[FFmpeg-user] mp4 settings

HallMarc Websites marc at hallmarcwebsites.com
Fri Jul 15 01:46:08 CEST 2011


> > ffmpeg -i INPUT_FILE -f mp4 -vcodec libx264 -r 25 -b 864k -acodec
> > libfaac -s
> > 480x320 -aspect 3:2 -qscale 1 -ac 2 -ar 44100 -ab 96k -async 1
> > OUTPUT_FILE.mp4
> 
> I would give you several recommendadtions for this command, but I'm not
> totally sure what you're trying to do. I assume you want to take a variety
of
> inputs and resize them all to be 480 pixels wide while keeping the aspect
> ratio, and then playing these outputs on your web site with a Flash player
> such as JW Player or Flowplayer.
> 
> What distro/OS/system are you using? Can you show the output of
> "ffmpeg"?
CentOS LAMP 
I could put something together...
I guess I was kind of expecting someone to be able to look what I had
written for ffmpeg and compare it to what I was using as settings for
another program..
> 
> > These are the target settings I used with a Windows app called SUPERC:
> >
> >
> >
> > 1) Select output container = mp4
> >
> > 2) Select the output video codec = h/264/avc
> >
> > 3) Select the output audio codec = AAC LC
> >
> > 4) Video size = 480:320
> >
> > 5) Aspect = 3:2
> >
> > 6) Frame/Sec = 25
> >
> > 7) Bitrate kbps = 864
> >
> > 8) Options = Hi Quality, 48K Audio
> >
> > 9) Sample Freq = 44100
> >
> > 10) Channels = 2
> >
> > 11) Bitrate kbps = 96
> >
> >
> >
> > Make sure it is set for streaming
> >
> > When I use SUPER the file it outputs is playable on everything I have
> > thrown at it and I'm not getting the same result with my ffmpeg
> > settings. What am I doing wrong?
> 
> What is "everything"? Can you be more specific than "not getting the same
> result"?
Desktop - Windows - Chrome, IE (Back to 7), Safari, Opera, Firefox  
Mac OSX - Safari, Chrome, Firefox
Mobile devices - Andriod 2.1u1, 2.2.2, assuming 3x , webkit browser, Iphone
3 and 4, iPad 1 and 2
> 
> > Thanks
> >
> > Marc Hall
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