diff --git a/libavcodec/mips/h264dsp_mips.h b/libavcodec/mips/h264dsp_mips.h
index 21b7de06f0..7b2a9fabe5 100644
--- a/libavcodec/mips/h264dsp_mips.h
+++ b/libavcodec/mips/h264dsp_mips.h
@@ -357,23 +357,23 @@ void ff_h264_biweight_pixels4_8_mmi(uint8_t *dst, uint8_t *src,
 
 void ff_deblock_v_chroma_8_mmi(uint8_t *pix, ptrdiff_t stride, int alpha, int beta,
         int8_t *tc0);
-void ff_deblock_v_chroma_intra_8_mmi(uint8_t *pix, int stride, int alpha,
+void ff_deblock_v_chroma_intra_8_mmi(uint8_t *pix, ptrdiff_t stride, int alpha,
         int beta);
-void ff_deblock_h_chroma_8_mmi(uint8_t *pix, int stride, int alpha, int beta,
+void ff_deblock_h_chroma_8_mmi(uint8_t *pix, ptrdiff_t stride, int alpha, int beta,
         int8_t *tc0);
-void ff_deblock_h_chroma_intra_8_mmi(uint8_t *pix, int stride, int alpha,
+void ff_deblock_h_chroma_intra_8_mmi(uint8_t *pix, ptrdiff_t stride, int alpha,
         int beta);
-void ff_deblock_v_luma_8_mmi(uint8_t *pix, int stride, int alpha, int beta,
+void ff_deblock_v_luma_8_mmi(uint8_t *pix, ptrdiff_t stride, int alpha, int beta,
         int8_t *tc0);
-void ff_deblock_v_luma_intra_8_mmi(uint8_t *pix, int stride, int alpha,
+void ff_deblock_v_luma_intra_8_mmi(uint8_t *pix, ptrdiff_t stride, int alpha,
         int beta);
-void ff_deblock_h_luma_8_mmi(uint8_t *pix, int stride, int alpha, int beta,
+void ff_deblock_h_luma_8_mmi(uint8_t *pix, ptrdiff_t stride, int alpha, int beta,
         int8_t *tc0);
-void ff_deblock_h_luma_intra_8_mmi(uint8_t *pix, int stride, int alpha,
+void ff_deblock_h_luma_intra_8_mmi(uint8_t *pix, ptrdiff_t stride, int alpha,
         int beta);
-void ff_deblock_v8_luma_8_mmi(uint8_t *pix, int stride, int alpha, int beta,
+void ff_deblock_v8_luma_8_mmi(uint8_t *pix, ptrdiff_t stride, int alpha, int beta,
         int8_t *tc0);
-void ff_deblock_v8_luma_intra_8_mmi(uint8_t *pix, int stride, int alpha,
+void ff_deblock_v8_luma_intra_8_mmi(uint8_t *pix, ptrdiff_t stride, int alpha,
         int beta);
 
 void ff_put_h264_qpel16_mc00_mmi(uint8_t *dst, const uint8_t *src,
diff --git a/libavcodec/mips/h264dsp_mmi.c b/libavcodec/mips/h264dsp_mmi.c
index 0459711b82..7a60ee7c2b 100644
--- a/libavcodec/mips/h264dsp_mmi.c
+++ b/libavcodec/mips/h264dsp_mmi.c
@@ -1433,7 +1433,7 @@ void ff_h264_biweight_pixels4_8_mmi(uint8_t *dst, uint8_t *src,
     }
 }
 
-void ff_deblock_v8_luma_8_mmi(uint8_t *pix, int stride, int alpha, int beta,
+void ff_deblock_v8_luma_8_mmi(uint8_t *pix, pixdiff_t stride, int alpha, int beta,
         int8_t *tc0)
 {
     double ftmp[12];
@@ -1561,7 +1561,7 @@ void ff_deblock_v8_luma_8_mmi(uint8_t *pix, int stride, int alpha, int beta,
     );
 }
 
-static void deblock_v8_luma_intra_8_mmi(uint8_t *pix, int stride, int alpha,
+static void deblock_v8_luma_intra_8_mmi(uint8_t *pix, ptrdiff_t stride, int alpha,
         int beta)
 {
     DECLARE_ALIGNED(8, const uint64_t, stack[0x0a]);
@@ -1871,7 +1871,7 @@ void ff_deblock_v_chroma_8_mmi(uint8_t *pix, ptrdiff_t stride, int alpha,
     );
 }
 
-void ff_deblock_v_chroma_intra_8_mmi(uint8_t *pix, int stride, int alpha,
+void ff_deblock_v_chroma_intra_8_mmi(uint8_t *pix, ptrdiff_t stride, int alpha,
         int beta)
 {
     double ftmp[9];
@@ -1949,7 +1949,7 @@ void ff_deblock_v_chroma_intra_8_mmi(uint8_t *pix, int stride, int alpha,
     );
 }
 
