{"id":11128,"date":"2019-02-28T16:36:02","date_gmt":"2019-02-28T13:36:02","guid":{"rendered":"https:\/\/trueconf.com\/blog\/?p=11128"},"modified":"2024-06-28T12:27:03","modified_gmt":"2024-06-28T09:27:03","slug":"camera-preset-control-via-command-line-in-trueconf-weathervane","status":"publish","type":"post","link":"https:\/\/trueconf.com/blog\/knowledge-base\/camera-preset-control-via-command-line-in-trueconf-weathervane","title":{"rendered":"Camera Preset Control via Command Line in TrueConf Weathervane"},"content":{"rendered":"

TrueConf Weathervane<\/span><\/a> supports switching camera presets used during video conferences via command line parameters. Thanks to this fact the application can be used not only as a speaker tracking tool, but also as camera control tool.<\/span><\/p>\n

Command description<\/span><\/h2>\n


\nPreset is assigned when the program is called via parameter -p [num]<\/code> or -preset [num]<\/code><\/span><\/p>\n

Here [num]<\/code> is preset identifier.<\/p>\n

For example, command that activates preset #1<\/b> looks like<\/span><\/p>\n

WeatherVane.exe -preset 1<\/pre>\n
Manual switch (test)<\/span><\/h2>\n
In order to test how it works start TrueConf Weathervane. Open Windows console and proceed to the folder where the application is installed. Use the command from the previous section. Active preset in the application window will change.<\/span><\/p>\n
\"\"<\/a><\/p>\n
Switch TrueConf Weathervane through the shortcut<\/span><\/h2>\n
You can also add preset switch parameter to TrueConf Weathervane shortcut (you can find example on how to add parameters to the shortcut in our<\/span> article<\/span><\/a>). After that even inexperienced users will be able to switch cameras and their positions by shortcut double click.<\/span><\/p>\n
\"\"<\/a><\/p>\n
Automatic command sending<\/span><\/h2>\n
Application can be called not only directly, but also from your own program code. This will allow to embed any cameras switching scenario to your application and connect it to program operation in any way.<\/span><\/p>\n
Here is a simple example: a Python 2.7 code that allows to switch presets circle-wise one after another every minute:<\/span><\/p>\n
from time import sleep\r\nfrom itertools import cycle\r\nfrom os import system\r\n\r\ndef set_preset_index(index):\r\n    WEATHERVANE_PATH = \"C:\\\\Program Files (x86)\\\\TrueConf\\\\WeatherVane\\\\WeatherVane.exe\"\r\n    \r\n    command = \"\\\"{}\\\" -p {}\".format(WEATHERVANE_PATH, index)\r\n    system(command)\r\n\r\ndef process_values_rhythmically(callback, values_iterator, \\\r\n\t\t\t\t\t\t\t\tsingle_time_interval):\r\n    while True:\r\n        value = next(values_iterator)\r\n        if value is None:\r\n            return\r\n        callback(value)\r\n        \r\n        sleep(single_time_interval)\r\n\r\ndef switch_cameras_by_cycle(**params):\r\n    process_values_rhythmically(set_preset_index, \\\r\n    \t\t\t\t\t\t\tcycle(range(params[\"n_presets\"])), \\\r\n           \t\t\t\t\t\tparams[\"time_interval\"])\r\n\r\nswitch_cameras_by_cycle(n_presets = 5, time_interval = 60.)\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
TrueConf Weathervane supports switching camera presets used during video conferences via command line parameters. Thanks to this fact the application can be used not only as a speaker tracking tool, but also as camera control tool. Command description<\/p>\n","protected":false},"author":45,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[260],"tags":[188],"class_list":["post-11128","post","type-post","status-publish","format-standard","hentry","category-knowledge-base","tag-trueconf-solutions","wpautop"],"_links":{"self":[{"href":"https:\/\/trueconf.com/blog\/wp-json\/wp\/v2\/posts\/11128","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/trueconf.com/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/trueconf.com/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/trueconf.com/blog\/wp-json\/wp\/v2\/users\/45"}],"replies":[{"embeddable":true,"href":"https:\/\/trueconf.com/blog\/wp-json\/wp\/v2\/comments?post=11128"}],"version-history":[{"count":11,"href":"https:\/\/trueconf.com/blog\/wp-json\/wp\/v2\/posts\/11128\/revisions"}],"predecessor-version":[{"id":14967,"href":"https:\/\/trueconf.com/blog\/wp-json\/wp\/v2\/posts\/11128\/revisions\/14967"}],"wp:attachment":[{"href":"https:\/\/trueconf.com/blog\/wp-json\/wp\/v2\/media?parent=11128"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/trueconf.com/blog\/wp-json\/wp\/v2\/categories?post=11128"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/trueconf.com/blog\/wp-json\/wp\/v2\/tags?post=11128"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}