[FFmpeg-user] Fwd: coding video for some old Sony

Erik Dobák erik.dobak at gmail.com
Thu Sep 5 20:02:33 EEST 2019


On Thu, 5 Sep 2019 at 00:40, Michael Castellon <castellonmichael at gmail.com>
wrote:

> For audio, please try 128k standard.
> ffmpeg -strict experimental -i input.mp4 -vcodec libxvid -threads 8 -s
> 624x352 -g 400 -dia_size 514 -bf 1 -b:v 1200k -trellis 2 -aspect 1.860
> -level 5.1 -r 25 -acodec libmp3lame output.mp4
> look
>
> On Wed, Sep 4, 2019 at 4:06 PM Kieran O Leary <kieran.o.leary at gmail.com>
> wrote:
>
> > On Wed, 4 Sep 2019, 20:19 Erik Dobák, <erik.dobak at gmail.com> wrote:
> >
> > > On Tue, 3 Sep 2019 at 18:01, Michael Castellon <
> > castellonmichael at gmail.com
> > > >
> > > wrote:
> > >
> > > > maybe bitrate,
> > > > please try a short video so you don't get tired.
> > > > this scale for old tv (crt), 640x480
> > > > ffmpeg -strict experimental -i input.mp4 -vcodec libxvid -threads 8
> -s
> > > > 624x352 -g 400 -dia_size 514 -bf 1 -b:v 1200k -trellis 2 -aspect
> 1.860
> > > > -level 5.1 -r 25 -acodec libmp3lame -ab 128k -ac 2 -async 1 -y
> > output.avi
> > > > or,
> > > > ffmpeg -strict experimental -i input.mp4 -vcodec libxvid -threads 3
> -s
> > > > 624x352 -g 400 -dia_size 514 -bf 1 -b:v 816k -trellis 2 -aspect 1.860
> > > > -level 5.1 -r 25 -acodec libmp3lame -ab 128k -ac 2 -async 1 -y
> > output.mp4
> > > >
> > > > look..
> > > >
> > > >
> > > > On Sun, Sep 1, 2019 at 12:33 PM Erik Dobák <erik.dobak at gmail.com>
> > wrote:
> > > >
> > > > > the catch22 original did not work. all my attempts to convert it
> > > resulted
> > > > > also in a non working video.
> > > > > E
> > > > >
> > > > > On Sun, 1 Sep 2019 at 19:22, Kieran O Leary <
> > kieran.o.leary at gmail.com>
> > > > > wrote:
> > > > >
> > > > > > Did that catch-22 example you posted work or not? You never
> > > specified..
> > > > > >
> > > > > > K
> > > > > > _______________________________________________
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> > >
> > > ok here i can report some sort of success:
> > >
> > > i created these 3 videos according to your hints:
> > >
> > > catch22bv1200.avi
> > > catch22bv1200.mp4
> > > catch22bv816.mp4
> > >
> > > the mp4 play fine the video (no sound but i can care about this later)
> > > but the catch22bv1200.avi does not play at all despite the fact that i
> > just
> > > changed the extension of the output file in the command you have sent
> me.
> > >
> >
> > Do both play fine? Please post full command line and terminal output of
> > this successful file. And the same for the avi that does not work.
> >
> > Best,
> >
> > Kieran
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ad 128k: will try. not sure why -acodec libmp3lame -q:a 2 does not work as
it worked before.

E


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