[FFmpeg-user] Any better documentation?

Stephen Ho stephenho88 at gmail.com
Tue Aug 5 17:29:51 CEST 2014

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
turns out it is somewhat in between.

I am using Window with the command window. I do not use linux etc. but I
have some unix commands in dos command window. man ffmpeg does not come up
with man page, maybe my manpath has not set up. That is OK, I just want it
to do simple thing.

Is there a GNU version of ffmpeg?

  *Stephen Ho *
510-364-8941 (c)  StephenHo88 at gmail.com
925-398-6808 x183 (vm) StephenHoRealty.com <http://www.StephenHoRealty.com>

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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