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I have a directory of 100 mp4 files. All are working well on my ipad but most of them do not have a working thumb.
I want to generate these thumbs with a command line command (on macosx) based on a frame of the movies (at second 30 for example).
Thank you in advance
ffmpegconsole output?ffmpeg -i works.mp4 -i notwork.mp4?