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lavu/mem: Allow allocations close to max_alloc_size with av_fast_realloc().

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This commit is contained in:
Carl Eugen Hoyos 2018-01-02 01:58:35 +01:00
parent f141b353e6
commit 695b1d8111
1 changed files with 6 additions and 1 deletions
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7
libavutil/mem.c
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@ -466,7 +466,12 @@ void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size)
if (min_size <= *size)
return ptr;
min_size = FFMAX(min_size + min_size / 16 + 32, min_size);
if (min_size > max_alloc_size - 32) {
*size = 0;
return NULL;
}
min_size = FFMIN(max_alloc_size - 32, FFMAX(min_size + min_size / 16 + 32, min_size));
ptr = av_realloc(ptr, min_size);
/* we could set this to the unmodified min_size but this is safer