audiobargraph_a: simplify Close
audiobargraph_a: use CFG_PREFIX
audiobargraph_a: variables are not COMMAND
audiobargraph_a: unused variable
audiobargraph_a: fix counter wrapping
audiobargraph_a: move initialization in Open()
peack -> peak
audiobargraph_a: some bool variables use integer type

We can't modify it without breaking existing setups
audiobargraph_a: c99 for, cosmetics
pow(x, 2) => x * x
audiobargraph_a: move variable declaration
audiobargraph_a: cosmetics
audiobargraph_a: remove commented out code
audiobargraph_a: simplify repetition check
audiobargraph_a: name variable
audiobargraph_a: split function
audiobargraph_a: cosmetics
audiobargraph_a: update copyright years
Remove unused VLC_VAR_SETISCOMMAND