[PLUG-AV] IBM Talk video in WebM

[Harry McNally]

Thanks James. I won't be able to view until later today but I'll give some
feedback.

Harry

On 16/06/11 09:49, James Bromberger wrote:
>   Hello all,
> Weighing in at 685 MB, and running for 1 hour 40 minutes 11 seconds (so
> around 114 KByte/sec), is the latest video from Tuesday's IBM talk in
> the WebM format available at:
> 
>     *http://www.plug.org.au/video/2011/
>     *
> 
> 
> This was produced with:
> 
>     *ffmpeg  -i IBM-HPC.dv -acodec libvorbis -aq 6 -vcodec libvpx -b
>     512k IBM-HPC.webm
>     *
> 
> 
> Now we should possibly reduce to mono audio encoding, and may be add
> de-interlace.  This was produced on AV 2 in about 5 hours; we may be
> able to do better with "-threads 2". I started a bash script to handle
> this in ~av/Desktop/transcode-video-to-webm.sh, and saw a suggestion of:
> 
>     *ffmpeg -y -i $1 -threads 8 -f webm -aspect 16:9 -vcodec libvpx
>     -deinterlace -g 120 -level 216 -profile 0 -qmax 42 -qmin 10
>     -rc_buf_aggressivity 0.95 -vb 2M -acodec libvorbis -aq 90 -ac 2
>     ${1%.dv}.webm
>     *
> 
> 
> 
> AV 2 is up temporarily on IPv6 at av2.home.james.rcpt.to
> (2001:470:f29c:0:21e:8cff:fea4:17b5) if someone wants to have a go at
> other encodes?? Original DV Video files and transcodes are in
> /storage/av/2011/IBM/; let me know if you're actively trying this so I
> don't turn it off when sorting the shed on the weekend.
> 
> If no one wants to play with another encode, and everyone is happy with
> this one, then we can tell the list its there....
> 
>   James
> 
> 
> -- 
> /Mobile:/ +61 422 166 708, /Email:/ james_AT_rcpt.to
> PLUG President 2011: http//www.plug.org.au
> Perth.pm Organiser 2011: http://perth.pm.org
> 
> 
> 
> _______________________________________________
> AV mailing list
> AV at plug.org.au
> http://lists.plug.org.au/mailman/listinfo/av