Hap decoder and encoder

[ffmpeg] / libavcodec / hevc_mvs.c

diff --git a/libavcodec/hevc_mvs.c b/libavcodec/hevc_mvs.c
index cc5a16ce72ffb0d43afebec91e544f1399c72632..23ea2ec2ee2a85bef07929bd24555a6973df143e 100644 (file)
--- a/libavcodec/hevc_mvs.c
+++ b/libavcodec/hevc_mvs.c
@@ -141,13 +141,13 @@ static av_always_inline void mv_scale(Mv *dst, Mv *src, int td, int tb)
 {
     int tx, scale_factor;
 
-    td = av_clip_int8_c(td);
-    tb = av_clip_int8_c(tb);
+    td = av_clip_int8(td);
+    tb = av_clip_int8(tb);
     tx = (0x4000 + abs(td / 2)) / td;
-    scale_factor = av_clip_c((tb * tx + 32) >> 6, -4096, 4095);
-    dst->x = av_clip_int16_c((scale_factor * src->x + 127 +
+    scale_factor = av_clip((tb * tx + 32) >> 6, -4096, 4095);
+    dst->x = av_clip_int16((scale_factor * src->x + 127 +
                              (scale_factor * src->x < 0)) >> 8);
-    dst->y = av_clip_int16_c((scale_factor * src->y + 127 +
+    dst->y = av_clip_int16((scale_factor * src->y + 127 +
                              (scale_factor * src->y < 0)) >> 8);
 }
 
@@ -257,8 +257,10 @@ static int temporal_luma_motion_vector(HEVCContext *s, int x0, int y0,
 
     HEVCFrame *ref = s->ref->collocated_ref;
 
-    if (!ref)
+    if (!ref) {
+        memset(mvLXCol, 0, sizeof(*mvLXCol));
         return 0;
+    }
 
     tab_mvf = ref->tab_mvf;
     colPic  = ref->poc;
@@ -468,7 +470,7 @@ static void derive_spatial_merge_candidates(HEVCContext *s, int x0, int y0,
     // temporal motion vector candidate
     if (s->sh.slice_temporal_mvp_enabled_flag &&
         nb_merge_cand < s->sh.max_num_merge_cand) {
-        Mv mv_l0_col, mv_l1_col;
+        Mv mv_l0_col = { 0 }, mv_l1_col = { 0 };
         int available_l0 = temporal_luma_motion_vector(s, x0, y0, nPbW, nPbH,
                                                        0, &mv_l0_col, 0);
         int available_l1 = (s->sh.slice_type == B_SLICE) ?
@@ -479,14 +481,10 @@ static void derive_spatial_merge_candidates(HEVCContext *s, int x0, int y0,
             mergecandlist[nb_merge_cand].is_intra     = 0;
             mergecandlist[nb_merge_cand].pred_flag[0] = available_l0;
             mergecandlist[nb_merge_cand].pred_flag[1] = available_l1;
-            if (available_l0) {
-                mergecandlist[nb_merge_cand].mv[0]      = mv_l0_col;
-                mergecandlist[nb_merge_cand].ref_idx[0] = 0;
-            }
-            if (available_l1) {
-                mergecandlist[nb_merge_cand].mv[1]      = mv_l1_col;
-                mergecandlist[nb_merge_cand].ref_idx[1] = 0;
-            }
+            AV_ZERO16(mergecandlist[nb_merge_cand].ref_idx);
+            mergecandlist[nb_merge_cand].mv[0]      = mv_l0_col;
+            mergecandlist[nb_merge_cand].mv[1]      = mv_l1_col;
+
             if (merge_idx == nb_merge_cand)
                 return;
             nb_merge_cand++;