bfin: libswscale: add const where appropriate to fix warnings

Signed-off-by: Mans Rullgard <mans@mansr.com>

libswscale/bfin/swscale_bfin.c

@@ -39,14 +39,14 @@ int ff_bfin_yuyvtoyv12(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
                        uint8_t *vdst, int width, int height,
                        int lumStride, int chromStride, int srcStride) L1CODE;
 
-static int uyvytoyv12_unscaled(SwsContext *c, uint8_t *src[], int srcStride[],
-                               int srcSliceY, int srcSliceH, uint8_t *dst[],
-                               int dstStride[])
+static int uyvytoyv12_unscaled(SwsContext *c, const uint8_t *src[],
+                               int srcStride[], int srcSliceY, int srcSliceH,
+                               uint8_t *dst[], int dstStride[])
 {
     uint8_t *dsty = dst[0] + dstStride[0] * srcSliceY;
     uint8_t *dstu = dst[1] + dstStride[1] * srcSliceY / 2;
     uint8_t *dstv = dst[2] + dstStride[2] * srcSliceY / 2;
-    uint8_t *ip   = src[0] + srcStride[0] * srcSliceY;
+    const uint8_t *ip = src[0] + srcStride[0] * srcSliceY;
     int w = dstStride[0];
 
     ff_bfin_uyvytoyv12(ip, dsty, dstu, dstv, w, srcSliceH,
@@ -55,14 +55,14 @@ static int uyvytoyv12_unscaled(SwsContext *c, uint8_t *src[], int srcStride[],
     return srcSliceH;
 }
 
-static int yuyvtoyv12_unscaled(SwsContext *c, uint8_t *src[], int srcStride[],
-                               int srcSliceY, int srcSliceH, uint8_t *dst[],
-                               int dstStride[])
+static int yuyvtoyv12_unscaled(SwsContext *c, const uint8_t *src[],
+                               int srcStride[], int srcSliceY, int srcSliceH,
+                               uint8_t *dst[], int dstStride[])
 {
     uint8_t *dsty = dst[0] + dstStride[0] * srcSliceY;
     uint8_t *dstu = dst[1] + dstStride[1] * srcSliceY / 2;
     uint8_t *dstv = dst[2] + dstStride[2] * srcSliceY / 2;
-    uint8_t *ip   = src[0] + srcStride[0] * srcSliceY;
+    const uint8_t *ip = src[0] + srcStride[0] * srcSliceY;
     int w = dstStride[0];
 
     ff_bfin_yuyvtoyv12(ip, dsty, dstu, dstv, w, srcSliceH,

libswscale/bfin/yuv2rgb_bfin.c

@@ -32,17 +32,20 @@
 #define L1CODE
 #endif
 
-void ff_bfin_yuv2rgb555_line(uint8_t *Y, uint8_t *U, uint8_t *V, uint8_t *out,
+void ff_bfin_yuv2rgb555_line(const uint8_t *Y, const uint8_t *U,
+                             const uint8_t *V, uint8_t *out,
                              int w, uint32_t *coeffs) L1CODE;
 
-void ff_bfin_yuv2rgb565_line(uint8_t *Y, uint8_t *U, uint8_t *V, uint8_t *out,
+void ff_bfin_yuv2rgb565_line(const uint8_t *Y, const uint8_t *U,
+                             const uint8_t *V, uint8_t *out,
                              int w, uint32_t *coeffs) L1CODE;
 
-void ff_bfin_yuv2rgb24_line(uint8_t *Y, uint8_t *U, uint8_t *V, uint8_t *out,
+void ff_bfin_yuv2rgb24_line(const uint8_t *Y, const uint8_t *U,
+                            const uint8_t *V, uint8_t *out,
                             int w, uint32_t *coeffs) L1CODE;
 
