How many source images do you have, and should the output definitely be 25fps?also why not use something like https://amiaopensource.github.io/ffmprovisr/#images_2_video To process an image sequence rather than concat? Unless your images are appended by datetime rather than sequential numbers? _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
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