Add the const specifier as needed to reduce the number of warnings.

Originally committed as revision 7764 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/dsputil.h

@@ -388,7 +388,7 @@ typedef struct DSPContext {
     /* snow wavelet */
     void (*vertical_compose97i)(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTELEM *b3, DWTELEM *b4, DWTELEM *b5, int width);
     void (*horizontal_compose97i)(DWTELEM *b, int width);
-    void (*inner_add_yblock)(uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8);
+    void (*inner_add_yblock)(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8);
 
     void (*prefetch)(void *mem, int stride, int h);
 

libavcodec/i386/dsputil_mmx.c

@@ -3042,9 +3042,9 @@ extern void ff_snow_horizontal_compose97i_sse2(DWTELEM *b, int width);
 extern void ff_snow_horizontal_compose97i_mmx(DWTELEM *b, int width);
 extern void ff_snow_vertical_compose97i_sse2(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTELEM *b3, DWTELEM *b4, DWTELEM *b5, int width);
 extern void ff_snow_vertical_compose97i_mmx(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTELEM *b3, DWTELEM *b4, DWTELEM *b5, int width);
-extern void ff_snow_inner_add_yblock_sse2(uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
+extern void ff_snow_inner_add_yblock_sse2(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
                            int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8);
-extern void ff_snow_inner_add_yblock_mmx(uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
+extern void ff_snow_inner_add_yblock_mmx(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
                           int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8);
 #endif
 

libavcodec/i386/snowdsp_mmx.c

@@ -708,7 +708,7 @@ void ff_snow_vertical_compose97i_mmx(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTE
              "dec %2                         \n\t"\
              snow_inner_add_yblock_sse2_end_common2
 
-static void inner_add_yblock_bw_8_obmc_16_bh_even_sse2(uint8_t *obmc, const long obmc_stride, uint8_t * * block, int b_w, long b_h,
+static void inner_add_yblock_bw_8_obmc_16_bh_even_sse2(const uint8_t *obmc, const long obmc_stride, uint8_t * * block, int b_w, long b_h,
                       int src_x, int src_y, long src_stride, slice_buffer * sb, int add, uint8_t * dst8){
 snow_inner_add_yblock_sse2_header
 snow_inner_add_yblock_sse2_start_8("xmm1", "xmm5", "3", "0")
@@ -756,7 +756,7 @@ snow_inner_add_yblock_sse2_accum_8("0", "136")
 snow_inner_add_yblock_sse2_end_8
 }
 
-static void inner_add_yblock_bw_16_obmc_32_sse2(uint8_t *obmc, const long obmc_stride, uint8_t * * block, int b_w, long b_h,
+static void inner_add_yblock_bw_16_obmc_32_sse2(const uint8_t *obmc, const long obmc_stride, uint8_t * * block, int b_w, long b_h,
                       int src_x, int src_y, long src_stride, slice_buffer * sb, int add, uint8_t * dst8){
 snow_inner_add_yblock_sse2_header
 snow_inner_add_yblock_sse2_start_16("xmm1", "xmm5", "3", "0")
@@ -868,7 +868,7 @@ snow_inner_add_yblock_sse2_end_16
              "rm"((long)(src_x<<2)),"m"(obmc),"a"(block),"m"((long)b_h),"m"((long)src_stride):\
              "%"REG_c"","%"REG_S"","%"REG_D"","%"REG_d"");
 
-static void inner_add_yblock_bw_8_obmc_16_mmx(uint8_t *obmc, const long obmc_stride, uint8_t * * block, int b_w, long b_h,
+static void inner_add_yblock_bw_8_obmc_16_mmx(const uint8_t *obmc, const long obmc_stride, uint8_t * * block, int b_w, long b_h,
                       int src_x, int src_y, long src_stride, slice_buffer * sb, int add, uint8_t * dst8){
 snow_inner_add_yblock_mmx_header
 snow_inner_add_yblock_mmx_start("mm1", "mm5", "3", "0", "0")
@@ -879,7 +879,7 @@ snow_inner_add_yblock_mmx_mix("0", "0")
 snow_inner_add_yblock_mmx_end("16")
 }
 
