[FFmpeg-cvslog] rc4: extend av_rc4_init() doxy

[James Almer]

ffmpeg | branch: master | James Almer <jamrial at gmail.com> | Fri Jul 31 09:01:06 2015 +0200| [b469832de993dabbfe037bef59c68e90e82ebca5] | committer: Anton Khirnov

rc4: extend av_rc4_init() doxy

Signed-off-by: Anton Khirnov <anton at khirnov.net>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b469832de993dabbfe037bef59c68e90e82ebca5
---

 libavutil/rc4.h |    1 +
 1 file changed, 1 insertion(+)

diff --git a/libavutil/rc4.h b/libavutil/rc4.h
index f6d2d44..38ae52f 100644
--- a/libavutil/rc4.h
+++ b/libavutil/rc4.h
@@ -49,6 +49,7 @@ AVRC4 *av_rc4_alloc(void);
  *
  * @param key_bits must be a multiple of 8
  * @param decrypt 0 for encryption, 1 for decryption, currently has no effect
+ * @return zero on success, negative value otherwise
  */
 int av_rc4_init(struct AVRC4 *d, const uint8_t *key, int key_bits, int decrypt);