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-rw-r--r--libavcodec/indeo3.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/libavcodec/indeo3.c b/libavcodec/indeo3.c
index 2c966624dd..83c97bb96d 100644
--- a/libavcodec/indeo3.c
+++ b/libavcodec/indeo3.c
@@ -770,7 +770,8 @@ static int parse_bintree(Indeo3DecodeContext *ctx, AVCodecContext *avctx,
/* get motion vector index and setup the pointer to the mv set */
if (!ctx->need_resync)
ctx->next_cell_data = &ctx->gb.buffer[(get_bits_count(&ctx->gb) + 7) >> 3];
- curr_cell.mv_ptr = &ctx->mc_vectors[*(ctx->next_cell_data++) << 1];
+ if(ctx->mc_vectors)
+ curr_cell.mv_ptr = &ctx->mc_vectors[*(ctx->next_cell_data++) << 1];
curr_cell.tree = 1; /* enter the VQ tree */
UPDATE_BITPOS(8);
} else { /* VQ tree DATA code */