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    "info": {
        "author": "Cade Brown",
        "author_email": "cade@chemicaldevelopment.us",
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            "Topic :: Multimedia :: Video :: Conversion"
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        "description": "# vpl\n\nVide Pipe Line\n\n\n# installation\n\nRun `pip3 install vpl` (it's on pypi)\n\nOr `pip3 install -e git://github.com/chemicaldevelopment/vpl` (for development, i.e. unstable builds)\n\n# usage\n\nIt comes with a simple viewer, run:\n\n`python3 -mvpl --help`\n\nYou can use `import vpl` in your code\n\n# exposure settings\n\nExposure settings are extremely finicky to get working. Here's a few commands to try:\n\nFirst, set the auto control cutoff to 1:\n\n`v4l2-ctl -d /dev/video0 -c exposure_auto=1`\n\nThen, try setting the exposure value to various values between -100 and +100:\n\n`v4l2-ctl -d /dev/video0 -c exposure_absolute=-30`\n\n`v4l2-ctl -d /dev/video0 -c exposure_absolute=0`\n\n`v4l2-ctl -d /dev/video0 -c exposure_absolute=0.5`\n\n`v4l2-ctl -d /dev/video0 -c exposure_absolute=20`\n\nThe optimal low/medium light setting for the Micro$oft Lifecam is:\n\n`v4l2-ctl -d /dev/video0 -c exposure_absolute=20.9`\n\n\nUse this command:\n\n`v4l2-ctl --all`\n\n*to print settings (and their defaults). This is the most important v4l command*\n\nRun through setting all these to defaults\n\n\nHere are the defaults for Micro$oft Lifecam:\n\n```\n\nStreaming Parameters Video Capture:\n\tCapabilities     : timeperframe\n\tFrames per second: 30.000 (30/1)\n\tRead buffers     : 0\n                     brightness (int)    : min=30 max=255 step=1 default=133 value=133\n                       contrast (int)    : min=0 max=10 step=1 default=5 value=5\n                     saturation (int)    : min=0 max=200 step=1 default=83 value=83\n white_balance_temperature_auto (bool)   : default=1 value=1\n           power_line_frequency (menu)   : min=0 max=2 default=2 value=2\n      white_balance_temperature (int)    : min=2800 max=10000 step=1 default=4500 value=4500 flags=inactive\n                      sharpness (int)    : min=0 max=50 step=1 default=25 value=25\n         backlight_compensation (int)    : min=0 max=10 step=1 default=0 value=5\n                  exposure_auto (menu)   : min=0 max=3 default=1 value=1\n              exposure_absolute (int)    : min=5 max=20000 step=1 default=156 value=40\n                   pan_absolute (int)    : min=-201600 max=201600 step=3600 default=0 value=0\n                  tilt_absolute (int)    : min=-201600 max=201600 step=3600 default=0 value=0\n                  zoom_absolute (int)    : min=0 max=10 step=1 default=0 value=0\n\n```\n\n\nUse the script `utils/reset_lifecam.sh`",
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