, that you want to pick first subtitles track from first input file 'myMovie.mkv'. map 0:a:0 means, that you want to pick first audio track from first input file 'myMovie.mkv'. map 0:v:0 means, that you want to pick first video track from first input file 'myMovie.mkv'.

ffmpeg -i myMovie.mkv -c copy -map 0:v:0 -map 0:a:0 -map 0:s:0 myMovieMP4.mp4 You can find detailed answer on your question hereīasically you need to add '-map' parameter to your command.

Ffmpeg convert mkv to mp4 but keep original sound track