Lua script for Advanced Scene Switcher (on OBS) to make the video scale fully to "Display Capture"

.lua

obs = obslua

function run()
    local source = obs.obs_frontend_get_current_scene()
    local scene = obs.obs_scene_from_source(source)
    local sceneitem = obs.obs_scene_find_source(scene,"Display Capture")
    obs.obs_source_release(source)

    local source = obs.obs_sceneitem_get_source(sceneitem)
    local width = obs.obs_source_get_width(source)
    local height = obs.obs_source_get_height(source)

    local video_info = obs.obs_video_info()
    obs.obs_get_video_info(video_info)
    video_info.base_width = width
    video_info.base_height = height
    obs.obs_reset_video(video_info)

    local transform_info = obs.obs_transform_info()
    obs.vec2_set(transform_info.scale, 1, 1)
    obs.vec2_set(transform_info.pos, 0, 0)
    transform_info.alignment = 5 -- OBS_ALIGN_LEFT | OBS_ALIGN_TOP
    obs.obs_sceneitem_set_info2(sceneitem, transform_info)

    -- obs.script_log(obs.LOG_WARNING, tostring(obs.OBS_ALIGN_LEFT))
    return true
end