}
#define H264_WEIGHT(W) \
-static void weight_h264_pixels ## W ## _altivec(uint8_t *block, int stride, int height, \
+static void weight_h264_pixels ## W ## _altivec(uint8_t *block, ptrdiff_t stride, int height, \
int log2_denom, int weight, int offset) \
{ \
weight_h264_W_altivec(block, stride, height, log2_denom, weight, offset, W); \
}\
-static void biweight_h264_pixels ## W ## _altivec(uint8_t *dst, uint8_t *src, int stride, int height, \
+static void biweight_h264_pixels ## W ## _altivec(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int height, \
int log2_denom, int weightd, int weights, int offset) \
{ \
biweight_h264_W_altivec(dst, src, stride, height, log2_denom, weightd, weights, offset, W); \