[FFmpeg-cvslog] avcodec/hevcdec: hevc_await_progress: declare |y| only if used.

[Wan-Teh Chang]

ffmpeg | branch: master | Wan-Teh Chang <wtc-at-google.com at ffmpeg.org> | Thu Jul 20 11:39:11 2017 -0700| [b77e26b28525f366c5f978214b230a5324bedf81] | committer: Michael Niedermayer

avcodec/hevcdec: hevc_await_progress: declare |y| only if used.

hevc_await_progress() uses the variable |y| only inside the "if" block.
So |y| only needs to be declared and initialized in that block.

Signed-off-by: Wan-Teh Chang <wtc at google.com>
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b77e26b28525f366c5f978214b230a5324bedf81
---

 libavcodec/hevcdec.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/libavcodec/hevcdec.c b/libavcodec/hevcdec.c
index 55f51211c3..e084d75767 100644
--- a/libavcodec/hevcdec.c
+++ b/libavcodec/hevcdec.c
@@ -1684,10 +1684,11 @@ static void chroma_mc_bi(HEVCContext *s, uint8_t *dst0, ptrdiff_t dststride, AVF
 static void hevc_await_progress(HEVCContext *s, HEVCFrame *ref,
                                 const Mv *mv, int y0, int height)
 {
-    int y = FFMAX(0, (mv->y >> 2) + y0 + height + 9);
+    if (s->threads_type == FF_THREAD_FRAME ) {
+        int y = FFMAX(0, (mv->y >> 2) + y0 + height + 9);
 
-    if (s->threads_type == FF_THREAD_FRAME )
         ff_thread_await_progress(&ref->tf, y, 0);
+    }
 }
 
 static void hevc_luma_mv_mvp_mode(HEVCContext *s, int x0, int y0, int nPbW,