`StaticSoundData` is a performance footgun in debug mode

[PatchMixolydic]

Using StaticSoundData when symphonia is built with opt-level = 0 can cause long audio processing times of up to twelve seconds. In an application that plays sound effects rapidly (such as a game that makes a sound every time you shoot or move), this is enough to fill the command queue. Ideally, until symphonia can be optimized, this limitation should be documented somewhere.

[tesselode]

Are you having long processing times when loading the StaticSoundData or every time you play it?

[PatchMixolydic]

It only seems to happen when loading the StaticSoundData (both from a Cursor<_> and from a file).

[attackgoat]

I am seeing the same issue: very long delay for reasonably sized .mp3 files

The following Cargo.toml override is what worked for me:

[profile.dev.package.symphonia-bundle-mp3]
opt-level = 3

[tesselode]

I added an installation section to the book with information on setting the optimization level for dependencies.