[Sussex] convert ogg video to flash?

[Alan Pope]

Hi Nic,

On Sun, 2007-07-15 at 11:39 +0100, Nic James Ferrier wrote:
> I'm using the excellent istanbul to create screencasts and kino to
> edit them.
> 

FYI: I use xvidcap which can capture direct to MPEG2 which can be edited
directly in avidemux and other editors. XVidCap is considerably more
flexible than Istanbul IMO. 

> Trouble is kino and istanbul deal in ogg and SMIL.
> 
> Anybody know free tools to to convert either of those into a flash
> movie?
> 

ffmpeg.

Here's what I do.

# pass one, 600k bitrate
ffmpeg -y -i foo.mpeg -vcodec flv  \
    -s 1024x768 -acodec mp3 -b 600k -r 10  \
    -pass 1 -ar 22050 -ab 64 -f flv \
    flv/foo_flv_600k_mp3_1024x768.flv
# second pass
ffmpeg -y -i foo.mpeg -vcodec flv \
    -s 1024x768 -acodec mp3 -b 600k -r 10 \
    -pass 2 -ar 22050 -ab 64 -f flv  \
    flv/foo_flv_600k_mp3_1024x768.flv


I also re-encode down to 640x480 and 800x600 at varying bitrates
including 300K. You can see an example of a 1280x720 video resized
here:-

http://screencasts.ubuntu.com/SAMBA_Filesharing

Click the "Watch now" links to see the flash versions.

However those were originally MPEG2, not OGG.

Hope that helps.

Cheers,
Al.
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