swscale/swscale: delete unwanted assignments

[ffmpeg] / libswscale / output.c

diff --git a/libswscale/output.c b/libswscale/output.c
index d7c53e60d9fb02769229072bde577233b1cc78a1..7eb4644ce653aacc31c667dbd58000fe0549081f 100644 (file)
--- a/libswscale/output.c
+++ b/libswscale/output.c
@@ -410,7 +410,8 @@ static void yuv2nv12cX_c(SwsContext *c, const int16_t *chrFilter, int chrFilterS
     const uint8_t *chrDither = c->chrDither8;
     int i;
 
-    if (dstFormat == AV_PIX_FMT_NV12)
+    if (dstFormat == AV_PIX_FMT_NV12 ||
+        dstFormat == AV_PIX_FMT_NV24)
         for (i=0; i<chrDstW; i++) {
             int u = chrDither[i & 7] << 12;
             int v = chrDither[(i + 3) & 7] << 12;
@@ -629,28 +630,28 @@ yuv2mono_2_c_template(SwsContext *c, const int16_t *buf[2],
         }
         c->dither_error[0][i] = err;
     } else {
-    for (i = 0; i < dstW; i += 8) {
-        int Y, acc = 0;
-
-        Y = (buf0[i + 0] * yalpha1 + buf1[i + 0] * yalpha) >> 19;
-        accumulate_bit(acc, Y + d128[0]);
-        Y = (buf0[i + 1] * yalpha1 + buf1[i + 1] * yalpha) >> 19;
-        accumulate_bit(acc, Y + d128[1]);
-        Y = (buf0[i + 2] * yalpha1 + buf1[i + 2] * yalpha) >> 19;
-        accumulate_bit(acc, Y + d128[2]);
-        Y = (buf0[i + 3] * yalpha1 + buf1[i + 3] * yalpha) >> 19;
-        accumulate_bit(acc, Y + d128[3]);
-        Y = (buf0[i + 4] * yalpha1 + buf1[i + 4] * yalpha) >> 19;
-        accumulate_bit(acc, Y + d128[4]);
-        Y = (buf0[i + 5] * yalpha1 + buf1[i + 5] * yalpha) >> 19;
-        accumulate_bit(acc, Y + d128[5]);
-        Y = (buf0[i + 6] * yalpha1 + buf1[i + 6] * yalpha) >> 19;
-        accumulate_bit(acc, Y + d128[6]);
-        Y = (buf0[i + 7] * yalpha1 + buf1[i + 7] * yalpha) >> 19;
-        accumulate_bit(acc, Y + d128[7]);
-
-        output_pixel(*dest++, acc);
-    }
+        for (i = 0; i < dstW; i += 8) {
+            int Y, acc = 0;
+
+            Y = (buf0[i + 0] * yalpha1 + buf1[i + 0] * yalpha) >> 19;
+            accumulate_bit(acc, Y + d128[0]);
+            Y = (buf0[i + 1] * yalpha1 + buf1[i + 1] * yalpha) >> 19;
+            accumulate_bit(acc, Y + d128[1]);
+            Y = (buf0[i + 2] * yalpha1 + buf1[i + 2] * yalpha) >> 19;
+            accumulate_bit(acc, Y + d128[2]);
+            Y = (buf0[i + 3] * yalpha1 + buf1[i + 3] * yalpha) >> 19;
+            accumulate_bit(acc, Y + d128[3]);
+            Y = (buf0[i + 4] * yalpha1 + buf1[i + 4] * yalpha) >> 19;
+            accumulate_bit(acc, Y + d128[4]);
+            Y = (buf0[i + 5] * yalpha1 + buf1[i + 5] * yalpha) >> 19;
+            accumulate_bit(acc, Y + d128[5]);
+            Y = (buf0[i + 6] * yalpha1 + buf1[i + 6] * yalpha) >> 19;
+            accumulate_bit(acc, Y + d128[6]);
+            Y = (buf0[i + 7] * yalpha1 + buf1[i + 7] * yalpha) >> 19;
+            accumulate_bit(acc, Y + d128[7]);
+
+            output_pixel(*dest++, acc);
+        }
     }
 }
 
