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record screen (with webcam overlay)
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| #!/bin/sh | |
| # brew install ffmpeg | |
| ffmpeg -thread_queue_size 50 \ | |
| -f avfoundation -framerate 30 -i "1" \ | |
| -thread_queue_size 50 -f avfoundation -framerate 30 -video_size 640x480 -i "0" \ | |
| -c:v libx264 -crf 18 -preset ultrafast \ | |
| -filter_complex 'overlay=main_w-overlay_w-10:main_h-overlay_h-10' -r 30 screen-capture.mkv | |
| # see http://stackoverflow.com/a/33595841/178576 |
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