From 2b8151c80690a71db2cf8009855b4ae1a6abdd4c Mon Sep 17 00:00:00 2001
From: Mark Thompson <sw@jkqxz.net>
Date: Fri, 25 Nov 2016 12:36:05 +0000
Subject: [PATCH] hwcontext_vaapi: Don't abort on failing to allocate from a
 fixed-size pool

Cherry-picked from Libav d30719e62de68975cbc7ffd318df03a183037563.

Signed-off-by: wm4 <nfxjfg@googlemail.com>
---
 libavutil/hwcontext_vaapi.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libavutil/hwcontext_vaapi.c b/libavutil/hwcontext_vaapi.c
index 6176bdc880..da15f89130 100644
--- a/libavutil/hwcontext_vaapi.c
+++ b/libavutil/hwcontext_vaapi.c
@@ -397,6 +397,10 @@ static AVBufferRef *vaapi_pool_alloc(void *opaque, int size)
     VAStatus vas;
     AVBufferRef *ref;
 
+    if (hwfc->initial_pool_size > 0 &&
+        avfc->nb_surfaces >= hwfc->initial_pool_size)
+        return NULL;
+
     vas = vaCreateSurfaces(hwctx->display, ctx->rt_format,
                            hwfc->width, hwfc->height,
                            &surface_id, 1,