Make DynamicMixer and OutputStream generic
#547
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This commit adds a new trait, `Mixer`, and refactors some of the code around generic mixers in order to support it. This is to make more of the code reusable without rewriting - specifically, to support a feature that I would like to implement in `bevy_audio` where audio sources can send audio to an intermediate mixer. The motivation for this was to add a global limiter to all game audio, so that loud sounds did not cause clipping on the master bus, but another possible usecase would be to split in-game audio and menu audio into separate "worlds" and apply, for example, a low-pass filter while in the pause screen.
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It looks like the test failures are due to unrelated code, and are because of the addition of redundant import checks to |
This commit adds a new component, `AudioTarget`. This component allows marking sources to be played via a specific `OutputStreamHandle` instead of the global one. At time of writing, changing the audio target will result in restarting the source, as `rodio` provides no way to get the inner source queue for a `Sink`. This is already the case for the current version of Bevy when a component's `AudioSink` is removed, however, so I think that this behavior is acceptable for now. This allows users to specifically target certain audio devices, and when [rodio#547](RustAudio/rodio#547) lands it will allow users to use intermediate mixers - e.g. to add global or per-item-set effects such as reverb.
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A more-minimal version of this PR would just make |
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It looks like the test failures are due to unrelated code, and are because of the addition of redundant import checks to
unused_imports.
The test failures should be gone on the main branch now because of #554.
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Could you rebase this on main? (or merge main into it). Then you'll get the fixed (thanks @hamirmahal) test suite. |
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You're welcome, @dvdsk! |
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I'm going to close this given we just redesigned the mixer & stream and the code has diverged a lot now. During the design we discussed this use-case and decided to not make the mixer generic for now. The performance and API tradeoffs where unclear and the use-cases are already possible by adding a Source to the mixer that is itself a new special mixer. That reduced the use-case of this PR to optimization. Once we have a better idea how the new Feel free to re-open but the re-base is going to be hellish and its probably better to start again. |
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This commit adds a new trait,
Mixer, and refactors some of the code around generic mixers in order to support it. This is to make more of the code reusable without rewriting - specifically, to support a feature that I would like to implement inbevy_audiowhere audio sources can send audio to an intermediate mixer. The motivation for this was to add a global limiter to all game audio, so that loud sounds did not cause clipping on the master bus, but another possible usecase would be to split in-game audio and menu audio into separate "worlds" and apply, for example, a low-pass filter while in the pause screen.