Audio won't reinitialize when driver initialization failed

Important Information

Provide following Information:

• mpv version: mpv-0.33.0-x86_64
• Platform and Version: Windows 7 x64
• Source of the mpv binary: sourceforge.net

Reproduction steps

Switch to a non-available audio device during playback and try to switch back to an available one (using the method described in https://github.com/mpv-player/mpv/issues/2398)

Expected behavior

Audio is restored when the command to switch to an available audio device is issued.

Actual behavior

Audio stays muted once audio driver failed to initialize (looking at the log messages it seems like ao_init_best is not called anymore when trying to use a different device).

Log file

[ao/wasapi] Failed to find device '<device-id>'
[ao] Failed to initialize audio driver 'wasapi'
[ao] This audio driver/device was forced with the --audio-device option.
[ao] Try unsetting it.
Could not open/initialize audio device -> no sound.
Audio: no audio

Sample files

entry in input.conf: a cycle_values options/audio-device wasapi/<device-id> wasapi/<device-id2>

Start at the ao_init_best path mentioned in the report and trace how cycling options/audio-device through input.conf handles a failed WASAPI initialization. Reproduce on Windows with an unavailable device, then switch to an available one. Done means audio is restored and the relevant initialization path runs again.