On Fri, Oct 07, 2016 at 13:07:53 +0200, Carl Eugen Hoyos wrote: > 2016-10-06 17:34 GMT+02:00 Moritz Barsnick <[email protected]>: > > $ ffmpeg -r 25 -f concat -i concatscript.txt -c:v copy output.mxf > > This scales very badly, no?
It's just a proof of concept. :) It scales nicely (linearly? or is seeking more expensive the deeper you seek?), and works assuming you have CFR input and output, and you know those rates, and ... , and ... ;-) It "scales" better then writing every frame to disk and selecting every second one by symlinking. That's 180000 intermediate files plus 90000 symlinks for one hour of video. Then I'd rather have ffmpeg seek into the input file 90000 times. But both basically suck. I still prefer that "select" bitstream filter. ;-) Moritz _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
