[FFmpeg-cvslog] cbs_av1: fix incorrect data type

[Fei Wang]

ffmpeg | branch: release/4.4 | Fei Wang <fei.w.wang at intel.com> | Tue Oct 12 16:23:56 2021 +0800| [8aab15a91d6e8ca726580e969ff71828ad63baaa] | committer: Wolfgang Haupt

cbs_av1: fix incorrect data type

Since order_hint_bits_minus_1 range is 0~7, cur_frame_hint can be
most 128. And similar return value for cbs_av1_get_relative_dist.
So if plus them and use int8_t for the result may lose its precision.

Signed-off-by: Fei Wang <fei.w.wang at intel.com>
(cherry picked from commit e7ff5722b1abae4284e79da707e71ff82b409699)

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8aab15a91d6e8ca726580e969ff71828ad63baaa
---

 libavcodec/cbs_av1_syntax_template.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/cbs_av1_syntax_template.c b/libavcodec/cbs_av1_syntax_template.c
index 6fe6e9a4f3..d98d3d42de 100644
--- a/libavcodec/cbs_av1_syntax_template.c
+++ b/libavcodec/cbs_av1_syntax_template.c
@@ -355,7 +355,7 @@ static int FUNC(set_frame_refs)(CodedBitstreamContext *ctx, RWContext *rw,
         AV1_REF_FRAME_ALTREF2, AV1_REF_FRAME_ALTREF
     };
     int8_t ref_frame_idx[AV1_REFS_PER_FRAME], used_frame[AV1_NUM_REF_FRAMES];
-    int8_t shifted_order_hints[AV1_NUM_REF_FRAMES];
+    int16_t shifted_order_hints[AV1_NUM_REF_FRAMES];
     int cur_frame_hint, latest_order_hint, earliest_order_hint, ref;
     int i, j;