start abstracting input layer for decoders

git-svn-id: https://svn.musicpd.org/mpd/trunk@903 09075e82-0dd4-0310-85a5-a0d7c8717e4f

1 files changed, 41 insertions, 0 deletions

diff --git a/src/inputStream.h b/src/inputStream.h
new file mode 100644
index 000000000..2f11da044
--- /dev/null
+++ b/src/inputStream.h
@@ -0,0 +1,41 @@
+/* the Music Player Daemon (MPD)
+ * (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu)
+ * This project's homepage is: 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
+ */
+
+#ifndef INPUT_STREAM_H
+#define INPUT_STREAM_H
+
+#include <stdio.h>
+#include <stdlib.h>
+
+typedef struct _InputStream {
+	FILE * fp;
+	int error;
+	long offset;
+	size_t size;
+} InputStream;
+
+/* if an error occurs for these 3 functions, then -1 is returned and errno
+   for the input stream is set */
+int initInputStreamFromFile(InputStream * inStream, char * filename);
+int seekInputStream(InputStream * inStream, long offset);
+int finishInputStream(InputStream * inStream);
+
+size_t fillBufferFromInputStream(InputStream * inStream, char * buffer, 
+		size_t buflen);
+
+#endif