avcodec/vp9dec: Constify VP9TileData->VP9Context pointer target

This is possible now that ff_thread_await_progress() accepts
a const ThreadFrame*.

Reviewed-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/libavcodec/vp9_mc_template.c b/libavcodec/vp9_mc_template.c
index 0340c9f48a..e654c0e5ed 100644
--- a/libavcodec/vp9_mc_template.c
+++ b/libavcodec/vp9_mc_template.c
@@ -33,7 +33,7 @@ static void FN(inter_pred)(VP9TileData *td)
         { 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4 },
         { 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4, 4 },
     };
-    VP9Context *s = td->s;
+    const VP9Context *s = td->s;
     VP9Block *b = td->b;
     int row = td->row, col = td->col;
     const ThreadFrame *tref1 = &s->s.refs[s->s.h.refidx[b->ref[0]]], *tref2;