Re: [Bulk] Re: [CinCVS] help converting .ogg to .mpg

[Christian Einfeldt]

Hi,

Thanks Michael Eric for this nicely detailed reply!

On 8/21/07, Michael Eric Menk <[EMAIL PROTECTED]> wrote:
>
> Christian Einfeldt wrote:
> > hi
> >
> > Thanks for this suggestion!  But a few questions:
> >
> > On 8/20/07, *Aaron Newcomb* <[EMAIL PROTECTED]
> > > wrote:
> >
> > ffmpeg -i file.ogg file.mp3
> >
> >
> > Why did you leave out -o ?  For example, why not:
> >
> > ffmpeg -i flie.ogg -o file.mpg?
> >
> Becouse thats how ffmpeg works.
> > Also, someone else suggested that I do this:
> >
> > ffmpeg -i mansour.ogg -target pal-dvd mansour.mpg
> >
> This will give  full frame DVD. The source is though normally not a full
> frame.
>
> Consider.
>
> ffmpeg -i file.ogg -target pal-dvd -s 352x288 file.mpg
> ffmpeg -i file.ogg -target pal-dvd -s 352x576 -aspect 16:9 file.mpg
>
> Remember that the ITU-Rec 601 spesifies that the viewable screen is 702
> px wide. So the 4:3 og 16:9 is on pal 702x576. Consider therefor croping
> the source on the side, if there are black lines. This will give you
> better compression.
>
> ffmpeg -i file.ogg -target pal-dvd -cropleft 8 -cropright 8 -s 704x576
> -qmin 6 file.mpg
> ffmpeg -i file.ogg -target ntsc-dvd -cropleft 8 -cropright 8 -s 704x480
> -qmin 6 file.mpg
>
> The qmin prevents unnecessary runaway bandwidth usage.  (goes in to VBR
> when q=6, prevents padding, 6 is a LOW number)
>
> > Again, I am noticing that there is no -o here.  Why is that?  Also, I
> > am in the US, and I am primarily interested in distributing this film
> > via the Internet Archive and YouTube.  I guess that we could re-render
> > for PAL and NTSC later.
> You should render what the source is closest to. If it's from a NTSC
> source (eg  320x240,15fps), use NTSC.
>
> > Thanks again everyone for the suggestions!
> :-)
> --
> Mike Menk
>
> ___
> Cinelerra mailing list
> Cinelerra@skolelinux.no
> https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
>



-- 
Christian Einfeldt,
Producer, The Digital Tipping Point

Re: [Bulk] Re: [CinCVS] help converting .ogg to .mpg

[Michael Eric Menk]

Christian Einfeldt wrote:

hi

Thanks for this suggestion!  But a few questions:

On 8/20/07, *Aaron Newcomb* <[EMAIL PROTECTED] 
> wrote:


ffmpeg -i file.ogg file.mp3


Why did you leave out -o ?  For example, why not:

ffmpeg -i flie.ogg -o file.mpg?


Becouse thats how ffmpeg works.

Also, someone else suggested that I do this:

ffmpeg -i mansour.ogg -target pal-dvd mansour.mpg

This will give  full frame DVD. The source is though normally not a full 
frame.


Consider.

ffmpeg -i file.ogg -target pal-dvd -s 352x288 file.mpg
ffmpeg -i file.ogg -target pal-dvd -s 352x576 -aspect 16:9 file.mpg

Remember that the ITU-Rec 601 spesifies that the viewable screen is 702 
px wide. So the 4:3 og 16:9 is on pal 702x576. Consider therefor croping 
the source on the side, if there are black lines. This will give you 
better compression.


ffmpeg -i file.ogg -target pal-dvd -cropleft 8 -cropright 8 -s 704x576 
-qmin 6 file.mpg
ffmpeg -i file.ogg -target ntsc-dvd -cropleft 8 -cropright 8 -s 704x480 
-qmin 6 file.mpg


The qmin prevents unnecessary runaway bandwidth usage.  (goes in to VBR 
when q=6, prevents padding, 6 is a LOW number)


Again, I am noticing that there is no -o here.  Why is that?  Also, I 
am in the US, and I am primarily interested in distributing this film 
via the Internet Archive and YouTube.  I guess that we could re-render 
for PAL and NTSC later.
You should render what the source is closest to. If it's from a NTSC 
source (eg  320x240,15fps), use NTSC.



Thanks again everyone for the suggestions!

:-)
--
Mike Menk

___
Cinelerra mailing list
Cinelerra@skolelinux.no
https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra