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| author | Michael Niedermayer <michael@niedermayer.cc> | 2015-12-09 15:18:53 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2016-03-26 21:52:47 +0100 |
| commit | c8977ec6e9b07ffaddcff9b1b93fe2178b3a6078 (patch) | |
| tree | b8fdbfd92b54e0f5539e55336b7b24b7423e0b30 | |
| parent | 934bc32accaefd764a2a815c19462c6fbe5d1f79 (diff) | |
| download | ffmpeg-c8977ec6e9b07ffaddcff9b1b93fe2178b3a6078.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 205a636f92..0821550bc8 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)); |