[FFmpeg-user] Best way to scale interlaced video

[nilesh]

Thanks

The code is for video files and i need code for audio files. Please give
reference for audio files...


On 5 March 2014 03:56, Carl Eugen Hoyos [via FFmpeg-users] <
ml-node+s933282n4664190h30 at n4.nabble.com> wrote:

> Massimo Battistel <battistel <at> gmail.com> writes:
>
> > I've removed padding filter and audio track. The issue
> > is still reproducible.
> >
> > You can download HD reference sample from here:
> > http://www.datafilehost.com/d/f8185302
> >
> > This is the command line for solution #1:
> > ffmpeg -i sample1080i.mp4 -vcodec rawvideo
> > -vf scale=w=720:h=432:interl=1 -an out_interl.avi
>
> The artefacts you see are the direct effect of
> using "scale=interl=1". In theory, the following
> command would be a workaround (detecting if a
> frame is interlaced or not), but the detection
> apparently does not detect still frames as
> "progressive" but as "undetermined".
> Changing the behaviour of idet might be possible,
> I don't know for sure.
> $ ffmpeg -i sample1080i.mp4 -vf idet,scale=720:432:interl=-1
> -qscale 2 out.avi
>
> Carl Eugen
>
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