Make it easier to add more cases.
This should be a pure refactoring, with no functional changes.
---
libavutil/random_seed.c | 19 +++++++++++--------
1 file changed, 11 insertions(+), 8 deletions(-)
diff --git a/libavutil/random_seed.c b/libavutil/random_seed.c
index 8a4e4f1fc0..ca084b40da 100644
--- a/libavutil/random_seed.c
+++ b/libavutil/random_seed.c
@@ -98,17 +98,20 @@ static uint32_t get_generic_seed(void)
for (;;) {
clock_t t = clock();
- 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);
+ int incremented_i = 0;
+ int cur_td = t - last_t;
+ if (last_t + 2*last_td + (CLOCKS_PER_SEC > 1000) < t) {
+ buffer[++i & 511] += cur_td % 3294638521U;
+ incremented_i = 1;
} else {
- last_td = t - last_t;
- buffer[++i & 511] += last_td % 3294638521U;
- if ((t - init_t) >= CLOCKS_PER_SEC>>5)
- if (last_i && i - last_i > 4 || i - last_i > 64 || TEST && i -
last_i > 8)
- break;
+ buffer[i & 511] = 1664525*buffer[i & 511] + 1013904223 + (cur_td %
3294638521U);
+ }
+ if (incremented_i && (t - init_t) >= CLOCKS_PER_SEC>>5) {
+ if (last_i && i - last_i > 4 || i - last_i > 64 || TEST && i -
last_i > 8)
+ break;
}
last_t = t;
+ last_td = cur_td;
if (!init_t)
init_t = t;
}
--
2.43.0
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