Hi!

Attached patch should fix ticket #7542.

Please comment, Carl Eugen
From 21f3c281dbd9d97ac47ed611958a85881c4b7fba Mon Sep 17 00:00:00 2001
From: Carl Eugen Hoyos <[email protected]>
Date: Sun, 25 Aug 2019 18:12:30 +0200
Subject: [PATCH] lavfi/movie: Use filter thread count for decoding threads.

Fixes ticket #7542.
---
 libavfilter/src_movie.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavfilter/src_movie.c b/libavfilter/src_movie.c
index bcabfcc4c2..78c73e78a4 100644
--- a/libavfilter/src_movie.c
+++ b/libavfilter/src_movie.c
@@ -153,7 +153,7 @@ static AVStream *find_stream(void *log, AVFormatContext *avf, const char *spec)
     return found;
 }
 
-static int open_stream(void *log, MovieStream *st)
+static int open_stream(AVFilterContext *ctx, MovieStream *st)
 {
     AVCodec *codec;
     int ret;
@@ -173,6 +173,7 @@ static int open_stream(void *log, MovieStream *st)
         return ret;
 
     st->codec_ctx->refcounted_frames = 1;
+    st->codec_ctx->thread_count = ff_filter_get_nb_threads(ctx);
 
     if ((ret = avcodec_open2(st->codec_ctx, codec, NULL)) < 0) {
         av_log(log, AV_LOG_ERROR, "Failed to open codec\n");
-- 
2.22.1

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