From 30ebabca7c3a2cea1cb871563f6097f3619c8be9 Mon Sep 17 00:00:00 2001
From: Mark Thompson <sw@jkqxz.net>
Date: Fri, 30 Sep 2016 17:47:19 +0200
Subject: [PATCH] vaapi_h265: Fix buffering parameters

A decoder may need this to be set correctly to output frames in the
right order.

(cherry picked from commit b8cac1e83066aa87e8402c146c81b77a11b5eec3)
---
 libavcodec/vaapi_encode_h265.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/libavcodec/vaapi_encode_h265.c b/libavcodec/vaapi_encode_h265.c
index 576616b71ce..48a1af87870 100644
--- a/libavcodec/vaapi_encode_h265.c
+++ b/libavcodec/vaapi_encode_h265.c
@@ -897,12 +897,12 @@ static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx)
 
         mseq->log2_max_pic_order_cnt_lsb_minus4 = 8;
         mseq->vps_sub_layer_ordering_info_present_flag = 0;
-        mseq->vps_max_dec_pic_buffering_minus1[0] = 1;
-        mseq->vps_max_num_reorder_pics[0]         = ctx->b_per_p;
+        mseq->vps_max_dec_pic_buffering_minus1[0] = (avctx->max_b_frames > 0) + 1;
+        mseq->vps_max_num_reorder_pics[0]         = (avctx->max_b_frames > 0);
         mseq->vps_max_latency_increase_plus1[0]   = 0;
         mseq->sps_sub_layer_ordering_info_present_flag = 0;
-        mseq->sps_max_dec_pic_buffering_minus1[0] = 1;
-        mseq->sps_max_num_reorder_pics[0]         = ctx->b_per_p;
+        mseq->sps_max_dec_pic_buffering_minus1[0] = (avctx->max_b_frames > 0) + 1;
+        mseq->sps_max_num_reorder_pics[0]         = (avctx->max_b_frames > 0);
         mseq->sps_max_latency_increase_plus1[0]   = 0;
 
         mseq->vps_timing_info_present_flag = 1;
-- 
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