Allows for enumerating any kind of source, as long as it has a name and is not private. As obs_enum_scenes is a 23.x and above function, this class should be used instead to remain backwards compatible.
Fixes the m_source_texture = nullptr bug, which happened due to m_tick and m_last_tick both being 0, as no video_tick is called when the source is first created. Instead a boolean flag is now used that is reset to false on each video_tick.
This replaces the use of gs_texture_t* with gs::texture, further improving stability. Additionally some of the useless checks were replaced or reduced.
The filters are always the same for every language and should not be translated, instead only the file type should be translated. This way bad translations will not affect the options that the user can select.
The Transform filter will now no longer render the child source more than once per tick(), resulting in an overall speed up for heavy sources. This also applies to mipmapping and shape rendering. Any other calls to video_render will instead just use the cached texture.
Additionally the crash on exit has been fixed which was caused by strings.hpp containing static const char*s and using these directly in obs calls. Instead we now use #define for those property names
Rendering will now use a cached version of the mirrored source in order to reduce rendering cost drastically for heavy sources or scenes. Additionally rescaling now uses the internal scene instead of being a custom implementation, allowing for some new things.
Rescaling now has a new option: Bounds Type! This option allows control over just how a source is scaled, by default it is set to Stretch, but there are other options that can keep the aspect ratio of the mirrored source in tact.
Additionally the ScalingMethod struct has been replaced with obs_scale_type, which means that Bilinear Low Resolution is now no longer an option.
Implements #35
Initialization happens in the constructor again, as using a delayed initialization only caused update() to be slower.
Additionally refactored some variable names to make more sense.
load() is guaranteed to happen after all sources have been created and no earlier, and we can use update() to guarantee that we don't need to duplicate our initialization code in case we go back to initializing earlier than load().
This fixes the multi-reference issue that caused Source Mirror to keep a permanent reference to a source that should have been released.
The obs::audio_capture was also updated to now use the util::event code for improved callback support. There are a bunch of new additional checks in the acquire_input function that prevent bad references from happening, and is also now self-cleaning through the use of obs::source
By using util::event a single obs::audio_capture can now have multiple callbacks for the same data, without requiring additional obs::audio_capture to be present. Additionally it allows us to stop listening on an obs callback if there are no actual listeners, and start listening as soon as there is a listener.
Move and Copy constructors are currently not supported by this class and thus have been marked deleted. Internally also now using obs::source to keep track of the used source.
There was no proper implementation for all copy and move constructors and operators before, which meant that occasionally the default behavior took over. This is not what we want, as the default behavior doesn't deal well with reference counted pointers.
Related: #32, #33