@@ -686,19 +687,19 @@ yuv2mono_1_c_template(SwsContext *c, const int16_t *buf0,
         }
         c->dither_error[0][i] = err;
     } else {
-    for (i = 0; i < dstW; i += 8) {
-        int acc = 0;
-        accumulate_bit(acc, ((buf0[i + 0] + 64) >> 7) + d128[0]);
-        accumulate_bit(acc, ((buf0[i + 1] + 64) >> 7) + d128[1]);
-        accumulate_bit(acc, ((buf0[i + 2] + 64) >> 7) + d128[2]);
-        accumulate_bit(acc, ((buf0[i + 3] + 64) >> 7) + d128[3]);
-        accumulate_bit(acc, ((buf0[i + 4] + 64) >> 7) + d128[4]);
-        accumulate_bit(acc, ((buf0[i + 5] + 64) >> 7) + d128[5]);
-        accumulate_bit(acc, ((buf0[i + 6] + 64) >> 7) + d128[6]);
-        accumulate_bit(acc, ((buf0[i + 7] + 64) >> 7) + d128[7]);
-
-        output_pixel(*dest++, acc);
-    }
+        for (i = 0; i < dstW; i += 8) {
+            int acc = 0;
+            accumulate_bit(acc, ((buf0[i + 0] + 64) >> 7) + d128[0]);
+            accumulate_bit(acc, ((buf0[i + 1] + 64) >> 7) + d128[1]);
+            accumulate_bit(acc, ((buf0[i + 2] + 64) >> 7) + d128[2]);
+            accumulate_bit(acc, ((buf0[i + 3] + 64) >> 7) + d128[3]);
+            accumulate_bit(acc, ((buf0[i + 4] + 64) >> 7) + d128[4]);
+            accumulate_bit(acc, ((buf0[i + 5] + 64) >> 7) + d128[5]);
+            accumulate_bit(acc, ((buf0[i + 6] + 64) >> 7) + d128[6]);
+            accumulate_bit(acc, ((buf0[i + 7] + 64) >> 7) + d128[7]);
+
+            output_pixel(*dest++, acc);
+        }
     }
 }
 
@@ -853,11 +854,6 @@ yuv2422_1_c_template(SwsContext *c, const int16_t *buf0,
                 V  = av_clip_uint8(V);
             }
 
-            Y1 = av_clip_uint8(Y1);
-            Y2 = av_clip_uint8(Y2);
-            U  = av_clip_uint8(U);
-            V  = av_clip_uint8(V);
-
             output_pixels(i * 4, Y1, U, Y2, V);
         }
     } else {
@@ -875,11 +871,6 @@ yuv2422_1_c_template(SwsContext *c, const int16_t *buf0,
                 V  = av_clip_uint8(V);
             }
 
-            Y1 = av_clip_uint8(Y1);
-            Y2 = av_clip_uint8(Y2);
-            U  = av_clip_uint8(U);
-            V  = av_clip_uint8(V);
-
             output_pixels(i * 4, Y1, U, Y2, V);
         }
     }
@@ -2506,7 +2497,8 @@ av_cold void ff_sws_init_output_funcs(SwsContext *c,
     } else {
         *yuv2plane1 = yuv2plane1_8_c;
         *yuv2planeX = yuv2planeX_8_c;
-        if (dstFormat == AV_PIX_FMT_NV12 || dstFormat == AV_PIX_FMT_NV21)
+        if (dstFormat == AV_PIX_FMT_NV12 || dstFormat == AV_PIX_FMT_NV21 ||
+            dstFormat == AV_PIX_FMT_NV24 || dstFormat == AV_PIX_FMT_NV42)
             *yuv2nv12cX = yuv2nv12cX_c;
     }