DecoderPlugin: pass Path instance to file_decode() and scan_file()

13 files changed, 91 insertions, 72 deletions

diff --git a/src/decoder/DecoderPlugin.hxx b/src/decoder/DecoderPlugin.hxx
index 3155be04b..716b01141 100644
--- a/src/decoder/DecoderPlugin.hxx
+++ b/src/decoder/DecoderPlugin.hxx
@@ -25,6 +25,7 @@
 struct config_param;
 struct InputStream;
 struct tag_handler;
+class Path;
 
 /**
  * Opaque handle which the decoder plugin passes to the functions in
@@ -65,14 +66,14 @@ struct DecoderPlugin {
 	 *
 	 * Either implement this method or stream_decode().
 	 */
-	void (*file_decode)(Decoder &decoder, const char *path_fs);
+	void (*file_decode)(Decoder &decoder, Path path_fs);
 
 	/**
 	 * Scan metadata of a file.
 	 *
 	 * @return false if the operation has failed
 	 */
-	bool (*scan_file)(const char *path_fs,
+	bool (*scan_file)(Path path_fs,
 			  const struct tag_handler *handler,
 			  void *handler_ctx);
 
@@ -95,7 +96,7 @@ struct DecoderPlugin {
 	 * a filename for every single track according to tnum (param 2)
 	 * do not include full pathname here, just the "virtual" file
 	 */
-	char* (*container_scan)(const char *path_fs, const unsigned int tnum);
+	char* (*container_scan)(Path path_fs, const unsigned int tnum);
 
 	/* last element in these arrays must always be a nullptr: */
 	const char *const*suffixes;
@@ -133,14 +134,16 @@ struct DecoderPlugin {
 	/**
 	 * Decode a file.
 	 */
-	void FileDecode(Decoder &decoder, const char *path_fs) const {
+	template<typename P>
+	void FileDecode(Decoder &decoder, P path_fs) const {
 		file_decode(decoder, path_fs);
 	}
 
 	/**
 	 * Read the tag of a file.
 	 */
-	bool ScanFile(const char *path_fs,
+	template<typename P>
+	bool ScanFile(P path_fs,
 		      const tag_handler &handler, void *handler_ctx) const {
 		return scan_file != nullptr
 			? scan_file(path_fs, &handler, handler_ctx)
@@ -160,7 +163,8 @@ struct DecoderPlugin {
 	/**
 	 * return "virtual" tracks in a container
 	 */
-	char *ContainerScan(const char *path, const unsigned int tnum) const {
+	template<typename P>
+	char *ContainerScan(P path, const unsigned int tnum) const {
 		return container_scan(path, tnum);
 	}
 
diff --git a/src/decoder/DecoderThread.cxx b/src/decoder/DecoderThread.cxx
index 4199b4269..37b45bd24 100644
--- a/src/decoder/DecoderThread.cxx
+++ b/src/decoder/DecoderThread.cxx
@@ -143,13 +143,13 @@ decoder_stream_decode(const DecoderPlugin &plugin,
 
 static bool
 decoder_file_decode(const DecoderPlugin &plugin,
-		    Decoder &decoder, const char *path)
+		    Decoder &decoder, Path path)
 {
 	assert(plugin.file_decode != nullptr);
 	assert(decoder.stream_tag == nullptr);
 	assert(decoder.decoder_tag == nullptr);
-	assert(path != nullptr);
-	assert(PathTraitsFS::IsAbsolute(path));
+	assert(!path.IsNull());
+	assert(path.IsAbsolute());
 	assert(decoder.dc.state == DecoderState::START);
 
 	FormatDebug(decoder_thread_domain, "probing plugin %s", plugin.name);
@@ -300,7 +300,7 @@ TryDecoderFile(Decoder &decoder, Path path_fs, const char *suffix,
 	if (plugin.file_decode != nullptr) {
 		dc.Lock();
 