-typedef void (*ltransform)(uint8_t *Y, uint8_t *U, uint8_t *V, uint8_t *out,
-                           int w, uint32_t *coeffs);
+typedef void (*ltransform)(const uint8_t *Y, const uint8_t *U, const uint8_t *V,
+                           uint8_t *out, int w, uint32_t *coeffs);
 
 static void bfin_prepare_coefficients(SwsContext *c, int rgb, int masks)
 {
@@ -80,12 +83,13 @@ static void bfin_prepare_coefficients(SwsContext *c, int rgb, int masks)
     }
 }
 
-static int core_yuv420_rgb(SwsContext *c, uint8_t **in, int *instrides,
+static int core_yuv420_rgb(SwsContext *c, const uint8_t **in, int *instrides,
                            int srcSliceY, int srcSliceH, uint8_t **oplanes,
                            int *outstrides, ltransform lcscf,
                            int rgb, int masks)
 {
-    uint8_t *py, *pu, *pv, *op;
+    const uint8_t *py, *pu, *pv;
+    uint8_t *op;
     int w  = instrides[0];
     int h2 = srcSliceH >> 1;
     int i;
@@ -115,7 +119,7 @@ static int core_yuv420_rgb(SwsContext *c, uint8_t **in, int *instrides,
     return srcSliceH;
 }
 
-static int bfin_yuv420_rgb555(SwsContext *c, uint8_t **in, int *instrides,
+static int bfin_yuv420_rgb555(SwsContext *c, const uint8_t **in, int *instrides,
                               int srcSliceY, int srcSliceH,
                               uint8_t **oplanes, int *outstrides)
 {
@@ -123,7 +127,7 @@ static int bfin_yuv420_rgb555(SwsContext *c, uint8_t **in, int *instrides,
                            outstrides, ff_bfin_yuv2rgb555_line, 1, 555);
 }
 
-static int bfin_yuv420_bgr555(SwsContext *c, uint8_t **in, int *instrides,
+static int bfin_yuv420_bgr555(SwsContext *c, const uint8_t **in, int *instrides,
                               int srcSliceY, int srcSliceH,
                               uint8_t **oplanes, int *outstrides)
 {
@@ -131,7 +135,7 @@ static int bfin_yuv420_bgr555(SwsContext *c, uint8_t **in, int *instrides,
                            outstrides, ff_bfin_yuv2rgb555_line, 0, 555);
 }
 
-static int bfin_yuv420_rgb24(SwsContext *c, uint8_t **in, int *instrides,
+static int bfin_yuv420_rgb24(SwsContext *c, const uint8_t **in, int *instrides,
                              int srcSliceY, int srcSliceH,
                              uint8_t **oplanes, int *outstrides)
 {
@@ -139,7 +143,7 @@ static int bfin_yuv420_rgb24(SwsContext *c, uint8_t **in, int *instrides,
                            outstrides, ff_bfin_yuv2rgb24_line, 1, 888);
 }
 
-static int bfin_yuv420_bgr24(SwsContext *c, uint8_t **in, int *instrides,
+static int bfin_yuv420_bgr24(SwsContext *c, const uint8_t **in, int *instrides,
                              int srcSliceY, int srcSliceH,
                              uint8_t **oplanes, int *outstrides)
 {
@@ -147,7 +151,7 @@ static int bfin_yuv420_bgr24(SwsContext *c, uint8_t **in, int *instrides,
                            outstrides, ff_bfin_yuv2rgb24_line, 0, 888);
 }
 
-static int bfin_yuv420_rgb565(SwsContext *c, uint8_t **in, int *instrides,
+static int bfin_yuv420_rgb565(SwsContext *c, const uint8_t **in, int *instrides,
                               int srcSliceY, int srcSliceH,
                               uint8_t **oplanes, int *outstrides)
 {
@@ -155,7 +159,7 @@ static int bfin_yuv420_rgb565(SwsContext *c, uint8_t **in, int *instrides,
                            outstrides, ff_bfin_yuv2rgb565_line, 1, 565);
 }
 
-static int bfin_yuv420_bgr565(SwsContext *c, uint8_t **in, int *instrides,
+static int bfin_yuv420_bgr565(SwsContext *c, const uint8_t **in, int *instrides,
                               int srcSliceY, int srcSliceH,
                               uint8_t **oplanes, int *outstrides)
 {