[FFmpeg-user] converting to non HD avi with ffmpeg

[Kevin Wilson]

Hi,

The command I am used in the past (which Andy suggested, see below) does
not work with ffmpeg on Fedora 20, with ffmpeg-2.1.1-1. I am trying to
convert an mp4 file to a non HD mpeg file. It *must* be non-HD since I want
to play it on a non-HD DVD player
I am getting various errors on various flags.

The command I am using is (ubunutuArm.mp4 is an HD video file):
ffmpeg -i ubunutuArm.mp4 -target ntsc-dvd -bf 2 -flags2 ivlc -dc 10 -b
8000000 -maxrate 9000000 -bufsize 224kB -acodec mp2 -ac 2 -ab 128000 -vf
scale=720:480 ubunutuArmNonHD.mpg

And it says an error about ivlc (and vlc is installed). Googling for that,
I saw some suggestion to try -flags2 intra_vlc -non_linear_quant; I am not
sure it is right, but I tried it, and then it says and error about -dc 10;
I tried omitting -dc 10 and then it said an error about "Unable to parse
option value "-b"". and so on

I would appreciate if someone can tell what should be the command to
convert
an mp4 to a non HD file with this new ffmpeg application.

Regards,
Kevin



On Thu, Sep 13, 2012 at 9:13 PM, Kevin Wilson <wkevils at gmail.com> wrote:

> Andy,
> This worked !
>
> Thanxs.
>
> On Thu, Sep 13, 2012 at 7:38 AM, Andy Civil <andycivil at gmail.com> wrote:
> > On 2012-09-12 10:18 PM, Kevin Wilson wrote:
> >>
> >> Hi, Lou.
> >>
> >> Thanks!
> >>
> >> I have tried:
> >>   ffmpeg -i ubunutuArm.webm  -filter:v scale=640:-1 -q:v 3
> >> ubunutuArmNonHD.avi
> >>
> >
> > I have made a DVD file in the past, can you try this? However, I notice
> that
> > some syntax has changed in the last months, forgive me if some of these
> > parameters need their syntax updating...
> >
> > ffmpeg -i ubunutuArm.webm -target ntsc-dvd -bf 2 -flags2 ivlc -dc 10 -b
> > 8000000 -maxrate 9000000 -bufsize 224kB -acodec mp2 -ac 2 -ab 128000 -vf
> > scale=720:480 ubunutuArmNonHD.mpg
> >
> > --
> > Andy
> >
> > _______________________________________________
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> > ffmpeg-user at ffmpeg.org
> > http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>