Versioned sources were added in commit
b2302902a3b3e1cce140a6417f4c5e490869a3f2 after the scene collection
importer was added in commit 191165c7210f2b8adf8756cf121341075bf16b3d.
When a versioned source gets converted in TranslateOSStudio, it can end
up with a translated "id" but an untranslated "versioned_id". When OBS
loads the resulting JSON, it will rely on the versioned_id, and rewrite
the id to the corresponding value. Use obs_get_latest_input_type_id on
the translated source id to get the correct versioned_id when using
TranslateOSStudio.
The OS translation in the Scene Collection Importer seems to have been
broken since the feature was added because the translated sources were
not added back to the output JSON object. Add the translated sources to
the output JSON object to get the feature to work.
Previously, the importer assumed scenes had fields that sources did for
audio, namely volume, sync, mute and monitoring type. SL scenes do not
have these fields. This resulted in mistakes in importing, such as
imported scenes having a volume of 0.0.
This change gets rid of the non-existent fields, and explicitly sets the
volume of the scenes to 1.0 as a precaution.
The previous fix for repeated names accidentally meant that if a scene
item in a scene was meant to show another scene that was lower in the
list, it would fail to create the item, and wouldn't make it into the
imported collection.
This fix makes sure that scenes as sources still works properly in that
situation.
This replaces the previous Open File dialog for importing collections
with a window for importing many collections at once, based on the remux
window, along with support for importing from OBS Classic, XSplit
Broadcaster and from Streamlabs' fork. This also translates sources
between OSes that Studio supports.
