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Place things
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| --Made by a completely reasonable person for 100% legitimate reasons. | |
| obs = obslua | |
| screen = "" | |
| webcam = "" | |
| -- A very useful debug method | |
| function log(message) | |
| obs.script_log(obs.LOG_INFO, message) | |
| end | |
| function script_update(settings) | |
| screen = obs.obs_data_get_string(settings, "screen") | |
| webcam = obs.obs_data_get_string(settings, "webcam") | |
| end | |
| function script_properties() | |
| local props = obs.obs_properties_create() | |
| local p = obs.obs_properties_add_list(props, "screen", "Full screen capture", obs.OBS_COMBO_TYPE_EDITABLE, obs.OBS_COMBO_FORMAT_STRING) | |
| local q = obs.obs_properties_add_list(props, "webcam", "Webcam", obs.OBS_COMBO_TYPE_EDITABLE, obs.OBS_COMBO_FORMAT_STRING) | |
| local sources = obs.obs_enum_sources() | |
| if sources ~= nil then | |
| for _, source in ipairs(sources) do | |
| local source_id = obs.obs_source_get_id(source) | |
| -- Win name or Mac name | |
| if (source_id == "monitor_capture") or (source_id == "display_capture") or (source_if == 'window_capture') then | |
| local name = obs.obs_source_get_name(source) | |
| obs.obs_property_list_add_string(p, name, name) | |
| end | |
| -- Win name or Mac name | |
| if (source_id == "dshow_input") or (source_id == "av_capture_input") then | |
| local name = obs.obs_source_get_name(source) | |
| obs.obs_property_list_add_string(q, name, name) | |
| end | |
| end | |
| end | |
| obs.source_list_release(sources) | |
| obs.obs_properties_add_button(props, "my_button", "Place things", place_things_just_right) | |
| return props | |
| end | |
| function place_things_just_right() | |
| local source = obs.obs_get_source_by_name(screen) | |
| if source ~= nil then | |
| --Place the full screen image | |
| local video_info = obs.obs_video_info() | |
| obs.obs_get_video_info(video_info) | |
| local the_scene_item = find_scene_item_from_source(source) | |
| if the_scene_item ~= nil then | |
| local scale = obs.vec2() | |
| local w = obs.obs_source_get_width(source) | |
| local h = obs.obs_source_get_height(source) | |
| local mult = video_info.base_width / w | |
| scale.x = mult | |
| scale.y = mult | |
| obs.obs_sceneitem_set_scale(the_scene_item, scale) | |
| local pos = obs.vec2() | |
| pos.x = 0 | |
| pos.y = 0 | |
| obs.obs_sceneitem_set_pos(the_scene_item, pos) | |
| local dy = h - video_info.base_height / scale.y | |
| if dy >= 0 then | |
| crp = obs.obs_sceneitem_crop() | |
| crp.top = math.floor(dy / 2.0) | |
| -- Leave it out because it doesn't really matter | |
| --crp.bottom = math.floor(dy / 2.0) | |
| crp.left = 0 | |
| crp.right = 0 | |
| obs.obs_sceneitem_set_crop(the_scene_item, crp) | |
| end | |
| end | |
| end | |
| local source = obs.obs_get_source_by_name(webcam) | |
| if source ~= nil then | |
| local video_info = obs.obs_video_info() | |
| obs.obs_get_video_info(video_info) | |
| local the_scene_item = find_scene_item_from_source(source) | |
| if the_scene_item ~= nil then | |
| local w = obs.obs_source_get_width(source) | |
| local h = obs.obs_source_get_height(source) | |
| local target_w = 381 * video_info.base_width / 1920 | |
| local target_h = 253 * video_info.base_height / 1080 | |
| local aspect_ratio = w / h | |
| local scale = 1 | |
| if aspect_ratio > target_w / target_h then | |
| -- Crop from the left and right | |
| scale = target_h / h | |
| local to_crop = (w - h * target_w / target_h) / 2 | |
| crp = obs.obs_sceneitem_crop() | |
| crp.left = math.floor(to_crop) | |
| crp.right = math.floor(to_crop) | |
| crp.top = 0 | |
| crp.bottom = 0 | |
| obs.obs_sceneitem_set_crop(the_scene_item, crp) | |
| end | |
| if aspect_ratio < target_w / target_h then | |
| -- Crop from the top and bottom | |
| scale = target_w / w | |
| local to_crop = (h - w * target_h / target_w) / 2 | |
| crp = obs.obs_sceneitem_crop() | |
| crp.bottom = math.floor(to_crop) | |
| crp.top = math.floor(to_crop) | |
| obs.obs_sceneitem_set_crop(the_scene_item, crp) | |
| end | |
| local total_scale = obs.vec2() | |
| total_scale.x = scale | |
| total_scale.y = scale | |
| obs.obs_sceneitem_set_scale(the_scene_item, total_scale) | |
| local pos = obs.vec2() | |
| pos.x = video_info.base_width - target_w | |
| pos.y = 0 | |
| obs.obs_sceneitem_set_pos(the_scene_item, pos) | |
| end | |
| end | |
| end | |
| -- OBS has a roundabout way of going through the scene, but as long as there are no | |
| -- duplicate names this should work. | |
| function find_scene_item_from_source(source) | |
| local current_scene_source = obs.obs_frontend_get_current_scene() | |
| local current_scene = obs.obs_scene_from_source(current_scene_source) | |
| local scene_items = obs.obs_scene_enum_items(current_scene) | |
| local the_scene_item = nil | |
| local source_name = obs.obs_source_get_name(source) | |
| for i, scene_item in ipairs(scene_items) do | |
| if obs.obs_source_get_name(obs.obs_sceneitem_get_source(scene_item)) == source_name then | |
| the_scene_item = scene_item | |
| end | |
| end | |
| obs.sceneitem_list_release(scene_items) | |
| return the_scene_item | |
| end |
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