Date: Thu, 22 Nov 2007 10:00:48 +0530 From: Girish Venkatachalam <girishvenkatachalam@gmail.com> To: freebsd-questions@freebsd.org, questions@FreeBSD.org Subject: Re: efficient terminal/console screencasting Message-ID: <20071122043048.GA21707@saraswathy.susmita.org> In-Reply-To: <20071121182639.GA66812@amilo.cenkes.org> References: <20071121182639.GA66812@amilo.cenkes.org>
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On 21:26:41 Nov 21, Andrew Pantyukhin wrote: > A while ago I needed to screencast a terminal to a class of > students in real-time. It turned out to be quite straightforward > with screen(1) in multiuser mode. screen(1) is really cool. :) > Now I want to record screencasts and allow people to watch them > later. I'm looking at recordmydesktop, but the innefficiency > strikes me: I'm operating in text-only environment, there's no > need to record every frame as a flat bitmap. Whatever codec I > choose, the files will be huge and of low quality. How about ttyrec(1) and ttyplay(1) ? > What I need is something like script(1) on steroids: > - accurately record the complete state of my terminal window at > any given moment > - store it as a succession of updates, each represented in a > text-based format (as opposed to pixel-based) If you want pixel based output then there are quite a few options but none to my taste. As you mention they all are bloated. > - record timings correctly > - allow for a method to record speech in the background This you have to do manually with sox(1). Not a big deal. A simple shell script can do what you want. > - allow for a method to play it all back in sync This is no big deal either. If you want to create a video, then you have to go in for pixel based stuff. You can however do efficient compression and use a good codec like x264 or something. > Has anyone heard about any tool which would help me achieve at > least some of my requirements? Your idea seems good enough to create an open source tool that does exactly what you want. Best, Girish
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