-		if (decoder_file_decode(plugin, decoder, path_fs.c_str()))
+		if (decoder_file_decode(plugin, decoder, path_fs))
 			return true;
 
 		dc.Unlock();
diff --git a/src/decoder/plugins/AdPlugDecoderPlugin.cxx b/src/decoder/plugins/AdPlugDecoderPlugin.cxx
index c288d8cf4..32a2432f4 100644
--- a/src/decoder/plugins/AdPlugDecoderPlugin.cxx
+++ b/src/decoder/plugins/AdPlugDecoderPlugin.cxx
@@ -22,6 +22,7 @@
 #include "tag/TagHandler.hxx"
 #include "../DecoderAPI.hxx"
 #include "CheckAudioFormat.hxx"
+#include "fs/Path.hxx"
 #include "util/Error.hxx"
 #include "util/Macros.hxx"
 #include "Log.hxx"
@@ -48,12 +49,12 @@ adplug_init(const config_param &param)
 }
 
 static void
-adplug_file_decode(Decoder &decoder, const char *path_fs)
+adplug_file_decode(Decoder &decoder, Path path_fs)
 {
 	CEmuopl opl(sample_rate, true, true);
 	opl.init();
 
-	CPlayer *player = CAdPlug::factory(path_fs, &opl);
+	CPlayer *player = CAdPlug::factory(path_fs.c_str(), &opl);
 	if (player == nullptr)
 		return;
 
@@ -90,13 +91,13 @@ adplug_scan_tag(TagType type, const std::string &value,
 }
 
 static bool
-adplug_scan_file(const char *path_fs,
+adplug_scan_file(Path path_fs,
 		 const struct tag_handler *handler, void *handler_ctx)
 {
 	CEmuopl opl(sample_rate, true, true);
 	opl.init();
 
-	CPlayer *player = CAdPlug::factory(path_fs, &opl);
+	CPlayer *player = CAdPlug::factory(path_fs.c_str(), &opl);
 	if (player == nullptr)
 		return false;
 
diff --git a/src/decoder/plugins/AudiofileDecoderPlugin.cxx b/src/decoder/plugins/AudiofileDecoderPlugin.cxx
index 8a7f34dfe..262c4a5bf 100644
--- a/src/decoder/plugins/AudiofileDecoderPlugin.cxx
+++ b/src/decoder/plugins/AudiofileDecoderPlugin.cxx
@@ -23,6 +23,7 @@
 #include "input/InputStream.hxx"
 #include "CheckAudioFormat.hxx"
 #include "tag/TagHandler.hxx"
+#include "fs/Path.hxx"
 #include "util/Error.hxx"
 #include "util/Domain.hxx"
 #include "Log.hxx"
@@ -37,10 +38,12 @@
 
 static constexpr Domain audiofile_domain("audiofile");
 
-static int audiofile_get_duration(const char *file)
+gcc_pure
+static int
+audiofile_get_duration(Path path_fs)
 {
 	int total_time;
-	AFfilehandle af_fp = afOpenFile(file, "r", nullptr);
+	AFfilehandle af_fp = afOpenFile(path_fs.c_str(), "r", nullptr);
 	if (af_fp == AF_NULL_FILEHANDLE) {
 		return -1;
 	}
@@ -227,15 +230,15 @@ audiofile_stream_decode(Decoder &decoder, InputStream &is)
 }
 
 static bool
-audiofile_scan_file(const char *file,
+audiofile_scan_file(Path path_fs,
 		    const struct tag_handler *handler, void *handler_ctx)
 {
-	int total_time = audiofile_get_duration(file);
+	int total_time = audiofile_get_duration(path_fs);
 
 	if (total_time < 0) {
 		FormatWarning(audiofile_domain,
 			      "Failed to get total song time from: %s",
-			      file);
+			      path_fs.c_str());
 		return false;
 	}
 
diff --git a/src/decoder/plugins/FlacDecoderPlugin.cxx b/src/decoder/plugins/FlacDecoderPlugin.cxx
index 17949f8c5..c39aeadd9 100644
--- a/src/decoder/plugins/FlacDecoderPlugin.cxx
+++ b/src/decoder/plugins/FlacDecoderPlugin.cxx
@@ -23,6 +23,7 @@
 #include "FlacCommon.hxx"
 #include "FlacMetadata.hxx"
 #include "OggCodec.hxx"
+#include "fs/Path.hxx"
 #include "util/Error.hxx"
 #include "Log.hxx"
 
