1 files changed, 1 insertions, 5 deletions
diff --git a/src/libffmpeg/libavcodec/smc.c b/src/libffmpeg/libavcodec/smc.c
index e937b03c8..dbb5adef1 100644
--- a/src/libffmpeg/libavcodec/smc.c
+++ b/src/libffmpeg/libavcodec/smc.c
@@ -125,7 +125,7 @@ static void smc_decode_stream(SmcContext *s)
             chunk_size, s->size);
 
     chunk_size = s->size;
-    total_blocks = (s->avctx->width * s->avctx->height) / (4 * 4);
+    total_blocks = ((s->avctx->width + 3) / 4) * ((s->avctx->height + 3) / 4);
 
     /* traverse through the blocks */
     while (total_blocks) {
@@ -448,10 +448,6 @@ static int smc_decode_frame(AVCodecContext *avctx,
 {
     SmcContext *s = (SmcContext *)avctx->priv_data;
 
-    /* no supplementary picture */
-    if (buf_size == 0)
-        return 0;
-
     s->buf = buf;
     s->size = buf_size;