decoder/mad, ...: more libfmt logging

src/filter/plugins/ReplayGainFilterPlugin.cxx

@@ -94,9 +94,9 @@ public:
 			/* no change */
 			return;
 
-		FormatDebug(replay_gain_domain,
-			    "replay gain mode has changed %s->%s\n",
-			    ToString(mode), ToString(_mode));
+		FmtDebug(replay_gain_domain,
+			 "replay gain mode has changed {}->{}",
+			 ToString(mode), ToString(_mode));
 
 		mode = _mode;
 		Update();
@@ -155,8 +155,7 @@ ReplayGainFilter::Update()
 	if (mode != ReplayGainMode::OFF) {
 		const auto &tuple = info.Get(mode);
 		float scale = tuple.CalculateScale(config);
-		FormatDebug(replay_gain_domain,
-			    "scale=%f\n", (double)scale);
+		FmtDebug(replay_gain_domain, "scale={}\n", scale);
 
 		volume = pcm_float_to_volume(scale);
 	}

src/filter/plugins/meson.build

@@ -26,6 +26,7 @@ filter_plugins = static_library(
   include_directories: inc,
   dependencies: [
     filter_plugins_deps,
+    log_dep,
   ],
 )