@@ -79,11 +80,11 @@ flac_write_cb(const FLAC__StreamDecoder *dec, const FLAC__Frame *frame,
 }
 
 static bool
-flac_scan_file(const char *file,
+flac_scan_file(Path path_fs,
 	       const struct tag_handler *handler, void *handler_ctx)
 {
 	FlacMetadataChain chain;
-	if (!chain.Read(file)) {
+	if (!chain.Read(path_fs.c_str())) {
 		FormatDebug(flac_domain,
 			    "Failed to read FLAC tags: %s",
 			    chain.GetStatusString());
@@ -293,11 +294,11 @@ oggflac_init(gcc_unused const config_param &param)
 }
 
 static bool
-oggflac_scan_file(const char *file,
+oggflac_scan_file(Path path_fs,
 		  const struct tag_handler *handler, void *handler_ctx)
 {
 	FlacMetadataChain chain;
-	if (!chain.ReadOgg(file)) {
+	if (!chain.ReadOgg(path_fs.c_str())) {
 		FormatDebug(flac_domain,
 			    "Failed to read OggFLAC tags: %s",
 			    chain.GetStatusString());
diff --git a/src/decoder/plugins/FluidsynthDecoderPlugin.cxx b/src/decoder/plugins/FluidsynthDecoderPlugin.cxx
index 3b4703e97..bdf30baea 100644
--- a/src/decoder/plugins/FluidsynthDecoderPlugin.cxx
+++ b/src/decoder/plugins/FluidsynthDecoderPlugin.cxx
@@ -21,6 +21,7 @@
 #include "FluidsynthDecoderPlugin.hxx"
 #include "../DecoderAPI.hxx"
 #include "CheckAudioFormat.hxx"
+#include "fs/Path.hxx"
 #include "util/Error.hxx"
 #include "util/Domain.hxx"
 #include "util/Macros.hxx"
@@ -92,7 +93,7 @@ fluidsynth_init(const config_param &param)
 }
 
 static void
-fluidsynth_file_decode(Decoder &decoder, const char *path_fs)
+fluidsynth_file_decode(Decoder &decoder, Path path_fs)
 {
 	char setting_sample_rate[] = "synth.sample-rate";
 	/*
@@ -141,7 +142,7 @@ fluidsynth_file_decode(Decoder &decoder, const char *path_fs)
 		return;
 	}
 
-	ret = fluid_player_add(player, path_fs);
+	ret = fluid_player_add(player, path_fs.c_str());
 	if (ret != 0) {
 		LogWarning(fluidsynth_domain, "fluid_player_add() failed");
 		delete_fluid_player(player);
@@ -198,11 +199,11 @@ fluidsynth_file_decode(Decoder &decoder, const char *path_fs)
 }
 
 static bool
-fluidsynth_scan_file(const char *file,
+fluidsynth_scan_file(Path path_fs,
 		     gcc_unused const struct tag_handler *handler,
 		     gcc_unused void *handler_ctx)
 {
-	return fluid_is_midifile(file);
+	return fluid_is_midifile(path_fs.c_str());
 }
 
 static const char *const fluidsynth_suffixes[] = {
diff --git a/src/decoder/plugins/GmeDecoderPlugin.cxx b/src/decoder/plugins/GmeDecoderPlugin.cxx
index 53015facf..d85be3a39 100644
--- a/src/decoder/plugins/GmeDecoderPlugin.cxx
+++ b/src/decoder/plugins/GmeDecoderPlugin.cxx
@@ -22,6 +22,7 @@
 #include "../DecoderAPI.hxx"
 #include "CheckAudioFormat.hxx"
 #include "tag/TagHandler.hxx"
+#include "fs/Path.hxx"
 #include "util/Alloc.hxx"
 #include "util/FormatString.hxx"
 #include "util/UriUtil.hxx"
@@ -51,10 +52,10 @@ static constexpr unsigned GME_BUFFER_SAMPLES =
  * suffix
  */
 static char *
-get_container_name(const char *path_fs)
+get_container_name(Path path_fs)
 {
-	const char *subtune_suffix = uri_get_suffix(path_fs);
-	char *path_container = xstrdup(path_fs);
+	const char *subtune_suffix = uri_get_suffix(path_fs.c_str());
+	char *path_container = xstrdup(path_fs.c_str());
 
