[FFmpeg-cvslog] avutil/random_seed: Reduce the time needed on systems with very low precission clock()

[Michael Niedermayer]

ffmpeg | branch: release/3.1 | Michael Niedermayer <michael at niedermayer.cc> | Sat Dec 24 14:26:41 2016 +0100| [8c3e90f5edd13e667030101d56e34635b2252706] | committer: Michael Niedermayer

avutil/random_seed: Reduce the time needed on systems with very low precission clock()

This should fix issues on BSD
CLOCKS_PER_SEC is 128 on BSD while SUSv2 requires it to be a million

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit c4152fc42e480c41efb7f761b1bbe5f0bc43d5bc)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8c3e90f5edd13e667030101d56e34635b2252706
---

 libavutil/random_seed.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavutil/random_seed.c b/libavutil/random_seed.c
index bb3f7be..0cabd1c 100644
--- a/libavutil/random_seed.c
+++ b/libavutil/random_seed.c
@@ -87,7 +87,7 @@ static uint32_t get_generic_seed(void)
 
     for (;;) {
         clock_t t = clock();
-        if (last_t + 2*last_td + 1 >= t) {
+        if (last_t + 2*last_td + (CLOCKS_PER_SEC > 1000) >= t) {
             last_td = t - last_t;
             buffer[i & 511] = 1664525*buffer[i & 511] + 1013904223 + (last_td % 3294638521U);
         } else {