lavu: add AV_CEIL_RSHIFT and use it in various places

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/libavcodec/mimic.c b/libavcodec/mimic.c
index b8b3285050..6f43723ef6 100644
--- a/libavcodec/mimic.c
+++ b/libavcodec/mimic.c
@@ -392,8 +392,8 @@ static int mimic_decode_frame(AVCodecContext *avctx, void *data,
         avctx->height  = height;
         avctx->pix_fmt = AV_PIX_FMT_YUV420P;
         for (i = 0; i < 3; i++) {
-            ctx->num_vblocks[i] = -((-height) >> (3 + !!i));
-            ctx->num_hblocks[i] =     width   >> (3 + !!i);
+            ctx->num_vblocks[i] = AV_CEIL_RSHIFT(height,   3 + !!i);
+            ctx->num_hblocks[i] =                width >> (3 + !!i);
         }
     } else if (width != ctx->avctx->width || height != ctx->avctx->height) {
         avpriv_request_sample(avctx, "Resolution changing");