diff --git a/libswscale/swscale.c b/libswscale/swscale.c
index 54924b0eef..a56cdefa3f 100644
--- a/libswscale/swscale.c
+++ b/libswscale/swscale.c
@@ -2050,7 +2050,7 @@ SwsContext *sws_getContext(int srcW, int srcH, int srcFormat, int dstW, int dstH
 	c->chrIntHSubSample= c->chrDstHSubSample;
 	c->chrIntVSubSample= c->chrSrcVSubSample;
 
-	// note the -((-x)>>y) is so that we allways round toward +inf
+	// Note the -((-x)>>y) is so that we always round toward +inf.
 	c->chrSrcW= -((-srcW) >> c->chrSrcHSubSample);
 	c->chrSrcH= -((-srcH) >> c->chrSrcVSubSample);
 	c->chrDstW= -((-dstW) >> c->chrDstHSubSample);
diff --git a/libswscale/swscale_internal.h b/libswscale/swscale_internal.h
index 5b62ea065e..d5b7d6021e 100644
--- a/libswscale/swscale_internal.h
+++ b/libswscale/swscale_internal.h
@@ -54,7 +54,7 @@ typedef struct SwsContext{
 	int chrSrcW, chrSrcH, chrDstW, chrDstH;
 	int lumXInc, chrXInc;
 	int lumYInc, chrYInc;
-	int dstFormat, srcFormat;               ///< format 4:2:0 type is allways YV12
+	int dstFormat, srcFormat;               ///< format 4:2:0 type is always YV12
 	int origDstFormat, origSrcFormat;       ///< format
 	int chrSrcHSubSample, chrSrcVSubSample;
 	int chrIntHSubSample, chrIntVSubSample;
diff --git a/libswscale/swscale_template.c b/libswscale/swscale_template.c
index ad46be1273..9c1bb5fd4e 100644
--- a/libswscale/swscale_template.c
+++ b/libswscale/swscale_template.c
@@ -2317,7 +2317,7 @@ static inline void RENAME(hScale)(int16_t *dst, int dstW, uint8_t *src, int srcW
 {
 #ifdef HAVE_MMX
 	assert(filterSize % 4 == 0 && filterSize>0);
-	if(filterSize==4) // allways true for upscaling, sometimes for down too
+	if(filterSize==4) // Always true for upscaling, sometimes for down, too.
 	{
 		long counter= -2*dstW;
 		filter-= counter*2;