From: Russell Adams <RLAdams@AdamsInfoServ.Com>
To: emacs-orgmode@gnu.org
Subject: Re: Org-mode screencasts
Date: Fri, 5 Nov 2010 08:11:06 -0500 [thread overview]
Message-ID: <20101105131106.GA4528@x201> (raw)
In-Reply-To: <AANLkTimZekttC0TFL_FFNHh=gyfpN166SDLvdXgA2sqX@mail.gmail.com>
On Thu, Sep 23, 2010 at 12:21:14PM -0400, Richard Moreland wrote:
> I've just installed and tested "recordmydesktop" (based on Russell's
> recommendation) on my Linux system and it seems to work great. It
> produces .ogv video files, which will need to be run through ffmpeg or
> mencode first to be compatible with Vimeo.
To update this topic:
I've been recording a screencast for setting up a functional Org-mode
installation in Windows (I'll post about this separately), and wanted
to share the tools I'm using.
I did use recordmydesktop, and the Ogg Theora files it outputs had
some minor time synchronization issues. Nothing major, it "catches up"
frequently, but not real time keystroke capture. It runs in spurts.
I used Kdenlive to stitch together multiple segments, and found it to
be an excellent product, with terrible Ogg Theora support. To save
some time for the next person, here's what I did.
I took my .ogv's and transcoded them to .mov using ffmpeg, and split
the audio out to a separate wav file. Then Kdenlive used the .mov and
.wav in parallel tracks for rendering.
for X in *.ogv ; do ffmpeg -i $X -vn -acodec pcm_s16le -ar 22050 -ac 1
`basename $X .ogv`.wav ; done
for X in *.ogv ; do ffmpeg -i $X -an `basename $X .ogv`.mov ; done
After learning a bit on audio and video fades, Kden's rendering was
great. Always use at least a short audio fade in and out to prevent
clicks when changing tracks.
Next time I may use ffmpeg directly to record to avoid Theora, though
I think I'll continue to use my bluetooth headset with pulseaudio.
Thanks.
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next prev parent reply other threads:[~2010-11-05 13:11 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-23 15:12 Org-mode screencasts Richard Moreland
2010-09-23 15:22 ` Russell Adams
2010-09-23 15:27 ` Eric Schulte
2010-09-23 16:31 ` John Hendy
2010-09-23 15:56 ` Erik Iverson
2010-09-23 16:21 ` Richard Moreland
2010-09-23 16:49 ` Bastien
2010-11-05 13:11 ` Russell Adams [this message]
2010-09-23 18:16 ` Sebastian Rose
2010-09-23 22:47 ` Charles Cave
2010-09-24 0:45 ` Richard Moreland
2010-09-24 2:54 ` Erik Iverson
2010-09-24 3:09 ` John Hendy
2010-09-24 3:34 ` Richard Moreland
2010-09-24 3:46 ` Shelagh Manton
2010-09-24 20:17 ` Stefan Vollmar
2010-09-24 3:50 ` Erik Iverson
2010-09-25 23:34 ` Richard Moreland
2010-09-24 2:58 ` Erik Iverson
2010-09-24 8:45 ` Memnon Anon
2010-09-24 3:10 ` Eric Abrahamsen
2010-09-26 15:03 ` Olivier Berger
2010-09-26 18:41 ` Jeff Kowalczyk
2010-09-28 10:23 ` Scot Becker
2010-09-28 10:35 ` Richard Riley
2010-09-28 12:06 ` Sebastian Rose
-- strict thread matches above, loose matches on Subject: below --
2010-09-23 16:34 Rustom Mody
[not found] <201009241600.o8OG0swV023247@hormel6.ieee.org>
2010-09-24 18:01 ` Raymond Zeitler
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