robgaunt
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| #include <array> | |
| #include <cmath> | |
| #include <vector> | |
| // Brightness correction table. Run below script and paste result. | |
| /* | |
| echo " | |
| min_brightness = 100 | |
| max_brightness = 8192 | |
| gamma = 4.0 |
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| # Rate in frames per second. | |
| RATE=30 | |
| # Duration in seconds. | |
| DURATION=300 | |
| # Video size options: https://www.ffmpeg.org/ffmpeg-utils.html#Video-size | |
| SIZE=hd1080 | |
| OUTFILE=avsync_${SIZE}_${RATE}fps_${DURATION}s.webm | |
| ~/bin/ffmpeg -f lavfi -i "sine=frequency=1:beep_factor=800:duration=${DURATION}" \ | |
| -f lavfi -i "testsrc=duration=${DURATION}:size=${SIZE}:rate=${RATE}" \ |