1 files changed, 73 insertions, 0 deletions
diff --git a/trunk/src/inputPlugins/_ogg_common.c b/trunk/src/inputPlugins/_ogg_common.c
new file mode 100644
index 000000000..c83e46103
--- /dev/null
+++ b/trunk/src/inputPlugins/_ogg_common.c
@@ -0,0 +1,73 @@
+/* the Music Player Daemon (MPD)
+ * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
+ * This project's homepage is: http://www.musicpd.org
+ *
+ * Common functions used for Ogg data streams (Ogg-Vorbis and OggFLAC)
+ * (c) 2005 by Eric Wong <normalperson@yhbt.net>
+ *
+ * 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 "../inputPlugin.h"
+
+#if defined(HAVE_OGGFLAC) || defined(HAVE_OGGVORBIS)
+
+#include "../utils.h"
+#include "_ogg_common.h"
+
+#include <string.h>
+
+ogg_stream_type ogg_stream_type_detect(InputStream * inStream)
+{
+	/* oggflac detection based on code in ogg123 and this post
+	 * http://lists.xiph.org/pipermail/flac/2004-December/000393.html
+	 * ogg123 trunk still doesn't have this patch as of June 2005 */
+	unsigned char buf[41];
+	size_t r, to_read = 41;
+
+	seekInputStream(inStream, 0, SEEK_SET);
+
+	while (to_read) {
+		r = readFromInputStream(inStream, buf, 1, to_read);
+		if (inStream->error)
+			break;
+		to_read -= r;
+		if (!r && !inputStreamAtEOF(inStream))
+			my_usleep(10000);
+		else
+			break;
+	}
+
+	seekInputStream(inStream, 0, SEEK_SET);
+
+	if (r >= 32 && memcmp(buf, "OggS", 4) == 0 && ((memcmp
+							(buf + 29, "FLAC",
+							 4) == 0
+							&& memcmp(buf + 37,
+								  "fLaC",
+								  4) == 0)
+						       ||
+						       (memcmp
+							(buf + 28, "FLAC",
+							 4) == 0)
+						       ||
+						       (memcmp
+							(buf + 28, "fLaC",
+							 4) == 0))) {
+		return FLAC;
+	}
+	return VORBIS;
+}
+
+#endif /* defined(HAVE_OGGFLAC || defined(HAVE_OGGVORBIS) */