OBS Script to automatically change scene in iRacing

is-driving.py

# Author: Antonio Rodríguez (@musantro)
# Date: 2022-01-28
# This code is licensed under the terms of the MIT license

import obspython as obs
import irsdk

interval = 3
on_track_scene_prop = ""
off_track_scene_prop = ""
ir = irsdk.IRSDK()


def script_description():
    return "Updates the scene whether the streamer is on Track at iRacing or not"


def script_update(settings):
    global interval
    global on_track_scene_prop
    global off_track_scene_prop

    on_track_scene_prop = obs.obs_data_get_string(settings, "on_track_scene_prop")
    off_track_scene_prop = obs.obs_data_get_string(settings, "off_track_scene_prop")

    obs.timer_remove(update_scene)
    obs.timer_add(update_scene, interval * 1000)


def update_scene():
    global on_track_scene_prop
    global off_track_scene_prop
    global ir

    scenes = obs.obs_frontend_get_scenes()
    current_scene = obs.obs_frontend_get_current_scene()

    track_scenes = {
        True: on_track_scene_prop,
        False: off_track_scene_prop
    }

    if on_track_scene_prop != "" and off_track_scene_prop != "" and ir.startup() \
    and ir.is_initialized and ir.is_connected:
        current_scene_name = obs.obs_source_get_name(current_scene)
        if track_scenes[ir['IsOnTrack']] != current_scene_name:
            for scene in scenes:
                name_scene = obs.obs_source_get_name(scene)
                if track_scenes[ir['IsOnTrack']] == name_scene:
                    obs.obs_frontend_set_current_scene(scene)

    obs.obs_source_release(current_scene)
    obs.source_list_release(scenes)


def script_properties():
    props = obs.obs_properties_create()

    on_track_scenes_combo = obs.obs_properties_add_list(
        props, "on_track_scene_prop", "On Track Scene", obs.OBS_COMBO_TYPE_EDITABLE, obs.OBS_COMBO_FORMAT_STRING)
    off_track_scenes_combo = obs.obs_properties_add_list(
        props, "off_track_scene_prop", "Off Track Scene", obs.OBS_COMBO_TYPE_EDITABLE, obs.OBS_COMBO_FORMAT_STRING)

    scenes = obs.obs_frontend_get_scene_names()

    if scenes is not None:
        for scene in scenes:
            name = scene
            obs.obs_property_list_add_string(on_track_scenes_combo, name, name)
            obs.obs_property_list_add_string(off_track_scenes_combo, name, name)

    obs.source_list_release(scenes)

    return props


def script_save(settings):
    script_update(settings)


def script_unload():
    global ir
    ir.shutdown()

You need to have python 3 installed.

Also, install pyirsdk with:

> pip install pyirsdk

To use it:

Place it into your scripts folder in OBS. Tipically:

C:\Program Files (x86)\obs-studio\data\obs-plugins\frontend-tools\scripts

Then activate in OBS, in tools > scripts and add the file you just created in scripts folder.

Then set in the two combos which scene do you want for "is driving" or "is not driving".

Happy streaming!