 	char pat[64];
 	snprintf(pat, sizeof(pat), "%s%s",
@@ -80,9 +81,9 @@ get_container_name(const char *path_fs)
  * is appended.
  */
 static int
-get_song_num(const char *path_fs)
+get_song_num(Path path_fs)
 {
-	const char *subtune_suffix = uri_get_suffix(path_fs);
+	const char *subtune_suffix = uri_get_suffix(path_fs.c_str());
 
 	char pat[64];
 	snprintf(pat, sizeof(pat), "%s%s",
@@ -91,8 +92,8 @@ get_song_num(const char *path_fs)
 	GPatternSpec *path_with_subtune = g_pattern_spec_new(pat);
 
 	if (g_pattern_match(path_with_subtune,
-			    strlen(path_fs), path_fs, nullptr)) {
-		char *sub = g_strrstr(path_fs, "/" SUBTUNE_PREFIX);
+			    path_fs.length(), path_fs.data(), nullptr)) {
+		char *sub = g_strrstr(path_fs.c_str(), "/" SUBTUNE_PREFIX);
 		g_pattern_spec_free(path_with_subtune);
 		if (!sub)
 			return 0;
@@ -108,10 +109,11 @@ get_song_num(const char *path_fs)
 }
 
 static char *
-gme_container_scan(const char *path_fs, const unsigned int tnum)
+gme_container_scan(Path path_fs, const unsigned int tnum)
 {
 	Music_Emu *emu;
-	const char *gme_err = gme_open_file(path_fs, &emu, GME_SAMPLE_RATE);
+	const char *gme_err = gme_open_file(path_fs.c_str(), &emu,
+					    GME_SAMPLE_RATE);
 	if (gme_err != nullptr) {
 		LogWarning(gme_domain, gme_err);
 		return nullptr;
@@ -122,7 +124,7 @@ gme_container_scan(const char *path_fs, const unsigned int tnum)
 	if (num_songs < 2)
 		return nullptr;
 
-	const char *subtune_suffix = uri_get_suffix(path_fs);
+	const char *subtune_suffix = uri_get_suffix(path_fs.c_str());
 	if (tnum <= num_songs){
 		return FormatNew(SUBTUNE_PREFIX "%03u.%s",
 				 tnum, subtune_suffix);
@@ -131,7 +133,7 @@ gme_container_scan(const char *path_fs, const unsigned int tnum)
 }
 
 static void
-gme_file_decode(Decoder &decoder, const char *path_fs)
+gme_file_decode(Decoder &decoder, Path path_fs)
 {
 	char *path_container = get_container_name(path_fs);
 
@@ -207,7 +209,7 @@ gme_file_decode(Decoder &decoder, const char *path_fs)
 }
 
 static bool
-gme_scan_file(const char *path_fs,
+gme_scan_file(Path path_fs,
 	      const struct tag_handler *handler, void *handler_ctx)
 {
 	char *path_container = get_container_name(path_fs);
diff --git a/src/decoder/plugins/MikmodDecoderPlugin.cxx b/src/decoder/plugins/MikmodDecoderPlugin.cxx
index aacb5922d..a1938617d 100644
--- a/src/decoder/plugins/MikmodDecoderPlugin.cxx
+++ b/src/decoder/plugins/MikmodDecoderPlugin.cxx
@@ -22,6 +22,7 @@
 #include "../DecoderAPI.hxx"
 #include "tag/TagHandler.hxx"
 #include "system/FatalError.hxx"
+#include "fs/Path.hxx"
 #include "util/Domain.hxx"
 #include "Log.hxx"
 
@@ -146,11 +147,11 @@ mikmod_decoder_finish(void)
 }
 
 static void
-mikmod_decoder_file_decode(Decoder &decoder, const char *path_fs)
+mikmod_decoder_file_decode(Decoder &decoder, Path path_fs)
 {
 	/* deconstify the path because libmikmod wants a non-const
 	   string pointer */
-	char *const path2 = const_cast<char *>(path_fs);
+	char *const path2 = const_cast<char *>(path_fs.c_str());
 
