posix_memalign 50 libavutil/mem.c #define posix_memalign AV_JOIN(MALLOC_PREFIX, posix_memalign) posix_memalign 56 libavutil/mem.c int posix_memalign(void **ptr, size_t align, size_t size); posix_memalign 86 libavutil/mem.c if (posix_memalign(&ptr, ALIGN, size))