From d8754de7c31bc2ec775a73001132862e007f4c9a Mon Sep 17 00:00:00 2001
From: Peter Fog <tintwotin>
Date: Mon, 15 Feb 2021 11:49:19 +0100
Subject: FFmpeg: Improve multi-threading settings for VSE proxies

Following code from D8627 this patch corrects multi threaded processing
of proxies, where a 60 sec proxy generation drops to 35 sec.

Differential Revision: https://developer.blender.org/D8659
---
 source/blender/imbuf/intern/indexer.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'source')

diff --git a/source/blender/imbuf/intern/indexer.c b/source/blender/imbuf/intern/indexer.c
index 20e1febedd7..f10e3b31141 100644
--- a/source/blender/imbuf/intern/indexer.c
+++ b/source/blender/imbuf/intern/indexer.c
@@ -40,6 +40,8 @@
 
 #include "BKE_global.h"
 
+#  include "BLI_threads.h"
+
 #ifdef WITH_AVI
 #  include "AVI_avi.h"
 #endif
@@ -495,6 +497,8 @@ static struct proxy_output_ctx *alloc_proxy_output_ffmpeg(
   rv->st->id = 0;
 
   rv->c = rv->st->codec;
+  rv->c->thread_count = BLI_system_thread_count();
+  rv->c->thread_type = FF_THREAD_SLICE;
   rv->c->codec_type = AVMEDIA_TYPE_VIDEO;
   rv->c->codec_id = AV_CODEC_ID_MJPEG;
   rv->c->width = width;
-- 
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