From: Tim Walker <tdskywalker@gmail.com>
Date: Sat, 17 Sep 2016 12:54:01 +0000 (+0200)
Subject: encx265: flag all HEVC random access points as keyframes.
X-Git-Tag: 1.0.0~213^2~1
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=843e327e0d62e730c0d36d5cbe1e43d9dd329308;p=handbrake

encx265: flag all HEVC random access points as keyframes.
---

diff --git a/libhb/encx265.c b/libhb/encx265.c
index 9cb23bd08..fdfe7cf21 100644
--- a/libhb/encx265.c
+++ b/libhb/encx265.c
@@ -390,6 +390,11 @@ static hb_buffer_t* nal_encode(hb_work_object_t *w,
     // copy the bitstream data
     for (i = 0; i < nnal; i++)
     {
+        if (HB_HEVC_NALU_KEYFRAME(nal[i].type))
+        {
+            buf->s.flags |= HB_FLAG_FRAMETYPE_REF;
+            buf->s.flags |= HB_FLAG_FRAMETYPE_KEY;
+        }
         memcpy(buf->data + buf->size, nal[i].payload, nal[i].sizeBytes);
         buf->size += nal[i].sizeBytes;
     }
diff --git a/libhb/h265_common.h b/libhb/h265_common.h
index 3a5edf111..3711d35cd 100644
--- a/libhb/h265_common.h
+++ b/libhb/h265_common.h
@@ -10,6 +10,10 @@
 #ifndef HB_H265_COMMON_H
 #define HB_H265_COMMON_H
 
+// inspired by libavcodec/hevc.h
+// in HEVC, all "random access point" NAL units are keyframes
+#define HB_HEVC_NALU_KEYFRAME(nal_unit_type) (((nal_unit_type) >= 16) && ((nal_unit_type) <= 23))
+
 static const char * const      hb_h265_tier_names[] = { "auto", "main", "high", NULL, };
 static const char * const   hb_h265_profile_names_8bit[] = { "auto", "main", "mainstillpicture", NULL, };
 static const char * const   hb_h265_profile_names_10bit[] = { "auto", "main10", "main10-intra", NULL, };