input/Plugin: add attribute prefixes

src/input/plugins/AlsaInputPlugin.cxx

@@ -409,8 +409,14 @@ alsa_input_open(const char *uri, Mutex &mutex)
 				       mutex);
 }
 
+static constexpr const char *alsa_prefixes[] = {
+	"alsa://",
+	nullptr
+};
+
 const struct InputPlugin input_plugin_alsa = {
 	"alsa",
+	alsa_prefixes,
 	alsa_input_init,
 	nullptr,
 	alsa_input_open,

src/input/plugins/CdioParanoiaInputPlugin.cxx

@@ -357,8 +357,14 @@ CdioParanoiaInputStream::IsEOF() noexcept
 	return lsn_from + lsn_relofs > lsn_to;
 }
 
+static constexpr const char *cdio_paranoia_prefixes[] = {
+	"cdda://",
+	nullptr
+};
+
 const InputPlugin input_plugin_cdio_paranoia = {
 	"cdio_paranoia",
+	cdio_paranoia_prefixes,
 	input_cdio_init,
 	nullptr,
 	input_cdio_open,

src/input/plugins/CurlInputPlugin.cxx

@@ -473,8 +473,15 @@ input_curl_open(const char *url, Mutex &mutex)
 	return CurlInputStream::Open(url, {}, mutex);
 }
 
+static constexpr const char *curl_prefixes[] = {
+	"http://",
+	"https://",
+	nullptr
+};
+
 const struct InputPlugin input_plugin_curl = {
 	"curl",
+	curl_prefixes,
 	input_curl_init,
 	input_curl_finish,
 	input_curl_open,

src/input/plugins/FfmpegInputPlugin.cxx

@@ -85,14 +85,6 @@ static InputStreamPtr
 input_ffmpeg_open(const char *uri,
 		  Mutex &mutex)
 {
-	if (!StringStartsWithCaseASCII(uri, "gopher://") &&
-	    !StringStartsWithCaseASCII(uri, "rtp://") &&
-	    !StringStartsWithCaseASCII(uri, "rtsp://") &&
-	    !StringStartsWithCaseASCII(uri, "rtmp://") &&
-	    !StringStartsWithCaseASCII(uri, "rtmpt://") &&
-	    !StringStartsWithCaseASCII(uri, "rtmps://"))
-		return nullptr;
-
 	AVIOContext *h;
 	auto result = avio_open(&h, uri, AVIO_FLAG_READ);
 	if (result != 0)
@@ -146,8 +138,19 @@ FfmpegInputStream::Seek(offset_type new_offset)
 	eof = false;
 }
 
+static constexpr const char *ffmpeg_prefixes[] = {
+	"gopher://",
+	"rtp://",
+	"rtsp://",
+	"rtmp://",
+	"rtmpt://",
+	"rtmps://",
+	nullptr
+};
+
 const InputPlugin input_plugin_ffmpeg = {
 	"ffmpeg",
+	ffmpeg_prefixes,
 	input_ffmpeg_init,
 	nullptr,
 	input_ffmpeg_open,

src/input/plugins/MmsInputPlugin.cxx

@@ -72,12 +72,6 @@ static InputStreamPtr
 input_mms_open(const char *url,
 	       Mutex &mutex)
 {
-	if (!StringStartsWithCaseASCII(url, "mms://") &&
-	    !StringStartsWithCaseASCII(url, "mmsh://") &&
-	    !StringStartsWithCaseASCII(url, "mmst://") &&
-	    !StringStartsWithCaseASCII(url, "mmsu://"))
-		return nullptr;
-
 	auto m = std::make_unique<MmsInputStream>(url, mutex);
 	m->Start();
 	return m;
@@ -103,8 +97,17 @@ MmsInputStream::ThreadRead(void *ptr, size_t read_size)
 	return (size_t)nbytes;
 }
 
+static constexpr const char *mms_prefixes[] = {
+	"mms://",
+	"mmsh://",
+	"mmst://",
+	"mmsu://",
+	nullptr
+};
+
 const InputPlugin input_plugin_mms = {
 	"mms",
+	mms_prefixes,
 	nullptr,
 	nullptr,
 	input_mms_open,

src/input/plugins/NfsInputPlugin.cxx

@@ -217,16 +217,19 @@ static InputStreamPtr
 input_nfs_open(const char *uri,
 	       Mutex &mutex)
 {
-	if (!StringStartsWithCaseASCII(uri, "nfs://"))
-		return nullptr;
-
 	auto is = std::make_unique<NfsInputStream>(uri, mutex);
 	is->Open();
 	return is;
 }
 
+static constexpr const char *nfs_prefixes[] = {
+	"nfs://",
+	nullptr
+};
+
 const InputPlugin input_plugin_nfs = {
 	"nfs",
+	nfs_prefixes,
 	input_nfs_init,
 	input_nfs_finish,
 	input_nfs_open,

src/input/plugins/QobuzInputPlugin.cxx

@@ -209,8 +209,14 @@ ScanQobuzTags(const char *uri, RemoteTagHandler &handler)
 						 handler);
 }
 
+static constexpr const char *qobuz_prefixes[] = {
+	"qobuz://",
+	nullptr
+};
+
 const InputPlugin qobuz_input_plugin = {
 	"qobuz",
+	qobuz_prefixes,
 	InitQobuzInput,
 	FinishQobuzInput,
 	OpenQobuzInput,

src/input/plugins/SmbclientInputPlugin.cxx

@@ -87,9 +87,6 @@ static InputStreamPtr
 input_smbclient_open(const char *uri,
 		     Mutex &mutex)
 {
-	if (!StringStartsWithCaseASCII(uri, "smb://"))
-		return nullptr;
-
 	const std::lock_guard<Mutex> protect(smbclient_mutex);
 
 	SMBCCTX *ctx = smbc_new_context();
@@ -158,8 +155,14 @@ SmbclientInputStream::Seek(offset_type new_offset)
 	offset = result;
 }
 
+static constexpr const char *smbclient_prefixes[] = {
+	"smb://",
+	nullptr
+};
+
 const InputPlugin input_plugin_smbclient = {
 	"smbclient",
+	smbclient_prefixes,
 	input_smbclient_init,
 	nullptr,
 	input_smbclient_open,

src/input/plugins/TidalInputPlugin.cxx

@@ -239,8 +239,14 @@ ScanTidalTags(const char *uri, RemoteTagHandler &handler)
 						 track_id, handler);
 }
 
+static constexpr const char *tidal_prefixes[] = {
+	"tidal://",
+	nullptr
+};
+
 const InputPlugin tidal_input_plugin = {
 	"tidal",
+	tidal_prefixes,
 	InitTidalInput,
 	FinishTidalInput,
 	OpenTidalInput,