added support for the MMS protocol

This patch implements the MMS protocol, by using libmms.  It is quite
experimental: it does not support seeking yet, and it is currently
using synchronous I/O, which causes MPD to hang while waiting for the
server.

1 files changed, 120 insertions, 0 deletions

diff --git a/src/input_mms.c b/src/input_mms.c
new file mode 100644
index 000000000..f9b2edeaa
--- /dev/null
+++ b/src/input_mms.c
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2003-2009 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "input_mms.h"
+#include "input_stream.h"
+
+#include <glib.h>
+#include <libmms/mmsx.h>
+
+#include <string.h>
+#include <errno.h>
+
+struct input_mms {
+	mmsx_t *mms;
+
+	bool eof;
+};
+
+static bool
+input_mms_open(struct input_stream *is, const char *url)
+{
+	struct input_mms *m;
+
+	if (!g_str_has_prefix(url, "mms://") &&
+	    !g_str_has_prefix(url, "mmsh://") &&
+	    !g_str_has_prefix(url, "mmst://") &&
+	    !g_str_has_prefix(url, "mmsu://"))
+		return false;
+
+	m = g_new(struct input_mms, 1);
+	m->mms = mmsx_connect(NULL, NULL, url, 128 * 1024);
+	if (m->mms == NULL) {
+		g_warning("mmsx_connect() failed");
+		return false;
+	}
+
+	/* XX is this correct?  at least this selects the ffmpeg
+	   decoder, which seems to work fine*/
+	is->mime = g_strdup("audio/x-ms-wma");
+
+	is->data = m;
+	is->ready = true;
+	return true;
+}
+
+static size_t
+input_mms_read(struct input_stream *is, void *ptr, size_t size)
+{
+	struct input_mms *m = is->data;
+	int ret;
+
+	ret = mmsx_read(NULL, m->mms, ptr, size);
+	if (ret <= 0) {
+		if (ret < 0) {
+			is->error = errno;
+			g_warning("mmsx_read() failed: %s", g_strerror(errno));
+		}
+
+		m->eof = true;
+		return false;
+	}
+
+	is->offset += ret;
+
+	return (size_t)ret;
+}
+
+static void
+input_mms_close(struct input_stream *is)
+{
+	struct input_mms *m = is->data;
+
+	mmsx_close(m->mms);
+	g_free(m);
+}
+
+static bool
+input_mms_eof(struct input_stream *is)
+{
+	struct input_mms *m = is->data;
+
+	return m->eof;
+}
+
+static int
+input_mms_buffer(G_GNUC_UNUSED struct input_stream *is)
+{
+	return 0;
+}
+
+static bool
+input_mms_seek(G_GNUC_UNUSED struct input_stream *is,
+	       G_GNUC_UNUSED off_t offset, G_GNUC_UNUSED int whence)
+{
+	return false;
+}
+
+const struct input_plugin input_plugin_mms = {
+	.open = input_mms_open,
+	.close = input_mms_close,
+	.buffer = input_mms_buffer,
+	.read = input_mms_read,
+	.eof = input_mms_eof,
+	.seek = input_mms_seek,
+};