Hi Stephen, On Mon, Aug 04, 2014 at 23:48:19 -0700, Stephen Ho wrote: > > I was introduced to this wonderful program, but I find it very hard to use, > and the pdf document I paid $9.95 is not very helpful. can't find the man > page either.
You paid money for documentation????? > I did this command ffmpeg -i abc.mp4 -f hevc abc.avi got my file size > to 5% of the original, and the resolution is really bad and no sound. I believe HEVC support is quite experimental, but I may be wrong. > Then I did ffmpeg -i abc.mp4 -f h264 abc.avi and the file size is 45%, the > video resolution is great (like the input file), but still no sound. > > What did I do wrong? You didn't understand that the various codecs have default parameters, which may or may not suit your needs. You need to fine-tune them. Furthermore, not getting sound is not normal, so you need to show us the complete command line and the complete, _uncut_ console output of your ffmpeg command. > My purpose is to keep everything the same, resolution same, but use a > different compression engine to safe disk space..... (We don't know the parameters of your original file.) > anything I can read to get a better understand to the command line syntax? This is a good start: https://trac.ffmpeg.org/wiki/Encode/H.264 Moritz _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
