1 files changed, 117 insertions, 0 deletions
diff --git a/src/input/plugins/MmsInputPlugin.cxx b/src/input/plugins/MmsInputPlugin.cxx
new file mode 100644
index 000000000..d01cff3b3
--- /dev/null
+++ b/src/input/plugins/MmsInputPlugin.cxx
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2003-2014 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "MmsInputPlugin.hxx"
+#include "input/ThreadInputStream.hxx"
+#include "input/InputPlugin.hxx"
+#include "util/StringUtil.hxx"
+#include "util/Error.hxx"
+#include "util/Domain.hxx"
+
+#include <libmms/mmsx.h>
+
+static constexpr size_t MMS_BUFFER_SIZE = 256 * 1024;
+
+class MmsInputStream final : public ThreadInputStream {
+	mmsx_t *mms;
+
+public:
+	MmsInputStream(const char *_uri, Mutex &_mutex, Cond &_cond)
+		:ThreadInputStream(input_plugin_mms.name, _uri, _mutex, _cond,
+				   MMS_BUFFER_SIZE) {
+	}
+
+protected:
+	virtual bool Open(gcc_unused Error &error) override;
+	virtual size_t ThreadRead(void *ptr, size_t size,
+				  Error &error) override;
+
+	void Close() override {
+		mmsx_close(mms);
+	}
+};
+
+static constexpr Domain mms_domain("mms");
+
+bool
+MmsInputStream::Open(Error &error)
+{
+	Unlock();
+
+	mms = mmsx_connect(nullptr, nullptr, GetURI(), 128 * 1024);
+	if (mms == nullptr) {
+		Lock();
+		error.Set(mms_domain, "mmsx_connect() failed");
+		return false;
+	}
+
+	Lock();
+
+	/* TODO: is this correct?  at least this selects the ffmpeg
+	   decoder, which seems to work fine */
+	SetMimeType("audio/x-ms-wma");
+	return true;
+}
+
+static InputStream *
+input_mms_open(const char *url,
+	       Mutex &mutex, Cond &cond,
+	       Error &error)
+{
+	if (!StringStartsWith(url, "mms://") &&
+	    !StringStartsWith(url, "mmsh://") &&
+	    !StringStartsWith(url, "mmst://") &&
+	    !StringStartsWith(url, "mmsu://"))
+		return nullptr;
+
+	auto m = new MmsInputStream(url, mutex, cond);
+	auto is = m->Start(error);
+	if (is == nullptr)
+		delete m;
+
+	return is;
+}
+
+size_t
+MmsInputStream::ThreadRead(void *ptr, size_t read_size, Error &error)
+{
+	/* unfortunately, mmsx_read() blocks until the whole buffer
+	   has been filled; to avoid big latencies, limit the size of
+	   each chunk we read to a reasonable size */
+	constexpr size_t MAX_CHUNK = 16384;
+	if (read_size > MAX_CHUNK)
+		read_size = MAX_CHUNK;
+
+	int nbytes = mmsx_read(nullptr, mms, (char *)ptr, read_size);
+	if (nbytes <= 0) {
+		if (nbytes < 0)
+			error.SetErrno("mmsx_read() failed");
+		return 0;
+	}
+
+	return (size_t)nbytes;
+}
+
+const InputPlugin input_plugin_mms = {
+	"mms",
+	nullptr,
+	nullptr,
+	input_mms_open,
+};