handbrake-fix-2-pass-vp8-and-vp9-encoding.patch


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From d64dba737d0136b58545be33c50db093df1880c1 Mon Sep 17 00:00:00 2001
From: John Stebbins <jstebbins.hb@gmail.com>
Date: Tue, 27 Dec 2016 08:57:06 -0800
Subject: [PATCH] encavcodec: fix 2 pass vp8 and vp9 encoding

libvpx only supplies the stats upon the final flush of the encoder.  So
we must also write stats after final flush.
---
 libhb/encavcodec.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/libhb/encavcodec.c b/libhb/encavcodec.c
index 0543fe4..591aa4f 100644
--- a/libhb/encavcodec.c
+++ b/libhb/encavcodec.c
@@ -610,6 +610,15 @@ static void Flush( hb_work_object_t * w, hb_buffer_list_t * list )
     hb_work_private_t * pv = w->private_data;
 
     avcodec_send_frame(pv->context, NULL);
+
+    // Write stats
+    // vpx only writes stats at final flush
+    if (pv->job->pass_id == HB_PASS_ENCODE_1ST &&
+        pv->context->stats_out != NULL)
+    {
+        fprintf( pv->file, "%s", pv->context->stats_out );
+    }
+
     get_packets(w, list);
 }