Moritz & Steve, Thanks for your ffmpeg commands. On my MacBook Pro Retina 15", I ran them (took less than 30 secs or so) and then viewed the resulting files in both VLC & QuickTime.
Both of the resulting videos did *exactly* what I was trying to get rid of: a second or so of real-time action at the beginning, then a long super slow-motion middle, then a second or so of real-time action at the end. I just want the whole video to be in real time. Size is of secondary concern. Interestingly, QuickTime actually *shows *where the three sections are with two delimiters -- I wish I could show you the screen shot, but I can't get a screen shot of the QuickTime controls overlay (it keeps disappearing). Even more interestingly, VLC plays some of the videos choppily but in real time with no slow motion; QuickTime shows the different frame rates, but lets me speed things up to real-time. I admin to being at a bit of a loss to determine why VLC is in choppy real-time & QuickTime always honors the recorded frame rates. Any more suggestions/sample commands? Will I need to cut the real-time portions out, then convert the middle slo-mo to match the real-time portions' frame rates, then concatenate the three parts all back together? If so, how do I (1) find the 2 spots to cut at, (2) actually cut the file into 3 parts, (3) convert the slo-mo to real-time, then (4) concatenate them all back together again? -matthew PS: FWIW, with a 10.7 Mb original video, Steve's command resulted in a 13.7 Mb video, Moritz's, 9.3 Mb. On Tue, Jan 5, 2016 at 8:52 PM, Steve Boyer <[email protected]> wrote: > On Tue, Jan 5, 2016 at 6:56 PM, Andy Furniss <[email protected]> wrote: > > Matthew Adams wrote: > >> > >> On Tue, Jan 5, 2016 at 3:07 PM, Moritz Barsnick <[email protected]> > >> wrote: > >> > >>> Anyway, it should be possible to convert those to something sane. > >>> As Carl Eugen mentions: What's your goal? > >>> > >> > >> My goal is to convert these videos a fixed, relatively standard (30 > >> fps? 60 fps?) frame rate while retaining the highest image quality > >> possible so that pretty much any playback hardware & software can > >> play them normally. Bonus for preserving audio as well in the > >> converted videos. > > > > > > Well I am impressed that a phone can record 240fps. > > > > Personally I would go for 60 fps, fast paced stuff looks terrible @30fps. > > > > I suppose it depends on what you intend to play it on. > > > > If the quality is too low for you you can always get higher bitrates > > with eg. -crf 20. > > > > FWIW testing the master direct mpv by default does a good job playing it > > on my PC. > > > > _______________________________________________ > > ffmpeg-user mailing list > > [email protected] > > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > Tested on the windows 10 side of my laptop with the command: > "C:\Users\Steve\Desktop\ffmpeg-20160105-git-68eb208-win64-static\bin>ffmpeg > -i C:\Users\Steve\Desktop\Jan22016-150PM-b6cs7K.mov -vf fps=fps=30 > -c:a copy -vcodec libx264 -crf 20 -preset slow asdf.mp4" > > and it spits out a fixed frame rate 30fps video and looks purdy. VLC > plays it no problems. This will preserve the audio feed exactly, and > only re-encodes the video using x264 at a pretty decent quality. Final > size is 9 MB. > > Steve > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > -- mailto:[email protected] <[email protected]> skype:matthewadams12 googletalk:[email protected] http://matthewadams.me http://www.linkedin.com/in/matthewadams _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
