New answers tagged resolution
I have a Macbook Air 13 (Early 2014) and have bought the Dell U3415W display which has a native resolution of 3440x1440. I could connect it with the supplied miniDP to DP port in the native resolution (3440x1440) as well as with a Belkin miniDP to HDMI adapter and an HDMI cable in the native resolution. I know this does not exactly answer your questions as ...
A full-on image compression explanation is probably better suited for StackOverflow, but since you related it to Apple, I'll give an overview here. The image itself actually determines the size of its file to an extent. With that, one can compress some images more than others without losing much apparent quality. For example, the JPEG image compression ...
Turns out that the highest quality that I could export at using Quicktime was 1920 x 1080, however by saving it instead of exporting, I was able to achieve 2880 width. I then converted the video using ffmpeg with: ffmpeg -i demo-video.mov demo-video.mp4 And I had a web ready video at 2880 width!
A quick Google search found one of my favorite tips for OS X: http://hints.macworld.com/article.php?story=20131030130206132 Essentially, go to System Preferences > Displays, option-click the Scaled button, then select a new resolution. Your QuickTime movie should record at the new resolution, but remember bigger resolutions take up more graphics power.
I had the same problem yesterday. I needed to do recording on Windows (a Parallels VM) in 1280x720 (16:9), and Parallels always resets my Windows resolutions to whatever Macbook sees even when I use the config options Parallels say should not mess with that. I wrote this exact command with cscreen: cscreen -x 1280 -y 720 -r 60 Which allowed my Macbook to ...
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