[Libav-user] what -f psp does

[YIRAN LI]

So it's not like target which I know automatically apply resolution,
bitrate, framerate at least on DVD output. So with -f, you need to manually
supply all needed arguments.




2014-09-05 13:48 GMT+10:00 Geek.Song <ffmpeg at gmail.com>:

> On Fri, Sep 5, 2014 at 11:40 AM, YIRAN LI <mrfun.china at gmail.com> wrote:
> > Hi,
> >
> > I found in libavformat/movenc.h
> >
> > there's
> >
> > #define MODE_PSP 0x08 // example working PSP command line:
> > // ffmpeg -i testinput.avi -f psp -r 14.985 -s 320x240 -b 768 -ar 24000
> -ab
> > 32 M4V00001.MP4
> >
> > As I know, ffmpeg -f is used to force output format, but if we still
> need to
> > set frame rate, resolution, bit rate.etc when converting to a PSP
> compatible
> > mp4, what -f psp does for us?
>
> -f format specifies the output format, it would disable the automatic
> output format detection based on the suffix name.
>
> --
>
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