Apologies for image quality here … I stupidly tried using jpgs instead of pngs (probably at slightly inferior quality settings) just to see what it’d be like … but now I can see/remember why I usually use pngs for these types of images despite the bandwidth costs.
Video screen-capture example – the “custom fields” as seen on this post (used in
Set the fixed region, and toggle recording to AVI (if short video and/or small area)
For this video I fixed the left-hand corner. NOTICE THE VIDEO SIZE. And I usually round to even numbers since some thing like even numbers (or powers of two if convenient).
For small screen captures I find it most convenient (and free) to use the brilliant Cam Studio. I set “region” to fixed and in this case, fix the left corner in place too. Recording to MP4 is efficient, but still requires trans-coding with Handbrake anyway to use common codecs that most devices understand (despite the MP4 licencing issues). It’s cleaner and no bother, for short, small videos, to record to AVI, and then trans-code with Handbrake. It also permits the additional step, if required, of trimming the AVI with the venerable but indispensable Virtual Dub.
First I select a Device with dimensions that exceed my video’s dimensions and check the picture size is the same as the source. If there are dark bars in the video I would set cropping to Custom. I’m not considering Apple devices at the moment for streaming efficiency / codec compatibility. Just one simple mp4 video type. For the output settings I select Web Optimized, and frame-rate to be same as source, and select Fast Decode. That’s sufficient for this video. The encoded (in this case, from AVI, rather than trans-coded, more or less anyway) output for this 15-second video at 1114 by 474 pixels with no sound is 126KB. Small enough to serve from my blog’s server with no special streaming/bit-throttling set-up. One day, in the not too-far distant future, Windows will no longer support Win32 etc. applications, instead only permitting “apps” from the Apps Store. I’m not aware of any open-source alternatives to comprehensively match, with similar GUI simplicity and intuitiveness what Cam Studio and Virtual Dub can do? There are options that maybe together can do similar things to Handbrake, I think. Maybe there are options on Linux platforms?