h264: eliminate copy_fields

[ffmpeg] / libavutil / adler32.h

diff --git a/libavutil/adler32.h b/libavutil/adler32.h
index 91dff9a4ec62397cd6927d32c57efa29362d9a7f..53e3dbf51d6bcb66bd79ea058976c9483b91a6b8 100644 (file)
--- a/libavutil/adler32.h
+++ b/libavutil/adler32.h
@@ -1,29 +1,55 @@
 /*
  * copyright (c) 2006 Mans Rullgard
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav 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
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#ifndef FFMPEG_ADLER32_H
-#define FFMPEG_ADLER32_H
+#ifndef AVUTIL_ADLER32_H
+#define AVUTIL_ADLER32_H
 
 #include <stdint.h>
+#include "attributes.h"
 
+/**
+ * @file
+ * Public header for libavutil Adler32 hasher
+ *
+ * @defgroup lavu_adler32 Adler32
+ * @ingroup lavu_crypto
+ * @{
+ */
+
+/**
+ * Calculate the Adler32 checksum of a buffer.
+ *
+ * Passing the return value to a subsequent av_adler32_update() call
+ * allows the checksum of multiple buffers to be calculated as though
+ * they were concatenated.
+ *
+ * @param adler initial checksum value
+ * @param buf   pointer to input buffer
+ * @param len   size of input buffer
+ * @return      updated checksum
+ */
 unsigned long av_adler32_update(unsigned long adler, const uint8_t *buf,
                                 unsigned int len) av_pure;
 
-#endif /* FFMPEG_ADLER32_H */
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_ADLER32_H */