diff --git a/src/tag/ApeReplayGain.cxx b/src/tag/ApeReplayGain.cxx
index 883885369..bfad3b07d 100644
--- a/src/tag/ApeReplayGain.cxx
+++ b/src/tag/ApeReplayGain.cxx
@@ -47,6 +47,23 @@ replay_gain_ape_callback(unsigned long flags, const char *key,
 	return ParseReplayGainTag(info, key, value);
 }
 
+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)
 {
diff --git a/src/tag/ApeReplayGain.hxx b/src/tag/ApeReplayGain.hxx
index faf68f0e3..0150aae3b 100644
--- a/src/tag/ApeReplayGain.hxx
+++ b/src/tag/ApeReplayGain.hxx
@@ -22,9 +22,13 @@
 
 #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);