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| author | Michael Niedermayer <michael@niedermayer.cc> | 2015-12-09 15:18:53 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2016-04-28 03:47:13 +0200 |
| commit | 91b6d89d0a5ed5ac1aa3ca60d6f8dca93b50d461 (patch) | |
| tree | a37fdd94c538945fb5649c52e49c94278047fd28 | |
| parent | 2a73404558d4f8ac116e7dfe149403e82bc4f6d5 (diff) | |
| download | ffmpeg-91b6d89d0a5ed5ac1aa3ca60d6f8dca93b50d461.tar.gz | |
avutil/random_seed: Add the runtime in cycles of the main loop to the entropy pool
This should theoretically improve the randomness slightly
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 2540d884f3fd7cfac503e048112098967be2569a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavutil/random_seed.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/libavutil/random_seed.c b/libavutil/random_seed.c index 8aa8c3879b..5af8e9e524 100644 --- a/libavutil/random_seed.c +++ b/libavutil/random_seed.c @@ -97,8 +97,13 @@ static uint32_t get_generic_seed(void) last_t = t; } - if(TEST) + if(TEST) { buffer[0] = buffer[1] = 0; + } else { +#ifdef AV_READ_TIME + buffer[111] += AV_READ_TIME(); +#endif + } av_sha_init(sha, 160); av_sha_update(sha, (const uint8_t *)buffer, sizeof(buffer)); |