-void ff_deblock_h_chroma_8_mmi(uint8_t *pix, int stride, int alpha, int beta,
+void ff_deblock_h_chroma_8_mmi(uint8_t *pix, ptrdiff_t stride, int alpha, int beta,
         int8_t *tc0)
 {
     double ftmp[11];
@@ -2089,7 +2089,7 @@ void ff_deblock_h_chroma_8_mmi(uint8_t *pix, int stride, int alpha, int beta,
     );
 }
 
-void ff_deblock_h_chroma_intra_8_mmi(uint8_t *pix, int stride, int alpha,
+void ff_deblock_h_chroma_intra_8_mmi(uint8_t *pix, ptrdiff_t stride, int alpha,
         int beta)
 {
     double ftmp[11];
@@ -2222,7 +2222,7 @@ void ff_deblock_h_chroma_intra_8_mmi(uint8_t *pix, int stride, int alpha,
     );
 }
 
-void ff_deblock_v_luma_8_mmi(uint8_t *pix, int stride, int alpha, int beta,
+void ff_deblock_v_luma_8_mmi(uint8_t *pix, ptrdiff_t stride, int alpha, int beta,
         int8_t *tc0)
 {
     if ((tc0[0] & tc0[1]) >= 0)
@@ -2231,14 +2231,14 @@ void ff_deblock_v_luma_8_mmi(uint8_t *pix, int stride, int alpha, int beta,
         ff_deblock_v8_luma_8_mmi(pix + 8, stride, alpha, beta, tc0 + 2);
 }
 
-void ff_deblock_v_luma_intra_8_mmi(uint8_t *pix, int stride, int alpha,
+void ff_deblock_v_luma_intra_8_mmi(uint8_t *pix, ptrdiff_t stride, int alpha,
         int beta)
 {
     deblock_v8_luma_intra_8_mmi(pix + 0, stride, alpha, beta);
     deblock_v8_luma_intra_8_mmi(pix + 8, stride, alpha, beta);
 }
 
-void ff_deblock_h_luma_8_mmi(uint8_t *pix, int stride, int alpha, int beta,
+void ff_deblock_h_luma_8_mmi(uint8_t *pix, ptrdiff_t stride, int alpha, int beta,
         int8_t *tc0)
 {
     DECLARE_ALIGNED(8, const uint64_t, stack[0x0d]);
@@ -2457,7 +2457,7 @@ void ff_deblock_h_luma_8_mmi(uint8_t *pix, int stride, int alpha, int beta,
     );
 }
 
-void ff_deblock_h_luma_intra_8_mmi(uint8_t *pix, int stride, int alpha,
+void ff_deblock_h_luma_intra_8_mmi(uint8_t *pix, ptrdiff_t stride, int alpha,
         int beta)
 {
     DECLARE_ALIGNED(8, const uint64_t, ptmp[0x11]);
diff --git a/libavcodec/mips/xvid_idct_mmi.c b/libavcodec/mips/xvid_idct_mmi.c
index d3f9acb0e2..b822b8add8 100644
--- a/libavcodec/mips/xvid_idct_mmi.c
+++ b/libavcodec/mips/xvid_idct_mmi.c
@@ -240,13 +240,13 @@ void ff_xvid_idct_mmi(int16_t *block)
     );
 }
 
-void ff_xvid_idct_put_mmi(uint8_t *dest, int32_t line_size, int16_t *block)
+void ff_xvid_idct_put_mmi(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
 {
     ff_xvid_idct_mmi(block);
     ff_put_pixels_clamped_mmi(block, dest, line_size);
 }
 
-void ff_xvid_idct_add_mmi(uint8_t *dest, int32_t line_size, int16_t *block)
+void ff_xvid_idct_add_mmi(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
 {
     ff_xvid_idct_mmi(block);
     ff_add_pixels_clamped_mmi(block, dest, line_size);
diff --git a/libavcodec/mips/xvididct_mips.h b/libavcodec/mips/xvididct_mips.h
index 0768aaa26f..bee03c1391 100644
--- a/libavcodec/mips/xvididct_mips.h
+++ b/libavcodec/mips/xvididct_mips.h
@@ -24,7 +24,7 @@
 #include "libavcodec/xvididct.h"
 
 void ff_xvid_idct_mmi(int16_t *block);
-void ff_xvid_idct_put_mmi(uint8_t *dest, int32_t line_size, int16_t *block);
-void ff_xvid_idct_add_mmi(uint8_t *dest, int32_t line_size, int16_t *block);
+void ff_xvid_idct_put_mmi(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
+void ff_xvid_idct_add_mmi(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
 
 #endif /* AVCODEC_MIPS_XVIDIDCT_MIPS_H */
