core/scale: fix flipping of packed 16- and 32-bit images

[nihav.git] / nihav-core / src / scale / mod.rs

diff --git a/nihav-core/src/scale/mod.rs b/nihav-core/src/scale/mod.rs
index e66d393c0733917fc8c08beac3b2c98cc8302e73..f93b9d25afc32e574aa6e69bcaa8e7d7f2515c51 100644 (file)
--- a/nihav-core/src/scale/mod.rs
+++ b/nihav-core/src/scale/mod.rs
@@ -21,6 +21,7 @@ mod kernel;
 
 mod colorcvt;
 mod repack;
+#[allow(clippy::module_inception)]
 mod scale;
 
 mod palette;
@@ -319,7 +320,7 @@ pub fn flip_picture(pic: &mut NABufferType) -> ScaleResult<()> {
             }
         },
         NABufferType::Video16(ref mut vb) => {
-            let ncomp = vb.get_num_components();
+            let ncomp = vb.get_num_components().max(1);
             for comp in 0..ncomp {
                 let off    = vb.get_offset(comp);
                 let stride = vb.get_stride(comp);
@@ -331,7 +332,7 @@ pub fn flip_picture(pic: &mut NABufferType) -> ScaleResult<()> {
             }
         },
         NABufferType::Video32(ref mut vb) => {
-            let ncomp = vb.get_num_components();
+            let ncomp = vb.get_num_components().max(1);
             for comp in 0..ncomp {
                 let off    = vb.get_offset(comp);
                 let stride = vb.get_stride(comp);