[APP BUG] projectM SDL2 gets AUDCLNT_E_UNSUPPORTED_FORMAT error when initializing IAudioClient

[kblaschke]

Please confirm the following points:

• This report is NOT about the Android apps in the Play Store
• I have searched the project page to check if the issue was already reported

Affected Application

projectM Standalone SDL2 Frontend (includes the Steam app)

Affected Version

2.0-pre3

Operating System

Windows

Additional Application Details

No response

Type of Defect

Audio issue (no audio recording, delayed reaction)

Log Output

IAudioClient->Initialize failed: result = 0x88890008

Describe the Issue

On some machines, WASAPI returns AUDCLNT_E_UNSUPPORTED_FORMAT (0x88890008) when trying to initialize the IAudioClient COM object. Possible cause is requesting a sample/channel format not supported by the installed audio driver.

[kblaschke]

I've added a call to IAudioClient::IsFormatSupported() to check the returned default format for validity and use a closest match format, if available.

I'll build an updated development release for testing in the coming days with this fix included and post it here.