avcodec/huffyuvdsp: Change w to intptr in add_hfyu_median_pred() and add_hfyu_left_pred()

This avoids potential issues with the high 32bits being random in x86-64 asm
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/huffyuvdsp.c

@@ -41,7 +41,7 @@ static void add_bytes_c(uint8_t *dst, uint8_t *src, intptr_t w)
 }
 
 static void add_hfyu_median_pred_c(uint8_t *dst, const uint8_t *src1,
-                                   const uint8_t *diff, int w,
+                                   const uint8_t *diff, intptr_t w,
                                    int *left, int *left_top)
 {
     int i;
@@ -60,7 +60,7 @@ static void add_hfyu_median_pred_c(uint8_t *dst, const uint8_t *src1,
     *left_top = lt;
 }
 
-static int add_hfyu_left_pred_c(uint8_t *dst, const uint8_t *src, int w,
+static int add_hfyu_left_pred_c(uint8_t *dst, const uint8_t *src, intptr_t w,
                                 int acc)
 {
     int i;

libavcodec/huffyuvdsp.h

@@ -37,10 +37,10 @@ typedef struct HuffYUVDSPContext {
     void (*add_bytes)(uint8_t *dst /* align 16 */, uint8_t *src /* align 16 */,
                       intptr_t w);
     void (*add_hfyu_median_pred)(uint8_t *dst, const uint8_t *top,
-                                 const uint8_t *diff, int w,
+                                 const uint8_t *diff, intptr_t w,
                                  int *left, int *left_top);
     int (*add_hfyu_left_pred)(uint8_t *dst, const uint8_t *src,
-                              int w, int left);
+                              intptr_t w, int left);
     void (*add_hfyu_left_pred_bgr32)(uint8_t *dst, const uint8_t *src,
                                      intptr_t w, uint8_t *left);
 } HuffYUVDSPContext;

libavcodec/x86/huffyuvdsp_init.c

@@ -27,19 +27,19 @@ void ff_add_bytes_mmx(uint8_t *dst, uint8_t *src, intptr_t w);
 void ff_add_bytes_sse2(uint8_t *dst, uint8_t *src, intptr_t w);
 
 void ff_add_hfyu_median_pred_cmov(uint8_t *dst, const uint8_t *top,
-                                  const uint8_t *diff, int w,
+                                  const uint8_t *diff, intptr_t w,
                                   int *left, int *left_top);
 void ff_add_hfyu_median_pred_mmxext(uint8_t *dst, const uint8_t *top,
-                                    const uint8_t *diff, int w,
+                                    const uint8_t *diff, intptr_t w,
                                     int *left, int *left_top);
 void ff_add_hfyu_median_pred_sse2(uint8_t *dst, const uint8_t *top,
-                                  const uint8_t *diff, int w,
+                                  const uint8_t *diff, intptr_t w,
                                   int *left, int *left_top);
 
 int  ff_add_hfyu_left_pred_ssse3(uint8_t *dst, const uint8_t *src,
-                                 int w, int left);
+                                 intptr_t w, int left);
 int  ff_add_hfyu_left_pred_sse4(uint8_t *dst, const uint8_t *src,
-                                int w, int left);
+                                intptr_t w, int left);
 
 av_cold void ff_huffyuvdsp_init_x86(HuffYUVDSPContext *c)
 {