[FFmpeg-cvslog] avutil: elaborate documentation for av_get_random_seed

[Reinhard Tartler]

ffmpeg | branch: master | Reinhard Tartler <siretart at tauware.de> | Thu Jun 30 20:44:46 2011 +0200| [192bfbc1f18d50afea03c2d62ce5325fabb2f141] | committer: Reinhard Tartler

avutil: elaborate documentation for av_get_random_seed

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=192bfbc1f18d50afea03c2d62ce5325fabb2f141
---

 libavutil/random_seed.h |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/libavutil/random_seed.h b/libavutil/random_seed.h
index 8157d42..5bfeb8b 100644
--- a/libavutil/random_seed.h
+++ b/libavutil/random_seed.h
@@ -24,7 +24,12 @@
 #include <stdint.h>
 
 /**
- * Get a seed to use in conjunction with random functions.
+ * 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);