Cheatsheet for image / video metadata manipulation.
Last updated 2019-07-24
until more specific license...
THE CONTENT BELOW IS PROVIDED "AS-IS",
WE DISCLAIM LIABILITY FOR ALL USES TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW.
| Latency Comparison Numbers | |
| -------------------------- | |
| L1 cache reference 0.5 ns | |
| Branch mispredict 5 ns | |
| L2 cache reference 7 ns 14x L1 cache | |
| Mutex lock/unlock 25 ns | |
| Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
| Compress 1K bytes with Zippy 3,000 ns 3 us | |
| Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
| Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
| gource.exe --output-ppm-stream gource.ppm -1280x720 --hide filenames,usernames --disable-progress --multi-sampling --bloom-intensity 1.0 --seconds-per-day 30 c:\gitrepo | |
| ffmpeg -i gource.ppm -an -threads 4 -y -f image2pipe -vcodec libx264 -aspect 16:9 -s 1280x720 -r 30.000 | |
| -vb 8000000 gource.mp4 |
Open http://j.mp/jivkokshell in Internet Explorer. Same as:
START http://boxstarter.org/package/nr/url?https://raw.githubusercontent.com/jivkok/Chocolatey-Packages/master/jivkok.Shell/shell.boxstarter.ps1
Make sure everything is up to date.