-static void inner_add_yblock_bw_16_obmc_32_mmx(uint8_t *obmc, const long obmc_stride, uint8_t * * block, int b_w, long b_h,
+static void inner_add_yblock_bw_16_obmc_32_mmx(const uint8_t *obmc, const long obmc_stride, uint8_t * * block, int b_w, long b_h,
                       int src_x, int src_y, long src_stride, slice_buffer * sb, int add, uint8_t * dst8){
 snow_inner_add_yblock_mmx_header
 snow_inner_add_yblock_mmx_start("mm1", "mm5", "3", "0", "0")
@@ -896,7 +896,7 @@ snow_inner_add_yblock_mmx_mix("32", "8")
 snow_inner_add_yblock_mmx_end("32")
 }
 
-void ff_snow_inner_add_yblock_sse2(uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
+void ff_snow_inner_add_yblock_sse2(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
                            int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){
 
     if (b_w == 16)
@@ -910,7 +910,7 @@ void ff_snow_inner_add_yblock_sse2(uint8_t *obmc, const int obmc_stride, uint8_t
          ff_snow_inner_add_yblock(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
 }
 
-void ff_snow_inner_add_yblock_mmx(uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
+void ff_snow_inner_add_yblock_mmx(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
                           int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){
     if (b_w == 16)
         inner_add_yblock_bw_16_obmc_32_mmx(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);

libavcodec/snow.c

@@ -2521,16 +2521,16 @@ static void pred_block(SnowContext *s, uint8_t *dst, uint8_t *tmp, int stride, i
     }
 }
 
-void ff_snow_inner_add_yblock(uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
+void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
                               int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){
     int y, x;
     DWTELEM * dst;
     for(y=0; y<b_h; y++){
         //FIXME ugly missue of obmc_stride
-        uint8_t *obmc1= obmc + y*obmc_stride;
-        uint8_t *obmc2= obmc1+ (obmc_stride>>1);
-        uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1);
-        uint8_t *obmc4= obmc3+ (obmc_stride>>1);
+        const uint8_t *obmc1= obmc + y*obmc_stride;
+        const uint8_t *obmc2= obmc1+ (obmc_stride>>1);
+        const uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1);
+        const uint8_t *obmc4= obmc3+ (obmc_stride>>1);
         dst = slice_buffer_get_line(sb, src_y + y);
         for(x=0; x<b_w; x++){
             int v=   obmc1[x] * block[3][x + y*src_stride]
@@ -2687,10 +2687,10 @@ assert(src_stride > 2*MB_SIZE + 5);
     }else
     for(y=0; y<b_h; y++){
         //FIXME ugly missue of obmc_stride
-        uint8_t *obmc1= obmc + y*obmc_stride;
-        uint8_t *obmc2= obmc1+ (obmc_stride>>1);
-        uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1);
-        uint8_t *obmc4= obmc3+ (obmc_stride>>1);
+        const uint8_t *obmc1= obmc + y*obmc_stride;
+        const uint8_t *obmc2= obmc1+ (obmc_stride>>1);
+        const uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1);
+        const uint8_t *obmc4= obmc3+ (obmc_stride>>1);
         for(x=0; x<b_w; x++){
             int v=   obmc1[x] * block[3][x + y*src_stride]
                     +obmc2[x] * block[2][x + y*src_stride]

libavcodec/snow.h

@@ -125,7 +125,7 @@ struct slice_buffer_s {
 
 extern void ff_snow_vertical_compose97i(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTELEM *b3, DWTELEM *b4, DWTELEM *b5, int width);
 extern void ff_snow_horizontal_compose97i(DWTELEM *b, int width);
-extern void ff_snow_inner_add_yblock(uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8);
+extern void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8);
 
 #ifdef CONFIG_SNOW_ENCODER
 int w53_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h);