[FFmpeg-user] Any better documentation?
gerion.entrup at t-online.de
Tue Aug 5 18:58:05 CEST 2014
Am Dienstag 05 August 2014, 08:29:51 schrieb Stephen Ho:
> Thanks everyone, I will be reading more about your suggestions. I also
> found this http://manpages.ubuntu.com/manpages/oneiric/man1/ffmpeg.1.html
> to be better than what I paid for the pdf book, as you can see I am the
> very beginner, and thought the book is not a man page but some tutorial. It
Ubuntu ships a very old manpage. Many things have changed since version 0.7.2.
Maybe you take a look at:
> On Tue, Aug 5, 2014 at 2:01 AM, James Darnley <james.darnley at gmail.com>
> > On 2014-08-05 08:48, Stephen Ho wrote:
> > > 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.
> > >
> > > 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 do you expect to happen when you ask ffmpeg to create a raw video
> > stream? -f controls the file format not the video codec.
> > If you can't handle ffmpeg's own help, accessible through -h, try
> > reading them online here: http://ffmpeg.org/documentation.html
> > My suggestion for a good quality encode:
> > ffmpeg -i INPUT -vcodec libx264 -preset medium -crf 21 -threads 0 OUTPUT
> > I also wonder why you are wanting to re-encode an MP4 file. I doubt you
> > will make it that much smaller and keep decent quality seeing the rest
> > of your requirements.
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> > ffmpeg-user at ffmpeg.org
> > http://ffmpeg.org/mailman/listinfo/ffmpeg-user
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