 	MODULE *handle;
 	int ret;
@@ -160,7 +161,7 @@ mikmod_decoder_file_decode(Decoder &decoder, const char *path_fs)
 
 	if (handle == nullptr) {
 		FormatError(mikmod_domain,
-			    "failed to open mod: %s", path_fs);
+			    "failed to open mod: %s", path_fs.c_str());
 		return;
 	}
 
@@ -184,18 +185,18 @@ mikmod_decoder_file_decode(Decoder &decoder, const char *path_fs)
 }
 
 static bool
-mikmod_decoder_scan_file(const char *path_fs,
+mikmod_decoder_scan_file(Path path_fs,
 			 const struct tag_handler *handler, void *handler_ctx)
 {
 	/* deconstify the path because libmikmod wants a non-const
 	   string pointer */
-	char *const path2 = const_cast<char *>(path_fs);
+	char *const path2 = const_cast<char *>(path_fs.c_str());
 
 	MODULE *handle = Player_Load(path2, 128, 0);
 
 	if (handle == nullptr) {
 		FormatDebug(mikmod_domain,
-			    "Failed to open file: %s", path_fs);
+			    "Failed to open file: %s", path_fs.c_str());
 		return false;
 	}
 
diff --git a/src/decoder/plugins/Mpg123DecoderPlugin.cxx b/src/decoder/plugins/Mpg123DecoderPlugin.cxx
index cf8573c85..76702a08f 100644
--- a/src/decoder/plugins/Mpg123DecoderPlugin.cxx
+++ b/src/decoder/plugins/Mpg123DecoderPlugin.cxx
@@ -22,6 +22,7 @@
 #include "../DecoderAPI.hxx"
 #include "CheckAudioFormat.hxx"
 #include "tag/TagHandler.hxx"
+#include "fs/Path.hxx"
 #include "util/Error.hxx"
 #include "util/Domain.hxx"
 #include "Log.hxx"
@@ -103,7 +104,7 @@ mpd_mpg123_open(mpg123_handle *handle, const char *path_fs,
 }
 
 static void
-mpd_mpg123_file_decode(Decoder &decoder, const char *path_fs)
+mpd_mpg123_file_decode(Decoder &decoder, Path path_fs)
 {
 	mpg123_handle *handle;
 	int error;
@@ -121,7 +122,7 @@ mpd_mpg123_file_decode(Decoder &decoder, const char *path_fs)
 	}
 
 	AudioFormat audio_format;
-	if (!mpd_mpg123_open(handle, path_fs, audio_format)) {
+	if (!mpd_mpg123_open(handle, path_fs.c_str(), audio_format)) {
 		mpg123_delete(handle);
 		return;
 	}
@@ -199,7 +200,7 @@ mpd_mpg123_file_decode(Decoder &decoder, const char *path_fs)
 }
 
 static bool
-mpd_mpg123_scan_file(const char *path_fs,
+mpd_mpg123_scan_file(Path path_fs,
 		     const struct tag_handler *handler, void *handler_ctx)
 {
 	mpg123_handle *handle;
@@ -215,7 +216,7 @@ mpd_mpg123_scan_file(const char *path_fs,
 	}
 
 	AudioFormat audio_format;
-	if (!mpd_mpg123_open(handle, path_fs, audio_format)) {
+	if (!mpd_mpg123_open(handle, path_fs.c_str(), audio_format)) {
 		mpg123_delete(handle);
 		return false;
 	}
diff --git a/src/decoder/plugins/SidplayDecoderPlugin.cxx b/src/decoder/plugins/SidplayDecoderPlugin.cxx
index 8b3e3f8c0..4ae9bc8cd 100644
--- a/src/decoder/plugins/SidplayDecoderPlugin.cxx
+++ b/src/decoder/plugins/SidplayDecoderPlugin.cxx
@@ -21,6 +21,7 @@
 #include "SidplayDecoderPlugin.hxx"
 #include "../DecoderAPI.hxx"
 #include "tag/TagHandler.hxx"
+#include "fs/Path.hxx"
 #include "util/Alloc.hxx"
 #include "util/Domain.hxx"
 #include "system/ByteOrder.hxx"
@@ -120,9 +121,9 @@ sidplay_finish()
  * suffix
  */
 static char *
-get_container_name(const char *path_fs)
+get_container_name(Path path_fs)
 {
-	char *path_container = strdup(path_fs);
+	char *path_container = strdup(path_fs.c_str());
 
 	if(!g_pattern_match(path_with_subtune,
 		strlen(path_container), path_container, nullptr))
@@ -159,7 +160,7 @@ get_song_num(const char *path_fs)
 
