Signed-off-by: James Almer <jamr...@gmail.com>
---
libavcodec/huffyuvencdsp.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/libavcodec/huffyuvencdsp.c b/libavcodec/huffyuvencdsp.c
index 7edcce872b..427d118be4 100644
--- a/libavcodec/huffyuvencdsp.c
+++ b/libavcodec/huffyuvencdsp.c
@@ -21,6 +21,9 @@
#include "huffyuvencdsp.h"
#include "mathops.h"
+// 0x00010001 or 0x0001000100010001 or whatever, depending on the cpu's native
arithmetic size
+#define pw_1 (ULONG_MAX / UINT16_MAX)
+
static void diff_int16_c(uint16_t *dst, const uint16_t *src1, const uint16_t
*src2, unsigned mask, int w){
long i;
#if !HAVE_FAST_UNALIGNED
@@ -34,8 +37,8 @@ static void diff_int16_c(uint16_t *dst, const uint16_t *src1,
const uint16_t *sr
}else
#endif
{
- unsigned long pw_lsb = (mask >> 1) * 0x0001000100010001ULL;
- unsigned long pw_msb = pw_lsb + 0x0001000100010001ULL;
+ unsigned long pw_lsb = (mask >> 1) * pw_1;
+ unsigned long pw_msb = pw_lsb + pw_1;
for (i = 0; i <= w - (int)sizeof(long)/2; i += sizeof(long)/2) {
long a = *(long*)(src1+i);
--
2.11.0
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