fix-cava-audio-height-init

[xav-ie]

This might fix #4244

The cava module bars always peak at maximum regardless of sensitivity settings.

data_format was changed from always being "ascii" to only being set when user-provided. Without an explicit value, cava defaults to "binary", which calculates height = pow(2, 16) - 1 = 65535 instead of ascii_range. This causes audio_raw_fetch() to scale bars incorrectly.

Default data_format to "ascii" while preserving user override capability. This mantains the previous default.

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• fix(cava): default data_format to ascii for correct bar scaling

  data_format was changed from always "ascii" to user-configurable,
  but without a default. This caused cava to use "binary", calculating
  height as 65535 instead of ascii_range, making bars always peak.

[LukashonakV]

Hi @xav-ie , for now I'm not able to check. Will do , once have a time. It might possible original bug can be issued in the original cava project or libcava. If the issue is brought by the waybar cava module implementation, then I'm ok. Otherwise it should be managed by the cava/libcava. Actually I don't remember for now, what the purpose to set max height in the waybar cava.

BTW: thank you for investigation and happy new year)

[xav-ie]

Hey, @LukashonakV. Thank you for the quick response.

Your suggestion to put the change in cava led me to find out that I made a mistake.

Previously, data_format always defaulted to "ascii". Now, the new code does not default and cava defaults to "binary".

This would cause the height to now default to a large value.

We just need to restore the defaulting behavior. I updated the PR to add this back.

Happy new year!