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-rw-r--r--vp8/common/idctllm.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/vp8/common/idctllm.c b/vp8/common/idctllm.c
index 7b3ac36a5..d705fec32 100644
--- a/vp8/common/idctllm.c
+++ b/vp8/common/idctllm.c
@@ -189,6 +189,7 @@ void vp8_ihtllm_c(short *input, short *output, int pitch,
// pointers to vertical and horizontal transforms
float *ptv, *pth;
+ assert(tx_type != DCT_DCT);
// load and convert residual array into floating-point
for(j = 0; j < tx_dim; j++) {
for(i = 0; i < tx_dim; i++) {