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Re: [TEKNIK] Rotation af video



On Thu, 21 Jul 2011 11:56:20 +0200
Doc Nielsen <sslug@sslug> wrote:

> 2011/7/21 Henrik Pedersen <sslug@sslug>:
> > Doc Nielsen wrote:
> >> Prøv det her
> >> ffmpeg -i Sebastian_Raw.3gp -vf "transpose=1" Sebastian_New.mp4
> 
> > Så kaster den følgende op i ansigtet på mig.
> > Jeg hæfter mig mest ved sidste linie.
> 
> > ffmpeg -i VID_20110708_192555.3gp -vf transpose=1 Seb_1.mp4
> > FFmpeg version 0.6-4:0.6-2ubuntu6.1, Copyright (c) 2000-2010
> > the FFmpeg developers
> >  built on Mar 31 2011 18:42:12 with gcc 4.4.5
> 
> > Unrecognized option 'vf'
> 
> Orv, ubuntus version af ffmpeg er ret så gammel. 0.8 er ude.
> Nu er jeg glad for jeg har bygget min egen. Jeg kan anbefale dig
> at gøre det samme.
> 
> wget http://ffmpeg.org/releases/ffmpeg-0.8.tar.bz2
> tar jxf ffmpeg-0.8.tar.bz2
> cd ffmpeg*
> ./configure
> make
> make install
> 
> Her er de forskellige muligheder til -vf
> http://ffmpeg.org/ffmpeg-doc.html#SEC72
> Den du søger er http://ffmpeg.org/ffmpeg-doc.html#SEC93
> -Doc

Jeg har lige hentet og kompileret ovenstående version fordi
jeg er interesseret i at vide mere om ffmpeg og scriptet
video-redigering. ffmpeg installerer pænt i /usr/local, og den
fungerer (hurra!)

Jeg konstaterede imidlertid at den forholdsvis gamle ffmpeg
som ligger i /usr/bin, er kompileret med nogle options, der
ikke er default, bl.a. --enable-x11grab

Det betyder jo normalt ikke noget, men der kunne være funktioner,
som bliver brukne (holder op med "at virke") hvis man installerer
den nye version uden alle de gamle options. Har du oplevet det?


(Min distro er en ca. 3 år gammel installation ScientificLinux-5.x.
med mange, men ikke alle opdateringer. Jeg erstatter den snart
med en ny SL-6.1. Jeg har også en Mint-11 der også bruger en
forældet ffmpeg og der kompilerer jeg også en ny ffmpeg - jeg vil
prøve at lave screen-videoer.)


 
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