 /* get the song length in seconds */
 static int
-get_song_length(const char *path_fs)
+get_song_length(Path path_fs)
 {
 	if (songlength_database == nullptr)
 		return -1;
@@ -175,7 +176,7 @@ get_song_length(const char *path_fs)
 	char md5sum[SIDTUNE_MD5_LENGTH+1];
 	tune.createMD5(md5sum);
 
-	const unsigned song_num = get_song_num(path_fs);
+	const unsigned song_num = get_song_num(path_fs.c_str());
 
 	gsize num_items;
 	gchar **values=g_key_file_get_string_list(songlength_database,
@@ -202,7 +203,7 @@ get_song_length(const char *path_fs)
 }
 
 static void
-sidplay_file_decode(Decoder &decoder, const char *path_fs)
+sidplay_file_decode(Decoder &decoder, Path path_fs)
 {
 	int channels;
 
@@ -216,7 +217,7 @@ sidplay_file_decode(Decoder &decoder, const char *path_fs)
 		return;
 	}
 
-	int song_num=get_song_num(path_fs);
+	const int song_num = get_song_num(path_fs.c_str());
 	tune.selectSong(song_num);
 
 	int song_len=get_song_length(path_fs);
@@ -340,10 +341,10 @@ sidplay_file_decode(Decoder &decoder, const char *path_fs)
 }
 
 static bool
-sidplay_scan_file(const char *path_fs,
+sidplay_scan_file(Path path_fs,
 		  const struct tag_handler *handler, void *handler_ctx)
 {
-	int song_num=get_song_num(path_fs);
+	const int song_num = get_song_num(path_fs.c_str());
 	char *path_container=get_container_name(path_fs);
 
 	SidTune tune(path_container, nullptr, true);
@@ -389,9 +390,9 @@ sidplay_scan_file(const char *path_fs,
 }
 
 static char *
-sidplay_container_scan(const char *path_fs, const unsigned int tnum)
+sidplay_container_scan(Path path_fs, const unsigned int tnum)
 {
-	SidTune tune(path_fs, nullptr, true);
+	SidTune tune(path_fs.c_str(), nullptr, true);
 	if (!tune)
 		return nullptr;
 
diff --git a/src/decoder/plugins/SndfileDecoderPlugin.cxx b/src/decoder/plugins/SndfileDecoderPlugin.cxx
index 886c56748..72ea77d15 100644
--- a/src/decoder/plugins/SndfileDecoderPlugin.cxx
+++ b/src/decoder/plugins/SndfileDecoderPlugin.cxx
@@ -23,6 +23,7 @@
 #include "input/InputStream.hxx"
 #include "CheckAudioFormat.hxx"
 #include "tag/TagHandler.hxx"
+#include "fs/Path.hxx"
 #include "util/Error.hxx"
 #include "util/Domain.hxx"
 #include "Log.hxx"
@@ -173,7 +174,7 @@ sndfile_stream_decode(Decoder &decoder, InputStream &is)
 }
 
 static bool
-sndfile_scan_file(const char *path_fs,
+sndfile_scan_file(Path path_fs,
 		  const struct tag_handler *handler, void *handler_ctx)
 {
 	SNDFILE *sf;
@@ -182,14 +183,14 @@ sndfile_scan_file(const char *path_fs,
 
 	info.format = 0;
 
