tag/ApeReplayGain: add overload with InputStream& parameter

src/tag/ApeReplayGain.cxx

@@ -48,6 +48,23 @@ replay_gain_ape_callback(unsigned long flags, const char *key,
 }
 
 bool
+replay_gain_ape_read(InputStream &is, ReplayGainInfo &info)
+{
+	bool found = false;
+
+	auto callback = [&info, &found]
+		(unsigned long flags, const char *key,
+		 StringView value) {
+		found |= replay_gain_ape_callback(flags, key,
+						  value,
+						  info);
+		return true;
+	};
+
+	return tag_ape_scan(is, callback) && found;
+}
+
+bool
 replay_gain_ape_read(Path path_fs, ReplayGainInfo &info)
 {
 	bool found = false;

src/tag/ApeReplayGain.hxx

@@ -22,10 +22,14 @@
 
 #include "check.h"
 
+class InputStream;
 class Path;
 struct ReplayGainInfo;
 
 bool
+replay_gain_ape_read(InputStream &is, ReplayGainInfo &info);
+
+bool
 replay_gain_ape_read(Path path_fs, ReplayGainInfo &info);
 
 #endif