[FFmpeg-devel] [PATCH] avutil/md5: fix unaligned loads

[Ronald S. Bultje]

Hi,

On Tue, Feb 23, 2016 at 8:40 PM, James Almer <jamrial at gmail.com> wrote:

> Tested on x86 and benched with no apparent speed loss


That's because x86 supports unaligned loads.

How come you get unaligned loads? Shouldn't this prevent it?

-    if (HAVE_BIGENDIAN || (!HAVE_FAST_UNALIGNED && ((intptr_t)src & 3))) {
+    if (!HAVE_FAST_UNALIGNED && ((intptr_t)src & 3)) {
        while (src < end) {
            memcpy(ctx->block, src, 64);
            body(ctx->ABCD, (uint32_t *) ctx->block, 1);

Ronald