tests/imgutils: test the output of av_image_fill_* functions

Signed-off-by: NJames Almer <jamrial@gmail.com>

libavutil/tests/imgutils.c

@@ -22,6 +22,7 @@
 
 int main(void)
 {
+    const AVPixFmtDescriptor *desc = NULL;
     int64_t x, y;
 
     for (y = -1; y<UINT_MAX; y+= y/2 + 1) {
@@ -31,6 +32,43 @@ int main(void)
         }
         printf("\n");
     }
+    printf("\n");
+
+    while (desc = av_pix_fmt_desc_next(desc)) {
+        uint8_t *data[4];
+        size_t sizes[4];
+        ptrdiff_t linesizes1[4], offsets[3] = { 0 };
+        int i, total_size, w = 64, h = 48, linesizes[4];
+        enum AVPixelFormat pix_fmt = av_pix_fmt_desc_get_id(desc);
+
+        if (av_image_fill_linesizes(linesizes, pix_fmt, w) < 0)
+            continue;
+        for (i = 0; i < 4; i++)
+            linesizes1[i] = linesizes[i];
+        if (av_image_fill_plane_sizes(sizes, pix_fmt, h, linesizes1) < 0)
+            continue;
+        total_size = av_image_fill_pointers(data, pix_fmt, h, (void *)1, linesizes);
+        if (total_size < 0)
+            continue;
+        printf("%-16s", desc->name);
+        for (i = 0; i < 4 && data[i]; i++);
+        printf("planes: %d", i);
+        // Test the output of av_image_fill_linesizes()
+        printf(", linesizes:");
+        for (i = 0; i < 4; i++)
+            printf(" %3d", linesizes[i]);
+        // Test the output of av_image_fill_plane_sizes()
+        printf(", plane_sizes:");
+        for (i = 0; i < 4; i++)
+            printf(" %5"SIZE_SPECIFIER, sizes[i]);
+        // Test the output of av_image_fill_pointers()
+        for (i = 0; i < 3 && data[i + 1]; i++)
+            offsets[i] = data[i + 1] - data[i];
+        printf(", plane_offsets:");
+        for (i = 0; i < 3; i++)
+            printf(" %5"PTRDIFF_SPECIFIER, offsets[i]);
+        printf(", total_size: %d\n", total_size);
+    }
 
     return 0;
 }