avutil: Move memcpy_backptr() to mem.c

[ffmpeg] / libavutil / random_seed.h

diff --git a/libavutil/random_seed.h b/libavutil/random_seed.h
index bda7817ed0b3fda307cc1665a1cf170c6e777b81..b1fad13d0757a04b151640146e2f4e5d2327b55b 100644 (file)
--- a/libavutil/random_seed.h
+++ b/libavutil/random_seed.h
@@ -1,20 +1,20 @@
 /*
  * Copyright (c) 2009 Baptiste Coudurier <baptiste.coudurier@gmail.com>
  *
- * 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
  */
 
@@ -22,10 +22,23 @@
 #define AVUTIL_RANDOM_SEED_H
 
 #include <stdint.h>
+/**
+ * @addtogroup lavu_crypto
+ * @{
+ */
+
+/**
+ * Get random data.
+ *
+ * This function can be called repeatedly to generate more random bits
+ * as needed. It is generally quite slow, and usually used to seed a
+ * PRNG.  As it uses /dev/urandom and /dev/random, the quality of the
+ * returned random data depends on the platform.
+ */
+uint32_t av_get_random_seed(void);
 
 /**
- * Gets a seed to use in conjuction with random functions.
+ * @}
  */
-uint32_t ff_random_get_seed();
 
 #endif /* AVUTIL_RANDOM_SEED_H */