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Here is another example: ffmpeg -i input.mkv -filter_complex "[0:V:0]setpts=25/24*PTS[vout];[0:a:0]asetrate=46080,aresample=resampler=soxr:osr=48k[aout]" -map "[vout]" -map "[aout]" -r:v 24/1 -vsync vfr output.mkvA new problem is introduced when you have subtitles. If the subtitle track has already been timestamped to match the PAL video, the subtitles will lose synchronization with the newly corrected video. This is especially troublesome with Forced Subtitles that are in their own track, like an srt embedded into an mkv file. If the track is forced subtitles you might find that editing the timestamps in the file by hand with a text editor your only remedy. This is less practical with a full line by line subtitle track. Additional software is required or a clever bash script involving regex.