swscale: use yuv2packed1() functions for unscaled chroma also.

13 years ago · 9d9c846491
parent d63b7d8c37
commit 9d9c846491
1 changed files with 2 additions and 2 deletions
--- a/libswscale/swscale.c
+++ b/libswscale/swscale.c
@ -589,8 +589,8 @@ static int swScale(SwsContext *c, const uint8_t* src[],
            } else {
                assert(lumSrcPtr  + vLumFilterSize - 1 < lumPixBuf  + vLumBufSize*2);
                assert(chrUSrcPtr + vChrFilterSize - 1 < chrUPixBuf + vChrBufSize*2);
-                if (c->yuv2packed1 && vLumFilterSize == 1 && vChrFilterSize == 2) { //unscaled RGB
-                    int chrAlpha = vChrFilter[2 * dstY + 1];
+                if (c->yuv2packed1 && vLumFilterSize == 1 && vChrFilterSize <= 2) { //unscaled RGB
+                    int chrAlpha = vChrFilterSize == 1 ? 0 : vChrFilter[2 * dstY + 1];
                    yuv2packed1(c, *lumSrcPtr, chrUSrcPtr, chrVSrcPtr,
                                alpPixBuf ? *alpSrcPtr : NULL,
                                dest[0], dstW, chrAlpha, dstY);