1 files changed, 86 insertions, 0 deletions
diff --git a/src/decoder/plugins/DsdLib.hxx b/src/decoder/plugins/DsdLib.hxx
new file mode 100644
index 000000000..8295bcbf6
--- /dev/null
+++ b/src/decoder/plugins/DsdLib.hxx
@@ -0,0 +1,86 @@
+/*
+ * 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.
+ */
+
+#ifndef MPD_DECODER_DSDLIB_HXX
+#define MPD_DECODER_DSDLIB_HXX
+
+#include "system/ByteOrder.hxx"
+#include "input/Offset.hxx"
+#include "Compiler.h"
+
+#include <stddef.h>
+#include <stdint.h>
+
+struct Decoder;
+class InputStream;
+
+struct DsdId {
+	char value[4];
+
+	gcc_pure
+	bool Equals(const char *s) const;
+};
+
+class DsdUint64 {
+	uint32_t lo;
+	uint32_t hi;
+
+public:
+	constexpr uint64_t Read() const {
+		return (uint64_t(FromLE32(hi)) << 32) |
+			uint64_t(FromLE32(lo));
+	}
+};
+
+class DffDsdUint64 {
+	uint32_t hi;
+	uint32_t lo;
+
+public:
+	constexpr uint64_t Read() const {
+		return (uint64_t(FromBE32(hi)) << 32) |
+			uint64_t(FromBE32(lo));
+	}
+};
+
+bool
+dsdlib_skip_to(Decoder *decoder, InputStream &is,
+	       offset_type offset);
+
+bool
+dsdlib_skip(Decoder *decoder, InputStream &is,
+	    offset_type delta);
+
+/**
+ * Check if the sample frequency is a valid DSD frequency.
+ **/
+gcc_const
+bool
+dsdlib_valid_freq(uint32_t samplefreq);
+
+/**
+ * Add tags from ID3 tag. All tags commonly found in the ID3 tags of
+ * DSF and DSDIFF files are imported
+ */
+void
+dsdlib_tag_id3(InputStream &is,
+	       const struct tag_handler *handler,
+	       void *handler_ctx, int64_t tagoffset);
+
+#endif