input/Plugin: pass URI as std::string_view

src/decoder/Bridge.cxx

@@ -372,7 +372,7 @@ DecoderBridge::SeekError() noexcept
 }
 
 InputStreamPtr
-DecoderBridge::OpenUri(const char *uri)
+DecoderBridge::OpenUri(std::string_view uri)
 {
 	assert(dc.state == DecoderState::START ||
 	       dc.state == DecoderState::DECODE);

src/decoder/Bridge.hxx

@@ -158,7 +158,7 @@ public:
 	SongTime GetSeekTime() noexcept override;
 	uint64_t GetSeekFrame() noexcept override;
 	void SeekError() noexcept override;
-	InputStreamPtr OpenUri(const char *uri) override;
+	InputStreamPtr OpenUri(std::string_view uri) override;
 	size_t Read(InputStream &is,
 		    std::span<std::byte> dest) noexcept override;
 	void SubmitTimestamp(FloatDuration t) noexcept override;

src/decoder/Client.hxx

@@ -10,6 +10,7 @@
 #include <cstddef>
 #include <cstdint>
 #include <span>
+#include <string_view>
 
 struct AudioFormat;
 struct Tag;
@@ -80,7 +81,7 @@ public:
 	 *
 	 * Throws std::runtime_error on error.
 	 */
-	virtual InputStreamPtr OpenUri(const char *uri) = 0;
+	virtual InputStreamPtr OpenUri(std::string_view uri) = 0;
 
 	/**
 	 * Blocking read from the input stream.

src/decoder/Thread.cxx

@@ -227,7 +227,7 @@ decoder_run_stream_plugin(DecoderBridge &bridge, InputStream &is,
 static DecodeResult
 decoder_run_stream_locked(DecoderBridge &bridge, InputStream &is,
 			  std::unique_lock<Mutex> &lock,
-			  const char *uri)
+			  std::string_view uri)
 {
 	const auto suffix = uri_get_suffix(uri);
 

src/decoder/plugins/WavpackDecoderPlugin.cxx

@@ -11,7 +11,6 @@
 #include "fs/Path.hxx"
 #include "lib/fmt/PathFormatter.hxx"
 #include "lib/fmt/RuntimeError.hxx"
-#include "util/AllocatedString.hxx"
 #include "util/Math.hxx"
 #include "util/ScopeExit.hxx"
 
@@ -407,10 +406,8 @@ static constexpr WavpackStreamReader64 mpd_is_reader = {
 static InputStreamPtr
 wavpack_open_wvc(DecoderClient &client, std::string_view uri)
 {
-	const AllocatedString wvc_url{uri, "c"sv};
-
 	try {
-		return client.OpenUri(wvc_url.c_str());
+		return client.OpenUri(fmt::format("{}c", uri));
 	} catch (...) {
 		return nullptr;
 	}