Commit 009f829d authored by Ronald S. Bultje's avatar Ronald S. Bultje
Browse files

swscale: fix crash in bilinear scaling.

parent 88aa2159
......@@ -194,6 +194,7 @@ typedef struct SwsContext {
#define Y_TEMP "11*8+4*4*256*2+40"
#define ALP_MMX_FILTER_OFFSET "11*8+4*4*256*2+48"
#define UV_OFF "11*8+4*4*256*3+48"
#define UV_OFFx2 "11*8+4*4*256*3+56"
DECLARE_ALIGNED(8, uint64_t, redDither);
DECLARE_ALIGNED(8, uint64_t, greenDither);
......@@ -217,6 +218,7 @@ typedef struct SwsContext {
DECLARE_ALIGNED(8, uint64_t, y_temp);
int32_t alpMmxFilter[4*MAX_FILTER_SIZE];
DECLARE_ALIGNED(8, ptrdiff_t, uv_off); ///< offset (in pixels) between u and v planes
DECLARE_ALIGNED(8, ptrdiff_t, uv_offx2); ///< offset (in bytes) between u and v planes
#if HAVE_ALTIVEC
vector signed short CY;
......
......@@ -1001,6 +1001,7 @@ int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter)
c->lumPixBuf[i] = c->lumPixBuf[i+c->vLumBufSize];
}
c->uv_off = dst_stride_px;
c->uv_offx2 = dst_stride;
for (i=0; i<c->vChrBufSize; i++) {
FF_ALLOC_OR_GOTO(c, c->chrUPixBuf[i+c->vChrBufSize], dst_stride*2+1, fail);
c->chrUPixBuf[i] = c->chrUPixBuf[i+c->vChrBufSize];
......
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