openharmony/third_party_ffmpeg
1
0
Fork 0
mirror of https://gitee.com/openharmony/third_party_ffmpeg synced 2024-11-23 11:19:55 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

avutil/random_seed: Add the runtime in cycles of the main loop to the entropy pool

Browse Source 
This should theoretically improve the randomness slightly

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2015-12-09 15:18:53 +01:00
parent 73d1398f0c
commit 2540d884f3
1 changed files with 6 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
libavutil/random_seed.c
View File

@ -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));