[FFmpeg-devel] [PATCH] hevc_refs: reduce code duplication in find_ref_idx()

[Anton Khirnov]

---
 libavcodec/hevc_refs.c | 22 ++++++----------------
 1 file changed, 6 insertions(+), 16 deletions(-)

diff --git a/libavcodec/hevc_refs.c b/libavcodec/hevc_refs.c
index 73aa6d8caf..4f6d985ae6 100644
--- a/libavcodec/hevc_refs.c
+++ b/libavcodec/hevc_refs.c
@@ -360,24 +360,14 @@ int ff_hevc_slice_rpl(HEVCContext *s)
 
 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;
 
-    if (use_msb) {
-        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)
-                    return ref;
-            }
-        }
-    } else {
-        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 & mask) == poc)
+                return ref;
         }
     }
 
-- 
2.26.2

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