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Comment by j_s | Hacker News Reader

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j_s

Awesome!

Other video tools (besides ffmpeg):

https://www.mltframework.org/ (lightweight LGPL C99 perhaps similar to OP)

http://www.emmgunn.com/ (mac VIDEOtoolbox), https://subler.org/ (mac mp4)

https://sourceforge.net/projects/megui/ (windows, recommended for SD sources)

https://github.com/stax76/staxrip (windows, a better handbrake)

Further pointers to similar tools are appreciated! Grabbed several of these from this awesome discussion of a weak article on Handbrake: https://news.ycombinator.com/item?id=13492646 (Jan 2017, 59 comments)

PS. Also looking for pros/cons/alternatives re: print LUT http://juanmelara.com.au/print-film-emulation-luts-for-downl... and histogram equalization http://docs.opencv.org/3.1.0/d5/daf/tutorial_py_histogram_eq...

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Natron is worth a look as well: https://natron.fr

Mac/Linux, Python API, mostly usable docs, and the source is available.

Thanks for sharing all of these tools! Do you happen to know if any of these can write metadata to mp4 or mov files that will be recognized by Mac/iOS Photos?

I've been trying to write location, camera, date, etc. to encoded videos, but Photos won't recognize anything except files straight off an iPhone. The closest thing I've found is that ffmpeg can write Quicktime tags and the structure looks identical to me when I view it in exiftool, but Photos still doesn't respect it, so I assume there's some minute difference that breaks Photos' parsing.

I've used Atomic Parsley[1] and MP4Box[2] successfully for various MOV and MP4 related muxing and metadata handling before.

[1] http://atomicparsley.sourceforge.net [2] https://gpac.wp.imt.fr/mp4box/

Unfortunately I do not have any personal experience with your problem since I purposely avoid Apple Photos (perhaps helpful though not related: I rely on Google+ Photos as my free [lossy] offsite backup).

- Date/time? http://u88.n24.queensu.ca/exiftool/forum/index.php/topic,790... recommends https://github.com/HayoBaan/matchDateTime and/or

  exiftool -a -G -s -time:all [filename]

- Lat/long location? works for JPG, only recently for PNG http://u88.n24.queensu.ca/exiftool/forum/index.php/topic,844...

- camera? for Lightroom http://u88.n24.queensu.ca/exiftool/forum/index.php/topic,858...

Also take a look at https://github.com/Zulko/moviepy

I left this special-purpose tool out on my initial round-up, but anyone still paying attention might find a use for it:

https://github.com/slowmoVideo/slowmoVideo

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