-	sf = sf_open(path_fs, SFM_READ, &info);
+	sf = sf_open(path_fs.c_str(), SFM_READ, &info);
 	if (sf == nullptr)
 		return false;
 
 	if (!audio_valid_sample_rate(info.samplerate)) {
 		sf_close(sf);
 		FormatWarning(sndfile_domain,
-			      "Invalid sample rate in %s", path_fs);
+			      "Invalid sample rate in %s", path_fs.c_str());
 		return false;
 	}
 
diff --git a/src/decoder/plugins/WavpackDecoderPlugin.cxx b/src/decoder/plugins/WavpackDecoderPlugin.cxx
index e65d374d2..27bede56c 100644
--- a/src/decoder/plugins/WavpackDecoderPlugin.cxx
+++ b/src/decoder/plugins/WavpackDecoderPlugin.cxx
@@ -24,6 +24,7 @@
 #include "CheckAudioFormat.hxx"
 #include "tag/TagHandler.hxx"
 #include "tag/ApeTag.hxx"
+#include "fs/Path.hxx"
 #include "util/Error.hxx"
 #include "util/Domain.hxx"
 #include "util/Macros.hxx"
@@ -269,15 +270,16 @@ wavpack_scan_pair(WavpackContext *wpc, const char *name,
  * Reads metainfo from the specified file.
  */
 static bool
-wavpack_scan_file(const char *fname,
+wavpack_scan_file(Path path_fs,
 		  const struct tag_handler *handler, void *handler_ctx)
 {
 	char error[ERRORLEN];
-	WavpackContext *wpc = WavpackOpenFileInput(fname, error, OPEN_TAGS, 0);
+	WavpackContext *wpc = WavpackOpenFileInput(path_fs.c_str(), error,
+						   OPEN_TAGS, 0);
 	if (wpc == nullptr) {
 		FormatError(wavpack_domain,
 			    "failed to open WavPack file \"%s\": %s",
-			    fname, error);
+			    path_fs.c_str(), error);
 		return false;
 	}
 
@@ -525,16 +527,16 @@ wavpack_streamdecode(Decoder &decoder, InputStream &is)
  * Decodes a file.
  */
 static void
-wavpack_filedecode(Decoder &decoder, const char *fname)
+wavpack_filedecode(Decoder &decoder, Path path_fs)
 {
 	char error[ERRORLEN];
-	WavpackContext *wpc = WavpackOpenFileInput(fname, error,
+	WavpackContext *wpc = WavpackOpenFileInput(path_fs.c_str(), error,
 						   OPEN_TAGS | OPEN_WVC | OPEN_NORMALIZE,
 						   23);
 	if (wpc == nullptr) {
 		FormatWarning(wavpack_domain,
 			      "failed to open WavPack file \"%s\": %s",
-			      fname, error);
+			      path_fs.c_str(), error);
 		return;
 	}
 
diff --git a/src/decoder/plugins/WildmidiDecoderPlugin.cxx b/src/decoder/plugins/WildmidiDecoderPlugin.cxx
index 9a6018022..a3a4b2745 100644
--- a/src/decoder/plugins/WildmidiDecoderPlugin.cxx
+++ b/src/decoder/plugins/WildmidiDecoderPlugin.cxx
@@ -25,6 +25,7 @@
 #include "util/Domain.hxx"
 #include "fs/AllocatedPath.hxx"
 #include "fs/FileSystem.hxx"
+#include "fs/Path.hxx"
 #include "system/FatalError.hxx"
 #include "Log.hxx"
 
@@ -65,7 +66,7 @@ wildmidi_finish(void)
 }
 
 static void
-wildmidi_file_decode(Decoder &decoder, const char *path_fs)
+wildmidi_file_decode(Decoder &decoder, Path path_fs)
 {
 	static constexpr AudioFormat audio_format = {
 		WILDMIDI_SAMPLE_RATE,
@@ -75,7 +76,7 @@ wildmidi_file_decode(Decoder &decoder, const char *path_fs)
 	midi *wm;
 	const struct _WM_Info *info;
 
-	wm = WildMidi_Open(path_fs);
+	wm = WildMidi_Open(path_fs.c_str());
 	if (wm == nullptr)
 		return;
 
@@ -118,10 +119,10 @@ wildmidi_file_decode(Decoder &decoder, const char *path_fs)
 }
 
 static bool
-wildmidi_scan_file(const char *path_fs,
+wildmidi_scan_file(Path path_fs,
 		   const struct tag_handler *handler, void *handler_ctx)
 {
-	midi *wm = WildMidi_Open(path_fs);
+	midi *wm = WildMidi_Open(path_fs.c_str());
 	if (wm == nullptr)
 		return false;