[FFmpeg-user] multiple outputs

[Francois Visagie]

> -----Original Message-----
> From: ffmpeg-user [mailto:ffmpeg-user-bounces at ffmpeg.org] On Behalf Of
> Moritz Barsnick
> Sent: 12 April 2016 12:14
> To: FFmpeg user discussions
> Subject: Re: [FFmpeg-user] multiple outputs
> 
> On Tue, Apr 12, 2016 at 08:29:10 +1000, Nisar Ahmed wrote:
> > Does specifying file format means that ffmpeg will pick the
> > appropriate encoding itself
> 
> ffmpeg chooses default codecs, based on the selected format and on which
> codecs it has support for.
> 
> > or do we have to specify explicitly for each output,
> 
> If ffmpeg's choice does not please you, you need to specify it.
> 
> > currently I am only specifying it once.
> 
> Please note that your choice of codec will only apply to *one* output file, the
> other will use defaults again. Check ffmpeg's syntax description and how to
> create multiple files.

Do output specifications not apply to all following files?

But your advice of checking the documentation stands, I clearly haven't in a while ;-).

> 
> > Following is the illustration of my ffmpeg command.
> >
> > ffmpeg -i input -vcodec x264 -acodec libmp3lame output1.mp4
> > output2.mp3
> >
> > I am thinking of changing it to
> >
> > ffmpeg -i input -vcodec x264 -acodec aac output1.mp4 output.mp3
> 
> That won't change anything for output*.mp3, because you are not specifying
> any output options for it.
> 
> You are a bit unspecific about what you are trying to (exactly) achieve and
> what is going wrong. Adding the complete, uncut console output would also
> help.
> 
> Cheers,
> Moritz
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