X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fhevc_refs.c;h=4f6d985ae604fc46b000bc72bbc82630c449c00b;hb=e83717e63eab1f1b78dc0990e5b8e927097fca29;hp=7870a72fd6d2c12c890c55d64dafef0f4907d32f;hpb=da8936969fe695a042282d5686e12227745d299a;p=ffmpeg

diff --git a/libavcodec/hevc_refs.c b/libavcodec/hevc_refs.c
index 7870a72fd6d..4f6d985ae60 100644
--- a/libavcodec/hevc_refs.c
+++ b/libavcodec/hevc_refs.c
@@ -358,23 +358,15 @@ int ff_hevc_slice_rpl(HEVCContext *s)
     return 0;
 }
 
-static HEVCFrame *find_ref_idx(HEVCContext *s, int poc)
+static HEVCFrame *find_ref_idx(HEVCContext *s, int poc, uint8_t use_msb)
 {
+    int mask = use_msb ? ~0 : (1 << s->ps.sps->log2_max_poc_lsb) - 1;
     int i;
-    int LtMask = (1 << s->ps.sps->log2_max_poc_lsb) - 1;
-
-    for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
-        HEVCFrame *ref = &s->DPB[i];
-        if (ref->frame->buf[0] && (ref->sequence == s->seq_decode)) {
-            if ((ref->poc & LtMask) == poc)
-                return ref;
-        }
-    }
 
     for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
         HEVCFrame *ref = &s->DPB[i];
         if (ref->frame->buf[0] && ref->sequence == s->seq_decode) {
-            if (ref->poc == poc || (ref->poc & LtMask) == poc)
+            if ((ref->poc & mask) == poc)
                 return ref;
         }
     }
@@ -427,9 +419,9 @@ static HEVCFrame *generate_missing_ref(HEVCContext *s, int poc)
 
 /* add a reference with the given poc to the list and mark it as used in DPB */
 static int add_candidate_ref(HEVCContext *s, RefPicList *list,
-                             int poc, int ref_flag)
+                             int poc, int ref_flag, uint8_t use_msb)
 {
-    HEVCFrame *ref = find_ref_idx(s, poc);
+    HEVCFrame *ref = find_ref_idx(s, poc, use_msb);
 
     if (ref == s->ref || list->nb_refs >= HEVC_MAX_REFS)
         return AVERROR_INVALIDDATA;
@@ -485,7 +477,7 @@ int ff_hevc_frame_rps(HEVCContext *s)
         else
             list = ST_CURR_AFT;
 
-        ret = add_candidate_ref(s, &rps[list], poc, HEVC_FRAME_FLAG_SHORT_REF);
+        ret = add_candidate_ref(s, &rps[list], poc, HEVC_FRAME_FLAG_SHORT_REF, 1);
         if (ret < 0)
             goto fail;
     }
@@ -495,7 +487,7 @@ int ff_hevc_frame_rps(HEVCContext *s)
         int poc  = long_rps->poc[i];
         int list = long_rps->used[i] ? LT_CURR : LT_FOLL;
 
-        ret = add_candidate_ref(s, &rps[list], poc, HEVC_FRAME_FLAG_LONG_REF);
+        ret = add_candidate_ref(s, &rps[list], poc, HEVC_FRAME_FLAG_LONG_REF, long_rps->poc_msb_present[i]);
         if (ret < 0)
             goto fail;
     }