1 files changed, 46 insertions, 0 deletions
diff --git a/src/libmusepack/musepack/reader.h b/src/libmusepack/musepack/reader.h
new file mode 100644
index 000000000..00aae830d
--- /dev/null
+++ b/src/libmusepack/musepack/reader.h
@@ -0,0 +1,46 @@
+/// \file reader.h
+
+#ifndef _musepack_reader_h_
+#define _musepack_reader_h_
+
+/// \brief Stream reader interface structure.
+///
+/// This is the structure you must supply to the musepack decoding library
+/// to feed it with raw data.  Implement the five member functions to provide
+/// a functional reader.
+typedef struct mpc_reader_t {
+    /// Reads size bytes of data into buffer at ptr.
+	mpc_int32_t (*read)(void *t, void *ptr, mpc_int32_t size);
+
+    /// Seeks to byte position offset.
+	BOOL (*seek)(void *t, mpc_int32_t offset);
+
+    /// Returns the current byte offset in the stream.
+	mpc_int32_t (*tell)(void *t);
+
+    /// Returns the total length of the source stream, in bytes.
+	mpc_int32_t (*get_size)(void *t);
+
+    /// True if the stream is a seekable stream.
+	BOOL (*canseek)(void *t);
+
+    /// Optional field that can be used to identify a particular instance of
+    /// reader or carry along data associated with that reader.
+    void *data;
+
+    // These are used by provided internal standard file-based reader implementation.
+    // You shouldn't touch them.  They're included in the main struct to avoid
+    // malloc/free.
+    FILE *file;
+    long file_size;
+    BOOL is_seekable;
+} mpc_reader;
+
+/// Initializes reader with default stdio file reader implementation.  Use
+/// this if you're just reading from a plain file.
+///
+/// \param r reader struct to initalize
+/// \param input input stream to attach to the reader
+void mpc_reader_setup_file_reader(mpc_reader *r, FILE *input);
+
+#endif // _musepack_reader_h_