swscale/swscale_unscaled: Fix packed_16bpc_bswap() with slices

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
8 years ago · 47bc1bdafb
parent 89ec11e096
commit 47bc1bdafb
1 changed files with 1 additions and 0 deletions
--- a/libswscale/swscale_unscaled.c
+++ b/libswscale/swscale_unscaled.c
@ -352,6 +352,7 @@ static int packed_16bpc_bswap(SwsContext *c, const uint8_t *src[],
        int min_stride         = FFMIN(FFABS(srcstr), FFABS(dststr));
        if(!dstPtr || !srcPtr)
            continue;
+        dstPtr += (srcSliceY >> c->chrDstVSubSample) * dststr;
        for (i = 0; i < (srcSliceH >> c->chrDstVSubSample); i++) {
            for (j = 0; j < min_stride; j++) {
                dstPtr[j] = av_bswap16(srcPtr[j]);