2 files changed, 4 insertions, 5 deletions
diff --git a/src/codecs/include/codec.hpp b/src/codecs/include/codec.hpp
index 9dd717c9..c8a68ff3 100644
--- a/src/codecs/include/codec.hpp
+++ b/src/codecs/include/codec.hpp
@@ -11,6 +11,7 @@
 #include <cstddef>
 #include <cstdint>
 #include <memory>
+#include <optional>
 #include <string>
 #include <utility>
 
@@ -32,7 +33,7 @@ class ICodec {
     uint32_t sample_rate_hz;
   };
 
-  virtual auto GetOutputFormat() -> OutputFormat = 0;
+  virtual auto GetOutputFormat() -> std::optional<OutputFormat> = 0;
 
   enum ProcessingError { MALFORMED_DATA };
 
diff --git a/src/codecs/include/mad.hpp b/src/codecs/include/mad.hpp
index 3b1f5757..ea16cdc8 100644
--- a/src/codecs/include/mad.hpp
+++ b/src/codecs/include/mad.hpp
@@ -8,6 +8,7 @@
 
 #include <cstddef>
 #include <cstdint>
+#include <optional>
 #include <string>
 #include <utility>
 
@@ -24,7 +25,7 @@ class MadMp3Decoder : public ICodec {
   ~MadMp3Decoder();
 
   auto CanHandleType(StreamType type) -> bool override;
-  auto GetOutputFormat() -> OutputFormat override;
+  auto GetOutputFormat() -> std::optional<OutputFormat> override;
   auto ResetForNewStream() -> void override;
   auto SetInput(cpp::span<const std::byte> input) -> void override;
   auto GetInputPosition() -> std::size_t override;
@@ -37,9 +38,6 @@ class MadMp3Decoder : public ICodec {
   mad_frame frame_;
   mad_synth synth_;
 
-  mad_header header_;
-  bool has_decoded_header_;
-
   int current_sample_;
 };