avfilter/vf_rotate: fix location of update operation

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavfilter/vf_rotate.c

@@ -335,8 +335,6 @@ static int filter_slice(AVFilterContext *ctx, void *arg, int job, int nb_jobs)
             int32_t v;
             int x1, y1;
             uint8_t *pin, *pout;
-            x += c;
-            y -= s;
             x1 = x>>16;
             y1 = y>>16;
 
@@ -372,6 +370,8 @@ static int filter_slice(AVFilterContext *ctx, void *arg, int job, int nb_jobs)
                     break;
                 }
             }
+            x += c;
+            y -= s;
         }
         xprime += s;
         yprime += c;

tests/ref/fate/filter-pixfmts-rotate

@@ -1,20 +1,20 @@
-0bgr                8bce6fc2b0532e6dceee3bae394c170b
-0rgb                b1f893e98c87f32d0131f7f019bd3c10
-abgr                a5b742253d41be91ee1726980c39fca5
-argb                deb903538e653598c119bfcee2aee651
-bgr0                bdf68c2709492abc5d05cbae373dee7d
-bgr24               e669ad05a12b8a5f853b599f38fa9725
-bgra                2353862686c14bbfe3a103aaec8ab6ed
-gbrap               4d19ce999a450498fd71c3764b2f9aa7
-gbrp                149393d82ef85a102f62a78aeccc86b6
-gray                b40cc829f4310691c717a8162c945fc2
-rgb0                e7b835d6ddfcfe87632604a81c2468e7
-rgb24               1b1b62bd26d83988f4ec51584ebea300
-rgba                f0bdbad87cace97926025917a010ffa2
-yuv410p             98b7126c5e00687e033da047ec44dc59
-yuv420p             c67848288b31393a1045efb335c533ce
-yuv444p             2d017f98f986810246068d2a3af3049b
-yuva420p            1ee052f2688c6caf9f08cc9ede7c133e
-yuva444p            dd7bccf95744e374295be468e882b96d
-yuvj420p            34aa87584344e7ba0dbe92f89d865de7
-yuvj444p            d1b2eb2ea933839a2cb587043a789313
+0bgr                979522e1115cd253cb531e26216084ee
+0rgb                1eadac4ec11fdcc2fe205f1b443f5360
+abgr                cff4da9c08268792efadcdb3192cab4d
+argb                cb9db4de21026dffd63716660b77e104
+bgr0                aa85111028cfcf59d22b21b764e767e3
+bgr24               aad1662159f1b4a7258270a175dcc3f3
+bgra                9eeaa89344ed4266bc6c9bd5ffc03b16
+gbrap               3aab798f7ff4e641bbd710cfea84f5b4
+gbrp                f5f2c992b6bbe1a5a11ce361eed95308
+gray                28371cc84367c01807d7ac374343aa37
+rgb0                f843a29d4dd63f27203f05a9475af657
+rgb24               f06c68509dd7a4b3a5ca39f0783edba0
+rgba                029074e91fbcdd43ba2e6e48a0bdbbd5
+yuv410p             b98886adb9fc00a8be5e58a515278a48
+yuv420p             f3ddf03e0802a292b4cfecdc9f64e522
+yuv444p             1c8f2bd43afbb1de8ec3078ca4f94117
+yuva420p            761944cf562e2a968e8275ce6d750fd7
+yuva444p            dbe62d6e155c8b16e7a708efe3967208
+yuvj420p            e3750224275c04421e7b9a35af7b8677
+yuvj444p            107d01d31b86dd8381d6c28e5a090281