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-rw-r--r--src/input/plugins/MmsInputPlugin.cxx117
1 files changed, 117 insertions, 0 deletions
diff --git a/src/input/plugins/MmsInputPlugin.cxx b/src/input/plugins/MmsInputPlugin.cxx
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index 000000000..d01cff3b3
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+++ 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,
+};